Water harvesting Sources Area Runoff coeff 100000

Roof Surfaces 100 0.85 90000

Hardscape areas 150 0.85 80000
Softscape areas 400 0 70000
60000
50000
Effective catchment area 212.5 40000
30000
Muncipality water supply (l/day) 800 20000
Storage size (l) 90,000 10000
0
1 2 3 4 5 6 7 8 9 10 11 12
Water consumption point Quantity Liters/day
Occupants : {People x l/person} 8 120
Irrigation (max) : {m2 x l/m2} 400 1.7 Storage (l) Total fresh water demand (l)
Cooling tower (max) : {Ton x l/Ton} 8.57 64

Muncipality
Days in Rainfall Effective Harvested water
Month month (mm) rain (mm) water (l) supply (l)
July 31 200 195 41523 24800
August 31 200 195 41501 24800
September 30 123 118 24969 24000
October 31 19 14 2869 24800
November 30 3 0 0 24000
December 31 10 5 1063 24800
January 31 23 18 3761 24800
February 28 20 15 3209 22600
March 31 15 10 2019 24800
April 30 10 5 1084 24000
May 31 15 10 2125 24800
June 30 68 63 13366 24000
137488 292200
 Unused Grey water Harvested Rainwater
12000 45000
40000
10000
35000
8000 30000
25000
6000
20000
4000 15000
10000
6 7 8 9 10 11 12 2000
5000
0 0

July
July

January
February

May

January
February

May
March
December
March
September
October
November
December

September
October
November
August
June

June
August

April

April
otal fresh water demand (l)

Cooling
Cooling tower
Grey water Irrigation Irrigation Irrigation Unused tower water
Primary generated seasonal Water fresh water grey water Ussage demand
demand (l) (l) factor (%) demand (l) demand (l) (l) factor (%) (l)
29760 14880 20% 4216 0 10664 0% 0
29760 14880 20% 4216 0 10664 0% 0
28800 14400 20% 4080 0 10320 0% 0
29760 14880 50% 10540 0 4340 0% 0
28800 14400 50% 10200 0 4200 0% 0
29760 14880 50% 10540 0 4340 0% 0
29760 14880 100% 21080 6200 0 0% 0
27120 13560 100% 19210 5650 0 0% 0
29760 14880 100% 21080 6200 0 50% 8501
28800 14400 100% 20400 6000 0 100% 16454
29760 14880 50% 10540 0 4340 100% 17003
28800 14400 50% 10200 0 4200 50% 8227
 Rainwater
January
February

May
March
December

June
April

Total
fresh
water
demand
(l) Storage (l)
29760 36563
29760 73104
28800 90000
29760 87909
28800 83109
29760 79211
35960 71813
32770 64851
44461 47209
51254 21038
46763 1200
37027 1539
Rainwater Runoff Effective
harvesting Area m2 coeffecie catchment Per Capita daily Number of
surfaces nt area m2 consumption occupants
170
Roof Surfaces 200 0.85 135 8

Hardscape area 400 0.70 280

60 Occupant's Percent
Softscape areas 200 0.30 Activity usage

0
Other Bathing 29.0%

0 Washing 19.6%

Total Effective catchment area 510 Drinking 4%

Cooking 3%
Toilet 17.0%
Cleaning house 8.0%
Washing Utensils 16.4%
Others 3.20%

Rainfall Effective Harvested

Months Mo Generated
(mm) rain (mm) rainwater (l)
nth Days in month black water
July 200 195 99654 Jul 31 8504
August 200 195 99603 Aug 31 8504
September 123 118 59925 Sep 30 8230
October 19 14 6885 Oct 31 8504
November 3 0 0 Nov 30 8230
December 10 5 2550 Dec 31 8504
January 23 18 9027 Jan 31 8504
February 20 15 7701 Feb 28 7750
March 15 10 4845 Mar 31 8504
April 10 5 2601 Apr 30 8230
May 15 10 5100 May 31 8504
June 68 63 32079 Jun 30 8230
329970
80000 35000 60000
70000 30000 50000
60000
25000 40000
50000
20000 30000
40000
15000 20000
30000

20000
10000 10000

10000 5000 0
1 2 3 4
0 0
yr y h il y ne
Cooling ar demand a(l)rc
ua tower water
r
Ap demandM
Irrigation a
Ju Harvested rainwater (l) Filtere
an ru
JOccupant eb
demand
F
M Harvested rainwater (l)

70000 80000
70000 Cooling tow
60000
Irrigation d
50000 60000
Occupant d
40000 50000

30000 40000

20000 30000

10000 20000

0 10000
ry y ch il ay ne
ua ar
uHarvested Apr
ar rainwater
M(l) Ju Total water demand (l) 0
n br M
Ja Fe Ja
n
Fe
b ar Ap
r
M
Total daily Grey water filter
consumption efficiency

1080 75%

black Water use Quantity

Quantity Grey water water

Occupants : {People x l/person} 8

313.2 100% 0%

211.68 100% 0% Irrigation (max) : {m2 x l/m2} 400

Cooling tower (max) : {Ton x
42.12 0% 100% 8.57
l/Ton}
31.32 0% 100% Other
183.6 0% 100%
86.4 100% 0%
177.12 100% 0%
34.56 50% 50%

Irrigation
Generated Filtered grey seasonal
Grey water water Month Days in month Occupant demand factor (%)
24976 18732.06 July 31 33480 20%
24976 18732.06 August 31 33480 20%
24170 18127.8 Septemb 30 32400 20%
24976 18732.06 October 31 33480 50%
24170 18127.8 Novembe 30 32400 50%
24976 18732.06 Decembe 31 33480 50%
24976 18732.06 January 31 33480 100%
22760 17070.345 Februar 28 30510 100%
24976 18732.06 March 31 33480 100%
24170 18127.8 April 30 32400 100%
24976 18732.06 May 31 33480 50%
24170 18127.8 June 30 32400 50%
 70000
60000
50000
40000
30000
20000
10000
2 3 4 5 6 0

vested rainwater (l) Filtered grey water Cooling tower water demand (l) Irrigation demand

Cooling tower water demand (l)

Irrigation demand
Occupant demand

Fe
b ar Ap
r ay Ju
n
M M
Liters/day

135

1.7

64

NOTE: Adequate water dema

Cooling Cooling tower
Irrigation tower Usage water Total water
demand factor (%) demand (l) demand (l)
4216 0% 0 37696
4216 0% 0 37696
4080 0% 0 36480
10540 0% 0 44020
10200 0% 0 42600
10540 0% 0 44020
21080 0% 0 54560 NOTE: Cooling tower water demand is vari
19210 0% 0 49720 Harvested ra
21080 50% 8501 63061 Total water
20400 100% 16454 69254
10540 100% 17003 61023
10200 50% 8227 50827
Irrigation demand Occupant demand
NOTE: Adequate water demand from occupants can be referred from NBC or other appropriate guidelines.

ng tower water demand is variable, it depends upon season and usuage.

61353 17.6%
348446

85%

15%
Harvested rainwater (l) Total water demand (l)
 Domestic Use
Use LPD/Head
Number of people
Total LPD

Water use Quantity Quantity End Use

Domestic Use (LPD/ Head) 8 135 Bathing

Irrigation (max) : {m x l/m }
2 2
400 1.7 Washing
Cooling tower (max) : {Ton x
8.57 64 Cleaning house
l/Ton}
Other Washing Utensils
Others
Drinking
Cooking
Toilet Flushing
Total
estic Use Cooling Use Irrigation Use
95 L/Tr 5.5 L/m2 1
8 Tr per Day (peak) 150 Area m 2
400
760 Max LPD 825 Max LPD 400

Percen Use in Greywater Blackwater

t use LPD in LPD in LPD
30% 228 228
20% 152 152
8% 61 61
16% 122 122
2% 15 8 8
4% 30 30
3% 23 23
17% 129 129
760 570 190

80,000

70,000

60,000

50,000
80,000

70,000

60,000

50,000

40,000

30,000

20,000

10,000

-
Jan Feb
Total Consumption (
 CONSUMPTION WATER SOURCE
Days in Domestic Cooling Cooling Irrigation Irrigation Total Municipal
Month
month Use (L) Use % Use (L) Use % Use (L) Consumption (L) Water (L)

Jul 31 23,560 90% 23,018 5% 1,279 47,856

Aug 31 23,560 80% 20,460 5% 1,279 45,299
Sep 30 22,800 50% 12,375 50% 12,375 47,550
Oct 31 23,560 75% 19,181 30% 7,673 50,414
Nov 30 22,800 20% 4,950 90% 22,275 50,025
Dec 31 23,560 0% - 90% 23,018 46,578
Jan 31 23,560 0% - 90% 23,018 46,578 20,000
Feb 28 21,470 20% 4,661 90% 20,976 47,107 20,000
Mar 31 23,560 50% 12,788 90% 23,018 59,365 20,000
Apr 30 22,800 90% 22,275 90% 22,275 67,350 20,000
May 31 23,560 100% 25,575 90% 23,018 72,153 20,000
Jun 30 22,800 90% 22,275 90% 22,275 67,350 10,000
Total 359,902 110,000

Water Balance Water Consumption

80,000 80,000

70,000 70,000

60,000 60,000

50,000 50,000
 Water Balance Water Consumption
80,000 80,000

70,000 70,000

60,000 60,000

50,000 50,000

40,000 40,000

30,000 30,000

20,000 20,000

10,000 10,000

- -
Jan Feb Mar Apr May Jun Jan Feb Mar Apr M
Total Consumption (L) Harvested Rainwater (L) Greywater (L) Cooling Use (L) Irrigation Use (L) Dom
 WATER SOURCES
Greywater Blackwater
Rainwater (L) (L) Total Stored

99654 17,670 5,890 69468

99603 17,670 5,890 141442

59925 17,100 5,700 170917

6885 17,670 5,890 145058

0 17,100 5,700 112133

2550 17,670 5,890 85776

9027 17,670 5,890 85895

7701 16,103 5,368 82592

4845 17,670 5,890 65742

2601 17,100 5,700 38093

5100 17,670 5,890 8710

32079 17,100 5,700 539

61,353 103,313 73,381

Water Consumption
 Water Consumption

Feb Mar Apr May Jun

Use (L) Irrigation Use (L) Domestic Use (L)