Mining Plan of Ramayanpatti limestone mines (31.

092 Ha) Krishna Mines

MINING PLAN
Under Rule – 24(A) of MCR – 1960
&
PROGRESSIVE MINE CLOSURE PLAN
Under Rule 23B(3) of MCDR – 198
FOR
KRISHNA MINES (Rc.No8480/MM4/2002)
EXTENT - 31.092 Ha
Village – Ramayanpatti
Taluk & District - Tirunelveli

Registration number under Rule – 45 - IBM/5567/2011

Mineral - Limestone
Type of Land – Revenue
Category of Mine – A Category(Fully Mechanised)
Mine Plan Period – 2012 -13(From 28.1.13) to 2017-18

LESSEE
Krishna Mines
23, Sripuram, Tirunelveli
Tamilnadu.
Ph – 0462 – 233200

Prepared by
M.S. Jayaram
RQP/MAS/173/2003/A Valid upto 09.07.2023

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Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

PLATES

MINING PLAN
Under Rule – 24(A) of MCR – 1960
&
PROGRESSIVE MINE CLOSURE PLAN
Under Rule 23B(3) of MCDR – 198
FOR
KRISHNA MINES (Rc.No8480/MM4/2002)
EXTENT - 31.092 Ha
Village – Ramayanpatti
Taluk & District - Tirunelveli

Registration number under Rule – 45 - IBM/5567/2011

Mineral - Limestone
Type of Land – Revenue
Category of Mine – A Category(Fully Mechanised)
Mine Plan Period – 2012 -13(From 28.1.13) to 2017-18

LESSEE
Krishna Mines
23, Sripuram, Tirunelveli
Tamilnadu.
Ph – 0462 – 233200

Prepared by
M.S. Jayaram
RQP/MAS/173/2003/A Valid upto 09.07.2023

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Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

LIST OF ANNEXURES

S. NO DESCRIPTION ANNEXURE

1 Lease Deed Annexure – 1

2 Renewal Application Annexure – 2

3 Form „D‟ Acknowledgement for Renewal Application Annexure – 2A

4 Prospecting License Application Annexure – 3

5 Scheme of Mining Approval Letter. Annexure – 4

6 Partnership Deed Annexure – 5

7 Copy of Registration of Company Annexure – 6

8 Photo ID of Authorised Signatory Annexure – 7

9 RQP Certificate Annexure – 8

10 Bore Hole Logs Annexure – 9

11 Feasibility Report Annexure – 10

12 NABL Analysis Annexure – 11

13 Ambient Air Quality Data Annexure – 12

14 Noise Quality Data Annexure – 13

15 Water Quality Data Annexure – 14

16 General Power of Attorney Annexure – 15

17 Common working boundary permission letter Annexure – 16

18 Bank Guarantee Annexure – 17

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

LIST OF PLATES

S.NO PLATE NO DETAILS SCALE

1 PLATE – 1 Key Plan 1:50000

2 PLATE – 1A Location Plan 1:64000

3 PLATE- 2 Lease sketch 1 : 5000

4 PLATE- 3 Surface Plan

1:2000

5 Geological Plan
PLATE- 4 1:2000

6 Geological Cross section

PLATE- 5 1:2000

7 Longitudinal Sections.
PLATE- 5A 1:2000

8 PLATE- 6A Production and Development at the end of 2013-14 year 1:2000

9 PLATE- 6B Production and Development at the end of 2014-15 year 1:2000

10 PLATE - 6C Production and Development at the end of 2015 -16 year 1:2000

11 PLATE - 6D Production and Development at the end of 2016 -17 year 1:2000

12 PLATE – 6E Production and Development at the end of 2017 – 18 year 1:2000

13 Yearwise Cross Sections

PLATE - 7 1:2000

14 PLATE – 8 Conceptual Plan

1:2000

15 Conceptual Cross Sections

PLATE - 9 1:2000

16 Environmental Plan
PLATE – 10 1:5000

17 Progressive Mine Closure Plan

PLATE – 11 1:2000

18 Environment Management Plan

PLATE – 12 1:2000

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Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CONTENTS

S.NO CHAPTER NO DETAILS PAGE NOS

INTRODUCTION 1

1 1.0 GENERAL 6

2 2.0 LOCATION &ACCESSIBILITY 8

3 3.0 GEOLOGY AND EXPLORATION 10

4 4.0 MINING 30

5 5.0 BLASTING 58

6 6.0 MINE DRAINAGE 60

7 7.0 DISPOSAL OF WASTE 62

8 8.0 USE OF MINERAL 66

9 9.0 OTHERS 69

10 10.0 MINERAL PROCESSING 71

11 11.0 ENVIRONMENTAL MANAGEMENT PLAN 72

12 12.0 PROGRESSIVE MINE CLOSURE PLAN 91

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

TABLES

S.No. Table No Details Page No.

1 Table No - 1 DETAILS OF THE LEASE 1

2 Table No - 2 DETAILS OF THE LEASE HELD BY THE COMPANY 2

3 Table No - 3 EXPLORATION PROGRAMME ACTUAL ACHIEVED 3

DETAILS OF WASTE DISPOSAL PROPOSED VERSUS

4 Table No - 4 3
ACTUAL ACHIEVED

DETAILS OF PRODUCTION PROPOSED VERSUS ACTUAL

5 Table No - 5 4
ACHIEVED

DETAILS OF AFFORESTATION PROPOSED VERSUS

6 Table No - 6 5
ACTUAL ACHIEVED

TYPICAL ANALYSIS OF LIMESTONE AND MAGNESIUM

7 Table No - 7 11
LIMESTONE

8 Table No - 8 DETAILS OF BORE HOLE DRILLED 12

9 Table No - 9 DETAILS OF BORE HOLE PROPOSED 13

10 Table No - 10 GEOLOGICAL & MINEABLE RESERVES 14

11 Table No - 11 LIMESTONE AND HIGH MAGNESIUM LIMESTONE 17

12 Table No - 12 MINEABLE RESERVES 18

13 Table No - 13 CAPITAL COST 24

14 Table No - 14 OPERATING COST 25

15 Table No - 15 FUNDS FLOW STATEMENT 26

16 Table No - 16 DETAILS OF RESULTS OF NABCB LAB 29

SUMMARY OF YEAR WISE PRODUCTION &

17 Table No - 17 32
DEVELOPMENT

18 Table No - 18 PRODUCTION OF LIMESTONE AND MAGNESIUM 33

DETAILS OF LOCATION, BENCH, RL AND YEAR WISE

19 Table No - 19 35
QUANTITIES

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

20 Table No - 20 DETAILS OF YEAR WISE PRODUCTION & DEVELOPMENT 38

21 Table No - 21 SUMMARY OF CONCEPTUAL QUANTITIES 45

22 Table No - 22 SUMMARY OF CONCEPTUAL QUANTITIES 46

23 Table No - 23 WASTE GENERATION DURING CONCEPTUAL PLAN 51

24 Table No - 24 DETAILS OF THE EXISTING DUMP 52

25 Table No - 25 CONCEPTUAL LAND USE 53

26 Table No - 26 LIST OF MINING MACHINERY 57

27 Table No - 27 CHEMICAL CHARACTERISTICS OF THE WASTE 62

28 Table No - 28 WASTE GENERATED DURING THE PLAN PERIOD 62

29 Table No - 29 DIMENSIONS OF THE EXISTING DUMP 63

DETAILS OF PROPOSED DUMP DURING THE PLAN

30 Table No - 30 63
PERIOD

31 Table No - 31 ANALYSIS OF SUB GRADE DUMP 64

SUMMARY OF SUB GRADE GENERATED DURING PLAN

32 Table No - 32 64
PERIOD

33 Table No - 33 SUB GRADE DUMP QUANTITY 65

34 Table No - 34 DIMENSION OF PROPOSED SUB GRADE DUMP 65

35 Table No - 35 EXISTING SUB GRADE DUMP 67

36 Table No - 36 EXISTING LAND USE 73

LAND USE PATTERN OF THE STUDY AREA FALLING

37 Table No - 37 77
WITHIN 10KM RADIUS

38 Table No - 38 DETAILS OF THE PROPOSED AFFORESTATION 82

39 Table No - 39 DETAILS OF THE BLAST MONITORED 84

DETAILS OF THE GROUND VIBRATION AND AIR
40 Table No - 40 85
OVERPRESSURE

41 Table No - 41 ENVIRONMENTAL COST 88

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

42 Table No - 42 ENVIRONMENTAL PRODUCTION CARRIED OUT 104

43 Table No - 43 PRE – PLANTING & NURSERY 123

44 Table No - 44 CREATION AND MAINTENANCE 123

45 Table No - 45 YEARLY PROPOSAL FOR ITEM NO.6 & 7 PMCP 125

46 Table No - 46 FINANCIAL ASSURANCE 130

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

MINING PLAN FOR KRISHNA MINES – FOR RC NO 8480/MM4/2002 (G.O.M.S. NO

1081 - OLD) OVER AN EXTENT OF 31.092 HA IN RAMAYANPATTI VILLAGE TIRUNELVELI
TALUK & DISTRICT, TAMILNADU.
Submitted under Rule – 24(A) of MCR - 1960
Introduction
Krishna Mines is situated in Ramayanpatti village in Tirunelveli Taluk and District in
Tamil Nadu. This mine is supplying a major portion of their limestone production to M/S. The
India Cements Limited, Sankar Nagar for their modernized dry process cement plant.

The mining Lease is covered under G.O.M.S. 1081-old dated 2-9-1983 was originally
granted vide G.O.M.S. 2557 dated 10-5-1962 for a period of 20 years from the date of execution
of the Lease deed on 28-1-1963 and the lease expired on 27-1-83. When the application was
filed for their first renewal, the same was granted only for six years. The applicant appealed
through revision application to the central government requesting the lease period to be
extended for twenty years. Finally the Government of Tamil Nadu, after obtaining the final order
from Central government, extended the mining lease period to twenty years from 28-01-1983
which got expired on 27-1-2003.

After that the applicant has also submitted an application for second renewal, dated on
23-1-2002 for which mining plan was prepared and got approved vide No
TN/TNL/MP/CST/1452/2 dated 19-12-02 up to 2007-08. Subsequently the mine plan was
modified to capitalize on the good market existing for high magnesium limestone and the
modified mine plan was approved vide Lr.No TN/TNL/MP/CST/1610/SZ dated 12.08.2005.
Details of the lease is given under Table No- 1
Details of the lease Table No- 1
------------------------------------------------------------------------------------------------------------------------------
S.No G.O.Ms.No & Date Extent (Ha.) Villages Period of lease
__________________________________________________________________________________
1) G.O.Ms.No – 1081 31.092 Ramayanpatti 20 years
Dated 02.09.1983

2) Rc.No8480/MM4/2002 31.092 Ramayanpatti 10 years

Valid upto 27.01.2013

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

 The G.O.Ms.No – 1081 was applied for renewal letter dated 23.01.2002.
 The Second renewal was granted vide letter Rc.No.8480/MM4/2002 dated 11.06.04 with
effect from 28.01.2003 to 27.01.2013 valid for 10 years only.
 The lease deed has been executed.
 Although the lessee wanted renewal for 20 years lease renewal was granted for 10
years only. Copy of Mine lease deed is enclosed Vide Annexure – 1.
 Hence the lessee has applied for renewal of the lease on M2/3239/2012 dated
24.01.2012. Copy of the renewal application and its acknowledgement are enclosed vide
Annexure – 2 & 2A.
The lessee is holding one more lease only in the state of Tamilnadu. The details are given
below in Table No- 2

Details of the lease held by the lessee Table No- 2

Sl.no. Lease no. & date Area Postal address / location Type of Remarks
(Ha) minerals
1 G.O.M.S.NO.48 (OLD) / 12.12 Krishna Mines Limestone
115 23, Sripuram, Tirunelveli
Tamil Nadu.
Pin Code : 627 001
Ph :0462– 233200
Fax:-0462 – 2339248

Besides the lessee has applied for prospecting license over an extent of 31.97 Ha (Patta
Lands) on 18.01.2013 (Refer Annexure- 3).
Submission of Mining plan

The existing scheme of mining is for the period 2008-2013 valid up to 27.01.2013. The
Scheme of mining was approved vide letter No TN/TNL/ LST/MS-602-SZ dated 31.01.12
(Annexure – 4)
Since the lessee has applied for renewal of the lease a fresh mining plan is being
prepared and submitted under Rule 24(A)of MCR - 1960.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Review of important chapters of the approved Scheme of Mining:

i) Exploration
Proposed :- 14 Holes were proposed in the previous scheme period.
Actual: - Further it was programmed to drill 14 bore holes during the year 2012-13 (5 holes
during the previous scheme period) and 2013-14 (9 holes during the first year of the present
scheme period. However the 5 bore holes planned during the last year of the previous scheme
period could not be completed and the same will be completed along with 9 holes during the
present scheme period. The details of exploration program is given in Table No- 3
Exploration programme actual versus achieved Table No- 3
Year Bore Hole Id Location Proposed Actual Remarks
metreage achieved
2013 - 14 PBH - 1 N – 450, E – 50 40 m Nil
2013 - 14 PBH - 2 N – 450, E – 150 40 m Nil
2013 - 14 PBH – 3 N – 450, E – 250 40 m Nil
2013 - 14 PBH – 4 N – 550, E – 150 40 m Nil
5 bore holes planned during the
2013 - 14 PBH - 5 N – 550, E – 250 40 m Nil
last year of the previous scheme
2014 - 15 PBH – 6 N – 150, E – 150 40 m Nil
2014 - 15 PBH – 7 N – 250, E – 50 40 m Nil period could not be completed and
2014 - 15 PBH – 8 N – 250, E – 150 40 m Nil the same will be completed along
2014 - 15 PBH – 9 N – 250, E – 250 40 m Nil with 9 holes during the present
2014 - 15 PBH – 10 N – 350, E – 50 40 m Nil scheme period
2014 - 15 PBH – 11 N – 350, E – 150 40 m Nil
2014 - 15 PBH – 12 N -130, E - 0 40 m Nil
2014 - 15 PBH – 13 N -85, E - 60 40 m Nil
2014 - 15 PBH - 14 N - 85, E - 160 40 m Nil
560 m

ii) Waste disposal

Details of waste disposal proposed versus actual achieved is given in Table No- 4
Table No- 4
Year Waste Disposal Planned as Actual Reasons for deviation
per approved Mining Plan (Tonnes)
(Tonnes)
2008-09 - 872878 Scheme of mining was submitted only for the last 2
2009-10 - 1885672 years after violation was issued by IBM. Hence the
2010-11 - proposed development quantity for 2008-09 to 2010-
11 is left blank, whereas the actual achieved is given
1743472 against actual column.
2011-12 58785 1524338 Additional development was done for removal of the
2012-13 99154 570772 waste dump on the North western side of the lease
as per the DDMS violation letter.
CR/Limestone/GI/VL/2017 dated 06.09.2012.
TOTAL 157939 6597132

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Reason for additional handling: During the plan period it was propose to handle 0.157 Mil.T
whereas the actual handling is 2.09 Mil.T. Additional development was done for removal of the
waste dump on the North western side of the lease as per the DDMS violation letter.
CR/Limestone/GI/VL/2017 dated 06.09.2012..

iii) Production
Details of production proposed versus actual achieved is given in Table No- 5
Table No- 5
Year Production Actual Reasons for deviation
Planned + Sub Production
grade dump ( Tonnes)
working ( Tonnes)
2008-09 - Scheme of mining was submitted only for the last 2
291521 years after violation was issued by IBM. Hence the
2009-10 - 289999 proposed production quantity for 2008-09 to 2010-
2010-11 - 11 is left blank, whereas the actual achieved is
229996 given against actual column
2011-12 332714 As the limestone intake of India cements was more
the lessee exceeded the production. The increase
in production was necessitated as the Limestone
intake from Koodangulam mines decreased.
Krishna mines was operating a hydrated lime unit
which has expanded necessitating increase in
370918 production of magnesian limestone to the unit.
2012-13 400032 370935 The production is within the targeted quantity.

Note: The production carried out during 2008-09, 2009-10 & 2010-11 is 291521 T, 289999 T
& 229996 T respectively.

Justification for the deviation:-

Out of the targeted production of 732746 T during 2011-12 & 2012-13 as per the approved
Scheme of Mining the actual production was 741853 T.
In the fourth year of the scheme period the production was more than the planed quantity as
intake of India cements plant was more. The increase in production was necessitated as the
India Cements limestone intake from Koodangulam mines decreased.
Krishna mines was operating a hydrated lime unit which has expanded necessitating
increase in production of magnesian limestone to the unit.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

iv) Location wise afforestation

Details of afforestation proposed versus actual achieved is given in Table No- 6
Table No- 6
Afforestatio Extent of Location Actual Remarks
Year Area in n Planned Actual plantatio
Ha. as per plantation n
approval (In Ha)
2008-09 Nil Nil 0.15 On the southern 350
2009-10 Nil Nil 0.35 side of the lease 750
2010-11 Nil Nil 0.35 and on the Dump 650
2011-12 0.20 500 0.20 in the 500
Northwestern side
2012-13 0.20 500 0.15 375

TOTAL Nil Nil 1.20 2625

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER –1

1.0 General
1.GENERAL
a) Name of the applicant M/s Krishna Mines
Address 23, Sripuram
District Tirunelveli
State Tamilnadu
Pin Code 627 001
Phone 2333200 (STD Code 0462)
Fax 2339248 (STD Code 0462)
e-mail Krishnamines@sancharnet.in
Partnership firm
Mr.Vinayak Shankar has been made Partnership deed holder residing
in the below mentioned address.
Mr.Vinayak Shankar
“Farm House”,
b) Status of the applicant 187 Sankarankoil Road,
Ramayanpatti,
Tirunelveli - 627358
Copy of Partnership deed is enclosed as Annexure - 5
Copy of the Registration of the Company and Photo ID of Authorised
signatory are enclosed as Annexure – 6 & 7.
c) Mineral(s) which are
occuring in the area and
Limestone
which the applicant intends
to mine
d)Period for which the --------------------------------------------------------------------------------------------
G.O.Ms.No & Date Extent (Ha.) Villages Period of lease
mining lease is granted /
G.O.Ms.No – 1081 31.092 Ramayanpatti 20 years
renewed / proposed to be Dated 02.09.1983
applied Rc.No8480/MM4/2002 31.092Ramayanpatti 10 years
Valid upto 27.01.2013
The lessee has applied of renewal of the lease on M2/3239/2012 dated
24.01.2012 for a further period of 20 years. Copy of renewal application and
form – D received from Collector‟s office is enclosed vide Annexure 2 &
2A.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

e) Name of the RQP M.S.Jayaram

preparing the mining plan
New No – 49, Old No – 23
Umapathy Street
Address
West Mambalam
Chennai – 600 033.
Phone - 044 – 24722195,
Phone
Mobile - 9952961106

Fax Nil

e-mail empres05@rediffmail.com

Telex Nil

Registration No. RQP/MAS/173/2003/A (Refer Annexure – 8 for RQP certificate)

Date of grant 10.07.2003

Valid upto 09.07.2013

f) Name of the prospecting Krishna Mines

agency
Address : 23, Sripuram
: Tirunelveli.
Address
State : Tamilnadu
Pin code : 627001
Phone 2333200 (STD Code 0462)
Fax 2339248 (STD Code 0462)
g) Reference no. and date Second renewal was granted vide letter Rc.No.8480/MM4/2002 dated
of consent letter from the 11.06.04 with effect from 28.01.2003 to 27.01.2013 valid for 10 years
State Govt.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER – 2

2.0 Location and Accessibility

a) Details of the area (with location Plan)
i) District and State Tirunelveli District in the state of Tamil Nadu
ii) Taluk Tirunelveli
iii) Village Ramayanpatti
iv) Khasra No./ Plot No S.F.Nos -
767,768,769,770,771,772,773,774,775,776,777,778,
779,780, 781,782,783,784,785,786,787,788,789,790,791/2

DETAILS OF THE GROUND CONTROL POINTS

Bearing From LATITUDE &
Sl.No Distance
North LONGITUDE
N - 8°47'41",
GCP I - OLD OFFICE ROOM E - 77°41'10"
A 632 M 4° 45' 58"
B 225 M 16° 57' 11"
C 31 M 158° 23' 46"
N - 8°47'42",
GCP II - ANFO MIXING SHED E - 77°40'22"
C 377 M 262° 26' 52"
D 249 M 107° 18' 45"
F 401 M 53° 26' 20"
N - 8°47'40",
GCP III - SURVEY PILLAR E - 77°40'28"
D 21 M 151° 26' 53"
E 107 M 92° 12' 57"
F 309 M 17° 55' 10"
N - 8°47'40.5",
GCP IV - NEW WEIGH BRIDGE E - 77°40'32.4"
E 41 M 142° 07' 38"
F 267 M 2° 50' 56"

N - 8°47'56",
GCP V - MAGAZINE E - 77°40'32.2"
G 205 M 195° 38' 03"
H 424 M 247° 37' 07"
I 344 M 297° 08' 51"
J 151 M 39° 05' 02"

v) Lease area 31.092 Ha of patta land.

Refer Plate No.2 for Lease Plan.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

vi) Whether the area is recorded to be The entire applied lease area falls in only Patta and no
in forest (Please specify whether forest area is involved.
protected reserved etc.)
vii) Ownership / Occupancy 31.092 Ha of Patta lands are owned by the company.

viii) Existence of public road/railway Road

line, if any nearby and approximate The mining site is located at a distance of 10 Kms west
distance. of Sankar Nagar.
The area can also be accessed by road from Tirunelveli
to Sankarankovil which gets bifurcated near
Sethurayanpudur village
Railway Line
The nearest rail head is at Thaliayuthu, at a distance of
12Km
Airport : The nearest airport is at Thootukudi which is
at a distance of about 60 kms.
ix) Toposheet No with latitude and Mining lease area falls in the survey of India Toposheet
longitude No. 58 H/9
 Latitude : 8o 48‟ 00” to 8o 47‟ 40”
 Longitude: 77o 40‟ 7” to 77o 40‟ 33”
Key Plan enclosed. Refer Plate No. 1 & Plate No – 1A
for location plan.
x) Land use pattern (Forest, The lease area falls in the patta land owned by the
Agriculture, Grazing, Barren etc. Company. There is no Forest nor grazing land in the
lease area.

b) Attach a general location and vicinity map showing area boundaries and existing and
proposed access routes. It is preferred that the area be marked on a survey of India
Topographical map or a cadastral map of forest map as the case may be. However, if
none of these are available, the area should on an accurate sketch map on a scale of
1:5000.

A general location and vicinity map showing area boundaries and the existing access
routes are shown on the location plan which is enclosed as Plate No.-1A.

Since the existing routes are being followed to reach the lease area no fresh access
routes are shown,

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER - 3
PART – A
3.0 GEOLOGY & EXPLORATION
3.1 Physiography (Topography and Drainage):
Physiography :

The Mining lease area is almost a flat terrain, with the gradual increase in the gradient
from the southern side to the northern side. There is a small hillock on the northern side. There
is no natural water course passing through this area. However, as a precaution an earthern
bund has been formed on the northern side to prevent rain water flow inside the mine pit. There
is no forest land in and around the areas. There is no other important surface feature such as
public monuments, place of interest etc., within 5 km radius of the mining lease area. The mine
is flanked both on eastern side and western side by mines of M/s. India Cements Limited. The
adjacent land on the southern side is also dry land due to meager rainfall in this area. The
mining lease area, surrounding the limestone deposit is contoured.
The mining lease area, surrounding the limestone deposit is contoured and the maximum
elevation of the area is 91 m above M.S.L and the minimum elevation is 75 m above M.S.L.
Refer Surface plan (Plate – 3)

Besides this, there are no important surface features such as public monuments, place
of interest etc., within 5 Km radius of the mining lease area.

3.2 Geology of the Mine:

The Limestone deposit of Krishna Mines belongs to Archeans and represents the
metamorphosed sediments of Dhawarian Age and forms part of the major Ramayanpatti
Limestone band, which traverse in the East – West direction and runs for about 3 Kilometers.
This is one of the most important limestone formation of Tamilnadu. Many of the captive
mines of India Cements Limited and South India Mines and Minerals Industries Limited are
located in this limestone band. Limestone is seen occurring as a linear body in the mining
lease area. It is narrow in the eastern side and gets wider on the western side. Limestone
band is striking in East-West direction. The dip direction is towards south. The angle of dip is
750 towards south. This limestone is flanked by Kankar followed by quartzite on the northern
side and magnesium limestone, calcareous quartzite and calc gneisses on the southern side.

18
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

The country rocks on the hanging wall side are subjected to the effects of weathering and
they are quite compact and stable. The contact rocks are also dipping in the same direction.
Calc gneiss is seen as a contact rock on the footwall side. The colour of limestone varies from
white, honey yellow, blue and pink with varying gradation in physical and chemical
characteristics. The general sequence and rock formation from foot wall (North) to hanging
wall (South) sides are given below. Refer Geological plan (Plate – 4)
Kankar
Limestone
Magnesian Limestone
Pink Limestone
Charnockite
The Limestone deposit in the Krishna Mines belongs to Archeans and represents the
metamorphosed sediments of Dhawarian Age and forms part of the major Ramayanpatti
Limestone band, which traverse on the East – West direction.

Thickness : The limestone band is about 540 m in length with inclusions of charnockite and the
associated mafic minerals. Bordering the crystalline limetone, charnockites are seen for 20 -30
m. The inclusions in limestone vary from 0.5 m to 3.0 m.

Chemical Characterisitics : The typical analysis of kankar, limestone and magnesium

limestone is included under para 3.4.6 in the mine plan. Typical anlaysis of limestone and
magnesium limestone is given under Table no - 7

Kankar : The top kankar analysis about 65 – 70 % of total carbonate. But since it is a working
mine the entire kankar is removed and utilized.
Typical analysis of limestone and magnesium limestone Table no - 7
Cement Grade Limestone Magnesium Limestone
Caco3 - 84.9 Caco3 - 72.8
MgCo3 - 1.8 MgCo3 - 14.2
Sio2 - 9.4 Silica - 11.5
Cao - 48 Cao - 40
Mgo - 1 Mgo - 7.1
R203 - 3.2 R203 - 1.0
Loss on Ignition - 37.6 Loss on ignition - 40.8

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

3.3. Exploration
3.3.1. Already Carried out in the Area :
The applicant has done preliminary investigations in the past, like pitting, trenching and
drilling core bore holes.
Cross sections (6 nos) were drawn based on the 12 bore holes drilled in 2006 & June
2011. Besides, the earlier drilled 5 bore holes and 6 DTH holes were taken into consideration
while computing the reserves. Details of bore holes drilled are given in Table No – 8. Refer
Bore holes logs enclosed vide Annexure -9.
Bore hole KM /N-1 falls in the 31.092 Ha lease only which is under discussion. However
part of the angular hole drilled to a depth of 115 m go into the adjacent lease. In this lease only
34 m bisected is taken for estimation. For future proposed holes the diameter & the angle,
depth and the intended mRL is mentioned below.
Details of the Bore holes drilled are given below in Table No- 8

S.No Bore Hole Location Depth of Type of

No/ID Drilling (m) Borehole
1 BH - 1 N – 333 E - 54 40.00m Core
2 BH - 2 N – 133 E - 56 60.00m Core
3 BH - 3 N – 340 E - 214 40.00m Core
4 BH - 4 N – 139 E - 216 40.00m Core
5 BH –5 N – 344 E - 373 45.00m Core
6 BH - 6 N – 145 E - 376 45.00m Core
7 BH - 7 N – 350 E - 534 85.00m Core
8 KM/ N -1 N – 300 E - 530 115.0m Core
9 KM/ I- 1 N – 263 E - 335 51.00m Core
10 KM/K-1 N – 314 E - 402 81.00m Core
11 KM/K-2 N – 250 E - 403 87.20m Core
12 KM/P -1 N – 290 E - 612 65.00m Core
13 KDV-12 N – 295 E - 470 43.00m Core
14 KDV-13 N – 260 E - 509 49.00m Core
15 KDV-14 N – 260 E - 495 52.00m Core
16 KDV-16 N – 269 E - 363 81.00m Core
17 KDV-18 N – 311 E - 328 76.00m Core

20
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Proposed to be carried out:

Enough exploration by bore holes have already been carried out in the lease based on
which mining plan is being prepared.
Although sufficient detailed exploration work has been carried out extensively and the
reserves have been estimated under proved category further exploration is proposed to convert
the reserves placed under and resource category to proved reserves and to further prove the
extensions of the limestone. Further it was programmed to drill 14 bore holes during the year
2012-13 (5 holes during the previous scheme period) and 2013-14 (9 holes during the first year
of the present plan/scheme period. However the 5 bore holes planned during the last year of the
previous scheme period could not be completed and the same will be completed along with 9
holes during the present plan/scheme period. Details of the bore holes proposed are given
below in Table No - 9.
Details of the bore holes proposed Table No - 9
S.No Year Proposed Coordinates Angle of Diameter Intended Depth Remarks
Bore Hole Id Inclination of hole m RL (m)
0
1 2013 - 14 PBH - 1 N – 450, E – 50 90 42 40
0
2 2013 - 14 PBH - 2 N – 450, E – 150 90 Each hole 26.4 40
0 will have a
3 2013 - 14 PBH – 3 N – 450, E – 250 90 26.5 40
diameter The entire
0
4 2013 - 14 PBH – 4 N – 550, E – 150 90 of 88 40 exploration
0 54 mm i.e program of 14
5 2013 - 14 PBH - 5 N – 550, E – 250 90 81 40
NX Size holes will be
0
6 2014 - 15 PBH – 6 N – 150, E – 150 90 Core 33 40 completed

7 2014 - 15 PBH – 7 N – 250, E – 50 90

0 Core 66 40 within the
next two
0
8 2014 - 15 PBH – 8 N – 600, E – 50 90 90 40
years
0
9 2014 - 15 PBH – 9 N – 600, E – 230 90 88.5 40
0
10 2014 - 15 PBH – 10 N – 350, E – 50 90 10.2 40
0
11 2014 - 15 PBH – 11 N – 350, E – 150 90 -6 40
0
12 2014 - 15 PBH – 12 N -130, E - 0 90 59.2 40
0
13 2014 - 15 PBH – 13 N -85, E - 60 90 68.7 40
0
14 2014 - 15 PBH - 14 N - 85, E - 160 90 52.7 40
0
15 2014 - 15 PBH - 15 N-267, E-450 90 38.9 40
0
16 2014 - 15 PBH - 16 N-280, E-550 90 54.00 40

21
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

3.4 Reserves :
For the purpose of estimation of reserves, cross sectional method has been followed
(Cross sectional area x length of influence in metres x tonnage conversion factor). Six
geological cross sections are drawn on the grid lines with equal section interval of 100 metres.
Reserves have been calculated upto a depth – 40 RL. Refer Plate No- 5 for Geological Cross
section.

For the calculation of the geological reserves a recovery percentage of 85% and the
tonnage conversion factor of 2.5 is assumed. The reserve estimation was done up to – 40 R.L,
i.e. up to a depth of 120m.

The lessee has two mining leases, namely RC.NO8480/MM4/2002 (G.O.No.1081) and
G.O.No.115 which are adjacent to each other. However the reserves for both the leases have
been estimated separately.

Cement grade limestone has been classified on the basis of CaO and MgO content of
limestone, which could be used in the process of manufacturing cement and for CEM. The
gross reserves for limestone, which are mainly white and pink limestone within the mining lease
area was estimated. Besides high magnesium limestone which has a good market in various
industries and can also be blended with high grade limestone and used in cement manufacture
is also considered for reserve estimation.
Geological & Mineable Reserves as 30.06.2011(As given in previous scheme of Mining)

Table No - 10

MINERAL GO.No. GEOLOGICAL MINEABLE

1081/Rc.No RESERVES RESERVES
8480/MM4/2002 (Tonnes) (Tonnes)
Lime Stone Limestone 6843201 6538019
High Mg Limestone 6133377 5933712
SUB TOTAL 12976578 12471731
MINERAL GO.No. RESOURCES RESOURCES
1081/Rc.No (Tonnes) (Tonnes)
8480/MM4/2002
Lime Stone Limestone 1424806 1411349
High Mg Limestone 530120 492210
SUB TOTAL 1954926 1903559
GRAND TOTAL 14931504 14375290

22
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

The reserves estimated above are as on 30.06.2011. The production during the last 2
years of the scheme period i.e 2011-12 & 2012-13 (upto end of Nov 2012) is reduced from the
already estimated reserves to arrive at the residual reserves.

The quantity of limestone produced from the mines during 2011-12 & 2012-13(upto end
of Nov – 2012) is 619192 Tonnes. Hence the residual mineable reserve is 11852539 Tonnes or
11.852 Mil.T(12471731 – 619192 = 11852539 T).

However, as a cross check, the reserves were again re-estimated based on the cross
section and the residual reserves were arrived. The same has been discussed in the following
paras.

3.4.1 Reserves as on 28.01.2013

No additional drilling was undertaken during the previous scheme period. The reserves
are updated as on 28.01.2013 i.e from the date from which renewal should be effected.

3.4.2 Reserves as per UNFC Classification :

Parameters considered for reserves / resources estimation :

 17 bore holes(core drilling) for a total metreage of 1055.20 m has been drilled which
forms the basis of reserve estimation. Refer Geological plan (Plate No– 4)
 The spacing of bore holes is on average 200 * 100.
 Since detailed exploration is carried out as per the requirement of UNFC classification
the Geological axis is kept as G1.
 Tonnage Conversion factor of limestone and waste considered for reserves
computation is 2.50-tones/cubic meter volume respectively.
 Limestone deposits are always associated with solution cavities and clay pockets and
cavity fillings. This deposit is no exception. Keeping in view of all these factors and a
recovery factor of 85%, for the purpose of reserve estimation is arrived at. The 85 %
recovery also takes care of the mining losses, safety parameters etc.
 The reserve estimation is done based on the cross sectional method.
 Cross sections are drawn with the existing results obtained from the boreholes drilled.
 6 Cross sections were drawn based on which the reserves estimation is carried out.
 The reserves have been estimated upto a depth of bore hole drilled in each of the
sections and no lateral extension has been assumed for reserve estimation.
Since the reserves were estimated upto the depth of bore holes drilled with no lateral
extensions there is slight very little or no change in the reserves.

23
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

A) Proved mineral reserves (111)

 For the calculation of the mineable reserves, safety distance and bench
parameters are considered.
 A 450 line is drawn on the footwall and the hang wall side and the ultimate pit limit
is established for calculation of the reserves.

Similarly the mineable reserves are Limestone and magnesium limestone respectively.
works out to 10.192 Mil.T, of which 6.282 and 3.910 Mil.T respectively.

B) Blocked Mineral reserves(Feasibility Mineral Resource 211)

Reserves blocked in the safety zone and other mining parameters formed feasibility
Mineral Resource 211 which works out to 2.19 Mil.T out of which 1.159 and 1.033 Mil.T is
limestone and high magnesium limestone respectively.

C) Inferred Mineral resources - 333

Reserves projected upto -40 RL (Along section EE‟ and FF‟) formed Inferred Mineral
resources. As limestone occurance is traced to a depth of -40RL in other sections i.e AA‟ to DD‟
the reserves are projected along EE‟ and FF‟. Inferred Mineral Resource 333 works out to 1.225
Mil.T out of which 0.395 and 0.829 Mil.T is Limestone and high magnesium limestone
respectively.
Detailed calculation of reserves is given in Table No - 12

UNFC classification:
The details of the reserves as per UNFC classification is given in Table No -11
Proved Mineral Reserves - CODE - 111
As per the UNFC classification a code of 111 is given for proved Ore. The reasons for
assigning codes are explained below.
The salient points assumed while arriving at the UNFC code is as follows
 The deposit has a regular habit one with steep dip. Hence the deposit can be treated as
strata bound deposit of regular habit.
 Detailed exploration has been carried out by drilling 17 bore holes and 6 DTH holes.
Hence the reserves falling within the drilled blocks are treated as proved reserves.
 Mining is under operation economically since 1963. Hence higher level of code i.e. 1 has
been given for proved reserves.

24
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Feasibility Mineral Resource - CODE – 211

 Reserves have been established taking into consideration both quality and quantity.
Hence geology code is given as “1”.
 Feasibility study is carried out, hence the feasibility axis is given as “1”
 However since the reserves are blocked in the safety margin which cannot be mined, the
Economic axis is assumed as 2.

Inferred Mineral Resource CODE – 333

For the reserves where grade and mineral quantity can be estimated with low level of
confidence, the same is taken as Inferred mineral resource and given a code of 333.

Limestone and High magnesium limestone (As on 28.01.2013) Table No - 11

Classification Code Quantity Grade
(In Tonnes)
1 2 3 4
Total mineral Reserves (A+B)
A. Mineral Reserve +35% CAO
1. Proved Mineral Reserve
a. Limestone 111 6282013
b. High. Mg. Limestone 111 3910877
2. Probable Mineral Reserve
a. Limestone 121 & 122 Nil -
b. High. Mg. Limestone 121 & 122 Nil -
B. Remaining Resource
1. Feasibility Mineral Resource 211 -
a. Limestone 1159393 -
b. High. Mg. Limestone 1033703 -
2.Prefeasibility Mineral Resource 221 & 222 Nil -
3.Measured Mineral Resource 331 Nil -
4.Indicated Mineral Resource 332 Nil -
5.Inferred Mineral Resource 333 Nil
a. Limestone 395463
b. High. Mg. Limestone 829600
6.Reconnaissance Mineral Resource 334
13611047

25
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Detailed calculation of reserves Table No - 12

MINEABLE RESERVES AS ON 28.01.2013 – (PROVED – 111)
UPTO -40 RL Limestone.

Side Burden Inter Burden Silicious Lst

Mineral Area of Area of
Sl. Section Limestone Reject sibeburde Interburd
No on Area Influence Volume TCF Qty n Quantity en Quantity Area Quantity
(Tonnes (Tonnes
(m2) (m) (m3) (Tonnes) (Tonnes) (m2) ) (m2) ) (m2) (Tonnes)
1 A-A' 7820 50 391021 2.5 830919 146633 1700 212450 2144 268052 2876 359455
2 B-B' 5185 100 518500 2.5 1101812 194437 1821 455345 1570 392380 2926 731384
3 C-C' 9433 100 943270 2.5 2004448 353726 2191 547745 4475 1118740 3009 752301
4 D-D' 9970 100 996970 2.5 2118562 373864 2088 522122 2683 670757 663 165840
5 E-E' 1065 100 106481 2.5 226273 39930 1515 378873 1889 472182 1810 452548
6 F-F' 0 100 0 2.5 0 0 0 0 3160 790113 1610 402527
6282013 1108590 2116535 3712224 2864055

UPTO -40 RL Magnesian Lst.

Mineral
Sl. Section Area Influe Volume Limestone Reject
No. on (sq.m) nce (CU.M) TCF Qty (T)
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 5582 50 279123 2.5 593136 104671
2 B-B' 4965 100 496485 2.5 1055031 186182
3 C-C' 2816 100 281587 2.5 598371 105595
4 D-D' 3889 100 388867 2.5 826341 145825
5 E-E' 1884 100 188446 2.5 400447 70667
6 F-F' 2059 100 205906 2.5 437550 78141
3910877 691081
Grand total 10192890 1799672

26
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Table No - 12

DETAILS OF BLOCKED UP RESREVES (Prefeasibility Mineral Resource 221)

UPTO -40
RL Hg Lst.

Section Area Interburden

Sl.No. on (sq.m) Influence Volume TCF Limestone Waste
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 822 90 73980 2.5 157208 27743
A-A' 7820 40 312817 2.5 664735 117306
2 B-B' 70 100 7000 2.5 14875 2625
3 C-C' 727 100 72700 2.5 154488 27263
4 D-D' 791 100 79100 2.5 168088 29663
5 E-E' 0 100 0 2.5 0 0
6 F-F' 0 100 0 2.5 0 0

1159393 204599

UPTO -40 Magnesian

RL Lst.

Section Area Interburden

Sl.No. on (sq.m) Influence Volume TCF Limestone Waste
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 1205 90 108450 2.5 230456 40669
5582 40 223298 2.5 474509 83737
2 B-B' 1098 100 109800 2.5 233325 41175
3 C-C' 379 100 37900 2.5 80538 14213
4 D-D' 70 100 7000 2.5 14875 2625
5 E-E' 0 100 0 2.5 0 0
6 F-F' 0 100 0 2.5 0 0

1033703 182418

Grand
total 2193095 387017

27
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

DETAILS OF RESOURCES (Inferred Mineral Resource 333)

Table No - 12

UPTO -40
RL Hg Lst.

Section Area Interburden

Sl.No. on (sq.m) Influence Volume TCF Limestone Waste
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 0 50 0 2.5 0 0
2 B-B' 0 100 0 2.5 0 0
3 C-C' 0 100 0 2.5 0 0
4 D-D' 0 100 0 2.5 0 0
5 E-E' 1861 100 186100 2.5 395463 69788
6 F-F' 0 100 0 2.5 0 0

395463 69788

UPTO -40 Magnesian

RL Lst.

Section Area Interburden

Sl.No. on (sq.m) Influence Volume TCF Limestone Waste
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 0 50 0 2.5 0 0
2 B-B' 0 100 0 2.5 0 0
3 C-C' 0 100 0 2.5 0 0
4 D-D' 0 100 0 2.5 0 0
5 E-E' 2162 100 216200 2.5 459425 81075
6 F-F' 1742 100 174200 2.5 370175 66109

829600 147184

Grand
total 1225063 216971

28
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

ECONOMIC AXIS
SL. NO E 1 ( Economic ) Status
1. Detailed exploration. Detailed exploration is carried out. Further it is
pertinent to state that the mine is in operation since
1963 proving its economic viability
2. Mining report / mining plan/ working mines. Mining plan and report is being regularly prepared
and the mine is being worked systematically and
scientifically
3. Specific end – use grades of reserves The limestone produced from this mine is supplied
(Above economic cut – off grade). to India Cements Limited at Sankar Nagar cement
factory which is located at a distance of about 10
kms. Besides, the high magnesia limestone is
utilized for CEM manufacturing and part of it is also
sold.
4. Specific knowledge of forest / non forest The entire lease area is a patta land owned by the
and other land use data. company and falls in non forest area

29
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

FEASIBILITY AXIS
Feasibility assessment studies form an essential part of the process of assessing a
mining project. The typical successive stages of feasibility assessment i.e. geological study (F3)
as initial stage followed by prefeasibility study (F2) and feasibility study (F1) / mining report are
well defined. The degree of economic viability (economic or sub economic) is assessed in the
course of prefeasibility and feasibility studies. A prefeasibility study proves a preliminary
assessment with a lower level of accuracy than that of a feasibility study, by which economic
viability is assessed in detail.

Presently feasibility study (F1) has been carried out as base for feasibility assessment
purpose and the following parameters are taken for assessment.

SL. F 1 (Feasibility study ) Status

NO
1. Geology: Geology of area and project, detailed Geology: Geology of area and project, detailed
exploration, closed spaced drilling; ore body exploration, geotechnical studies have been
modeling, bulk samples for beneficiation, carried out the details of geology is given under
geotechnical and ground water & surface waters chapter 3.0 of Mine plan
studies.
2. Mining: Mining plan, mine recoveries and Mining: Detailed Mine planning, recovery and
efficiencies, equipment selection, manpower selection of equipment are furnished under
requirement. chapter 3.0 (Reserves), Mining Chapter 4.0 etc.
Details of manpower is furnished in Chapter 9.0
under Manpower potential.
3. Environment: EIA studies and EMP including Environment: EIA studies are being carried out
socio – economic impact, rehabilitation of project for mining for obtaining Environmental clearance
affected persons, waste disposal/ reclamation, and the approval for the same is under process.
detailed land use data.
4. Processing: Pilot scale investigation data, list of Processing: No processing is involved except
equipment, manpower and environmental for size reduction by crushing which is carried
consideration like waste disposal of tailing, etc. out inside the cement plant premises. Brief
description of the same is enclosed in the mining
plan under chapter 10.0.
5. Infrastructure and services, construction Infrastructure and services : Infrastructure
activities: Full details services necessary for the operation of the
mining activities is provided and is discussed
under Chapter 9.0 under site services.

30
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

6 Costing : Captial and operating costs-rough Enclosed below as a separate Table No-13 &14
estimates based on comparable mining
operations.
7 Marketing : An overview on marketing aspects, The limestone produced is supplied to India
demand supply relations and industry structure. cement plant and high Magnesia limestone is
utilized for cem making(captive consumption)
and part of it is also sold.
8 Economic viability : Preliminary study of cash Not applicable as the entire limestone mined is
flow forecast. supplied to India cements Plant and high
magnesia limestone is also for captive
consumption and a part of it is sold. Refer Table
No - 15
9 Other factors ; Statutory provisions relating to The applicant shall fulfill all the statutory
labour, land, mining, taxation, etc. compliances under Mines Rules 1955, Mines Act
1952, Metaliferous Mines Regulation 1961,
Mines Vocational Training Rule 1966, Mineral
Concession Rules 1960, MM(RD) Act 1957,
MCDR 1988, Explosives Rule 2008, Indian
Electricity Rules, payment and Minimum wages
Act, TNPCB and MOEF, Forest etc.,

31
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Table No - 13
KRISHNA MINES
23, Sripuram, Tirunelveli - 627 001
Capital Cost:
EQUIPMENT NOS. VALUE
Car-Washing Unit 1 16459
Compressor- With 1 134961
Tractor
Diesel Tanker 1 298535
Dumper-1 1 215557
Dumper-2 1 215557
Generators 1 1329869
Genset-415-Kv 1 388500
Mobile Ligting Towers - 1 1770681
3 No
Poclain--4-(Pc-210) 1 5684500
Poclain--Ck-300 1 1067110
Poclain--90-Ck--(A- 2 2299658
3670)
Pumps 1 375370
Rock Breaker 1 485391
Rocker Breaker-2 1 970931
Weighbridge 1 377739
Welding Machine 1 14809
Wheel Loader--1 1 165461
Wheel Loader--2 1 1430742
Xah-210 Compressor-- 1 1110562
(Six Cylinder)
Tippers 5 6000000
Total 24352392

32
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Table No - 14

Operating Cost:
COST PER MT (Avg) Rs.191
EXPENDITURE 2011-12 Rs. % Rs.
SALARIES 28177509 40% 75.34
STAFF WELFARE 626235 1% 1.67
BONUS 1622456 2% 4.34
ROYALTY & CESS 371693 1% 0.99
PRINTING & STATIONERY 183433 0.26% 0.49
POSTAGE & COURIER 28124 0.040% 0.08
TELEPHONE & FAX 650831 1% 1.74
TAXES & FEES @ 30% of Sales 735940 1% 1.97
CANTEEN EXP 768909 1% 2.06
DRILLING 244769 0% 0.65
ROCK BREAKER MAIN 89767 0% 0.24
MINING EXP 2593293 4% 6.93
BLASTING 1197327 2% 3.20
ELECTRICAL MAINTENANCE 741289 1% 1.98
ELECTRICITY CHARGES 2584753 4% 6.91
CONVEYANCE 9551 0.013% 0.03
STORES & SPARES 2809419 4% 7.51
REPAIRS & MAINTENANCE 375699 1% 1.00
DIESEL & OIL 10243065 14% 27.39
INSURANCE 388712 1% 1.04
SECURITY CHARGES 1419608 2% 3.80
PROFESSIONAL CHARGE 2740892 4% 7.33
OTHERS 10535595 15% 30.17
INSTALMENT 81366 0.11% 0.22
OFFICE MAINTENANCE 70239 0.10% 0.19
PAPER & PERIODICAL 38044 0.05% 0.10
WORK SHOP EXP 1465138 2% 3.92
WEIGH BRIDGE MAINTEN 46233 0.07% 0.12
100%

GRAND TOTAL 70839889 191 191

33
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Table No - 15
KRISHNA MINES
23,Sripuram, Tirunelveli 627 001
FUNDS FLOW STATEMENT 2013-14 2014-15 2015-16 2016-17 2017-18
PROFIT FOR THE YEAR 66270120.00 85937385.00 102360418.00 118215995.00 99768260.00
Less: Advance Income Tax Paid 29611600.00 30780000.00 30700000.00 35000000.00 29930000.00
Total Source 36658520.00 55157385.00 71660418.00 83215995.00 69838260.00

Asset Purchased 16600620.00 18199640.00 17177418.00 20496000.00 17774160.00

Changes in Working Capital 20057900.00 36957745.00 54483000.00 62719995.00 52064100.00

Total Application 36658520.00 55157385.00 71660418.00 83215995.00 69838260.00

Calculation of Changes in Working Capital:
Current Assets
Trade Debtors. 6022000.00 14001000.00 17450000.00 21000000.00 23373000.00
Advances recoverable in cash or kind
or for Value to be received. 318000.00 2224000.00 4346000.00 7363000.00 4292000.00
Trade Deposits, Advances, Royalty Payments, Cess,
and Other Trade Deposits. 10105000.00 18803000.00 26265000.00 19592000.00 14065000.00
Stock in hand 4711000.00 8860000.00 5807000.00 7300000.00 5562000.00
Sister Concern 20000.00 13000.00 22000.00 23000.00 8000.00
Cash on hand. 125000.00 8000.00 12000.00 15000.00 10000.00
Cash at Banks, Post Office SB. Account, CA.A/c
and other deposits 4073000.00 -3268000.00 10514000.00 8496000.00 5574000.00
Input Tax on Capital goods 9000.00 6000.00 10000.00 10000.00 6000.00
25383000.00 40647000.00 64426000.00 63799000.00 52890000.00
LESS: Current Liabilities
Trade creditors 5032000.00 3483855.00 9624800.00 745705.00 393000.00
Outstanding payments 1500.00 0.00 200.00 300.00 700.00
Duties and Taxes 3000.00 2000.00 4000.00 4000.00 5500.00
Provisions 288600.00 203400.00 314000.00 329000.00 426700.00
5325100.00 3689255.00 9943000.00 1079005.00 825900.00
Changes in Working Capital 20057900.00 36957745.00 54483000.00 62719995.00 52064100.00

34
Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

PROVED ORE:
GEOLOGICAL AXIS

SL. G 1 ( Detailed Exploration ) Status

NO
1. Geological survey :
(i) Mapping – for other minerals i) Mapping : Detailed mapping in 1:2000
1:1000. scale is conducted
(ii) Preparation of detailed ii) A detailed topographic cum geological
topographical –cum- geological map map is prepared incorporating all the surface
including all surface geological geological features, Bore holes, a contour
features, extent of deposit, interval of 1m. Based on the bore holes, 6
structure, location of boreholes, geological cross sections were constructed
assay plan and sections of and the reserves were estimated
exploratory mine development and
borehole data;
(iii) Top grid / triangulation stations / iii) Permanent bench marks have been
identified fiducials linking in the established and the co-ordinates of all the
maps. corner points were given
2. Geochemical survey: Detailed sampling of the Bore holes were
Detailed grid pattern sampling and analysis. conducted and the same were analysed. The
analytical data was utilized in the
construction of the sections.
3. Geophysical survey:
Detailed and specific borehole geophysical Detailed exploration was conducted by
survey. drilling of core bore holes, hence geophysical
survey is not necessary.
4. Technological:
(i) Drilling – closer spaced (with i) Drilling: Detailed drilling in the ore zone
definite grid pattern) than that for has been conducted by drilling 17 no of Bore
G2 category; holes with a spacing of about 200 * 100 m
For coal, i) Density of boreholes to (Average).
be 12 to 15 per sq. Km. depending
on the complexities for geo
structural proving.
(ii) Exploratory mining and check ii)Exploratory mining : Further mine is in
drilling results if possible; operation since 1963 and the drill results are
correlatable with the actual mining being
carried out
(iii) Sampling – systematic pit and iii) Systematic sampling of the bore holes
trench sampling, core and sludge have been carried out and the same is
sampling for laboratory scale and utilized for cross section preparation and
bulk sample for the pilot plant scale reserves estimation.
beneficiation studies.

35
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

5 Petrographic and mineragraphic study; No Petrographic studies have been carried

Refining of data on the petrographic character of out. However physical characteristics of
rocks of the deposit and its surroundings, limestone are tested while carrying out the
alterations (if any), including study of grain size exploration activities.
texture gangue and its liberation characteristics
for further refining of data.
6 Geo statistical analysis of borehole data No Geo statistical analysis has been
thickness of ore : Waste encountered in holes, conducted. However thickness of ore is
assay values of samples if considered ascertained based on the drilling data.
necessary.

Refer Annexure – 10 for Feasibility report

36
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

3.5 Grade of limestone and High Magnesium limestone:

Typical analysis of Limestone and Magnesium limestone:
Table No- 7
Cement Grade Limestone Magnesium Limestone
Caco3 - 84.9 Caco3 - 72.8
MgCo3 - 1.8 MgCo3 - 14.2
Sio2 - 9.4 Silica - 11.5
Cao - 48 Cao - 40
Mgo - 1 Mgo - 7.1
R203 - 3.2 R203 - 1.0
Loss on Ignition - 37.6 Loss on ignition - 40.8

The analysis has been carried out in the Lab of India Cements factory at Sankar Nagar.
The lab has latest facilities of analysis like XRD. The analysis results are enclosed on the
letter head of India Cements. More over the limestone, being analysed in the lab of India
Cements, is being consumed in their factory for cement manufacturing. Further results of
samples analysed in NABL accreditated lab are enclosed vide Annexure - 11

Details of the results of NABCB lab is summarized below in Table No- 16

Table No- 16

S. No Samples CaO % MgO % SiO2 %

1 Lime stone 39.36 3.52 21.64
2 Lime stone 45.25 1.60 11.52
3 Lime stone 46.29 2.62 11.14
4 Lime stone 43.07 0.37 16.44
5 Lime stone 45.22 3.81 10.29
6 Lime stone 45.10 3.79 10.42
7 Sub grade 36.41 1.43 26.79

The entire analysis of 7 bore holes drilled recently have been analysed in NABL
Accreditated lab. Refer Annexure - 11 for analysis results from accreditated lab.

37
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER - 4
4.0 MINING:
4.1 Salient description of present mining methods:-
The method of working is opencast mechanized mining considering various technical
parameters like surface topography, continuation of limestone deposit, quality variations,
geo-technical aspects, required rate of production etc. It is proposed to work this deposit by
adopting 10.0 m bench height and width of more than the height of benches i.e. more than
10 m, with an ultimate pit slope of 45°. The benches shall be 10.0 m in height and the ramp
gradient shall be kept minimum of 1 in 16.
The western side area of the lease hold belongs to Nanjinkula (regrouped) limestone
mines of India Cements Ltd. The lessee has a common boundary permission under 111(2)
of MMR – 1961.(Refer Annexure No – 16).
Mining is being carried out by open cast method. Systematic mine development and
winning of limestone is planned up to a depth of 115 m in this mine i.e. up to – 40RL which is
considered as economical mining limit. Based on the disposition and the width of the
limestone body, the ultimate pit limit is arrived accordingly.
The mine is worked along the strike of limestone in the East- West direction. The
mine being worked at present has a dimension of 625 m x 525 m and the present working is
at - 10 R.L
On the hang wall side (Northern side) major development is done on the North
western side along section AA‟, BB‟ and CC‟. The major development is to push the benches
of Charnockite and siliceous limestone to work the bottom benches.
On the footwall side (Southern side) major development is done on the North western
side along section DD‟, EE‟ and FF‟. Here also the major development is to push the
benches of Charnockite and siliceous limestone to work the bottom benches.
The side wall development will be carried out with the help of deep hole drilling,
blasting and excavation by shovels in combination with rear dumpers. During production of
limestone deep hole drilling and blasting will be adopted. Rock breaker will be used for
breaking of oversize boulders. Limestone benches will be slices of 5m and will be merged as
10m as the bench reaches the side wall.
The side wall development will be carried out with the help of shovels, dumpers and
dozer and the height of the benches in development is being maintained as 10m, which
would be the safe working height of shovels deployed. Specific permission from Directorate
of Mines safety has been obtained for adopting a system of deep hole blasting and for
working with the help of heavy machinery for digging, excavation and removal of ore etc.
under regulation 106 (2) (b) of Metalliferrous Mines Regulation 1961.
The lessee has applied for Environmental clearance for a maximum production of
4.55 Lakhs tonnes per annum which is under process.

38
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.2 Year wise development for the ensuing 5 years period:-

 The actual percentage of various productions like limestone, magnesium limestone

and other mineral rejects, are indicated in the table below.
 The siliceous limestone estimated from each section is considered as sub grade
limestone as the CaO content is more than the threshold limit specified by IBM i.e
35 % CaO.
 The dumping area for the sub grade mineral is specified on the southern side of
the lease between co-ordinates N40 to N 145 & E200 to E 615.
 The area for waste dumping is utilized in the North western side of the lease along
with Co-ordinates N 540 to N 690 & E 00 to E 300 is mentioned. The location of
both the waste dump and the sub grade dump is shown on the yearwise
production and development plans (6A to 6E), Environment plan, PMCP and
Environment Management Plan.
 The production mentioned in the renewal application(Form – J) is the existing
production where as the lessee is going for Environmental clearance from MOEF
as per the production figures given in the present mine plan.

Summary of yearwise production and development and details of production and

development are given in Table No – 17 & 18

39
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Summary of yearwise production and development for the next five years. Table No – 17

Percent of Percent of Perecent of

Year Limestone Limestone Magnesian Mag.L.st Total Mineral Mineral Sibeburden Interburden Total Sub grade
reject
production Limestone production Production Reject waste (Sil.Limestone)
(Tonnes) (%) (Tonnes) (%) (Tonnes) (Tonnes) (%) (Tonnes) (Tonnes) (Tonnes) (Tonnes)

2013-14 271262 60.84 174608 39.16 445870 78682 17.64 0 240845 319527 269842

2014-15 297228 65.40 157242 34.60 454470 80201 17.64 93199 111706 285106 163662

2015-16 271530 60.00 181008 40.00 452538 79860 17.64 11513 178874 270247 195763

2016-17 298262 66.13 152738 33.87 451000 79588 17.64 44235 224699 348522 142247

2017-18 257842 56.63 197455 43.37 455297 80347 17.64 69774 212473 362594 155017

TOTAL 1396124 61.80 863051 38.20 2259175 398678 17.64 218721 968597 1585996 926531

40
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Details of production of limestone and magnesian limestone during the plan period :
Table No – 18

Section Production Section Waste Ore : O.B

along Quantity along
S.No Year Production from mnes Development Quantity

(T) (T)

Section Section
1st BB’, CC’ AA’, BB’
East 70 –
1
Year & DD’,
400 / North
445870 & CC’, East 00 – 290 /North 319527 1 : 0.72
(2013- 415 - 575
135 – 345
14)

Section Section East 00 – 290 /North

nd AA’, AA’ BB’, 415 - 575
2
BB’, CC’ East 30 – CC’, DD’ East : 300 – 560 /
Year
2
(2014-
& DD’, 320 / North 454470 & EE’ North : 175 – 220 285106 1 : 0.63
130 – 355 East : 70 – 230 /
15)
North : 70 – 230

3rd Section Section East 00 – 290 /North

East 15 –
Year AA’, AA’ BB’, 415 – 575
3
(2015- BB’, CC’
400 / North 452538 CC’, DD’ East 400 – 500
270247 1 : 0.60
120 – 345
16) & DD’, EE’ & FF’ /North 150 - 220
Section Section East 00 – 290 /North
4th
AA’, East 50 – AA’ BB’, 415 – 575
4
Year
BB’, CC’ 460 / North
451000 CC’, DD’ East 260 – 505
348522 1 : 0.77
(2016-
DD’& 50 – 400 & EE’ /North 105 – 295
17)
EE’
Section Section East 00 – 290 /North
5th
CC’, DD’ East 175 – AA’ BB’, 415 – 575
5
Year
& EE’ 500/ North
455297 CC’, DD’ East 365 – 550
362594 1 : 0.80
(2017-
130 – 330 EE’ & FF /North 110 – 230
18)

2259175 1585996 1 : 0.70

41
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Ist year (2013-14) : During the I year (2013-14) of the mining plan period working will be
carried out along section BB‟,CC‟ & DD‟, between the coordinates East 70 – 400 / North
135 – 345. A production of 445870 T will be carried out. The total handling of waste is
around 319527 T along section AA‟, BB‟ & CC‟ between coordinates East 00 – 290 /North
415 – 575. The ore :O.B is 1 : 0.72.

IInd year (2014-15) : During the II year (2014-15) of the mining plan period working will be
carried out along section AA‟, BB‟, CC‟ & DD‟, between the coordinates East 30 – 320 /
North 130 – 355. A production of 454470 T will be carried out. The total handling of waste
is around 285106 tonnes along section AA‟, BB‟, CC‟, DD‟ &EE‟ between coordinates East
00 – 290 /North 415 – 575, East : 300 – 560 / North : 175 – 220 and East : 70 – 230 / North :
70 – 230. The ore :O.B is 1 : 0.63.

IIIrd year (2015-16) : During the III year (2015-16) of the mining plan period working will be
carried out along section AA‟, BB‟ CC‟ & DD‟, between the coordinates East 15 – 400 /
North 120 – 345. A production of 452538 T will be carried out. The total handling of waste
is around 270247 T along section AA‟, BB‟, CC‟, DD‟, EE‟ & FF‟ between coordinates East
00 – 290 /North 415 – 575 & East 400 – 500 /North 150 – 220. . The ore :O.B is 1 : 0.60.

IVth year (2016-17) : During the IV year (2016-17) of the mining plan period working will be
carried out along section AA‟, BB‟, CC‟ DD‟& EE‟, between the coordinates East 50 – 460 /
North 50 – 400. A production of 451000 T will be carried out. The total handling of waste is
around 348522 along section AA‟, BB‟, CC‟, DD‟ &EE‟ between coordinates East 00 – 290
/North 415 – 575 & East 260 – 505 /North 105 – 295. . The ore :O.B is 1 : 0.77.

Vth year (2017-18) : During the IV year (2017-18) of the mining plan period working will be
carried out along section CC‟, DD‟ & EE‟, between the coordinates East 175 – 500/ North
130 – 330. A production of 455297 T will be carried out. The total handling of waste is
around 362594 T along section AA‟, BB‟, CC‟, DD‟, EE‟ & FF‟ between coordinates East 00
– 290 /North 415 – 575 & East 365 – 550 /North 110 – 230. The ore :O.B is 1 : 0.80

Refer Plate No – 6A to 6E for yearwise production and development plan and Plate No – 7
for Yearwise sections

42
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.3 Year wise production of limestone during the mining plan period:-
Details of Location, bench parameters, R.L and yearwise quantities Table No - 19

Year Section RL Production(T) Total Total Ratio No. of Ore benches Height of Bench
Produ waste T:T
(In m) LST Mg.
ction Tonne
LST (T) (T)
Section BB’, Along BB’ – Bench Height- 10
CC’ & DD’, BB‟ - 30 RL to 5 benches in Magnesian m & width– 14 m
--(-10R.L) Limestone
2013-14 CC‟ - 30 RL to 1 : 0.72 Along CC’ –
0R.L 4 benches in Limestone
271262 174608 445870 319527

Section AA’, Along AA’ – Bench Height- 10

BB’, CC’ & 2 benches in Magnesian m & width– 14 m
DD’, AA‟ – 10 RL to
Limestone
(-10 RL)
Along BB’ –
BB‟ - 30 RL to
5 benches in Magnesian
(-20R.L)
Limestone
2014-15 CC‟ - 30 RL to 1 : 0.63
1 Bench in limestone
0R.L
Along CC’ –
DD‟ – 40 to 30
3 benches in Limestone
RL
Along DD’ –
297228 157242 454470 285106 2 benches in Limestone

43
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Year Section RL Production(T) Total Total Ratio No. of O.B & Ore benches Height of Bench
Production waste T:T
(In m) LST Mg. LST
(T) Tonne (T)
Section Along AA’ Bench Height- 10
AA’, BB’, 3 benches in Magnesian m & width– 14 m
CC’ & DD’, AA‟ – 40 RL
Limestone
to (-10 RL)
2 benches in Limestone
BB‟ - 30 RL
Along BB’
to (-
5 benches in Magnesian
2015- 20R.L)
1 : 0.60 Limestone
16 CC‟ - 30 RL
Along CC’ –
to 0R.L
2 benches in Limestone
DD‟ – 58.5
1 bench in Magnesian
RL to 30 RL
Limestone
271530 181008 452538 270247 Along DD’ –
3 bench in Limestone
Section Along AA’ Bench Height- 10
AA’, BB’, 1 bench in Limestone m & width– 14 m
CC’ DD’&
EE’ AA‟ – 00 RL Along BB’
to (-10 RL) 2 benches in Limestone
BB‟ - 00 RL Along CC’ –
to (- 2 benches in Magnesian
20R.L) Limestone
2016- CC‟ - 30 RL 1 bench in limestone
1 : 0.77
17 to 0R.L Along DD’ –
DD‟ – 30 RL 1 bench in Magnesian
to 20 RL Limestone
EE‟ – 30 RL Along EE’ –
to 20 RL 1 bench in Magnesian
Limestone
298262 152738 451000 348522

44
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Year Section RL Production(T) Total Total Ratio No. of O.B & Ore benches Height of
LST LST Produ waste T:T Bench
(In m) ction Tonne
(T) (T)
CC‟ –
Along CC’ –
50 to 10 Bench
3 benches in Limestone
2017-
Section RL 362594 2 benches in Magneisan Height- 10
CC’, DD’ DD‟ – 1 : 0.80
18 Limestone m & width–
& EE’ 40 to 20
Along DD’ – 14 m
RL 257842 197455 455297 2 bench in Limestone
EE‟-

45
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Details of yearwise production and development quantities Table No - 20

TOTAL YEARWISE QUANTITY
PROVED RESERVES UPTO -40 RL Hg Lst.
Side Burden Inter Burden Silicious Lst
Section Limestone Mineral Area of Area of
S.No on Area Influence Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
2 3 2
(m ) (m) (m ) (Tonnes) (Tonnes) (m ) (Tonnes) (m2) (Tonnes) (m2) (Tonnes)
1 A-A' 516 50 25782.2 2.5 54787 9668 242 30233 1236 154475 760 95003
2 B-B' 1327 100 132665 2.5 281913 49749 467 116748 1034 258458 965 241245
3 C-C' 2353 100 235294 2.5 500000 88235 18 4465 1196 298904 1244 311004
4 D-D' 1932 100 193239 2.5 410632 72465 105 26354 368 91968 188 46929
5 E-E' 700 100 70019.5 2.5 148791 26257 164 40921 659 164793 929 232350
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0

1396123 246375 218720 968597 926531

PROVED RESERVES UPTO -40 RL Magnesian Lst.

Section Area Mineral

S.No. on (sq.m) Influence Volume TCF Limestone Reject
2 3
(m ) (m) (m ) (Tonnes) (Tonnes)
1 A-A' 491 50 24548.8 2.5 52166 9206
2 B-B' 1482 100 148187 2.5 314897 55570
3 C-C' 616 100 61623.1 2.5 130949 23109
4 D-D' 581 100 58072.7 2.5 123404 21777
5 E-E' 1137 100 113711 2.5 241635 42642
6 F-F' 0 100 0 2.5 0 0
863052 152303
Grand total 2259175 398678

46
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARWISE QUANTITY – 1st YEAR (2013-2014)

PROVED RESERVES UPTO -40 RL Hg Lst. 1ST YEAR

Side Burden Inter Burden Silicious Lst
Section Limestone Mineral Area of Area of
S.No on Area Influence Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
2 3 2 2 2
(m ) (m) (m ) (Tonnes) (Tonnes) (m ) (Tonnes) (m ) (Tonnes) (m ) (Tonnes)
1 A-A' 0 50 0 2.5 0 0 0 0 304 38023 300 37471
2 B-B' 120 100 11987.9 2.5 25474 4495 0 0 346 86524 406 101415
3 C-C' 757 100 75735 2.5 160937 28401 0 0 382 95621 486 121456
4 D-D' 389 100 38930 2.5 82726 14599 0 0 54 13496 29 7250
5 E-E' 10 100 1000 2.5 2125 375 0 0 29 7182 9 2250
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0

271262 47870 0 240845 269842

PROVED RESERVES UPTO -40 RL Magnesian Lst.

Area Mineral
S.No. Section on (sq.m) Influence Volume TCF Limestone Reject
2 3
(m ) (m) (m ) (Tonnes) (Tonnes)
1 A-A' 0 50 0 2.5 0 0
2 B-B' 433 100 43300.2 2.5 92013 16238
3 C-C' 179 100 17913.9 2.5 38067 6718
4 D-D' 119 100 11879.3 2.5 25244 4455
5 E-E' 91 100 9075 2.5 19284 3403
6 F-F' 0 100 0 2.5 0 0
174608 30813
Grand
total 445870 78683

47
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARWISE QUANTITY – 2nd year (2014-2015)

PROVED RESERVES
UPTO -40 RL Hg Lst. 2ND YEAR
Side Burden Inter Burden Silicious Lst
Section Limestone Mineral Area of Area of
S.No on Area Influence Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
2 3 2 2 2
(m ) (m) (m ) (Tonnes) (Tonnes) (m ) (Tonnes) (m ) (Tonnes) (m ) (Tonnes)
1 A-A' 93 50 4673.2 2.5 9931 1752 19 2402 217 27100 161 20080
2 B-B' 788 100 78839.8 2.5 167535 29565 363 90797 173 43282 192 48122
3 C-C' 564 100 56358.7 2.5 119762 21135 0 0 165 41324 218 54554
4 D-D' 0 100 0 2.5 0 0 0 0 0 0 0 0
5 E-E' 0 100 0 2.5 0 0 0 0 0 0 164 40906
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0

297227 52452 93199 111706 163662

PROVED RESERVES UPTO -40 RL Magnesian Lst.

Section Area Mineral
S.No. on (sq.m) Influence Volume TCF Limestone Reject
2 3
(m ) (m) (m ) (Tonnes) (Tonnes)
1 A-A' 278 50 13891.3 2.5 29519 5209
2 B-B' 601 100 60105.1 2.5 127723 22539
3 C-C' 0 100 0 2.5 0 0
4 D-D' 0 100 0 2.5 0 0
5 E-E' 0 100 0 2.5 0 0
6 F-F' 0 100 0 2.5 0 0
157242 27749
Grand
total 454470 80201

48
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARWISE QUANTITY – 3rd year (2015 – 2016)

PROVED RESERVES UPTO -40 RL Hg Lst. 3RD YEAR

Side Burden Inter Burden Silicious Lst
Section Limestone Mineral Area of Area of
S.No on Area Influence Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
3 2 2 2
(m2) (m) (m ) (Tonnes) (Tonnes) (m ) (Tonnes) (m ) (Tonnes) (m ) (Tonnes)
1 A-A' 422 50 21109 2.5 44857 7916 54 6738 240 30001 120 14984
2 B-B' 0 100 0 2.5 0 0 16 4003 172 43010 185 46251
3 C-C' 429 100 42908.7 2.5 91181 16091 0 0 176 43966 210 52493
4 D-D' 638 100 63761.2 2.5 135493 23910 0 0 48 11909 79 19839
5 E-E' 0 100 0 2.5 0 0 3 773 200 49988 249 62196
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0

271530 47917 11513 178874 195763

PROVED
RESERVES UPTO -40 RL Magnesian Lst.
Section Mineral
S.No. on Area (sq.m) Influence Volume TCF Limestone Reject
2 3
(m ) (m) (m ) (Tonnes) (Tonnes)
1 A-A' 213 50 10657.5 2.5 22647 3997
2 B-B' 448 100 44781.4 2.5 95160 16793
3 C-C' 0 100 0 2.5 0 0
4 D-D' 297 100 29741.4 2.5 63200 11153
5 E-E' 0 100 0 2.5 0 0
6 F-F' 0 100 0 2.5 0 0
181008 31943
Grand total 452538 79860

49
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARWISE QUANTITY – 4th year (2016-17)

4TH
PROVED RESERVES UPTO -40 RL Hg Lst. YEAR
Side Burden Inter Burden Silicious Lst
Section Limestone Mineral Area of Area of
S.No on Area Influence Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
(Tonnes
2 3 2 2 2
(m ) (m) (m ) (Tonnes) (Tonnes) (m ) (Tonnes) (m ) (Tonnes) (m ) )
1 A-A' 0 50 0 2.5 0 0 55 6896 240 29999 120 14984
2 B-B' 418 100 41837.1 2.5 88904 15689 44 10986 193 48142 182 45457
3 C-C' 392 100 39153.8 2.5 83202 14683 0 0 222 55413 165 41251
4 D-D' 276 100 27555.9 2.5 58556 10333 105 26354 266 66562 0 0
5 E-E' 318 100 31811.7 2.5 67600 11929 0 0 98 24582 162 40554
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0

298262 52634 44235 224699 142246

PROVED RESERVES UPTO -40 RL Magnesian Lst.

Section Area Mineral
S.No. on (sq.m) Influence Volume TCF Limestone Reject
2 3
(m ) (m) (m ) (Tonnes) (Tonnes)
1 A-A' 0 50 0 2.5 0 0
2 B-B' 0 100 0 2.5 0 0
3 C-C' 96 100 9594.5 2.5 20388 3598
4 D-D' 165 100 16452 2.5 34961 6170
5 E-E' 458 100 45830.3 2.5 97389 17186
6 F-F' 0 100 0 2.5 0 0
152738 26954
Grand
total 451000 79588

50
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARWISE QUANTITY -5th year (2017-18)

PROVED RESERVES UPTO -40 RL Hg Lst. 5TH YEAR
Side Burden Inter Burden Silicious Lst
Section Limestone Mineral Area of Area of
S.No on Area Influence Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
2 3 2 2 2
(m ) (m) (m ) (Tonnes) (Tonnes) (m ) (Tonnes) (m ) (Tonnes) (m ) (Tonnes)
1 A-A' 0 50 0 2.5 0 0 114 14197 235 29353 60 7484
2 B-B' 0 100 0 2.5 0 0 44 10963 150 37500 0 0
3 C-C' 211 100 21137.8 2.5 44918 7927 18 4465 250 62579 165 41250
4 D-D' 630 100 62991.6 2.5 133857 23622 0 0 0 0 79 19839
5 E-E' 372 100 37207.8 2.5 79067 13953 161 40149 332 83041 346 86444
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0

257842 45501 69774 212473 155017

PROVED RESERVES UPTO -40 RL Magnesian Lst.

S.No. Section on Area (sq.m) Influence Volume TCF Limestone Mineral Reject
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 0 50 0 2.5 0 0
2 B-B' 0 100 0 2.5 0 0
3 C-C' 341 100 34114.7 2.5 72494 12793
4 D-D' 0 100 0 2.5 0 0
5 E-E' 588 100 58805.5 2.5 124962 22052
6 F-F' 0 100 0 2.5 0 0
197455 34845
Grand total 455297 80347
TOTAL FOR 5 YEARS= 2259175 398678

51
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.3 Proposed rate of Production when the Mine is fully developed:

Since the area is a working mine for the past several decades initial development is
not necessary. Hence the targeted production of around 4.50 lakh tonnes per annum can be
achieved from the first year of the plan period i.e 2013-14 onwards.
Further the mine will be fully developed in accordance with the developmental
programme depicted above, so as to meet the required production target.

4.4 Mineable Reserves & Anticipated Life of the Mine:

 For the calculation of the mineable reserves, safety distance and bench parameters
are considered.
 A 450 line is drawn on the footwall and the hang wall side and the ultimate pit limit is
established for calculation of the reserves.

The mineable reserves of limestone and magnesian limestone are 10192890 T(10.19 Mil.T).
At the proposed rate of 0.450MTPA of production the life of the mine is expected to be 22.6
say 23 years including the present plan period.

Total mineable reserves - 10.19 Mil.T

Production during the plan perod - 2.26 Mil.T (5 years from 2013-14 to 2017-18)
Balance reserves - 7.93 Mil.T
Conceptual Life of Mine - 7.93/0.45 = 17.62 years
Total Life of mines - 5 + 17.62 =22.6 say 23 years.

4.5 Conceptual Mining Plan

Conceptual Mining plan has been prepared after fully taking into consideration the depth
persistence of limestone deposit, mineability and economics including recovery of limestone
etc which is shown in the conceptual plan and sections (Refer Plate No - 8 & 9). The face
position at the end of the life of the mine, proposed dump sites are also shown in the plan.
Afforestation and land use programme are also furnished according to the guidelines

Mining will be continued for 22.6 or 23 years (including the present plan period) with the
capacity of production shown in the table given below and the dumps will be re-handled and
refilled into the worked out pits. Eventually no dump will exist in the post operational period.

The mine will be refilled along AA‟ to DD‟ between N 75 to N 490 and E 15 to E 435 upto
10 RL. Refilling of mine exhausted area will commence from II Scheme period i.e from
2023-28 onwards. During the current plan period also part of the area is shown temporary

52
 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

refilling due to shortage of waste dump area. After exhaustion of the pit upto -40 RL along
Section AA‟, BB‟ and CC‟ the temporary waste dump storage shown along Section EE‟ and
FF‟ on mineralized area will be rehandled and mining will continue upto 10 RL. The
successive advancement of the pit at the end of conceptual period is depicted in the
conceptual mining plan and conceptual section vide Plate no- 8 & 9.

During the conceptual plan period the production of 7933710 t or 7.93Mil.T will be
carried out for which a development quantity of 6042672T or 6.04 Mil.T respectively will be
achieved. During this period about 1937505 T or 1.93 Mil.T of sub grade will be handled.
Summary of the conceptual quanitities and the detailed working of conceptual quantities are
given below in Table No -21 & 22.

Further exploration program has been proposed during the present plan period to prove the
bottom of the limestone and as well as configuration of ore body.
Summary of Conceptual quantities Table No - 21
Limestone
Year Magnesian Total Mineral Sideburden Interburden Total Sub grade

Limestone Production Reject waste (Sil.Limestone)

(Tonnes)
(Tonnes) (Tonnes) (Tonnes) (Tonnes) (Tonnes) (Tonnes) (Tonnes)
1128401
2018-23 1127146 2255547 398038 782350 393236 1573624 646181
1655175
2023-28 605544 2260719 398950 466004 648222 1513176 486146
1693049
2028-32 563157 2256205 398154 270152 541416 1209722 156684
End of 409260
life 751979 1161239 205851 379300 1160998 1746149 648493
4885884
TOTAL 3047826 7933710 1400993 1897806 2743873 6042672 1937505

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Details of Conceptual Quantities Table No - 22

CONCEPTUAL QUANTITY - 1ST SCHEME PERIOD 2018-23
UPTO -40 RL LIMESTONE.
Side Burden Inter Burden Silicious Lst
Section Influenc Limestone Mineral Area of Area of
Sl.No on Area e Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
(Tonnes
(m2) (m) (m3) (Tonnes) (Tonnes) (m2) (Tonnes) (m2) ) (m2) (Tonnes)
1 A-A' 4300 50 214976 2.5 456824 80616 1378 172210 425 53077 1174 146709
2 B-B' 1975 100 197499 2.5 419684 74062 1354 338500 381 95301 1368 341967
3 C-C' 2371 50 118538 2.5 251893 44452 2173 271640 1959 244859 1260 157505
4 D-D' 0 100 0 2.5 0 0 0 0 0 0 0 0
5 E-E' 0 100 0 2.5 0 0 0 0 0 0 0 0
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0
1128401 199130 782350 393236 646181

UPTO -40 RL Magnesian Lst.

Section Area Influenc Mineral
Sl.No. on (sq.m) e Volume TCF Limestone Reject
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 3459 50 172940 2.5 367498 64853
2 B-B' 2931 100 293095 2.5 622826 109910
3 C-C' 1288 50 64387 2.5 136822 24145
4 D-D' 0 100 0 2.5 0 0
5 E-E' 0 100 0 2.5 0 0
6 F-F' 0 100 0 2.5 0 0
1127146 198908
Grand
total 2255547 398038

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CONCEPTUAL QUANTITY - 2ND SCHEME PERIOD 2023-28

UPTO -40 RL Hg Lst.

Side Burden Inter Burden Silicious Lst
Sl. Section Influenc Limestone Mineral Area of Area of
No on Area e Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
(Tonnes
(m2) (m) (m3) (Tonnes) ) (m2) (Tonnes) (m2) (Tonnes) (m2) (Tonnes)
1 A-A' 3005 50 150263 2.5 319308 56348 80 9984 484 60539 941 117684
2 B-B' 1883 100 188336 2.5 400215 70626 0 0 155 38703 593 148173
3 C-C' 4709 34 160105 2.5 340224 60039 0 0 1320 112235 505 42960
2371 50 118538 2.5 251893 44452 2173 271640 1959 244859 1260 157505
4 D-D' 3233 50 161664 2.5 343536 60624 1475 184380 1535 191887 159 19825
5 E-E' 0 100 0 2.5 0 0 0 0 0 0 0 0
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0
1655175 292090 466004 648222 486146

UPTO -40 RL Magnesian Lst.

Area
Sl. Section (sq.m Influenc Mineral
No. on ) e Volume TCF Limestone Reject
(Tonnes
(m2) (m) (m3) (Tonnes) )
1 A-A' 1633 50 81634 2.5 173472 30613
2 B-B' 552 100 55204 2.5 117309 20702
3 C-C' 912 34 31005 2.5 65885 11627
1288 50 64387 2.5 136822 24145
4 D-D' 1055 50 52733 2.5 112057 19775
5 E-E' 0 100 0 2.5 0 0
6 F-F' 0 100 0 2.5 0 0
605544 106861
Grand
total 2260719 398950

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CONCEPTUAL QUANTITY - 3RD SCHEME PERIOD 2028-33

UPTO -40 RL LIMESTONE
Side Burden Inter Burden Silicious Lst
Sl.N Sectio Influenc Limestone Mineral Area of Area of
o n on Area e Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
(m2) (m) (m3) (Tonnes) (Tonnes) (m2) (Tonnes) (m2) (Tonnes) (m2) (Tonnes)
1 A-A' 0 50 0 2.5 0 0 0 0 0 0 0 0
2 B-B' 0 100 0 2.5 0 0 0 0 0 0 0 0
3 C-C' 4709 66 310792 2.5 660434 116547 0 0 1320 217868 505 83392
4 D-D' 4804 67.5 324272 2.5 689079 121602 508 85777 780 131662 317 53467
3233 50 161664 2.5 343536 60624 1475 184375 1535 191887 159 19825
5 E-E' 0 100 0 2.5 0 0 0 0 0 0 0 0
6 F-F' 0 100 0 2.5 0 0 0 0 0 0 0 0
1693049 298773 270152 541416 156684

UPTO -40 RL Magnesian Lst.

Sl.N Sectio Area Mineral
o. n on (sq.m) Influence Volume TCF Limestone Reject
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 0 50 0 2.5 0 0
2 B-B' 0 100 0 2.5 0 0
3 C-C' 912 66 60186 2.5 127894 22570
4 D-D' 2253 67.5 152096 2.5 323205 57036
1055 50 52733 2.5 112057 19775
5 E-E' 0 100 0 2.5 0 0
6 F-F' 0 100 0 2.5 0 0
563157 99381
Grand
total 2256205 398154

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CONCEPTUAL QUANTITY - END OF LIFE OF THE MINE

UPTO -40 RL LIMESTONE
Side Burden Inter Burden Silicious Lst

Section Limestone Mineral Area of Area of

Sl.No on Area Influence Volume TCF Qty Reject sibeburden Quantity Interburden Quantity Area Quantity
(m2) (m) (m3) (Tonnes) (Tonnes) (m2) (Tonnes) (m2) (Tonnes) (m2) (Tonnes)
1 A-A' 0 50 0 2.5 0 0 0 0 0 0 0 0
2 B-B' 0 100 0 2.5 0 0 0 0 0 0 0 0
3 C-C' 0 100 0 2.5 0 0 0 0 0 0 0 0
4 D-D' 4804 32.5 156131 2.5 331779 58549 508 41300 780 63393 317 25743
5 E-E' 365 100 36462 2.5 77481 13673 1352 338000 1230 307500 881 220250
6 F-F' 0 100 0 2.5 0 0 0 0 3160 790106 1610 402500
409260 72222 379300 1160998 648493

UPTO -40 Magnesian

RL Lst.
Section Area Mineral
Sl.No. on (sq.m) Influence Volume TCF Limestone Reject
(m2) (m) (m3) (Tonnes) (Tonnes)
1 A-A' 0 50 0 2.5 0 0
2 B-B' 0 100 0 2.5 0 0
3 C-C' 0 100 0 2.5 0 0
4 D-D' 2253 32.5 73232 2.5 155617 27462
5 E-E' 747 100 74735 2.5 158812 28026
6 F-F' 2059 100 205906 2.5 437550 78141
751979 133629
Grand total 1161239 205851

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.5.1 Time frame of completion of mineral exploration programme in leasehold areas:

 17 bores holes for a total meterage of 1055.20m have been drilled, the logs of which
are attached vide Annexure – 9
 Out of 17 bore holes 5 were old bore holes drilled during the year 1993. Although no
specific exploration programme by way of core drilling is proposed, 5 holes for a total
meterage of 399.20m have been carried out. Subsequently to prove the reserves as
per UNFC classification further drilling of 7 holes has been carried out in June 2011
for a meterage of 355M
 Besides, 6 DTH holes have been drilled. The mine is in operation from 1963
onwards.

Drilling has already been carried out in the mineralized area at a grid interval of less than
200x200. However, additional exploration by way of drilling 14 bore holes has been
proposed to cover the entire area including non- mineralized area. Further holes has been
proposed in the areas not covered with exploration earlier. Refer Geological Plan(Plate No–
4)
Further it was programmed to drill 14 bore holes during the year 2012-13 (5 holes during
the previous scheme period) and 2013-14 (9 holes during the first year of the present mining
period. However the 5 bore holes planned during the last year of the previous scheme period
could not be completed and the same will be completed along with 9 holes during the
present plan period.
In fact the bore holes are proposed to be completed within the 2 years of the present
scheme period. Hence no further exploration is envisaged during the Conceptual period..
The entire exploration program is given under para 3.3.1

4.5.2 Whether ultimate pit limit has been determined and demarcated on surface and
geological plans:

Ultimate pit limit has been determined based on the mineral economics and quality of
limestone from the bore hole data. The ultimate pit will encompass the entire depth of up to
the bottom most RL of -40 m RL which will be achieved in the limestone deposit. The same
has been marked on the plans.

The average dimension of the pit at the end of life of mine is 630*550 m. The maximum
depth of mining is 120 m and the average depth is 74 m.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.5.3 Whether the site(s) for disposal of waste rock and un saleable ores has/have
been examined for adequacy of land and suitability of long term use in the event of
continuation of mining activity:

Sufficient care was taken while selecting the site for waste dump based on the
economically feasibility and ultimate depth of mining.
During the plan period waste will be dumped on the North western corner of the lease.
This area will not affect future mining.
Waste generation during Conceptual Plan period
Table No - 23
Year Mineral Sideburden Interburden Total
Reject waste
(Tonnes) (Tonnes) (Tonnes) (Tonnes)
2018-23 398038 782350 393236 1573624
2023-28 398950 466004 648222 1513176
2028-32 398154 270152 541416 1209722
End of life 205851 379300 1160998 1746149
TOTAL 1400993 1897806 2743873 6042672

Already about 19.75 Ha of land is utilized for dumping outside the lease area in the lands
belonging to the company. Refer Table No – 24 for details of the existing dumps.During the
plan period an area of about 3.114 Ha will be utilized for dumping the waste. Further 2.425
Ha will be utilized for sub grade dumping.

During the conceptual period temporary dump will be created within the eastern side of the
pit. The temporary dump will be rehandled and dumped in the western side of the lease area
once the mineral is exhausted in this portion. This will be done during the second scheme
period i.e from 2023 onwards. No additional area is required for dumping. Hence the area
selected for dumping is adequate.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Details of the Existing Dump

Table No – 24
S. Location of Details of area Area Height Quantity accumulated
No Dump (In Ha) (in m) (In Mil.t)
1 Southern Outside ML area (Surface 11.00 25 4.125
side right owned by Company )
2 South Outside ML area (Surface 8.75 35 4.593
eastern side right owned by Company )
 Two existing dumps are outside the lease area in the Company‟s own land in which
dumping was carried out previously.
 Now as per the IBM directive it is now proposed to dump waste within the lease.
 Hence only one dump on the north western corner of the lease will be utilized for
dumping.
 The 2 waste dumps on the southern side of the lease will not be utilized for dumping.
 Further since the dump area in the northern side of the lease (3.114 Ha) is not
sufficient for waste disposal on a long term basis i.e beyond the scheme period, it is
proposed to exhaust portion of the pit on the South eastern side of the lease and
utilise the same for temporary dumping.
 Also the waste generated from the next scheme period will be utilized for refilling.

4.5.4 Whether back-filling of pit(s) after recovery of ore/mineral up to techno-

economically feasible depth envisaged. If so, describe the broad features of the
proposal:
Part of the mining lease area after mining up to ultimate depth will be refilled with the waste/
interstitial reject generated during the mining will be fenced and part of the area will be left as
water reservoir. The external dumps will be re-handled and refilled in the worked out pits.

Mining will be continued for another 22.6 or 23 years, including the present plan period at the
rate of proposed production of 0.45MTPA. The reclamation by way of refilling in the mine
exhausted pit will commence from the 2023- 23 i.e. from II scheme period. However due to
shortage of area for dumping part of the waste from the fourth year i.e 2016-17 onwards of
the present plan period will be dumped in the eastern portion of the lease which will be
rehandled from 2023 onwards to refill the exhausted portion on the western side along
section AA‟, BB‟, CC‟ and DD‟.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.5.5 Post mining land use envisaged:

The entire deposit of limestone will be exhausted in about 23 years including the
present plan period at the production rate of 0.45MTPA.
After exhausting the entire limestone deposit the pit will be partially refilled and the
balance unfilled portion will be left as water reservoir.
The mine pit will be properly fenced to avoid un-authorized entry in to the pit. Green belt
will be developed all along the periphery of the mining lease area.
The undisturbed area will be utilized during the present mine plan period itself for various
mining and allied activities. Hence the area under serial No – 15 is given as Zero
Details of the existing, end of plan period and conceptual land use
Table No - 25
Sl No Head Area put on use at End of 5th year At the end of the
start of plan (Ha) (Ha ) life of the mine
(Ha)
1 Area of excavation 20.71 23.310 24.210
2 Storage of top soil Nil Nil Nil
3 Overburden/dump 3.01 3.114 2.214
4 Mineral Storage/Sub grade Nil 2.425 2.425
5 Infrastructure(Workshop/Building) 0.33 0.33 0.33
6 Roads 0.17 0.17 0.17
7 Railways Nil Nil Nil
8 Green belt 1.367 1.429 1.429
9 Tailing pond Nil Nil Nil
10 Effluent treatment plant Nil Nil Nil
11 Mineral Separation plant Nil Nil Nil
12 Town ship area Nil Nil Nil
13 Others (Retaining wall, garland
Nil 0.314 0.314
drain etc)
14 Area utilized 25.587 31.092 31.092
15 Area which will remain
5.505 0 0
(Untouched)
Grand Total 31.092 31.092 31.092

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.6 Mining machinery:

Drilling Machine
Drilling is carried out with DTH drills and compressors both for development and
production. Besides Jack hammer and compressor will be used for secondary blasting and
also sometimes in the production faces. The details of the equipments are given below.
1) Drilling machines:
Type Nos. Dia. Of hole (mm) Size/capacity Make H.P.
XAH-210 02 115 15 kgf Atlas Copco 180

Material required for blasting: Limestone +waste+sub grade

Proposed production per day = 1124784 T (2017-18 of the plan period)

: 1124784/300=3750TPD
Spacing & burden : 4.0 & 3.0 m
Depth of Hole : 10.0
Yield per hole of 10 m : 4.0 * 3.0 * 10.0 *2.5 = 300 T
No. of blast holes drilled : 12.5 say 13/ day
Drilling meterage : 143 m(Including Sub grade drilling)
Average drilling rate : 15 m / hr
No:of shifts :2
Output per machine per shift : 90 m (6 effective working hours)
Output for 2 shifts : 180 m (12 effective working hours)
No. of machines required :1
Considering 80% availability the requirement of drills, one drill is sufficient to cater
the needs of production and development requirements. However one more drill will
be kept as standby in case of breakdown of the drilling machine.

Loading equipment (Production)

Type Nos. Bucket capacity in Cu.M Make
Backhoe (PC- 210) 01 2.0 L& t Komatsu

a) Excavating Parameters
C = Nominal Bucket Capacity = 2.0 m3
F = Bucket fill factor = 0.85
S = Swell factor (at 25% swell) = 0.8
t = Time cycle per pass at 90o swing = 25 sec
e = Overall efficiency for three working shift = 0.80
T = Seconds per hour = 3600
n = Number of working shifts/day = Two
h = Hours per shift = 8
W = Working days in a year = 300
A = Availability of machine = 0.80
U = Utilisation Factor = 0.80

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

b) Rate of Production
3
Output/shovel/hour = (C x F x S x T)/(t) = 2.0x0.85x0.80x3600/25 = 196 m
Output/shovel/year = 196 x h x n x w x e x A x U
= 196 x 8 x 2 x 300 x 0.80 x 0.80 x 0.80
= 481690 say 4.816 lac m3 or 1204224 or 12.06 Lac Tonnes
c) Number of Excavators
Quantity of material to be handled per annum : 455297 TPA During 5th year
( Both Production and development )
No: of Working days : 300 Days
Maximum handling of material required : 455297 Tonnes
Number of excavator (Shovels) required. : 4.55/12.06 = 0.38 say 1 nos
One machine is sufficient to handle production.

(2) Loading equipment (development)

Type Nos. Bucket capacity in Cu.M Make
Excavator (CK - 300) 02 3.0 L&T

b) Excavating Parameters
C = Nominal Bucket Capacity = 3.0 m3
F = Bucket fill factor = 0.85
S = Swell factor (at 25% swell) = 0.8
t = Time cycle per pass at 90o swing = 25 sec
e = Overall efficiency for three working shift = 0.80
T = Seconds per hour = 3600
n = Number of working shifts/day = Two
h = Hours per shift = 8
W = Working days in a year = 300
A = Availability of machine = 0.80
U = Utilisation Factor = 0.80

b) Rate of Production
Output/shovel/hour = (C x F x S x T)/(t) = 3.0x0.85x0.80x3600/25= 294 m3
Output/shovel/year = 294 x h x n x w x e x A x U
= 294 x 8 x 2 x 300 x 0.80 x 0.80 x 0.80
= 722534 say 7.22 lac m3 or 1806336 or 18.06 Lac Tonnes

c) Number of Excavators
Quantity of material to be handled per annum : 669487 TPA During 5th year
( Both Production and development )
No: of Working days : 300 Days
Maximum handling of material required = 669487 Tonnes
Number of excavator (Shovels) required. = 6.69/18.06 = 0.37 say 1 nos

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

One machine is sufficient to handle development. However one machine will be kept
as standby in case of break down. The standby machine will also be used for
handling the production in case of breakdown of production machine.

(3) Haulage and transport equipment

(a) Haulage (development)

Type Nos. Size/capacity Make
Dumper 4 25 T Beml / Terex / HM

a) Hauling units for development :

Quantity handled per annum : 669487
Quantity to be handled – T/day : 669487/300 = 2232 T
No. of shifts per day : Two
Capacity of Tipper : 25
Distance of handling : 2.5 Kms (To and Fro)
Total quantity handled by tipper/hr : 75
Effective working hours in 2 shifts : 12
Total quantity handled by tipper in 2 shifts : 900
No:of tippers required :3
No:of Spare tippers :1
Total no:of tippers :4

(b) Hauling units for production :

Haulage (production)

Type Nos. Size/capacity Make

Tipper 8 20 T Ashok Leyland

Quantity handled per annum : 455297 (5th year of plan period)

Quantity to be handled – T/day : 455297/300 = 2232 T
No. of shifts per day : Two
Capacity of tipper : 20 T
Distance of handling : 20 km for Plant
(to & fro distance)
Total quantity of limestone/marl handled by Tipper/hr: 20 T
Effective working hours for 2 shifts : 12
Total quantity of ore handled by Tipper in 2 shifts : 240 T
No:of Tippers required : 6.32 Say 7
No:of Spare tippers :2
Total no:of Tippers :9

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.6.1 List of Mining Machinery:

The following table shows the list of mining machinery is under use for both leases is
given below in Table No- 26
Table No-26
Sl. Equipment Output per
Capacity Units
No. Drilling - Compressor Hour
2. ATLAS COPCO 150 P.S.I 1
Compressor
3. DTH WAGON DRILL 115mm dia 2 10 Mt/Hr
4. Rock Breaker 2
5. L & T poclain CK - 300 2 294 Cu.m/hr
6. L & T Komatsu PC -210 1 196 Cu.m/hr
7. Dumpers (Terex/HM/BEML) 25 Ts 4
8. Tippers 20 Ts 9 20T/Hr(Prodcution) &
80T/hr(Development)
9. D8 Dozer 220 1
10. Submersible pump 12.5 H.P 1
11. Centrifugal pump 50 H.P 1
12. Jeep 1

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER - 5
5.0 Blasting :
As the mine is mechanized, the handling of ore and overburden is more; a system of
deep hole drilling and blasting is adopted. The bench height is to be maintained maximum
of 10 meters and the pattern of drilling is 4.0 m X 3.0 m spacing and burden with 115 mm
diameter. The pattern maintained is, Staggered, V etc.

Requirement of limestone/development per day = 3750 tonnes

Working hours /day in one shift = 6
No:of shifts = 2
Effective Working hours /day in two shifts = 6
Production of limestone/Development /hour = 3750 / 12 = 312.5 tonnes

5.1. Broad parameters of Blasting :

Average Bench Height = 10m
Diameter of the hole = 115mm
Burden and Spacing = 4m x 3.0m
Sub grade drilling = 10% more than bench height
Hole Depth = 11m (with 10% sub grade drilling)
Bulk Density of insitu limestone = 2.5 tons/m3
Tonnage per blasted hole is given as
Bench. Ht x Burden x Spacing x Bulk Density= 10.0m x 4m x 3.0m x 2.5 = 300 T
No :of Holes per day = 3750/300 = 12.5 holes say 13 holes
Powder factor is considered as = 7.5 tonne/kg
Explosives required per day = 3750 tons / 7.5 = 500 kg/day
Charge in each hole will be 500/13 = 38.46 kg say 38.5 kgs.

In the production and development faces, drilling will be carried out with Wagon drill and
diesel compressor. The diameter of the hole is 115mm and maximum depth will be 11
meters inclusive of 1.0m subgrade drilling with burden and spacing of 4.0 and 3.0 m
respectively.

For heavy blasting, cap sensitive explosives, ANFO, non-cap sensitive column charges,
detonating fuse and delay detonators are used. Normally 20 to 30 holes are blasted at a
time.

5.2 Type of Explosives to be used :

No. 8 ordinary detonators, Electric delay detonators, blue sump fuse, detonating fuse,
slurry explosives, ANFO are generally used in routine blasting operations.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Explosives (Monthly consumption) :

1. Detonating Fuse : 4000 m
2. Large Diameter Explosives : 2500 kgs
3. A.N.F.O : 10000 kgs
4. Delay Detonators : 500 Nos.

5.3 Precautions to be observed during drilling & blasting:

Adequate safety precautions will be taken during drilling and blasting.

 Adequate care will be taken in handling the drilling and compressor equipments.
 While blasting, adequate measures will be taken right from storage of explosives,
transport, charging of holes, blasting and return of explosives.
 The safety distance of 500 m all around the blasting site will be strictly enforced.
 Proper sentries will be posted to clear the men and any living beings in and around
the blasting zone.
 Charging & blasting will be avoided whenever the sky is overcast.
 Suitable blasting shelters have been provided at strategic points for the blasters to
take shelter during blasting.
 These shelters are suitably covered with sand bags on all the sides and other safety
precautions are also being strictly practiced by the blasters during blasting operations

5.4 Storage of Explosives :

The applicant has installed a Magazine at the mine in S.F.No. 719/2. The capacity of this
magazine is 1000kgs.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Chapter – 6

6.0 MINE DRAINAGE

6.1 Depth of water table based on observations from nearby wells and water
bodies

The average rainfall of this area is around 652.4 mm per annum. The water table in the
surrounding areas is in the range of 6.90 m bgl to 10.04 m bgl. Rain water is being
diverted towards the eastern side of the mine to prevent water entering the working areas
of this mine.

Groundwater is the main source of water in the district. Dug wells, dug-cum bore wells and
bore wells are constructed for groundwater use for irrigation. With respect to mining area, 1
bore well exist within the area, drilled upto 36 m deep in the year 2006. The yield of the well
is 8500 lit/hr. water level below ground level during Feb-12 is 7.40 m. The bore well is fitted
with 5 HP pump and operated for 2 to 3 hrs in a day. The domestic water requirement of the
mining project such as drinking, washing and toilet are meet from this bore well. However,
the water requirement of mining operations, spraying of water for dust control, spraying of
water to hauling/transportation of mined materials and green belt development are meet
from the rainwater collected in the mine pit. The following are the break-up of source of
water and usage in the project site.

6.2 Present workings has already touched water table at a depth of 60 m (Post
Monsoon).

(i) Ground water withdrawal from bore well

Use of Groundwater:

 Domestic: 10 m3/day x 300days =3000 m3/yr.

(ii) Collection and Reuse of Mine Pit Water

As already mentioned, the two adjacent leases are worked contiguously and
hence the hydrology of the mine area are studied as a combined one. During the rainy
periods, the rain water is collected in the mine workings and impounded. All though the
average annual rainfall is 652 mm, bulk of precipitation of 391.1mm occurs during the
monsoon season of Oct to December. With an infiltration rate of 0 .80 and run-off co-efficient
of 0.80, the total quantity of rainwater collected in both the mine leases of GO 115 & GO
1081 per annum is computed as below:

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Present area of both the mine pits : 239200 Sqm (51000m2 for GO 115
& 188200 m2 for GO 1081)
Eff. Rainfall : 0.3129 m
Run-off co-eff : 0.80
Rainwater collected : 59876.5 m3/yr
However considering loss due to evaporation and others is 25% from the mine pit water.
Hence, the effective amount of rainwater de-watered from the mine pit is (59876.5
m3/yr x 0.75) = 44907 m³/yr. Say 45,000 m³/year.

This quantity is pumped for utilizing it for various purposes such as green belt development
and settling of dust during the hauling of vehicles and agricultural use. The break up details
are given as below.

Use of Rainwater collected in the Mine Pit:

A) Total Rainwater available in the mine pit = 45,000 m3/yr

B) Water sprinkling - 40 m3/day x 300days =12,000 m3/yr.
C) Green belt development: 10 m3/day x 300 days = 3,000 m3/yr
D) Balance mine sump water
available for agricultural use(A-B-C) = 30,000 m3/yr or say 100m3/day

The following pumps are available at the mines for pumping out of water:
50 HP submersible pumps - 3
Two pumps will be in operation and one pump will be standby.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER – 7

7.0 Indicate briefly the nature and quantity of top soil, overburden / waste and
mineral rejects likely to be generated during the next five years
7.1 Nature of Waste

The waste in the mine is mostly Charnockite and Quartzite, which are dumped separately.
Since it is working mine from1963 there will be no generation of top soil. About 1.585 Mil.T
of waste will be generated during the present plan period. Besides 6042672 T or 6.0426
Mil.T of waste is likely to be generated during the conceptual period.

The chemical characteristics of the waste is as follows in Table No- 27

S.No Nature of waste Chemical composition
1 Charnockite Sio2 – 50.09%
Al2O3 – 2.86%
Fe2O3 - 1.09%
FeO – 14.12
MgO- 10.62
Cao – 19.62
2 Quartzite Sio2 – 85.60%
Al2O3 – 5.20 %
Fe2O3 - 8.20%

The waste generated during the plan period is given below in Table No- 28
Table No - 28
MINERAL TOTAL
YEAR REJECT INTERBURDEN WASTE WASTE
(Tonnes) (Tonnes) (Tonnes) (Tonnes)
2013-14 78682 240845 0 319527
2014-15 80201 111706 93199 285106
2015-16 79860 178874 11513 270247
2016-17 79588 224699 44235 348522
2017-18 80347 212473 69774 362594
398678 968597 218721 1585996

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

7.2 Selection of Dumping :

Taking into consideration the exploration already carried out, the non-mineralized area
has been demarcated. Dumping sites are earmarked on the non-mineralized areas. The
dumps are away from the ultimate pit limit. Part of the dumping will be carried out on the
existing dumps on the Northern western side and part of the dumping will be carried out
on the southern eastern side of the lease area.
In fact the existing dump in the North west side of the lease hold is a very old dump
and has been removed as per DGMS instruction for back pushing the benches on the
Northern western side for working conveniently at the bottom levels. Whatever remaining is
only a small portion of the dump. Hence the question of the dump sliding and going beyond
the boundary does not occur.
The dumps are situated on a flat ground. The dumps will be in 3 stages each of 10 m
height. The angle of repose of the dump will be 28°. The details of the dumps are given
below. The dumping will be carried out in the advancing manner. All the dumps will be re-
handled and refilled in the worked out pit after the mineral is exhausted. Ultimately no
dump will exist.

7.3 The Maximum Height and Spread of Dumps

Details of existing dump
The waste generated during the earlier scheme period was dumped in waste
dumps outside the lease in the Southern side of the lease in the lands belonging to the
Company having a dimension of 350 x 250 x 30m & 550 * 200 * 25. However as per the
recent guidelines of Indian Bureau of Mines outside dumping is not permitted without NOC
from State Government. Hence dumping of waste generated during the Mining plan period
will be carried out within the lease area.
DIMENSIONS OF THE EXISITNG DUMP Table No – 29
S.No Location of Dump Details of area Dimension (L*W *H) in m
1 Southern side Outside ML area (Surface right 550 * 200 * 25
2 South eastern side owned by Company ) 350 * 250 * 35

Details of proposed dump during the Plan period Table No – 30

S. Location of Dump Location of the area Dimension (L*W Stages Angle of
No *H) in m Repose
1 North western side of the N 540 to N 690 310 * 100 * 30 3 28°
lease (Dump-A) E 00 to E 300

 The dumping will be carried out in 3 stages each of 10m height.

 In order to attain early maturity of dump slopes, the retreating method of dumping
is proposed.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

7.4 Stacking of Sub grade Material :

 As per the new threshold values, limestone analyzing upto 35% Cao will be utilized
by blending or stacked as per the market conditions.
 Similarly high magnesia limestone will be utilized for CEM making.
 Also magnesium limestone obtained from the lease is blended with suitable grade
limestone before using in the cement manufacturing as the magnesium limestone
cannot be directly used because of its high magnesium content.
 Besides siliceous limestone will also be generated from the lease which will be
stacked as sub grade.
 The physical analysis of limestone is not carried out. However the chemical analysis
of representative samples of limestone, high magnesia limestone and siliceous
limestone i.e sub grade carried out from a NABL accredited lab is enclosed vide
Annexure - 11 and the same is given below in Table No- 31
ANALYSIS OF SUB GRADE DUMP Table No- 31

S.No Sample Id Description SiO2 % Fe2O3 % Al2O3 % CaO % MgO % LOI

Siliceous
1 D3-A 18.27 0.16 1.02 37.29 6.45 36.31
limestone
Magnesian
2 D4 3.15 0.15 0.51 39.35 12.14 44.13
Limestone

 Refer Table No - 32 below for the quantities of sub grade mineral likely to be
generated during the plan period,
Summary of Sub Grade generated during Plan Period
Table No - 32
Year Sub grade
(Sil.Limestone)
(Tonnes)
2013-14 269842
2014-15 163662
2015-16 195763
2016-17 142247
2017-18 155017
TOTAL 926531
 Already accumulated sub grade limestone which is dumped outside the lease area
for which the surface right are held by the company as given below in Table No - 33.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Details of the Sub grade material available in different stacks, along with dump numbers is
given below. This dump is situated outside the lease area in the patta land for which surface
rights are held by the company.

Sub-grade dump quantity Table No - 33

Sl.NO Dump No. Avg Area Avg Ht Volume Quantity Remarks
(m2) (m) (m3)
1 Sub grade Dump - 1 10056 17 170952 341904 Sub grade Dump
Magnesian Limestone High Magnesian
2 Dump - 1 3741 5 18705 37410 limestone
Low grade Limestone Low grade/Sub
3 Dump - 1 2632.5 4 10530 21060 grade limestone
Magnesian Limestone High Magnesian
4 Dump - 2 1450 4 5800 11600 limestone
5 Sub grade Dump - 2 12670 14 177380 354760 Sub grade Dump

383367 766734
Refer Surface Plan (Plate – 3)

7.5 Selection of site for Stacking Subgrade Ore :

Sub grade will be dumped in the southern side of the lease between coordinates N40 to N
145/ E200 to E 615 having a dimension of 410 * 60 * 20 m. The area selected will be
sufficient to hold sub grade for the plan period.

7.6 Height and spread of Subgrade stocks :

Dimension of proposed sub grade dump Table No- 34
S. Location of Dump Location of the Dimension Stages Angle of
No area (L*W *H) in m Repose
1 South side of the N40 to N 145 410 * 60 * 20 2 28°
lease area (Dump-B) E200 to E 615

7.7 Precautions To Prevent Runoff In Dumps:

The dump yards shall be located on barren non-mineralized area.
 The dump tops are adequately sloped and water diversion channel shall be
provided to prevent erosion & formation of gullies.
 Garland drain along with settling tank is proposed along the toe of the dump
 Earthen banks are provided around the dumps to arrest silt.
 Proper terracing of dump slopes with optimum height shall be made.
 Afforestation on dumps slopes shall be taken up.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER – 8

8.0 USE OF MINERAL

8.1 Changes proposed in the use of mineral, if any, with reasons:

 Limestone quarried from these mines is mainly supplied to India Cements Limited; at
Sankar Nagar factory which is located at a distance of about 10 kms. The average
purity of these supplies will be 80 to 84% CaCo3. Typical analysis of limestone in the
mining lease area is already mentioned in the earlier sections.
 Magnesium limestone obtained from the lease is blended with suitable grade
limestone before using in the cement manufacturing as the magnesium limestone
cannot be directly used because of its high magnesium content.
 Part of high magnesium limestone is also sold. Details of the usage of high
magnesium limestone is given below.
 The total production of High MgO Limestone on average is around 38 % of
the yearly production i.e. (152738 to 197455 TPA).
 The total requirement of high magnesium limestone is as follows.
 Captive consumption for CEM making - 40000 TPA
 High MgO limestone for sale to surrounding industries - 100000
TPA
 For blending with limestone - 55000 TPA
 TOTAL -
195000TPA
8.2 Indicate physical and chemical specifications stipulated by buyers

 The entire limestone produced from the mines will be supplied to India Cements
factory situated at a distance of 10 kms from the mines.
 The specifications for consumption in cement industry is as follows
The NCB has suggested the following broad specifications of the Run – of Mine
cement grade limestone.

Oxide Acceptable range for manufacture of ordinary

Components Portland cement
Cao% 44 – 52
MgO% 1.5 -2.5 (Max)
SiO2 } 12.0-14.0
Al2O3 } To satisfy the LSF and SM of the raw mix
Fe2O3 }
K2O% + Na2O < 0.5 P2O5 % < 0.5
Cl% < 0.05 SO2 < 0.6

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

 The high magnesia limestone used for Cem making will have CaO in the range of 38-
40 %, SiO2 in the range of 8 -10% and MgO in the range of 6 – 10 %.
 The high magnesia limestone used for blending with limestone will be in the range of
40-42 % CaO, SiO2 in the range of 10-12% and MgO in the range of 4-6 %.

8.3 Give details in case blending of different grades of ores is being practised
or is to be practised at the mine to meet specifications stipulated by buyers:

 As mentioned above the high magnesia limestone used for blending with limestone
will be in the range of 40-42 %, SiO2 in the range of 10-12% and MgO in the range of
4-6 %.
 The siliceous limestone produced from the mine will be stacked as sub grade and will
be utilized for blending. However during this five year plan period the sub grade
generated will be stacked in the southern side of the lease area.

Details of Existing waste dumps

Table No – 25
Sl.NO Dump No. Avg Area Avg Ht Remarks
(m2) (m)
1 Waste dump on the Southern side
(waste Dump – 1) 110000 25 Waste Dump
2 Waste dump on the South eastern
side (waste Dump – 2) 87500 35 Waste Dump
Existing Sub-grade dumps
Table No – 35
Sl.NO Dump No. Avg Area Avg Ht Remarks
(m2) (m)
1 Sub grade Dump - 1 10056 17 Sub grade Dump
2 Magnesian Limestone Dump - 1 3741 5 High Magnesian limestone
Low grade Limestone Dump - 1 Low grade/Sub grade
3 2632.5 4 limestone
4 Magnesian Limestone Dump - 2 1450 4 High Magnesian limestone
5 Sub grade Dump - 2 12670 14 Sub grade Dump

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Details of proposed dump during the Plan period Table No – 30

S. Location of Dump Location of the area Dimension
No (L*W *H) in m
1 North western side of N 540 to N 690 310 * 100 * 30
the lease (Dump – A) E 00 to E 300

Details of Proposed Sub grade dump Table No – 34

S.No Location of Location of the area Dimension (L*W

Dump *H) in m
1 South side of N40 to N 145 410 * 60 * 20
the lease area E200 to E 615
(Dump – B)

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER – 9
OTHERS
9.1 Site Services :
 Rest shelter, Cycle shed, Canteen and First Aid Room have been provided at the
mines.
 A qualified doctor is visiting the mine every day.
 An Ambulance van is available all the time.
 Drinking water, rest shelters are provided inside the mines and also at mines office
and rest shed for employees working above ground.
 Latrines have been provided.
 Apart from these, there are also store room which maintains minimum spares
required for day to day operations.
 Besides Weigh bridge is also installed for weighing the limestone being
transported.

9.2 Employment Potential :

As both leases are working simultaneously the following are the employment potential.
Sl. No. Staff/Officers Numbers
1. Mines Manager (I class Manager) - 2
2. Asst. Mines Manager - 2
3. Medical Officer (Part time) - 1
4. Asst Manager/Manager – Mechanical - 2
4. Mining Geologist - 1
5. Mines Foreman - 2
6. Mechanical Foreman - 1
6. Clerk - 3
7. Weigh bridge Attendant - 2
8. Electrical Supervisor - 1
9. Electrician - 1
10. Mining Mate - 5
11. Blasters - 3
___________________________________________________________________
TOTAL - 26
___________________________________________________________________

Skilled Manpower
1. Operators/Drivers - 15
2. Mechanics - 5
3. Drillers - 4
4. Helpers - 8
5. Mazdoors - 7
-------------------
- 39
-------------------

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

ORGANISATION CHART

OWNER

GENERAL MANAGER

Mine Manager Medical Officer Mechanical Manager

Asst Manager – Minesl Asst Manager - Mechanical

Mining Engineer Mining Clerk Electrical

Mechanical
Geologist Supervisor
Supervisor
Mines Foreman

Mining Blaster
Mate

Drillers Operators

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER – 10
10.0 MINERAL PROCESSING

The ROM is transported from mines to crusher situated at the factory site, where
separate feeding and crushing arrangements are available. Thus no beneficiation of the
limestone is involved except sizing of the quality material to meet the parameters specified
for cement manufacture. No chemical beneficiation is proposed /envisaged for the limestone.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

CHAPTER – 11
11.0 Environmental Management Plan :
Base Line Information:
The mining plan pertains to the proposed mechanized method of mining and hence
requires an EIA & EMP as per IBM‟s guidelines to obtain the clearances from MoEF. Krishna
mines has applied for Environmental clearance which is under process.

The existing environmental data for the following environmental components were collected
in the study area:

i. Socio-economic configuration of the area

ii. Micro-meteorological monitoring at one location
iii. Ambient Air Quality study comprising gaseous and particulate matter
in
6 different locations in the core and buffer zone.
iv. Water quality analysis in 7 different locations 6 Groundwater and 1
mine pit water
v. Noise levels monitoring in 7 different locations in the core and buffer
zone.
vi. Soil quality analysis in 4 locations in the core and buffer zone.
vii. Land use pattern and
viii. Flora & Fauna status

The studies and data collection have been carried out systematically and
meticulously as per relevant IS codes, CPCB & MOEF guidelines. The data collected during
Winter Season of 2011- 2012 for the parameters are given in this report.

For the purposes of the study, the area has been divided into two zones, namely,
core and buffer zones. Core zone covers Mining lease area. The buffer zone covers an area
of 10 km radius from the periphery of the ML area.

11.1 Existing Land Use Pattern :

The major activity in the buffer zone of 5 kms radius area from ML is open scrub,
waste land, double crop areas besides some small ponds. Most of the lands are
agricultural lands besides some government lands.

The area applied for renewal of Mining Lease 31.092Ha. The existing land use
pattern of 31.092 Ha. is given below in Table No - 36.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Existing Land Use Table No - 36

Sl No Head Area put on use at start of
plan (Ha)
1 Area of excavation 20.71
2 Storage of top soil Nil
3 Overburden/dump 3.01
4 Mineral Storage/Sub grade Nil
5 Infrastructure(Workshop/Building) 0.33
6 Roads 0.17
7 Railways Nil
8 Green belt 1.367
9 Tailing pond Nil
10 Effluent treatment plant Nil
11 Mineral Separation plant Nil
12 Town ship area Nil
13 Others Nil
14 Area utilized 25.587
15 Area which will remain (Untouched) 5.505
Grand Total 31.092

11.1.2. Water Regime :

The water levels measured are ranging from 3 to 12 m BGL in and around/nearby
the mining area, whereas the mining operation is going upto 90-100 m below ground level.
However, the natural recharge mechanism i.e. recharge to groundwater regime of shallow
aquifers is not affected by the existing mining activities. Also, the deeper aquifers are not
present in the mining area.

The existing depth of the mine is more than 90 m below ground level, the
groundwater recharge taking place in the shallow aquifers (up to 20m) is not getting
drained out into mine. The presence of shallow water level is an indication that ground
water recharge is not affected due to the mining activity indicating heterogeneous nature
of the aquifers present in the area.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

11.1.3 Flora and Fauna :

FLORA :
Floristic composition in core zone:
The core zone area of 31.092 Ha. is mostly of hard and rocky areas with
undulations. Mine pit also extends over major portion of this area. Plantation also is
carried out in this area by the project proponent. The main species found in this area
are as follows.
Acacia nilotica, Prosophis, Azadirachta, Albizzia, Calotrophis, Datura, Cuscutta, Tridax,
Convolualus, Tephrosia, Aerva, Mullgo, Juncus bufonius, Luzula canprestris and the
grasses [ie] Cyperaceae family members like Kyllinga cylindrica, Cloris parpeta species of
Pyereus, species of Carex, Fimbristylis uliginosa, Romerca etc.

Floristic scenario in buffer zone area:

The floristic composition in the buffer zone covering 10 Km. radial area around
periphery of core zone, was studied in detail by dividing the entire zone into five
transect. Detailed study of various species occurring in each transect was
undertaken.
Totally, about 135 species were recorded at the study area. Among the species identified,
Acacia nilotica, Azadirachta indica, Pongamia glabra, Jatropha, Calotrophis, Zizypus,
Celosia cristata, Cassia auriculata, Cleome viscose, Cloris parpetta, Ocimum sanctarum,
Sida cordifolia, Aerva lanata, Cleome viscosa, Amaranthus viridis, Leucas aspera,
Theprosia purpuria, Croton spaciflorus, Tridax procumbens, Citrulus colothinthis, Aristida,
Carex sps., Pycreus unioloides, etc., were dominant with respect to others.

FAUNA: There is no Wild Life Sanctuary or National Park or Biosphere within the study area
of 10 km. Also, there is no migratory path of avian fauna exist in the study area. Other than
the domesticated animals, jackal (Canis auries), field mouse (Rattus norvegicus), house rat
(Rattus rattus), bat (Rhinolopus sp. & Hipposiderus sp.), etc. no wild animals are found in the
study area. Amphibians like frogs were mainly in fresh water places. Reptilian fauna is
comparatively rich and is mainly restricted to the patches with dense vegetation. Pea fowl is
commonly seen in the area.
Birds play an important role in understanding the ecological balance and its
interrelationships. The occurrence of birds in various locations largely depends on the site
characteristics and their presence in different study sites reveals that there is a good
relationship between the birds and other organisms and the environment. The maintenance
of the eco-balance could be seen in the selected study areas.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Peafowl is commonly found in the area. This species come under Schedule –I
of Indian Wild Life Production Act 1972. However, least disturbance and impact on
its existence is ensured, as the mining operations are conducted at deeper level and
the blasting noise, etc., will be at minimal quantum. Besides, all environmental
production measures for mining impacts are properly implemented. There will be only
insignificant impact on the movement factors of Peafowl species.
The mining personal and others in the area are also properly cautioned to
cause least disturbance to this species and its existence and movements.
Deer which come under Schdule – III of above Wild Life Production Act 1972,
types of Snakes, Porcupine, Mangoose, Anteater, Rabbit etc., are sometimes found in
small numbers in Thaliyuthu Thorny Open Scrub Forest. This forest is hardly forming
1.76% of buffer zone area far away from the mine and as such the impact on these
species will be quite insignificant due to project operations.

VERTEBRATES: The insects in the study area are interrelated with each other and other
organisms. They are in perfect balance in their existence. Some of them act as pests, while
others are useful and beneficial to the environment and human beings.
PISCES: The lentic and lotic systems represent common fishes which supports the local
people during the seasons.
AMPHIBIANS: The toads and frogs were the amphibians recorded in the study area. Many
of them were seen along the Lentic water system and other areas.
REPTILES: The reptiles recorded in the study area include lizards and snakes.
BIRDS: Birds play an important role in understanding the ecological balance and its
interrelationships. The occurrence of birds in various locations largely depends on the site
characteristics and their presence in different study sites reveals that there is a good
relationship between the birds and other organisms and the environment. The maintenance
of the eco-balance could be seen in the selected study areas.
MAMMALS: The distribution of mammals is largely dependent upon the environment of the
respective areas. The mammals present in the study area include Mongoose, Indian palm
Squirrel, etc. These mammals are spread over the study area.

11.1.4 Quality Of Air, Ambient Noise Level and Water :

To establish the ambient air quality, air quality was studied during different periods.
Ambient air quality sampling was carried out, with the help of high volume air samplers
and repairable dust samplers. Air monitoring stations have been fixed covering the 6
locations. Refer Key plan (Plate No -1) and Environmental Plan for locations (Plate No -
10 )

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

The 6 stations are fixed at Front side of Mines Office, Nanjankulam village, Vengala Pottal
Village, Sethurayanputhur Village, Police Colony and Veppankulam village.

PM10 values were in the range of 38.1-92.4 µg/m3. PM2.5 values were in the range of 18.5 to
49.9 µg/m3. SO2 levels were ranging from 4.2 to7.4 µg/m3. NOx levels were ranging from 8
to 23.7µg/m3. While comparing with the NAAQ Norms, all monitored PM10, PM2.5, SO2, NOx,
and values were found to be well within the respective limit values. The CO values in the all
locations found to be below detectable limit. Results are given in Annexure - 12.

b) Noise Levels: Noise levels have been monitored during the study period at seven
locations. The day Equivalent Noise (Leq-d) level were ranging from 41.2 to 51.9 dB(A) and
Night Equivalent Noise (Leq-n) level were ranging from 37.8 to 42.8 dB(A). While comparing
with the MOEF Norm of 55 dB(A) for day time and 45 dB(A) for night time, the monitored
ambient noise levels were well within the limit values for Residential areas. Results are given
in Annexure – 13.

c) Water Quality: Seven samples comprising 1 mine pit discharge water and Ground water
(6 locations) were collected. The pH value of Mine Pit water was 8.43.TDS and Chloride
values were found to be 280 mg/l and 12.3 mg/l respectively. Most of the trace metals were
found to be below detectable limits. BOD and COD values were found to be below their
detectable limits respectively. The mine pit water quality was found to be within the
prescribed CPCB/TNPCB norms for discharge to on land for irrigation.

The ground waters in the bore wells and wells, mostly influenced by nearby ponds or
lakes, were found to be good. pH values were ranging in between 7.52 – 7.82. TDS values
were in the range of 120 - 1860 mg/l. Chloride values were ranging from 9.5 mg/l to 429.4
mg/l. Iron content was found to be in the range 0.01 – 0.2 mg/l. Trace metals were found to
be below their detectable limits. The water quality of ground waters were found to be within
the prescribed IS: 10500 Norms for Drinking in the absence of an alternative source. Water
quality data is given vide Annexure – 14

11.1.5 Climatic Conditions:

The average maximum and minimum temperatures attained in the area will be 35.5 °
to 22.1° C while the relative humidity varied between 31-93%. The wind speed during the
study period ranged from <1.8 to 12.6 Km/hr. The predominant wind direction is from
NNE/NE.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

11.1.6 Human Settlement:

Within the core zone there are no settlements and dwellings, hence disturbance to
the dwellings shall not arise due to the mining operations.

Krishna mines is situated in Tirunelveli taluk of Tirunelveli district. Based on 2001

census data, in the 10km radius there are 31 rural villages and 3 urban areas namely Sankar
Nagar (Town Panchayat), Naranammalpuram (Town Panchayat) and Tirunelveli
Municipality. The total population of these 34 villages is 483567 in which the male population
is 238603(49.34%) and the female population is 244964(50.66%). This shows that the male
and female population ratio is almost equal.

11.1.7 Public Buildings, Places, of interest and Monuments :

There are no Public buildings, Places of worships & monuments within the core
zone or within the vicinity of the mining lease area.

11.1.8 Location of Sampling Stations:

All the monitoring stations are shown in the key plan and environmental management
plan enclosed.

11.2. Environment Impact Assessment :

11.2.1 Land use pattern:
The land use pattern of the study area falling within 10 km radius around the
proposed project area is presented below in Table No- 37.
Land use pattern of the study area falling within 10 km radius
Table No- 37
S. Study Geographical Forest Land Under Cultivation Culturable Area not
No. Area Area (ha) (ha) Irrigated Unirrigated Waste available for
Area (ha) Area (ha) (ha) Cultivation (ha)

1 0– 3 km 3091.06 8.13 99.59 25.57 2546.93 410.84

0.26% 3.22% 0.83% 82.40% 13.29%
2 3 – 7 km 11124.91 585.11 576.70 1405.19 5195.82 3362.09
5.26% 5.18% 12.63% 46.70% 30.22%
3 7-10 km 10468.85 0.0 1355.79 845.34 6381.83 1885.89
0.0% 12.95% 8.07% 60.96% 18.01%
4 0-10 km 24684.82 593.24 2032.08 2276.10 14124.58 5658.82
2.40% 8.23% 9.22% 57.22% 22.92%

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Forest Land: A total of about 593.24 ha of land in 10 km radius is under forest land use.
This accounts to about 2.40% of the total geographical area.
Land under Cultivation: Altogether about 4308.18 ha of land (irrigated and un-irrigated) is
put to agriculture and this works out to about 17.45% of the land in 10 km radius of the study
area. The land, which is irrigated by source, works out to about 8.23% of total geographical
land.
Cultivable Waste Land: This land includes the land, which was cultivated sometime back
and left vacant during the past 5 years in succession. Such lands may either be fallow or
covered with shrubs, which are not put to any use and all grazing lands and village common
lands are also included in this category. The study area comprises of about 14124.58 ha
(57.22%) of cultivable wasteland.
Land not Available for Cultivation: All the land not included in the above categories of
land uses are considered in the category of land not available for cultivation. This category of
land use mainly consists of the hilly and barren lands, human settlements, roads, water-
bodies, etc. About 5658.82 ha area working out to about 22.92% of the total study area falls
in this category.

11.2.2 Air Quality

In any mechanized mining operations , using the down the hole drilling , heavy earth
moving machineries like excavators & tippers , some quantity of dust is bound to be
generated depending on the topography , nature of the material handled and climatology
parameters like wind speed , wind direction and stability classification of the area viz.
location of the buffer zone villages. The deleterious parameters of the air quality to be
considered for open cast mine shall be So2, & NOx. From the base line data generated so
far, it is found that the ambient air quality is within the permissive limits of CPCB. However a
detailed estimation will be made in the EIA & EMP proposed to be submitted after collecting
fresh three season data.

11.2.3 Water Quality:

a) Surface water: The surface water in the area is only rainwater passing through dry
seasonal nallah. Since limestone is an inert material, there shall be no change in quality of
water. But there may be slight increase in the turbidity of water.
b) Ground water: As far as ground water is concerned, it shall not be affected, as the
permeability in the rock formations is very poor. The region is predominantly rocky with
scanty vegetation and soil cover. The climate is semi-arid and these factors coupled with
absence of good aquifers are not conducive to rich ground water resources in the area.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

11.2.3.1 Measures for minimizing Adverse Effects on Water Regime :

The source of water pollution will be from the soil wash off emanating from excavated
quarry benches and mine areas, from external dumps and pumping of water from the mine
sump. To minimize the adverse effects on water regime due to the above activities, the
following control measure will be taken.

i) Maintain gradient of 1o or 20 for drainage of water on the bench floors and construction
of water drains using local material to prevent wash off and un-controlled descent of water.
ii) Garland drains will be dug around the quarry to prevent rain water draining in to the
quarry.
iii) The dumps will be provided with inner slope on top surface and through a system of
drains will be allowed to descend in to surrounding drains so as to minimize the erosional
effects arising out of uncontrolled descent of water.
Mine sump water will be pumped by suitable pumps mounted at the top of mine sump, 4”
delivery G.l. pipes are used to deliver the water up to the plantation point for afforestation
work. Hence there will not be any water let outside the premises and the entire pumped
water will be used for plantation.

11.2.4 Noise Level:

The noise level of the core & buffer zone have been reported in the base line data
which shows that the noise levels are well within the limits as they represent only village
activities. All the villages are located more than 500 m from the mining area. The work zone
noise levels are less than 90 dB(A) for the people exposed to various mining operations.
The DGMS Prescribe exposure limit of 90 dB(A) for workmen in a 8-hour working shift.
The ambient noise levels in most of the cases are well within safe limit of 90 dB (A)
prescribed by DGMS for eight hour exposure. However, the following control measures are
taken
 Covering the periphery of the mining area and the working area.
 Development of thick canopy of trees will be carried out as a part of afforestation
which act as noise attenuators.
 Proper maintenance of the noise generating parts of the machines are introduced air
silencers of suitable type which can modulate the noise of the engines of machinery
are in use. They will be maintained effectively.
 Ear muffs will be given to those persons operating or working close to any machine
generating more than 90 dB (A) levels on continuous basis.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

11.2.5 Water Regime:

The topography of the mining area is in general undulating terrain, with the gradual
increase in the gradient from the southern side to the northern side. There is a small hillock
on the northern side. The mining lease area, surrounding the limestone deposit is contoured
and the maximum elevation of the area is 91 m above M.S.L and the minimum elevation is
75 m above M.S.L. There is no natural water course/ nalla/ stream generating or passing
through this mining area.
The limestone deposit in the Mining lease area is situated on the southern slope of
the Thalaiyuthu quartzite hillock which is running in East West direction. The terrain area has
a low relief on the southern side. The area is a rocky terrain with quartzite builders occurring
all around and scattered. The area experiences very scanty rain even during monsoon
period.
In the buffer zone river Tambaraparani drains for most part of the district, which is
perennial in nature. The district has 7 reservoirs 197 canals and 2200 tanks, which serve as
surface water irrigation sources. The river Tambarabarani is flowing 8 km SE of the mining
lease area. There is no Tambaraparani river canal distribution system present within the
mining area. The adjacent lands on southern side are dry lands due to meagre rainfall in this
area. The area is neither a catchment area nor watershed or does it have any river/nalla
emanating from here.
11.2.6 Socio Economics
 Krishna mines is situated in Tirunelveli taluk of Tirunelveli district.
 Based on 2001 census data, in the 10km radius there are 31 rural villages and 3
urban areas namely Sankar Nagar (Town Panchayat), Naranammalpuram (Town
Panchayat) and Tirunelveli Municipality.
 The total population of these 34 villages is 483567 in which the male population is
238603(49.34%) and the female population is 244964(50.66%).
 This shows that the male and female population ratio is almost equal.
 Most of the workers are from the nearby villages.
 The mine has provided direct and indirect employment to the surrounding villagers.
 Due to more than five decades of mining operation, the socio-economic life of the
nearby village have been improved with respect to better education, literacy and
continuous employment. Some people are engaged in seasonal agricultural
activities and thus are not employed fully.

11.2.7 Historical Monuments

There shall not be any impact on any historical monuments as none of them are
located within 5 kms radius.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

11.3 Environmental Management Plan

11.3.1 Temporary Storage and Utilization of Top Soil:
Since the mine is one of the oldest mine and already opened and limestone exposed,
there will not be any generation of topsoil further more. Whatever quantity generated will
be used for stabilizing the dumps and for planting trees.

11.3.2 Year-wise Proposal for Reclamation:

Since the limestone beds are steeply dipping and likely to continue more than 120 m deep,
concurrent reclamation is not feasible. However part of the pit along section FF‟ between
coordinates N 165 to N 300/E540 to E 640 is used for temporary filling of waste inside the pit
during the IV (2016-17)and V year(2017-18) of the plan period as there is not sufficient
space within the lease for dumping of waste. This will be re-handled during the next scheme
period for carrying out mining operations in that region

At the end of mining operations, the worked out pits can be partly refilled (Upto RL -10) and
used as a storage place for water. The villagers could use this water for agricultural and
drinking water purposes. Besides the pumped out water is being used for their own farm
land. The water body also helps in improving the water table in the open wells in the
adjoining areas.

11.3.3 Afforestation Programme:

As per the afforestation programme given in the earlier mining scheme period, it was
proposed to cover an area of 1.953 ha.for affoestation. The company has planted about
2625 saplings with a survival rate of 50 % over an area of 1.20 ha including gap filling
plantation. The afforestation is carried out near the office building which is situated in the
Southern Boundary, part of the dump area on the North western side of the lease.
Juliflora, Neem, Teak, Jatropha saplings were mainly planted.
Table No - 6
Afforestatio Extent of Location Actual Remarks
Year Area in n Planned Actual plantatio
Ha. as per plantation n
approval (In Ha)
2008-09 Nil Nil 0.15 On the southern 350
2009-10 Nil Nil 0.35 side of the lease 750
2010-11 Nil Nil 0.35 and on the Dump 650
2011-12 0.20 500 0.20 in the 500
Northwestern side
2012-13 0.20 500 0.15 375

TOTAL Nil Nil 1.20 2625

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

It has been proposed to plant about 4750 nos of saplings during the plan period (5
years). These saplings will also be planted along the North western periphery , South
western periphery, eastern periphery and on the dump yards on the North western
periphery of the lease area. The saplings recommended area Jatropha, Juliflora, Neem,
Pongamia, Teak and also fruit bearing trees etc. Expenditure of Rs. 0.65 Lakhs/Ha is
proposed towards afforestation. Details of the afforestation proposed is given in Table No
- 38
Details of the proposed afforestation Table No - 38
Area Location Green belt / Species
Year in Ha. afforestation Planned
2013-14 0.21 Along the North western periphery of 525
ML area
2014-15 0.20 Along the South western periphery of 500 Jatropha,
ML area Juliflora,
2015-16 0.30 On the North western dump yard 750 Neem,
2016-17 0.90 On the North western dump yard 2250 Pongamia,
2017-18 0.29 Along the eastern periphery of ML area 725 Teak
Total 1.90 4750
Note : Green belt will be carried out over an area of 0.7 Ha on the mine peripheries and 1.20
ha of afforestation will be carried out on the dump yard.

11.3.4 Stabilization of the Dumps:

The overburden is dumped in the plan period in the area allotted for the dump yard. The
dump will have a height of 30 m and shall be sloped in 1 in 2. Below the foot of the slopes, a
retaining wall of 1.2 m x 1.2 m shall be constructed using waste boulders with a view to
contain the loose soil dump. The dump shall be suitably stabilized using hamata grass
species and legumes. The slopes shall have contour trenches of 1 m interval where agaves
species shall be planted to consolidate the dump. On the dump terraces plantation activity
will be carried out.

11.3.5 Measure to Control Erosion/Sedimentation of Water Courses:

The existing watercourses shall not be disturbed and any rainwater falling will be allowed to
continue in the same direction and join the natural course. Sufficient check dams shall be
constructed in the drainage nallah.

11.3.6 Treatment and Disposal of Water from Mine:

 A sump is created at the lower most level below - 40 RL.
 Any excess rainwater shall be pumped out of the pit with two to three 12.5 HP
submersible pumps.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

 This water is collected in a water tank and from here it is again pumped out with
the help of 50 HP centrifugal pumps.
 This water is being used by the applicant to develop his agricultural farm which is
situated 3 kms south of the mining lease.
 Besides water will be used by for dust suppression and afforestation.

11.3.7 Measures for Minimizing Adverse Effects on Water Regime:

Very little coursing of the dry nallah is programmed. The water collected in the sump will be
utilised for dust suppression and for afforestation. The excess water being pumped out will
be utilized for agriculture farm situated at a distance of 3 kms.

11.3.8 Protective Measure for Ground Vibrations/ Air Blast Caused by Blasting:
The ground vibration due to blasting was studied by D.G.M.S. at different locations and it
was well within the limit. Besides the lessee has also carried out blasting vibration studies.

Ground vibration study including air over pressure effects have been
conducted by National Institute of Rock Mechanics for Krishna mines. The study results
are given below .

11.3.8.1 Field Procedure For Vibrational Study:

The monitoring stations for ground vibration and air overpressure were decided
based on the structures present around the mines. Two villages are located around the mine
lease area.Sethurayan pudur village is located at a distance of 2.5km South and
Nanjankulam is located at about 1,8 km North from the mine. Besides, mines office, canteen,
work shop etc., of the lease is located within a distance of 500m from the active working
area.. Photo below shows monitoring of ground vibration and air pressure near
Nachankulam village and before Sethurayanputhur village.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

11.3.8.2 Study Details Of Blasts :

During the field investigation, blast vibration and air overpressure were monitored for
eight blasts. The holes were of 115mm in diameter and drilled with crawler mounted drilling
machines. The burden and spacing was 3.5m X 3.5m. The number of holes in a blast varied
from 10 to 62. The depth of the holes varied from 4.0m to 11.0m and the explosive used was
Kelvex 800, Kelvex 500 (83mm dia, 2.78Kg, 40cm long) and ANFO. Drill cuttings were used
for stemming the holes. The stemming length varied from 2.0m to 3.0m for different hole
depths. The charge per hole varied from 13.6Kg to 67.24Kg depending on the depth of the
hole. The maximum charge per delay varied between 132kg to 644 kg and the total charge
in around varied between 645kg to 4051kg. All the blasts were initiated with D – cord down
the line and short delay electric detonators. The details of the blasts monitored is given
below. Presently the mine working is carried out in south benches and as the Nanjankulam
village is located in North, for experimental purpose few blasts were taken in northern
benches of the mine.

Details of the blast monitored Table No -39

Bl.N Date Blast Location N D,m B,m S,m CPH, St,m TC, Kg Bl Qty,
O Kg Cum
1 24.11.2010 4th Bench South E300, N200 30 11 3.5 3.50 67.24 3.0 2017.0 4043
2 24.11.2010 1th Bench South E200, N100 32 10 3.5 3.50 56.68 3.0 1813.8 3920
3 25.11.2010 8th Bench SW E250, N350 62 4 3 3.50 13.6 2.0 809.0 2232
4 25.11.2010 3th Bench SW, E450, N300 14 7 3.5 3.50 33.12 3.0 463.0 1201
5 26.11.2010 6th Bench South 10 10 3.5 3.50 51.68 3.0 516.8 1225
6 27.11.2010 4th Bench SE, N250, E350 27 10 3.5 3.50 52.24 3.0 1410.5 3308
7 27.11.2010 7th Bench NE, N400, E400 24 12 3.5 3.50 64.46 3.0 1547.0 3528
8 29.11.2010 4th Bench South E300, N200 27 11 3.5 3.5 59.24 3.0 1599.5 3638
Note:

N =No of holes, D = Depth of hole, B = Burden, S = Spacing, CPH = Charge per Hole, St == Stemming,
TC = Total Charge, Bl Qty = Blasted Quantity

11.3.8.3 Blast Monitoring

Minimate plus seismographs from Instantel, Canada were used for monitoring for
ground vibration and air overpressure. These instruments are microprocessor-based,
portable units and each unit consists of a standard external transducer for monitoring ground
vibration and a mike for measuring air pressure. Eight seismographs were used in this study.
Radial distances between the blast and the instrument locations were measured using a
binocular type laser based instrument
The details of the monitored ground vibration and air overpressure are given below in
Table No – 40 followed by sample print out.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Details of the ground vibration and air overpressure Table No – 40

PPV AOP
Bl # SENSOR LOCATION D (m) MCD (kg) SRSD CRSD F (hz)
(mm/s) (dB)
1 Towards Sethurayanputhur Village 202 336.2 11.02 29.06 13.7 20 -
Towards Sethurayanputhur Village 251 336.2 13.69 31.10 8.71 31.8 -
Towards Sethurayanputhur Village 300 336.2 16.36 43.15 7.7 19.3 -
Towards Sethurayanputhur Village 350 336.2 19.09 50.34 3.57 15.8 118.8
Towards Sethurayanputhur Village 400 336.2 21.82 57.34 3.18 29.5 118.8
Towards Sethurayanputhur Village 466 336.2 25.41 67.03 3.56 20.5 117.1
Towards Sethurayanputhur Village 515 336.2 28.09 74.08 3.36 20.3 -
Near entrance of Sethurayanputhur 1016 336.2 55.41 146.14 0.54 58.6 105.5
Village
2 Towards Sethurayanputhur Village 155 226.72 10.29 25.42 11.2 31.8 -
Towards Sethurayanputhur Village 205 226.72 13.61 33.63 9.2 32 -
Towards Sethurayanputhur Village 255 226.72 16.94 41.83 5.89 26.9 -
Towards Sethurayanputhur Village 305 226.72 20.26 50.03 5.94 21.8 129
Towards Sethurayanputhur Village 355 226.72 23.58 58.23 3.73 22 127.9
Towards Sethurayanputhur Village 421 226.72 27.96 69.06 3.04 22 126.3
Towards Sethurayanputhur Village 471 226.72 31.28 77.26 3.03 21.8 -
Near entrance of Sethurayanputhur 1221 226.72 81.09 200.28 No - -
Village vibration
3 Near entrance of Sethurayanputhur 1486 208 103.04 250.85 No - -
vibration
Village
Near Magazene 484 208 33.56 81.70 1.16 16.5 -
Towards Nanjankulam Village 734 208 50.89 123.90 No - -
vibration
Towards Nanjankulam Village 794 208 55.05 134.03 - do - - -
Towards Nanjankulam Village 854 208 59.21 144.16 - do - - -
Towards Nanjankulam Village 914 208 63.37 154.29 - do - - -
Towards Nanjankulam Village 974 208 67.53 164.42 - do - - -
Near Nanjankulam Village 1944 208 134.79 328.16 - do - - -
4 Near entrance of Sethurayanputhur 1406 132.40 122.19 275.91 No - -
Village vibration
Near Magazene 241 132.40 20.94 47.29 4.16 36.3 -
Towards Nanjankulam Village 491 132.40 42.67 96.35 0.83 17.3 -
Towards Nanjankulam Village 551 132.40 47.89 108.13 0.93 30.3 -
Towards Nanjankulam Village 611 132.40 53.10 119.90 0.78 17.5 106
Towards Nanjankulam Village 671 132.40 58.31 131.67 0.58 17.8 106
Towards Nanjankulam Village 731 132.40 63.53 143.45 0.75 20.3 -
Near Nanjankulam Village 1701 132.40 147.83 333.79 Not - -
5 ANFO Mixing Shed 359 516.80 15.79 44.74 9.8 22.1 -
Near Mine Office 382 516.80 16.8 47.61 8.26 23.8 -
Near WeightBridge 418 516.80 18.38 52.10 8.24 24.3 -
Near Magazene 210 516.80 9.23 26.17 18.7 17.3 -
Towards NK Village 421 516.80 18.52 52.47 5.36 12.0 118.1

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

PPV AOP
Bl # SENSOR LOCATION D (m) MCD (kg) SRSD CRSD F (hz)
(mm/s) (dB)
Towards NK Village 481 516.80 21.16 59.95 4.27 12.8 118.2
Towards NK Village 541 516.80 23.8 67.43 5.17 12.8 117.5
Near Nanjankulam village 1511 516.80 66.47 44.74 Not - -
6 ANFO Mixing Shed 183 313.44 10.34 44.69 8.2 23.5 -
Near Mine Office 243 313.44 13.73 45.04 7.42 43.3 -
Near WeightBridge 287 313.44 16.21 47.01 3.69 35.8 -
Near Magazene 330 313.44 18.64 16.67 4.23 16.8 -
Towards ICL Mine(East) 324 313.44 18.30 42.15 4.51 28.8 127.4
Towards ICL Mine(East) 364 313.44 20.56 49.09 3.96 16.5 126.8
Towards ICL Mine(East) 404 313.44 22.82 56.04 3.07 17.5 124.8
Near Nanjankulam village 1747 313.44 98.68 168.36 Not - -
7 ANFO Mixing Shed 348 451.22 16.38 45.38 7.81 22.0 -
Near Mine Office 382 451.22 17.98 49.81 4.15 25.0 -
Near WeightBridge 380 451.22 17.89 49.55 4.26 35.0 -
Near Magazene 189 451.22 8.90 24.65 11.3 24.8 -
Towards ICL Mine(East) 440 451.22 20.71 57.38 6 38.0 119.6
Towards ICL Mine(East) 480 451.22 22.60 62.59 4.42 21.8 118.3
Towards ICL Mine(East) 520 451.22 24.48 67.81 4.33 22.8 117.5
Near Nanjankulam village 1582 451.22 74.48 206.30 No - -
vibration
8 Near ANFO Mixing Shed 150 355.44 7.96 21.18 38 41 -
Towards Sethurayanputhur 350 355.44 18.56 49.42 10 39.8 -
Towards Sethurayanputhur 410 355.44 21.75 57.89 4.89 38 -
Towards Sethurayanputhur 460 355.44 24.40 64.95 3.96 24.5 -
Towards Sethurayanputhur 510 355.44 27.05 72.01 2.81 23.8 116.1
Towards Sethurayanputhur 560 355.44 29.70 79.07 2.67 22.5 114.6
Towards Sethurayanputhur 610 355.44 32.36 86.13 2.65 22.3 114.4
Near Natrajan CEM plant 966 355.44 51.24 136.40 3.13 19 102.8
Note: - D: Distance, MCD: maximum charge per delay, SRCD: Square root scaled distance, CRSD:
Cube root scaled distance, PPV: Peak particle velocity, F: Frequency, AOP: Air overpressure, NOT:
Not over instrument threshold of 0.51mm/s

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Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

11.3.9 Measure for Protecting Historical Monuments and for Rehabilitation of the
Habitat:
No historical monuments are located within 5 kms distance and hence need of protecting
does not arise. However, steps to be taken are already mentioned above to reduce the
vibrations due to blasting.

11.3.10 Socio-Economic Benefits Arising from Mining:

The project would help to employ more than 150 people by direct and indirect employment.
The lessee shall extend social benefits like drinking water health care measure, educational
benefits to the neighboring villagers in addition to his own employees.

The State and Central Governments will also get benefited in the form of revenues/ royalties,
excise, taxes and cess etc. Ultimately the limestone mining forms the basic activity for the
cement plant, which will benefit many people directly & indirectly who are depending upon
for their livelihood, for a number of years to come.

11.3.11 Monitoring Schedules for Different Mining Activities:

The lessee as per the DOE guidelines in respect of air, water, noise & vibrations, soil quality
etc shall undertake the monitoring of Environmental parameters. A suitable proposal will be
made in the Comprehensive EIA & EMP report. Already about 8.00 lakhs (Refer Table No -
41) was spent for the monitoring of different environmental issues and the same will be
continued.
Environmental cost for Krishna Mines Table No -41
(Rs. in lakhs)
Sl. Recurring Cost
Activity
No. /Annum
1 Dust suppression 2.00
2 Green belt and afforestation 1.00
3 Monitoring of Environmental quality 2.00
4 Occupational Health & Hygiene 1.00
Total 8.00

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Any Other Information

The production of limestone shall be enhanced if any need of requirement arises. There are
proposals to enhance the rated capacity of the existing cement plant in the near future and
required permissions and modification to the plan will be obtained as per statutory
requirement as and when required.

CSR Activities
Krishna Mines has adopted proper implementation of their corporate social
Responsibility (CSR) programmes as a strategic and prime corporate motto. The company
treats CSR as not only philanthropy, but as an important Corporate Mission and have carried
out socially beneficial developmental activities in all peripheral areas of local community near
to their operating mines. In this project also, which is being operated for past many years,
the project proponent have carried out beneficial social welfare activities to greatly improve
the social and physical infrastructure of the local area. Elaborate details in this respect are
profiled below. Many of the under mentioned welfare measures are also being implemented
presently in a progressive manner from the past. The measures are largely designed on
need based aspirations of local villagers.

Some of the salient CSR activity carried out is listed below

a) Undertaken good social welfare activities in nearby villages of Nanjankulam,

sethurayanpudur, Ramayanpatti and Thalaiyuthu for providing computers,
provision of school uniforms, transport qualities and provision of borewell for the
TDTA middle school at Nanjankulam. The total amount spent is about Rs,74550/-
. The split details in this report is given in below.
SOCIAL ACTIVITIES AT SCHOOLS
TDTA MIDDLE SCHOOL NANJANKULAM
1. Computer with Table : Rs. 16550
2. Bore Hole & Accessories for Drinking Water : Rs. 25500
3. School Uniforms for Children‟s (104 Nos) : Rs. 28000
4. Table & Chair : Rs. 3500
5. Transport : Rs. 1000
______________________________________________________________
TOTAL : Rs. 74550
______________________________________________________________
b) R.C. Primary school at Nanjankulam have been provided with following facilities

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

ITEM COST Rs.

________________________________________________________________
(a) TV/DVD player 8200/-
(b) Book shelves 27500/-
(c) School uniforms for 138 children 36900/-
(d) Table and chairs for children 18000/-
(e) Floor mats 1850/-
(f) Transport 550/-
_______________________________________________________
Total 93000/-
________________________________________________________
c) M/s Krishna Mines have also contributed towards expenses for school functions.
The total amount spent for this is Rs. 23300/-.
From the above description, it can be seen that the project proponent has already
spent Rs. 196720/- for various welfare activities to the local community. In future also, such
welfare measures under CSR activities will be under taken.
A qualified doctor visits the mine every day. His services are also extended to nearby
villages. Besides, an ambulance van is available all the time for use in the mine as well as
for nearby villagers.
Future Proposal:
In future the following social welfare activities will also be undertaken by project
authorities to improve the physical and social infrastructures of the local community.
 Roads in the villages shall be repaired and maintained.
 Educational facilities shall be improved.
 Implementation of effective rainwater harvesting system.
 School books & uniforms for poor people shall be provided. Meritorious poor
children shall be provided scholarships.
 Financial assistance for conducting local sports, religious and cultural
activities.
 Proper drinking water supply shall be provided and regular chlorination of
drinking water shall be done..
 Frequent Medical camps will be conducted for the benefit of villagers.
 Awareness programme for the villagers on sanitation, improvement in health
standards, birth control. Malaria eradication, HIV prevention, etc, shall be
conducted.
Every year from both the mining lease, Rs. 10 lakhs will be spent under CSR. The
breakup of the same will be decided based on the immediate need and priority.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

PROGRESSIVE MINE CLOSURE PLAN SUBMITTED UNDER RULE 23B(3) OF

AMENDED MCDR, 2003 FOR RC.NO8480/MM4/2002 (G.O. M.S. NO. 1081- OLD)

Introduction:

Krishna Mines is situated in Ramayanpatti village in Tirunelveli Taluk and District in

Tamil Nadu. This mine is supplying major portion of limestone to M/S. The India Cements
Limited, at Sankar Nagar for their modernized dry process cement plant.

The mining Lease covered under G.O.M.S. 1081 dated 2-9-1983 was originally granted
vide G.O.M.S. 2557 dated 10-5-1962 for a period of 20 years from the period of Lease deed
execution on 28-1-1963 and the lease expired on 27-1-83. When the application was filed for
first renewal, the renewal was granted only for six years. The applicant appealed through
revision application to the central government requesting the lease period to be extended up
to twenty years. Finally the Government of Tamil Nadu after obtaining the final order from
Central government extended the mining lease period to twenty years from 28-01-1983
which got expired on 27-1-2003.

After that the applicant has also submitted an application for second renewal, dated on
23-1-2002 for which mining plan was prepared and got approved vide No
TN/TNL/MP/CST/1452/2 dated 19-12-02 up to 2007-08. Subsequently the mine plan was
modified to capitalize good market for High magnesium limestone and also for pink
limestone and the modified mine plan was approved vide Lr.No TN/TNL/MP/CST/1610/SZ
dated 12.08.2005.

The existing mining scheme was approved vide letter No TN/TNL/ LST/MS-602-SZ
dated 31.01.12.

Details of the lease

---------------------------------------------------------------------------------------------------------------------------
S.No G.O.Ms.No & Date Extent (Ha.) Villages Period of lease
_________________________________________________________________________________
1) G.O.Ms.No – 1081 31.092 Ramayanpatti 20 years
Dated 02.09.1983

2) Rc.No8480/MM4/2002 31.092 Ramayanpatti 10 years

Valid upto 27.01.2013

 The G.O.Ms.No – 1081 was applied for renewal letter dated 23.01.2002.
 The Second renewal was granted vide letter Rc.No.8480/MM4/2002 dated 11.06.04
with effect from 28.01.2003 to 27.01.2013 valid for 10 years only.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

 The lease deed has been executed.

 Although the lessee wanted renewal for 20 years lease renewal was granted for 10
years only. Copy of Mine lease deed is enclosed Vide Annexure – 1.
 Hence the lessee has applied for renewal of the lease on M2/3239/2012 dated
24.01.2012. Copy of the renewal application and its acknowledgement are enclosed
vide Annexure 2 & 2A.

a) Name of Lessee and Address : KRISHNA MINES

23, Sripuram,
Tamilnadu
State : Tamilnadu
Pincode : 627 001.
Phone : 0462-2333200
Fax : 95462-2339248
The location of mining lease area is shown in Key Plan Plate no.1

1.0 Details of Mining Leases:

The applicant company is having two mining leases from which they are supplying
limestone to M/s The India Cements Limited, Sankarnagar. The details of the Mining lease is
given below.

Details of Mining Lease

---------------------------------------------------------------------------------------------------------------------------
S.No G.O.Ms.No & Date Extent (Ha.) Villages Period of lease
_________________________________________________________________________

1) G.O.Ms.No – 1081 31.092 Ramayanpatti 20 years

Dated 02.09.1983

2) Rc.No8480/MM4/2002 10 years
Valid upto 27.01.2013
---------------------------------------------------------------------------------------------------------------------------
There is one more mining lease under G.O.Ms.NO -48 / 115 over an extent of 12.12 ha.
which is adjacent to the above said one and both the leases are being worked continuously.

Location and extent of mining Lease area:-

Krishna mines are located in Ramayanpatti village of Tirunelveli Taluk, Tirunelveli

District. The distance from the mining lease area to India Cements Plant is about 8 Kms.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Type of lease area:-

The Mining Lease falls in private lands belonging to the lessee. The area is being worked
from a long time and is devoid of any vegetation and full of rock exposures. The area is
being worked out continuously for more than 5 decades.

Method of Mining:-
The method of working is opencast fully mechanized mining using deep hole drilling and
blasting & HEMM equipments considering various technical parameters like surface
topography, continuation of limestone deposit, quality variations, geo-technical aspects,
required rate of production etc. It is proposed to work this deposit by adopting 10.0 m bench
height and width of more than the height of benches i.e. more than 10 m, with an ultimate pit
slope of 45°. The ramp gradient shall be kept minimum of 1 in 16.
Mineral Processing operation:-
The ROM is transported from mines to crusher situated at the factory site, where
separate feeding and crushing arrangements are available. Thus, no beneficiation of the
limestone is involved except sizing of the quality material to meet the parameters specified
for cement manufacture. No chemical beneficiation is proposed /envisaged for the limestone.

1.1 Reasons for mine closure: - (Progressive)

Normally for closure of mining operation the following are the important factors
1. Exhaustion of Mineral
2. Lack of Demand
3. Uneconomic operation
4. Natural calamity
5. Directives from statutory authorities or court.

As per the estimates a reserves/resources of about of 13.61 Mil.T has been established
the details of which is given under Chapter 3.0 para 3.4 of the Mine plan.

The average production is going to be around 0.45 MTPA which means around 2.26Mil.T
during the present plan period. Even during the conceptual period the production is going be
around 0.45 MTPA which means about 2.25Mil.T for five year period.

Mining will be continued up to 22.6 years including the present plan period with the
capacity of production mentioned above. Hence, the closure of the mine will not take place
during the present plan period since the mineral is not exhausted.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

The mine will be refilled along AA‟ to DD‟ between N 75 to N 490 and E 15 to E 435 upto
10 RL. Refilling of mine exhausted area will commence from II Scheme period i.e from
2023-28 onwards. During the current plan period also part of the area is shown temporary
refilling due to shortage of waste dump area. After exhaustion of the pit upto -40 RL along
Section AA‟, BB‟ and CC‟ the temporary waste dump storage shown along Section EE‟ and
FF‟ on mineralized area will be rehandled and mining will continue upto 10 RL. The
successive advancement of the pit at the end of conceptual period is depicted in the
conceptual mining plan and conceptual section vide Plate no. 8 & 9.

Reclamation of the dumps will also be undertaken as a part of reclamation. The above
progressive closure plan is being given based on the proved reserves available.

1.2 Statutory obligation:-

The lease is in operation since 1963. The lessee right now is not bound by any legal
obligations, like special conditions imposed while execution of lease deed, approval of
mining plan, directives from Indian Bureau of Mines, conditions from the Ministry of
Environment and Forests, State of Central Pollution Control Board or by any other
organization.
The applicant will carry out mining operations as per provisions of the Mines Act – 1952,
MMR – 1961, MCR- 1960 and MCDR – 1988 and other rules framed by Central and State
Government as applicable from time to time for an „A‟ category mines.

 The lease is in operation since 1963.

 Systematic and scientific development of mines is being carried out for sustainable
development of mineral deposit,
 Community development is being carried out giving preference to the nearby
villagers namely Ramayanapatti, Sethurayanpudur, Najankulam, Thalayathu for
employment, donation for children education for purchase of books, uniform etc.
Road development work in nearby villages during monsoon season, Drinking water
facilities by drilling bore wells and deepening of water storage ponds, leveling works
at villages with waste material, donation for temple construction and other
development work. Street light fittings for village roads, Donation and material for
orphanage centre, providing free food to school children etc.
 No rehabilitation of affected persons is involved in the project.
 Reclamation of the mined out land by back filling and afforestation is proposed as a
part of restoration of the mined out land which will commence after the mineral is
exhausted.
 Royalty and taxes are being paid to the Government regularly.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

1.3 Progressive Mine closure plan preparation:-

a. Name and address of the applicant:
KRISHNA MINES
23, Sripuram,
Tamilnadu
State : Tamilnadu
Pin code : 627 001.
Phone : 0462-2333200
Fax : 95462-2339248
b. Closure Plan Preparation:
Name and Address of RQP
M.S.Jayaram
New No – 49, Old No – 23
Umapathy Street
West Mambalam
Chennai – 600 033.
Registration No: RQP/MAS/173/2003/A valid upto 09.07.2013
Ph – 044 -24722195, Mob- 9952961106

c. Name of the Executing Agency

Krishna Mines
23, Sripuram,
Tirunelveli.

2.0 Mine Description

2.1. Physiography:
The Mining lease area is almost a flat terrain on the southern side with a gradual raise in
contours on the northern side. There is a small hillock on the northern side. There is no
natural water course passing through this area. However waste rock bund has been formed
on the northern side to prevent rain water flow entering inside the mine pit. There is no forest
land in and around the areas. There is no other important surface feature such as public
monuments, place of interest etc., within 5 km radius of the mining lease area. The mine is
flanked both on eastern side and western side by mines of M/s. The India Cements Limited.
The adjacent land on the southern side is also dry land due to meager rainfall in this area.
The mining lease area, surrounding the limestone deposit is contoured.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

2.1.1. Regional Geology :

The rocks in this region are metamorphosed crystalline limestone and associated gneiss
and quartzite of Archaean age. Due to intense metamorphism these formation are seen as
heterogeneous assemblages of metamorphic facies. The arenaceous facies are represented
by quartzite, argillaceous facies are represented by calcgnesiss and calcareous facies are
represented by magnesium limestone and crystalline limestone.

2.1.2. Local Geology:

The limestone deposit of Krishna Mines belongs to Archaean age and represents the
metamorphosed sediments of Dharwarian period and forms part of the major Ramayanpatti
limestone band, which traverses in the East West direction and for about 3 Kilometers. This
is one of the most important limestone formations of Tamilnadu. Many of the captive mines
of India Cements Limited, South India Mines and Minerals Industries Limited and Krishna
Mine are located in this limestone band. Limestone is seen occurring as a linear body in the
Mining lease area. It is narrower in the eastern side and gets wider on the western side. The
width of the limestone band varies from 40 to 50 m in Western Part where as it is 20 m to 40
m in the eastern part. Limestone band is striking in East- West direction. The dip direction is
towards south. The angle of dip is 800 due south. This limestone is flanked by kankar
followed by quartzite with kankar patches and magnesium limestone. Intermittent
charnockite patches could be observed the contact rocks are also dipping in the same
direction. The limestone occurs as fine grained, medium grained to nearly coarse grained
calicle crystals. The colour also varies from white, yellow honey yellow, blue and pink with
varying gradation in physical and chemical characteristics. The general sequence and rock
formation from foot wall (North) to hanging wall (south) sides are given below.

Quartzite
Kankar
Limestone
Magnesian Limestone
Siliceous Limestone
Charnockite
The quality of limestone is generally good as the chemical analysis of the Limestone is
as follows

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Table No -7
Cement Grade Limestone Magnesium Limestone
Caco3 - 84.9 Caco3 - 72.8
MgCo3 - 1.8 MgCo3 - 14.2
Sio2 - 9.4 Silica - 11.5
Cao - 48 Cao - 40
Mgo - 1 Mgo - 7.1
R203 - 3.2 R203 - 1.0
Loss on Ignition - 37.6 Loss on ignition - 40.8

Reserves:

For the purposes of estimation of reserves, cross sectional method has been followed
(Cross sectional area x Length of influence in metres x tonnage conversion factor). Six
geological cross sections are drawn on the grid lines with equal section interval of 100
metres. Reserves have been calculated upto a depth – 40 RL. Refer Plate- 5 for Geological
Cross section.
For the calculation of the geological reserves a recovery percentage of 85% and the
tonnage conversion factor of 2.5 is assumed. The reserve estimation was done up to – 40
R.L, i.e. up to a depth of 120m.
The lessee has two mining leases, namely G.O.No.1081 and G.O.No.115 which are
being worked simultaneously, for all practical purposes. However the reserves for both the
leases have been estimated separately.
The cement grade limestone has been classified on the basis of CaO and MgO content
of limestone, which could be used in the process of manufacturing cement and for CEM. The
gross reserves for limestone, which are mainly white and pink limestone within mining lease,
was estimated. Besides High Magnesium limestone which has good market in various
industries and can also be blended with high grade limestone and used in cement
manufacture is also considered for reserve estimation.
The Geological & Mineable Reserves as 30.06.2011(As given in previous scheme
of Mining) is 14.93 Mil.T and 14.375 Mil.T.

The reserves estimated above are as on 30.06.2011. The production during the last 2 years
of the scheme period i.e 2011-12 & 2012-13 (upto end of Nov 2012) was reduced from
already estimated reserves to arrive at the residual reserves.

The quantity of limestone produced from the mines during 2011-12 & 2012-13(upto end of
Nov – 2012) is 619192 Tonnes. Hence the residual mineable reserve is 11852539 Tonnes or
11.852 Mil.T.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

However as a cross check the reserves were again estimated based on the cross section
and the residual reserves were arrived. The same has been given in the following paras.

Limestone and High magnesium limestone Table No - 11

Classification Code Quantity Grade
(In tonnes)
1 2 3 4
Total mineral Reserves (A+B)
A. Mineral Reserve +35% CAO
1. Proved Mineral Reserve
a. Limestone 111 6282013
b. High. Mg. Limestone 111 3910877

2. Probable Mineral Reserve

a. Limestone 121 & 122 Nil -
b. High. Mg. Limestone 121 & 122 Nil -
B. Remaining Resource
1. Feasibility Mineral Resource 211 Nil -
2.Prefeasibility Mineral Resource 221 & 222 -
a. Limestone 1159393 -
b. High. Mg. Limestone 1033703 -
3.Measured Mineral Resource 331 Nil -
4.Indicated Mineral Resource 332 Nil -
5.Inferred Mineral Resource 333
a. Limestone 395463
b. High. Mg. Limestone 829600
6.Reconnaissance Mineral Resource 334
13611047

2.3. Mining Method:

2.3.1 Salient Features of Mining:
The method of working is opencast mechanized mining considering various technical
parameters like surface topography, continuation of limestone deposit, quality variations,
geo-technical aspects, required rate of production etc., It is proposed to work this deposit by
adopting 10.0 m bench height and width of more than the height of benches i.e. more than
10 m, with an ultimate pit slope of 45°. The benches shall be 10.0 m in height and the ramp
gradient shall be kept minimum of 1 in 16.

Mining is being carried out by open cast method. Systematic mine development and
winning of limestone mineral is planned taking into consideration the present economic
mineable depth of 120 m in this mine. Based on the disposition and the width of the
limestone body, the ultimate pit limit of is arrived accordingly.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

The side wall development will be carried out with the help of deep hole drilling, blasting
and excavation by shovels in combination with dumpers. During production in limestone
deep hole drilling and blasting will be adopted. Rock breaker will be used for breaking of
oversize boulders. Limestone benches will form slices of 5m and will be merged as 10m as
the bench reaches the side wall.

The side wall development will be carried out with the help of excavators, dumpers and
dozer and the height of the benches in development is being maintained as 10m, which
would be the safe working height of shovels deployed. Specific permission from Directorate
of Mines safety has been obtained for adopting a system of deep hole blasting and for
working with the help of heavy machinery for digging, excavation and removal of ore etc.
under regulation 106 (2) (b) of Metalliferous Mines Regulation 1961.

2.3.2 Extent of Mechanization:

List of Mining Machinery:
The following table shows the list of mining machinery is under use for both leases.
Table No - 27
Sl. Equipment Output per
Capacity Units
No. Drilling - Compressor Hour
1. CPT – 300 -Compressor 100 P.S.I. 1
2. ATLAS COPCO Compressor 150 P.S.I 1
3. DTH WAGON DRILL 115mm dia 2 10 Mt/Hr
4. JACK HAMMER RH 656 32mm dia 8mt/Hr
5. L & T poclain CK - 300 2 294 Cu.m/hr
6. L & T Komatsu PC -210 1 196 Cu.m/hr
7. Dumpers (Terex/HM/BEML) 25 Ts 4
8. Tippers 20 Ts 9 20T/Hr(Prodcution) &
80T/hr(Development)
9. D8 Dozer 220 1
10. Submersible pump 12.5 H.P 1
11. Centrifugal pump 50 H.P 1
12. Jeep 1

2.3.3 Production Level:

The mining plan is being submitted under Rule 24 of MCR-1960. Mining is being
carried out by open cast method. Systematic mine development and winning of limestone is
planned up to a depth of 115 m in this mine i.e. up to – 40RL which is considered as

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

economical mining limit. Based on the disposition and the width of the limestone body, the
ultimate pit limit is arrived accordingly.
The mine is worked along the strike of limestone in the East- West direction.
The mine being worked at present has a dimension of 625 m x 525 m and the present
working is at - 10 R.L

On the hang wall side (Northern side) major development is done on the North
western side along section AA‟, BB‟ and CC‟. The major development is to push the benches
of Charnockite and siliceous limestone to work the bottom benches.

On the footwall side (Southern side) major development is done on the North western
side along section DD‟, EE‟ and FF‟. Here also the major development is to push the
benches of Charnockite and siliceous limestone to work the bottom benches.

The side wall development will be carried out with the help of deep hole drilling,
blasting and excavation by shovels in combination with rear dumpers. During production of
limestone deep hole drilling and blasting will be adopted. Rock breaker will be used for
breaking of oversize boulders. Limestone benches will be slices of 5m and will be merged as
10m as the bench reaches the side wall.
The side wall development will be carried out with the help of shovels, dumpers and
dozer and the height of the benches in development is being maintained as 10m, which
would be the safe working height of shovels deployed. Specific permission from Directorate
of Mines safety has been obtained for adopting a system of deep hole blasting and for
working with the help of heavy machinery for digging, excavation and removal of ore etc.
under regulation 106 (2) (b) of Metalliferrous Mines Regulation 1961.

Year wise development for the ensuing 5 years period:-

Table No - 18
Year Limestone Magnesian Total Mineral Sibeburden Interburden Total Sub grade
Limestone Production Reject waste (Sil.Limestone)
(Tonnes) (Tonnes) (Tonnes) (Tonnes) (Tonnes) (Tonnes) (Tonnes) (Tonnes)
2013-14 271262 174608 445870 78682 0 240845 319527 269842
2014-15 297228 157242 454470 80201 93199 111706 285106 163662
2015-16 271530 181008 452538 79860 11513 178874 270247 195763
2016-17 298262 152738 451000 79588 44235 224699 348522 142247
2017-18 257842 197455 455297 80347 69774 212473 362594 155017

TOTAL 1396124 863051 2259175 398678 218721 968597 1585996 926531

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Table No – 19
Details of production of limestone and magnesian limestone during the plan period :

Section Production Section Waste Ore :

along Quantity along Quantity O.B
S.No Year Production Development
from mnes (T)
(T)
Section East 70 – 400 Section
1st Year BB’, CC’ 445870 AA’, BB’ & East 00 – 290 / 319527
1 / North 135 – 1 : 0.72
(2013-14) & DD’, CC’, North 415 - 575
345
Section Section East 00 – 290 /
AA’, BB’, AA’ BB’, North 415 - 575
East 30 – 320
2nd Year CC’ & CC’, DD’ & East : 300 – 560 / North :
2 / North 130 – 454470 285106 1 : 0.63
(2014-15) DD’, EE’ 175 – 220
355
East : 70 – 230 / North : 70
– 230
Section Section East 00 – 290 /North 415
East 15 – 400
3rd Year AA’, BB’, AA’ BB’, – 575
3 / North 120 – 452538 270247 1 : 0.60
(2015-16) CC’ & CC’, DD’ East 400 – 500 /North 150
345
DD’, EE’ & FF’ - 220
Section Section East 00 – 290 /North 415
East 50 – 460
4th Year AA’, BB’, 451000 AA’ BB’, – 575 348522
4 / North 50 – 1 : 0.77
(2016-17) CC’ DD’& CC’, DD’ & East 260 – 505 /North 105
400
EE’ EE’ – 295
Section Section East 00 – 290 /North 415
East 175 –
5th Year CC’, DD’ 455297 AA’ BB’, – 575 362594
5 500/ North 1 : 0.80
(2017-18) & EE’ CC’, DD’ East 365 – 550 /North 110
130 – 330
EE’ & FF – 230
2259175 1585996 1 : 0.70

2.4. Mineral Beneficiation:

The ROM is transported from mines to crusher situated at the factory site, where
separate feeding and crushing arrangements are available. Thus, no beneficiation of the
limestone is involved except sizing of the quality material to meet the parameters specified
for Cement manufacture. No chemical beneficiation is proposed /envisaged for the
limestone. However Screening of Sub grade dump will be carried to recover
limestone/Magnesian limestone

3.0 Review of Implementation of Mining Plan/ Scheme of Mining including Five Year
3.1 Salient points:
The mining plan under discussion is being submitted under Rule 24 of MCR-1960 since
the lessee has applied for renewal of the lease. Salient proposals of the mine plan are
given below.

Reclamation: The mine will be refilled along AA‟ to DD‟ between N 75 to N 490 and E 15 to
E 435 upto 10 RL. Refilling of mine exhausted area will commence from II Scheme period

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

i.e from 2023-28 onwards. During the current plan period also part of the area is shown
temporary refilling due to shortage of waste dump area. After exhaustion of the pit upto -40
RL along Section AA‟, BB‟ and CC‟ the temporary waste dump storage shown along Section
EE‟ and FF‟ on mineralized area will be rehandled and mining will continue upto 10 RL.

Water ponds/ reservoir: No proposal of creating a water pond as mining will continue in the
subsequent plan periods also.

Afforestation: As per the afforestation programme given in the mine scheme period, it was
proposed to cover an area of 1.953 ha. during the scheme period. During the previous
scheme period afforestation was carried out by planting, Neem, Pongamia, Teak, Jatropha,
Prosopis Juliflora saplings with 50 % survival rate.

During the mining of limestone no effluents will be generated which will pollute the
water. However periodical water analysis will be done as a part of the corporate philosophy
and statutory requirement.

Similarly periodical monitoring of ambient air, noise will be carried out and necessary
steps will be taken to maintain the levels will the permissible limits which is discussed in
detail in the Environmental Chapter of the mine plan.

3.1 Measures for dust suppression :

The level of concentration of PM10 & PM 2.5 is well within the permissible statutory limits.
However the following control measures will be adopted to keep the dust levels well within
permissible limits.

Dust particles which are normally generated during various mining operations in mines
become air bore thus leading to increase in PM10 & PM 2.5 level within the mining areas.
Another source of dust generation is the transport of mineral and waste rock by dumpers,
trucks etc. Adequate control measures will be taken during mining operations including
transportation of mineral and waste rock. These control measures are as under

3.1.1 Control Measures during Mining Operations:

Dust extraction system is used in wagon drill machines. The cutting are wetted by
adopting wet drilling wherever possible. Dust generation is being kept down to minimum by
using sharpened bits for drilling holes with proper and efficient flushing system.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

3.1.2 Control Measures during Transport of Mineral & Waste Rock :

Dust suppression system like water spraying on haul roads are practiced. Crowding of
trucks on the haul road is avoided by properly spacing them to avert the concentration of
dust emission at any time.

3.1.3 Mitigating Measures for Air Borne Dust :

In addition to the control measures already taken as above for minimizing the generation
of dust during mining and transport operations, following steps are also taken to mitigate air
borne dust within the mining blocks. Dense trees are planted around the mine wherever
possible. Dust masks are provided to the workers engaged in drilling.

3.1.4 Measures to Control Noise Pollution :

The ambient noise levels in most of the cases are well within safe limit of 90 dB (A)
prescribed by DGMS for eight hour exposure. However, the following control measures are
taken covering the periphery of the mining area and the working area. Development of thick
canopy of trees will be carried out as a part of afforestation which act as noise attenuators.
Proper maintenance of the noise generating parts of the machines are introduced air
silencers of suitable type which can modulate the noise of the engines of machinery are in
use. They will be maintained effectively. Ear muffs will be given to those persons operating
or working close to any machine generating more than 90 dB (A) levels on continuous basis.

3.1.5 Measures To Minimize Ground Vibrations Due To Blasting And Check Noise
Pollution :
The ground vibration due to blasting was studied by D.G.M.S. at different locations and it
was well within the limit. Besides the lessee has also carried out blasting vibration studies.
Review of compliance of Progressive Mine Closure Plan in the during the previous
scheme period is given below in Table No - 42

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Table No - 42

Information on Targets Made of Protective Measures Undertaken for Environmental Protection carried out
during 2008-09
Expenditure
Item Details Quantity done Remarks
Rs. in Lakhs
Back filling is yet to
A) Reclamation
commence as the entire
& Rehabilitation
Back filling Nil Nil mining area is active and
of Mined out
mineral is still to be
Area
exhausted

1) Terracing Nil

2) Construction of
B) Stabilization parapet walls / Retaining 200 0.40
of dumps with wall at terrace (mtr)
lease 3) De-silting of settling
Nil Nil
pits & Channels
4) Coir Geo-textile
Nil Nil
(Sq.m.)
C)
1) Afforestation (Green
Rehabilitation
Land Building) i.e. gap 350 0.25
of barrier area
filling in safety zone area
within lease

1) Ambient Air Quality

Nil
(Core Zone)
Nil

1) Ambient Air Quality

Nil -
(Buffer Zone)

D) 2) Water Quality (Core

Nil -
Environmental Zone) Nil
Monitoring 2) Water Quality ( Buffer
(Core Zone and Nil -
Zone)
Buffer Zone
3) Noise Level Survey
Separately) Nil ___
(Core Zone) Nil
3) Noise Level Survey
Nil ___
(Buffer Zone)
4) Ground Vibration
Nil Nil ___
(Core Zone)
5) Waste water quality Quarterly Nil __
TOTAL 0.65

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Information on Targets Made of Protective Measures Undertaken for Environmental Protection carried out
during 2009-10
Expenditure
Item Details Quantity done Remarks
Rs. in Lakhs
Back filling is yet to
A) Reclamation
commence as the entire
& Rehabilitation
Back filling Nil Nil mining area is active and
of Mined out
mineral is still to be
Area
exhausted

1) Terracing Nil

2) Construction of
B) Stabilization parapet walls / Retaining 0.150 0.30
of dumps with wall at terrace (mtr)
lease 3) De-silting of settling
Nil Nil
pits & Channels
4) Coir Geo-textile
Nil Nil
(Sq.m.)
C)
1) Afforestation (Green
Rehabilitation
Land Building) i.e. gap 750 0.50
of barrier area
filling in safety zone area
within lease

1) Ambient Air Quality

Nil Nil
(Core Zone)
Nil
1) Ambient Air Quality
Nil Nil
(Buffer Zone)

D) 2) Water Quality (Core

Nil Nil
Environmental Zone)
Nil
Monitoring 2) Water Quality ( Buffer
(Core Zone and Nil Nil
Zone)
Buffer Zone
3) Noise Level Survey
Separately) Nil Nil
(Core Zone)
Nil
3) Noise Level Survey
Nil Nil
(Buffer Zone)
4) Ground Vibration
Nil Nil Nil
(Core Zone)
5) Waste water quality Nil Nil Nil
TOTAL 0.80

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Information on Targets Made of Protective Measures Undertaken for Environmental Protection carried out
during 2010-11
Expenditure
Item Details Quantity done Remarks
Rs. in Lakhs
Back filling is yet to
A) Reclamation
commence as the entire
& Rehabilitation
Back filling Nil Nil mining area is active and
of Mined out
mineral is still to be
Area
exhausted

1) Terracing Nil

2) Construction of
B) Stabilization parapet walls / Retaining 225 0.45
of dumps with wall at terrace (mtr)
lease 3) De-silting of settling
Nil Nil
pits & Channels
4) Coir Geo-textile
Nil Nil
(Sq.m.)
C)
1) Afforestation (Green
Rehabilitation
Land Building) i.e. gap 650 0.45
of barrier area
filling in safety zone area
within lease

1) Ambient Air Quality

Nil Nil
(Core Zone)
Nil
1) Ambient Air Quality
Nil Nil
(Buffer Zone)

D) 2) Water Quality (Core

Nil Nil
Environmental Zone)
Nil
Monitoring 2) Water Quality ( Buffer
(Core Zone and Nil Nil
Zone)
Buffer Zone
3) Noise Level Survey
Separately) Nil Nil
(Core Zone)
Nil
3) Noise Level Survey
Nil Nil
(Buffer Zone)
4) Ground Vibration
Nil Nil Nil
(Core Zone)
5) Waste water quality Nil Nil Nil
TOTAL 0.90

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Information on Targets Made of Protective Measures Undertaken for Environmental Protection carried out
during 2011-12
Expenditure
Item Details Quantity done Remarks
Rs. in Lakhs
Back filling is yet to
A) Reclamation
commence as the entire
& Rehabilitation
Back filling Nil Nil mining area is active and
of Mined out
mineral is still to be
Area
exhausted

1) Terracing Nil

2) Construction of
B) Stabilization parapet walls / Retaining 225 0.45
of dumps with wall at terrace (mtr)
lease 3) De-silting of settling
Nil Nil
pits & Channels
4) Coir Geo-textile
Nil Nil
(Sq.m.)
C)
1) Afforestation (Green
Rehabilitation
Land Building) i.e. gap 1000 0.75
of barrier area
filling in safety zone area
within lease

1) Ambient Air Quality

1 stations
(Core Zone)
6 Stations, half yearly 6
1.25
samples
1) Ambient Air Quality
5 stations
(Buffer Zone)

D) 2) Water Quality (Core

2 7 Stations , half yearly 7
Environmental Zone)
1.25 samples
Monitoring 2) Water Quality ( Buffer
(Core Zone and 5
Zone)
Buffer Zone
3) Noise Level Survey
Separately) 2 7 Stations , half yearly 7
(Core Zone)
0.50 samples
3) Noise Level Survey
5
(Buffer Zone)
4) Ground Vibration
1 time 1.00 ___
(Core Zone)
5) Waste water quality Quarterly 0.20 __
TOTAL 5.40

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Information on Targets Made of Protective Measures Undertaken for Environmental Protection carried out
during 2012-13
Expenditure
Item Details Quantity done Remarks
Rs. in Lakhs
Back filling is yet to
A) Reclamation
commence as the entire
& Rehabilitation
Back filling Nil Nil mining area is active and
of Mined out
mineral is still to be
Area
exhausted

1) Terracing Nil

2) Construction of parapet
B) Stabilization
walls / Retaining wall at Nil Nil
of dumps with
terrace (mtr)
lease
3) De-silting of settling pits
Nil Nil
& Channels
4) Coir Geo-textile (Sq.m.) Nil Nil
C)
1) Afforestation (Green
Rehabilitation
Land Building) i.e. gap 500 0.35
of barrier area
filling in safety zone area
within lease

1) Ambient Air Quality 6 Stations, half yearly 6

1 stations
(Core Zone) samples
1.25
1) Ambient Air Quality 6 Stations, quarterly 6
5 stations
(Buffer Zone) samples

7 Stations , half yearly 7

2) Water Quality (Core
D) 2 samples
Zone)
Environmental 1.25
Monitoring 2) Water Quality ( Buffer
(Core Zone and 5 7 Stations , 4 season
Zone)
Buffer Zone 7 Stations , half yearly 7
Separately) 3) Noise Level Survey
2 samples
(Core Zone)
0.50
3) Noise Level Survey
5 ___
(Buffer Zone)
4) Ground Vibration (Core
1 time 1.00 ___
Zone)
5) Waste water quality Quarterly 0.20 __
TOTAL 4.55

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.0 Closure Plan :

4.1. Mined – Out Land:
The limestone occurring in the Mining lease Area is a linear body narrow in the eastern
side and gets wider on the western side. The width of the limestone band is about 285 m in
the Western Part and about 180 m in the Eastern Part. General strike of the band is East –
West directions and dip towards south. Pits are opened along the strike direction and more
or less benches are formed parallel to the strike direction. Depth of the lime stone has been
proved generally up to – 40 RL and benches will be formed up to that level. 10.19 Mil.T of
mineable reserves is available at the start of the plan period, mining will take place for 22.6
years at the proposed rate of production excluding the present plan period. Temporary
refilling will be carried out during the present plan period. However refilling will take place
from 2023 onwards. Refer Plate – 11 for Progressive Mine Closure Plan.

4.1.1. Ultimate Extent and size of the Pit:

Average Average Average depth (m)
length (m) width(m)
630 550 - 40 RL or 120
m(Maximum)
Average depth 74 m

The ultimate pit boundary of the area is shown in the Conceptual Mining Plan and in
Conceptual Mining Cross Section.
Proposal of reclamation:- only temporary stacking of waste will take place inside
the pit during the 4th and 5th year of the plan period. The mine will not be refilled during
the present plan period. However refilling of the worked out pit will commence from 2023
onwards i.e. from second scheme period. Besides the dumps will be re-handled and refilled
in the mineral exhausted pits. Thus the dumps are temporary and ultimately no dumps will
exist in the post mining period.

4.2 Water Quality Management :

The ground water available within the Core Zone area is being pumped out for domestic
purpose. Besides, the water collected in the mine sump will be allowed to settle down and
then pumped for afforestation, dust suppression besides using the water for farm lands of
the applicant situated at distance of 3 kms from the mining area. The surface water sources
are River Thamiraparani and Tirunelveli canal which is at distance of 8 & 7.5 kms
respectively from the Core Zone Area.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Surface water and Ground water samples were collected in different locations. The
results of the water analysis are given in the below table.

Seven sampling stations have been fixed to represent both ground and Surface water
within the buffer zone. The results are tabulated vide Annexure –14. From the analysis
results it could be seen that all the vital parameters are within permissible limits of safe
drinking water and hence the water is Potable

4.2.1. Physiographical Details and Drainage Pattern:

The limestone deposit in the Mining lease area is situated on the southern slope of the
Thalaiyuthu quartzite hillock which is running East West direction. The terrain area has a
low relief on the southern side. The area is rocky with quartzite boulders occurring all
around and scattered. The area experiences very scanty rainfall even during monsoon
period. The vegetation are mainly xerophytes like cactus, and no other trees are found to
be grown in the area. The perennial River Thamirabarani is flowing 8 km South East of the
lease area. There are some small water bodies occurring here and there around the area.
They are seasonal and dry almost throughout the year.

4.2.2. Hydro – Geological Conditions:

The region is predominantly rocky with scanty vegetation and soil cover. The climate is
arid with little rainfall. These factors coupled with absence of good aquifers are not
conducive to rich ground water resources.

The groundwater level in dug wells during July-2011 is generally in the range of 2.12 m
bgl to 10.20 m bgl. whereas, in bore wells the depth to water is in the range of 6.90 m bgl to
10.04 m bgl. The same wells were monitored during Feb-12 and water samples also
collected for analysis. The groundwater level in dug wells during Feb-2012 is generally in the
range of 0.80 m bgl to7.20 m bgl. Whereas the depth to water level in bore wells during feb-
12 is measured and it is in the range of 4.23m bgl to 7.04 m bgl.

From the Reconnaissance field survey and water level monitoring, it is inferred that, the
shallow aquifers system is not getting affected due by the mining activity. It is proved with
the existing conditions that the water levels measured are ranging from 3 to 12 m bgl in and
around/nearby the mining area, whereas the mining operation is going upto 90-100 m below
ground level. Thereby, the natural recharge mechanism i.e recharge to groundwater regime
of shallow aquifers is not affected by the existing mining activities. Also, the deeper aquifers
are not present in the mining area.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Hence, it is inferred that even though the existing depth of the mine is more than 90 m
below ground level, the groundwater recharge is taking place in the shallow aquifers (up to
20m) is not getting drained out into mine. The presence of shallow water level is an
indication that ground water recharge is not affected due to the mining activity indicating
heterogeneity nature of the aquifers present in the area.

4.2.3. Measures for minimizing Adverse Effects on Water Regime:

The source of water pollution will be from the soil wash off emanating from excavated
quarry benches and mine areas, from external dumps and pumping of water from the mine
sump. To minimize the adverse effects on water regime due to the above activities, the
following control measure will be taken.
iv) Maintain gradient of 1 or 20 for drainage of water on the bench floors and construction
of water drains using local material to prevent wash off and un-controlled descent of water.
v) Garland drains will be dug around the quarry to prevent rain water draining in to the
quarry.
vi) The dumps will be provided with inner slope on top surface and through a system of
drains will be allowed to descend in to surrounding drains so as to minimize the erosional
effects arising out of uncontrolled descent of water.
vii) Mine sump water will be pumped by suitable pumps mounted at the top of mine sump,
4” delivery G.l. pipes are used to deliver the water up to the plantation point for
afforestation work. Hence there will not be any water let outside the premises and the
entire pumped water will be used for plantation.

4.3 Air Quality Management :

4.3.1. Quality of Air:
In any mechanized mining operations , using the down the hole drilling , heavy earth
moving machineries like excavators & tippers , some quantity of dust is bound to be
generated depending on the topography , nature of the material handled and climatology
parameters like wind speed , wind direction and stability classification of the area viz.
location of the buffer zone villages. The deleterious parameters of the air quality to be
considered for open cast mine shall be So2, & NOx. From the base line data generated so
far, it is found that the ambient air quality is within the permissive limits of CPCB.

Air:
 To establish the ambient air quality, air quality was studied during different periods.
 Ambient air quality sampling was carried out, with the help of high volume air
samplers and repairable dust samplers.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

 Air monitoring stations have been fixed covering the 6 locations.

 The 6 stations are fixed at Front side of Mines Office, Near Generator Room, Top
of quarry, Near Haul roads, near north loading point and near drilling area in the
mines. The parameters of PM10 & pm 2.5, NOX and SO2 are monitored. The CO
is below detectable limits.
 The ambient air, the PM10 values were in the range of 38.1-92.4 ug/m3. PM2.5
values were in the range of 18.5 to 49.9 ug/m3. SO2 levels were ranging from 4.2
to7.4 ug/m3. NOx levels were ranging from 8 to 23.7ug/m3. While comparing with the
NAAQ Norms, all monitored PM10, PM2.5, SO2, NOx, and values were found to be
well within the respective limit values.The CO values in the all locations found to be
below detectable limit.
 The existing Ambient Air Quality levels for PM 10, PM 2.5, SO 2 & NOX are within the
prescribed CPCB limits for “Industrial, Residential, Rural & other areas”.
 Results are tabulated and given vide Annexure No – 12. It is thus found all the
relevant air quality parameters are found to be well within the threshold levels.

4.3.2. Corrective Measures Taken for Prevention of Air Pollution:

The level of concentration of PM10 & PM2.5 is well within the permissible statutory
limits. They are below the limits prescribed by the CPCB in case of all pollutants.
Following control measures are however adopted to keep the dust levels well within
permissible limits.

Dust particles which are normally generated during various mining operations in mines
become air borne thus leading to increase in particulate matter level within the mining
areas. Another source of dust generation is the transport of mineral and waste rock by
dumpers/dump trucks, etc. Adequate control measures are therefore taken during mining
operations including transportation of minerals and waste rock. These control measure s
are as under.
a) Control Measures during Mining Operations
i) Dust extraction system will be used in drill machines. The cuttings will be wetted by
wet drilling wherever possible.
ii) Dust generation will also be kept down to minimum by using sharpened bits for drilling
holes with proper and efficient flushing system.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

b) Control Measures during Transport of Mineral & Waste Rock

i) Dust suppression system like water spraying on haul roads will be regularly practiced.
This shall be followed vigorously. In addition, whirling type of sprinklers will also be
introduced on a straight portion of haul road.
ii) Crowding of dumpers on the haul road will avoided by properly spacing them to avert
the concentration of dust emission at any time.

C) Mitigating Measures For Air Borne Dust:

In addition to the control measures already taken as above for minimizing the
generation of dust during mining and transport operations, following steps are also be
intensified to mitigate air borne dust within the mining blocks.
i) Dense tree belts shall be planted around the mine wherever possible.
ii) Plantation shall be done on dumps to stabilize the same.
iii) Dust masks shall be provided to the workers engaged in drilling.

4.4 Waste Management:

4.4.1. Rate of yearly generation of wastes and proposals for disposal of waste:
The only waste mined from this mine is development and interstitial waste. The
generation of development waste from the area is given below in Table
Year Wise Generation of Development Waste Quantity
Table No - 28

Year Mineral Sibeburden Interburden Total

Reject waste
(Tonnes) (Tonnes) (Tonnes) (Tonnes)
2013-14 78682 0 240845 319527
2014-15 80201 93199 111706 285106
2015-16 79860 11513 178874 270247
2016-17 79588 44235 224699 348522
2017-18 80347 69774 212473 362594
TOTAL 398678 218721 968597 1585996

4.4.2. Land Chosen for disposal of waste with proposed justification

Sufficient care was taken while selecting the site for waste dump based on the
economically feasibility and ultimate depth of mining.
During the plan period waste will be dumped on the North western corner of the lease.
This area will not affect future mining.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

During the plan period an area of about 3.114 Ha will be utilized for dumping the waste.
Further 2.425 Ha will be utilized for sub grade dumping.

During the conceptual period temporary dump will be created within the eastern side of the
pit. The temporary dump will be rehandled and dumped in the western side of the lease area
once the mineral is exhausted in this portion. This will be done during the second scheme
period i.e from 2023 onwards. No additional area is required for dumping. Hence the area
selected for dumping is adequate.

4.4.3. Stabilization and vegetation of dumps:

The overburden is dumped, in the plan period, in the area allotted for the dump yard.
The dump will have a height of 30 m and shall be sloped in 1 in 2. Below the foot of the
slopes a retaining wall of 1.2 m x 1.2 m shall be constructed using waste boulders with a
view to contain the loose soil dump. The waste dumps will be re-handled during the
conceptual period and refilled in the worked out pits.

Although the dumps are temporary the dump shall be suitably stabilized using
hamata grass species and legumes to prevent soil erosion. The slopes shall have contour
trenches of 1 m interval where agaves species shall be planted to consolidate the dump.
Preventive measures:
i) The dump tops will be adequately sloped and water diversion channel shall
be provided to prevent erosion & formation of gullies.
ii) Earthen banks will be provided around the dumps to arrest silt.
iii) Proper terracing of dump slopes with optimum height will be made.
iv) Mixed grass application on dumps slopes.
v) To prevent siltation around the dump, garland drains will be constructed.
vi) There are no toxic and hazardous elements present in the waste material.
The dumps are going to active dumps and the dumping will be carried out during
the plan period. Hence the proposal of dump plantation does not arise during the present
plan period.
4.5 Topsoil Management :
Since the mine is one of the oldest mine and already opened and limestone exposed,
there will not be any generation of topsoil further more.

4.6 Tailing Dam Management :

During mining operation for exploitation of limestone, no other beneficiation process are
involved. Hence the management of tailing dam is not applicable.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.7. Infrastructure:
Infrastructure facilities in the form of office, store room, first aid room, drinking water bore
well are already provided in the mine. The buildings are semi-permanent in nature and there
will not be any problem in dismantling them during the closure of mine. The bore wells will be
utilized for public purpose after the closure of the mine. The mine roads are also semi-
permanent in nature and there will not be any impact after the closure of mine.

4.8. Disposal of Mining Machinery:

There is no proposal of decommissioning of mining machineries as they will be shifted to
other mines of the applicant.

4.9. Safety and Security:

As a measure of safety, peripheral bund all along mining lease area will be formed. To avoid
unauthorized entry to the excavated areas from the surface openings by general public,
proper fencing will be made and also plantation will be raised all along the periphery of the
worked out pit .

4.10 Disaster Management and Risk Management:

Risk assessment is a process whereby risks are analysed, assessed and risk management
priorities are evaluated. It is defined as the characterization of the potential adverse effect to
human health & environment due to environmental hazards.

Objectives of risk assessment:-

 Identifying hazardous activities
 Assessment of risk level and severity in different operations
 Identification of control measures
 Setting monitoring process
 Reduce the impact of mishaps of all kinds
 Reduce the inherent potential for major accidents

Methodology of Risk assessment:-

 Collection of information & identification of hazard
 Classify their severity and probability of occurrence
 Identification of exposed risks
 Assess the risk and risk rating based on
- Probability
- Exposure
- Consequence

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

 Prioritization of the risks

 Implementation of control measures
 Monitoring risk assessment
 Evaluation and correction
Risk assessment is mainly based on the environmental impact of various parameters.
i) Land contamination:-
The potential for contamination during operation of mine site is, waste rock dump which
regard as contaminated land.
ii) Aquatic toxicity:-
The risk assessment in aquatic toxicity system is based on the total metal concentration in
various chemical form or oxidation state. Limestone does not contain appreciable
concentration of toxic elements.
iii) Acid mine drainage:-
The mining of limestone does not involve any processing operation or by using chemicals.
Hence there is no risk at mine site with regard to control of acid mine drainage
iv) Tailing dam:-
Tailings are very fine residuals in the chemical processing operation. It is a potential source
of environment contamination. In the limestone mining operation there is no possibility of
tailing materials since it is not involved in the chemical process.
v) Human health:-
The chemicals from tailing dam and waste heaps may severely affect the human health. The
sulphur contained in the dump can make the land toxic which indirectly affect the human
health. During Environment Impact Assessment toxicity was nil. Hence there is no risk
involved to human health due to limestone mining operation. Nnnn

Factors of risks involved due to human induced activities in connection with mining
operations are 1) removal of O.B and side burden 2) drilling 3) blasting 4) excavation of ore
and 5) transportation of ore.

Other factors due to natural activities are 1) fire 2) water inundation 3) electricity and 4)
natural calamities.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

S.No Factors Causes of risks Control measures

1 Removal of O.B a) Top soil & O.B bench may Over all O.B bench slope angle
slide due to its unconsolidated will be maintained not more than
nature. 45°
b) Vibration due to movement of Bench height shall not exceed 1.5
vehicles in the O.B benches m in O.B
2 Drilling a)Due to high pressure of During preventive & Periodical
compressed air hoses may maintenance and replacement of
burst worn out accessories in the
compressor and drill equipment
b)Jack hammer rod may broken As per manufacturers
due to improper maintenance of recommendation rod to be
the rod replaced and bits will be changed
3 Blasting a) Fly rock, ground vibration and Burden and spacing will be kept
noise etc., optimum on trail basis and
b) Improper charging of inclined drilling will be done.
explosives Explosive charge per delay will be
minimized.
4 Excavation of Ore a)Hauling and loading Operator shall not operate the
equipment are in such proximity machine when person & vehicles
while excavation are in such proximity
b)Swinging of bucket over the Shall not swing the bucket over
body of tipper the cab and operator leaves the
machine after ensuring the
bucket is on ground

c) Driving of un authorized Shall not allow any unauthorized

person person to operate the machine
by effective supervision
5 Transportation of ore a)Operating the vehicle “ nose to It will be ensured that all these
tail” causes will be nullified by giving
training to the operators
b) Overloading of material No over loading
c) While reversal & overtaking of Audio visual reverse horn will be
vehicle provided
d) Operator of truck leaving his
cabin when it is loaded. Proper training will be given

6 Fire due to electricity and a)Due to the short circuit of Commutator & electrical parts
Oil cables & other electrical parts shall be cleaned frequently with

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

b) Due to the leakage of the help of dry air blower

inflammable liquid like diesel, oil All fastening parts and places will
etc, be tightened.
7 Water inundation a)Inrush of storm water due to Guard will keep a continuous
heavy rain watch on water level and when
touches danger mark immediately
inform to the mine official.
b) Unprecedented opening of On getting the flood , warning
dam in the upstream side of the siren will be given
river
c) Unusual seepage of water Withdraw all the persons from the
from river side mine via shortest route in an
orderly manner
d)Sudden collapse of peripheral Work shall not be resumed except
bund due to torrential pour with the prior permission of the
Manager unless all the working
places thoroughly examined by a
competent person.
8 Natural calamities Unexpected happenings The mine management is capable
to deal with the situation

Disaster Management Plan:-

The management is able to deal with the situation efficiently to reduce confusion keeping in
view of the likely sources of danger in the mine.

Structure of the Disaster Management Plan:-

Out line of Disaster management plan:-
The purpose of disaster management plan is to restore the normalcy for early resumption of
mining operation due to an unexpected, sudden occurrence resulting to an abnormality in
the course of mining activity leading to a serious danger to workers or any machinery or the
environment

System of communication:-
Krisna mines has an internal communication system provoided for the department head and
to their line of command with telephone. And also it has the telephone nos and addresses of
adjoining mines, rescue station, police station, Fire service staw tion, local hospital,
electricity supply agency and standing consultative committee members.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Consultative committee:-
A standing consultative committee isformed under the head of Mines manager. The
members consists of safety officer / medical officer / Asst. manager/ public relation officer/
Foreman/ and environmental engineer.

Facilities & Accommodation:-

Accommodation and facilities for medical centre, rescue room and for various working
groups will be provided.

First Aid & medical facilities:-

The mine management is having first aid / medical centre for use in emergency situation. All
casualties would be registered and will be given first aid. The centre will have facilities for
first aid & minor treatment, resuscitation, ambulance and transport. It will have proper
telephone / wireless set for quick communication with hospitals where the complicated cases
are to be sent.

Stores and equipment:-

A detailed list of equipment is available, its type & capacity and items reserved for
emergency.

Transport services:-
A well defined transport and control system will be provided to deal with the situation.

Functions of public relations group:-

To make a cordial relation with government officials and other social service organization
and working groups. To liaise with representatives of the mine to ameliorate the situation of
panic, tension, sentiments, grievances and misgivings created by any disaster. To
ameliorate the injured, survivors and family members of affected persons by providing
material, moral support and establishing contact with relatives of victims.

Security: - Manning of security posts

Catering & Refreshment: - Arrangement to be made for the victims, rescue teams and
others.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

4.11 Care and maintenance during temporary discontinuance:

If the mine will be discontinued temporarily for more than 120 days, notice will be given 30
days before the date of such discontinuance to the concerned authorities. During
discontinuance period safety arrangement and fencing will be provided to avoid the entry of
unauthorized persons. The accessibility to the mine from the surface will be prevented by
providing fencing arrangement.

Emergency plan:-
On realising anything serious happening anywhere in the mine, action will be taken to
immediately inform the nearest mining official will be taken.
On being informed about the emergency it will be verified for the correctness of information
and telephone in particular to the Manager and managers of adjoining mine so that persons
may be withdrawn.
On receiving information of emergency, intimation will be sent to the consultative committee
which is already formed. Shift in-charge will ensure that all the materials and transport
system to deal with emergency situation is well prepared and in readiness.

First aid facilities to be ready to receive the cases.

Name, address and contact number of the person responsible for management of
the disaster / emergency plan is given below
Mines Manager,
23, Sripuram,
Tirunelveli District.
Tamil Nadu,
Ph: (0462) 2333200

5.0 Economic Repercussions of Closure of Mine and Manpower Retrenchments:

5.1 Number of local residents employed in the mine, status of the continuation of family
occupation and scope of joining the occupation back:
The lessee employees around 67 persons (Skilled, Semi-skilled and Unskilled) for
mining and connected activities from the nearby villages. The mining will continue
throughout the year giving enough for the people employed.
5.2 Compensation given or to be given to the employees connecting with sustenance of
workmen and their family members:
The lessee will adhere by the law prevailing at the time of discontinuance, if such a need
arise.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

5.3 Satellite occupations connected to the mining industry – number of persons engaged
therein continuance of such business after the mines close: Not Applicable.
5.4Continued engagement of employees in the rehabilitation status of mining lease area and
any other remnants activities: Not applicable
5.5 Envisaged repercussions on the expectation of the society around due to closure of the
mine: In case of closure of the mining activity of this particular mine the labour force will
be shifted to other mines of the applicant the vicinity catering the needs of the plant

6.0 Time Scheduling for Abandonment:

The proposed rate of production per annum is roughly 450000 Ts or 0.45MTPA.
The mineable reserves calculated as 10.19 Mil.T inclusive of magnesium limestone. The
proposed rate of production will also be maintained during the conceptual period. Based
on the rate of production per day, the life of the mine will be 22.6 years or 23 years After
exhaustion of all mineral, part of the pit will be refilled and part of the pit will be used for
storing rain water and the mine will be protected by providing barbed wire fencing. The
dumps will be re-handled and refilled in the worked out pits.
However the time schedule for abandonment of the mine is discussed below in brief.
1. Construction of retention wall - 1200 m
Size: Width – bottom 3 m, Top – 2.0 m and Height – 3.0 m
Volume of work – 1200 *(3+2)/2 * 3.0 = 9000 Cu.m
2. Fencing at top of workings:
Total length of fencing – 1500 m
No: of workers required for fencing including fixing of granite poles @ 3 / m
interval and 4 rows of barbed wire
@ 20 m/worker/day - 75 man days
@ 5 workers/day - 15 days

7.0 Abandonment Cost:

The abandonment cost includes cost of fencing, cost of stabilization of dumps and
plantation cost etc., The G.O.M.S. No.48/115 and G.O.M.S. No. 1081 are being worked
continuously and they are adjacent to each other. As far as G.O. No. 1081 is concerned only
two sides are free for fencing (i.e., Northern, southern and part of eastern side), the western
side of the lease is covered by pits of India Cements Mines. Hence the abandonment cost
is calculated only for the three sides. The required length of the barbed wire for fencing is
roughly 1500 m.
Tentative cost of each of important activity of abandonment e.g, decommissioning,
reclamation & rehabilitation etc have been indicated to have an idea about the funds that

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

may be required for the final closure is indicated below. This included the amount proposed
to be spent for reclamation & rehabilitation during the PMCP period i.e. the present plan
period.
1) Decommissioning / Demolition :
Not applicable

2) Removal of infrastructure
Permanent structures are proposed for office infrastructures, first aid centre
etc which will be utilized by public after the mining operation ceases.

3) Removal of equipments and heavy machineries:

The HEMM deployed will be shifted to other mines or sold.

4) Site Safety:
Fencing
Fencing at top of workings:
Total length of fencing - 1500 m
No: of workers required for fencing including fixing of granite poles @ 3m
interval and 3 rows of barbed wire
@ 20 m/worker/day - 75 man days
@ 5 workers/day - 15 days
Cost of granite poles - 500*150=Rs.75, 000
Cost of 1 kg barbed wire (6m per Kg) - Rs.100
Cost of barbed wire - 750*100= 75,000
Cost of labourers - 15*5*150= Rs.11, 250
Total cost for Fencing - Rs 1, 61,250

5) Remediation / Mitigation measures:

Total cost required for constructing garland drain, retaining wall and
reclamation and rehabilitation of dumps through plantation are calculated as
follows:

i) Providing garland drain:

Taking an average length of 1000m, total amount required will be Rs.4,
00,000/- @Rs.200/- per meter. Dimension of the garland drain will be of 1000
m (length) x 2m (width) x 1m (depth).

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Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

ii). Retaining Wall

Retaining wall for a length of 1000 m having a width of 1m and height of 2 m
is planned all along the foot of the dumps & also at terraces. The total cost for
constructing retaining wall is Rs.2, 00,000 @ Rs.100/cu.m

iii). Monitoring
Cost of Environmental monitoring per annum = Rs 2, 50,000 lakhs
(AAQ+Noise+water)

iv) Total expenses shall be Rs.10, 11,000/-

viii) Standard cost norm for enrichment of plantation per Ha is as under

a) PRE-PLANTING & NURSERY

Table No - 43

Sl. 2500 plants/Ha Wage rate Rs.150/-

No. Item of work Man days Amount
Required (in Rs.)
1 Site preparation 15 22,50.00
2 Alignment & stacking 10 1500.00
3 Nursery cost of 2500 seedlings ----- 12500.00
@Rs.5.00
4 Pitting 15 2250.00
Sub Total : 18500.00

b) CREATION AND MAINTENANCE Table No - 44

1. Carriage & planting 10 750.00

2. Weeding, soil working and manuring (thrice) 7 1050.00
3. Application insecticides (thrice) 3 450.00
4. Fireline tracing inspection path 4 600.00
5. Cost of fertilizer & insecticides Lump sum 2000.00
6. Watch & ward 2 300.00
Sub-Total : 5150.00
Grand total ; 23,650

(6). Reclamation and rehabilitation of workings: -

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Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

(7) Maintenance / monitoring during and after closure operation:

Not applicable

(8) Retrenchment and relocation cost:

Not applicable

(9) Research and development:

Not applicable

(10) Administrative/management:

i) Fees to be paid for preparation of closure plan procurement of

information and data from various institution/organization is Rs.1,
00,000/-.
ii) Salary and wages of at least Two (2) supervisory and managerial
personnel for maintenance and monitoring activities for 2 years
Rs.1,44,000/- @ Rs.6,000/- per month per person in an average.
iii) Total amount requirement under administrative expenditures is
Rs.1,00,000/- + Rs.1,44,000/- = Rs.2,44,000/-

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

Table No - 45

YEARLY PROPOSAL FOR ITEM NO. 6 & 7 OF PMCP FOR 2013-14(1st YEAR) FOR KRISHNA MINES IN
RAMAYANPATTI OVER AN EXTENT 31.092 HA.
Items Details Area (Ha.) Area In Expenditure(Rs In Lakhs)
Prop Actual In Ha
I YEAR
(A) RECLAMATION (i) Backfilling Nil Nil Nil
& REHABILITATION (ii) Afforestation on the Nil Nil Nil
OF MINED OUT : backfilled area
LAND/AREA (iii) Others (please specify) Nil Nil Nil
e.g. Afforestation on
exhausted benches.
(iv) Pisciculture
(v) Converting into water Nil Nil Nil
reservoir
(vi) Picnic Spot Nil Nil Nil
(B) STABILIZATION (i) Terracing
& (ii) Pitching
REHABILISATION (iii) Construction of Parapet 300 meters @Rs.150/M (Stone Pitching)
OF DUMPS (within Walls/ Retaining wall at toe of Rs.45,000
mining lease) dumps (in mtr)/SG stack
(iv) Construction of Check Nil Nil
Dams along slope of valise
etc.
(v) Construction of Settling Settling pond Settling Pond –
Ponds (Garland drain etc.) – 1 no. Rs. 50,000/-
Garland Garland drain –
drain - Rs.60,000/-
(vi) De-silting of settling Nil Nil
300.00 m
ponds, channels
(vii) Afforestation on dumps Nil Nil
(viii) Others (Please specify) Nil Nil
(C) (i) Afforestation (Green belt 800 no. @Rs.10/- per tree including
REHABILITATION building) sapling, digging and planting –
Rs.8,000/-
OF BARREND Water per day 1 trips/Day for
AREA WITHIN 250 days - Rs. 27,000/-
LEASE
Maintenance -Rs. 28,500/-
Total-Rs 63,000/-
(ii) Others (Please specify)
(D) (i) Ambient Air Quality Quarterly monitoring
ENVIRONMENTAL – Rs.1,25,000/-
MONITORING (ii) Water Quality (Surface Quarterly monitoring
(Core zone & Buffer and Ground water Rs.1,25,000/-
zone separately) (iii) Noise Level Survey Quarterly monitoring
Rs.50,000/-
(iv) Ground Vibration Once in a year
Rs.50,000/-
(v) Others (Please specify)
Total Rs.5.68 lakhs

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARLY PROPOSAL FOR ITEM NO. 6 & 7 OF PMCP FOR 2014-15 (2nd YEAR) FOR KRISHNA MINES IN
RAMAYANPATTI OVER AN EXTENT 31.092 HA.
Items Details Area (Ha.) Area In Expenditure(Rs In Lakhs)
Prop Actual In Ha
I YEAR
(A) RECLAMATION (i) Backfilling Nil Nil Nil
& REHABILITATION (ii) Afforestation on the Nil Nil Nil
OF MINED OUT : backfilled area
LAND/AREA (iii) Others (please specify) Nil Nil Nil
e.g. Afforestation on
exhausted benches.
(iv) Pisciculture
(v) Converting into water Nil Nil Nil
reservoir
(vi) Picnic Spot Nil Nil Nil
(B) STABILIZATION (i) Terracing
& (ii) Pitching
REHABILISATION (iii) Construction of Parapet 300 meters @Rs.150/M (Stone Pitching)
OF DUMPS (within Walls/ Retaining wall at toe of Rs.45,000
mining lease) dumps (in mtr)/SG stack
(iv) Construction of Check Nil Nil
Dams along slope of valise
etc.
(v) Construction of Settling Settling pond Settling Pond –
Ponds (Garland drain etc.) – 1 no. Rs. 50,000/-
Garland Garland drain –
drain - Rs.60,000/-
(vi) De-silting of settling Nil m
300.00 Nil
ponds, channels
(vii) Afforestation on dumps Nil Nil
(viii) Others (Please specify) Nil Nil
(C) (i) Afforestation (Green belt 825 no. @Rs.10/- per tree including
REHABILITATION building) sapling, digging and planting –
Rs.8,250/-
OF BARREND Water per day 1 trips/Day for
AREA WITHIN 250 days - Rs. 27,000/-
LEASE
Maintenance -Rs. 28,500/-
Total-Rs 63,750/-
(ii) Others (Please specify)
(D) (i) Ambient Air Quality Quarterly monitoring –
ENVIRONMENTAL Rs.1,25,000/-
MONITORING (ii) Water Quality (Surface Quarterly monitoring
(Core zone & Buffer and Ground water Rs.1,25,000/-
zone separately) (iii) Noise Level Survey Quarterly monitoring
Rs.50,000/-
(iv) Ground Vibration Once in a year
Rs.50,000/-
(v) Others (Please specify)
Total Rs.5.687 lakhs

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARLY PROPOSAL FOR ITEM NO. 6 & 7 OF PMCP FOR 2015-16(3rd YEAR) FOR KRISHNA MINES IN
RAMAYANPATTI OVER AN EXTENT 31.092 HA.
Items Details Area (Ha.) Area In Actual Expenditure(Rs In Lakhs)
Prop In Ha
I YEAR
(A) RECLAMATION (i) Backfilling Nil Nil Nil
& REHABILITATION (ii) Afforestation on the Nil Nil Nil
OF MINED OUT : backfilled area
LAND/AREA (iii) Others (please specify) Nil Nil Nil
e.g. Afforestation on
exhausted benches.
(iv) Pisciculture
(v) Converting into water Nil Nil Nil
reservoir
(vi) Picnic Spot Nil Nil Nil
(B) STABILIZATION (i) Terracing
& (ii) Pitching
REHABILISATION (iii) Construction of Parapet 300 meters @Rs.150/M (Stone Pitching)
OF DUMPS (within Walls/ Retaining wall at toe of Rs.45,000
mining lease) dumps (in mtr)/SG stack
(iv) Construction of Check Nil Nil
Dams along slope of valise
etc.
(v) Construction of Settling Garland drain - Garland drain –
Ponds (Garland drain etc.) 300.00 m Rs.60,000/-

(vi) De-silting of settling Nil Nil

ponds, channels
(vii) Afforestation on dumps Nil Nil
(viii) Others (Please specify) Nil Nil
(C) (i) Afforestation (Green belt 1000 no. @Rs.10/- per tree including
REHABILITATION building) sapling, digging and planting
– Rs.10,000/-
OF BARREND Water per day 1 trips/Day for
AREA WITHIN 250 days - Rs. 27,000/-
LEASE
Maintenance -Rs. 28,500/-
Total-Rs 65,500/-
(ii) Others (Please specify)
(D) (i) Ambient Air Quality Quarterly
ENVIRONMENTAL monitoring –
MONITORING Rs.1,25,000/-
(Core zone & Buffer (ii) Water Quality (Surface Quarterly
zone separately) and Ground water monitoring
Rs.1,25,000/-
(iii) Noise Level Survey Quarterly monitoring
Rs.50,000/-
(iv) Ground Vibration Once in a year
Rs.50,000/-
(v) Others (Please specify)
Total Rs.5.205 lakhs

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARLY PROPOSAL FOR ITEM NO. 6 & 7 OF PMCP FOR 2016-17 (4th YEAR) FOR KRISHNA MINES IN
RAMAYANPATTI OVER AN EXTENT 31.092 HA.
Items Details Area (Ha.) Area In Expenditure(Rs In Lakhs)
Prop Actual In Ha
I YEAR
(A) RECLAMATION (i) Backfilling Nil Nil Nil
& REHABILITATION (ii) Afforestation on the Nil Nil Nil
OF MINED OUT : backfilled area
LAND/AREA (iii) Others (please specify) Nil Nil Nil
e.g. Afforestation on
exhausted benches.
(iv) Pisciculture
(v) Converting into water Nil Nil Nil
reservoir
(vi) Picnic Spot Nil Nil Nil
(B) STABILIZATION (i) Terracing
& (ii) Pitching
REHABILISATION (iii) Construction of Parapet 300 meters @Rs.150/M (Stone Pitching)
OF DUMPS (within Walls/ Retaining wall at toe of Rs.45,000
mining lease) dumps (in mtr)/SG stack
(iv) Construction of Check Nil Nil
Dams along slope of valise
(v)
etc. Construction of Settling Garland Garland drain –
Ponds (Garland drain etc.) drain - Rs.60,000/-
(vi) De-silting of settling Nil m
300.00 Nil
ponds, channels
(vii) Afforestation on dumps Nil Nil
(viii) Others (Please specify) Nil Nil
(C) (i) Afforestation (Green belt 1000 no. @Rs.10/- per tree including
REHABILITATION building) sapling, digging and planting –
Rs.10,000/-
OF BARREND Water per day 1 trips/Day for
AREA WITHIN 250 days - Rs. 27,000/-
LEASE
Maintenance -Rs. 28,500/-
Total-Rs 65,500/-
(ii) Others (Please specify)
(D) (i) Ambient Air Quality Quarterly monitoring
ENVIRONMENTAL – Rs.1,25,000/-
MONITORING (ii) Water Quality (Surface Quarterly monitoring
(Core zone & Buffer and Ground water Rs.1,25,000/-
zone separately) (iii) Noise Level Survey Quarterly monitoring
Rs.50,000/-
(iv) Ground Vibration Once in a year
Rs.50,000/-
(v) Others (Please specify)
Total Rs.5.205 lakhs

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

YEARLY PROPOSAL FOR ITEM NO. 6 & 7 OF PMCP FOR 2017 -18(5th YEAR) FOR KRISHNA MINES IN
RAMAYANPATTI OVER AN EXTENT 31.092 HA.
Items Details Area (Ha.) Area In Expenditure(Rs In Lakhs)
Prop Actual In Ha
I YEAR
(A) RECLAMATION (i) Backfilling Nil Nil Nil
& REHABILITATION (ii) Afforestation on the Nil Nil Nil
OF MINED OUT : backfilled area
LAND/AREA (iii) Others (please specify) Nil Nil Nil
e.g. Afforestation on
exhausted benches.
(iv) Pisciculture
(v) Converting into water Nil Nil Nil
reservoir
(vi) Picnic Spot Nil Nil Nil
(B) STABILIZATION (i) Terracing
& (ii) Pitching
REHABILISATION (iii) Construction of Parapet 300 mtrs @Rs.150/M (Stone Pitching)
OF DUMPS (within Walls/ Retaining wall at toe of Rs.45,000
mining lease) dumps (in mtr)/SG stack
(iv) Construction of Check Nil Nil
Dams along slope of valise
(v)
etc. Construction of Settling Garland Garland drain –
Ponds (Garland drain etc.) drain - Rs.60,000/-
(vi) De-silting of settling 300.00
Nil m Nil
ponds, channels
(vii) Afforestation on dumps Nil Nil
(viii) Others (Please specify) Nil Nil
(C) (i) Afforestation (Green belt 1250 no. @Rs.10/- per tree including
REHABILITATION building) sapling, digging and planting –
Rs.12,500/-
OF BARREND Water per day 1 trips/Day for
AREA WITHIN 250 days - Rs. 27,000/-
LEASE
Maintenance -Rs. 28,500/-
Total-Rs 68,000/-
(ii) Others (Please specify)
(D) (i) Ambient Air Quality Quarterly monitoring
ENVIRONMENTAL – Rs.1,25,000/-
MONITORING (ii) Water Quality (Surface Quarterly monitoring
(Core zone & Buffer and Ground water Rs.1,25,000/-
zone separately) (iii) Noise Level Survey Quarterly monitoring
Rs.50,000/-
(iv) Ground Vibration Once in a year
Rs.50,000/-
(v) Others (Please specify)
Total Rs.5.23 lakhs

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

8.0 Financial Assurance:

The financial assurance was calculated for the entire Mining lease area of 31.092
Ha. As the entire area is put to use for mining and its allied activities such as area under
mining, area for dumping, area for Green belt, and area for haul road and allied services.
The financial assurance is calculated as per the table given below in Table No - 46
Sl Head Area put on Additional Total Area considered as Net area
No use at start requirement (Ha) fully reclaimed & considered for
of plan (Ha) during plan period rehabilitated (Ha) calculation (Ha)
(Ha)

1 Area of excavation 20.71 2.60 23.310 0.000 23.310

2 Storage of top soil Nil Nil Nil 0.000 Nil

3 Overburden/dump 3.01 0.104 3.114 0.000 3.114

4 Mineral Storage/Sub Nil 2.425 0.000 2.425

grade 2.425

5 Infrastructure(Workshop/ 0.33 0.33 0.000 0.33

Building) Nil

6 Roads 0.17 Nil 0.17 0.000 0.17

7 Railways Nil Nil Nil 0.000 Nil

8 Green belt 1.367 0.062 1.429 0.000 1.429

9 Tailing pond Nil Nil Nil 0.000 Nil

10 Effluent treatment plant Nil Nil Nil 0.000 Nil

11 Mineral Separation plant Nil Nil Nil 0.000 Nil

12 Town ship area Nil Nil Nil 0.000 Nil

13 Others Nil 0.314 0.314 0.000 0.314

14 Area utilized 25.587 0.000

5.505 31.092 31.092

15 Area which will remain 5.505 0.000

(Untouched) Nil 0 0

Total 31.092 31.092 0.000 31.092

Nil

GRAND TOTAL A B C=A+B D E=C-D

The proposed plantation area is considered for assessment for financial assurance. In fact
the financial assurance is considered for the entire lease area as the same will be put to use
at the end of the scheme period.

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 Mining Plan of Ramayanpatti limestone mines (31.092 Ha) Krishna Mines

As per Mineral Conservation and Development (Amendment) Rules – 2003 under

Rule 23 (F). The lessee will have to provide financial assurance of Rs.25,000/Ha for the area
utilized since the area falls in A-Category mine. The financial assurance for 31.092 Ha works
out to Rs.777300/ (Rupees Seven Lakhs seventy seven thousand three hundred only).
Copy of Bank Guarantee is enclosed vide Annexure No -17

Date: 22.07.2013 M.S.Jayaram

Place: Chennai RQP/MAS/173/2003/A

139