A AMBANGAN ENGINEERING — LEIKA JV SKIM JAMINAN AIR MENTAH, SELANGOR PAKEJ C - KERJA-KERJA PEMBINAAN PELENCONGAN SUNGAI, PEMBEKALAN, PEMASANGAN, PENGUJIAN DAN PENTAULIAHAN DAN KERJA-KERJA LAIN BERKAITAN DI MUKA SAUK LOJI RAWATAN AIR SSP1, 2 & 3, BESTARI JAYA, KUALA SELANGOR. METHOD STATEMENT FOR TURFING REF. NO: SJAM-C/SMHB/036(SJAM-C/MS/02) CONTRACT NO: 1863/86.3 Document Review Status CODE A: APPROVED (Work May Proceed) CODE B: APPROVED WITH COMMENT (Work May Proceed Subject to Incorporation of Comments Indicated) CODE C: RESUBMIT (Physical Work Cannot Proceed) Rev] Date | Description AELIV SMHB Prepared by Review and Check ‘Approved by 0 31322 Nur Syakirah [~ Roshi [Lai WaiKee | Nurhana | Ir. Hasrul Bin Damia HSO Project Project Ibrahim Engineer__| Manager Director CRESKIM JAMINAN AIR MENTAH, SELANGOR (SJAM) PAKEJ C- KERJA-KERJA PEMBINAAN PELENCONGAN SUNGA, PEMBEKALAN, PEMASANGAN, PENGUJIAN DAN PENTAULIAHAN DAN KERIA-KERJA LAIN BERKAITAN DI MUKA SAUK LOJI RAWATAN AIR SSP4, 2 & 3, BESTARI JAVA, KUALA SELANGOR. Document Ref: SIAM-C/SMHB/036 Method Statement for Turfing Revision: 01 Effective Date:31/3/2022 Table of Contents 1.0 INTRODUCTION... 2.0 REFERENCES 3.0 MATERIAL... 4.0 PLANT AND MACHINERY. 5.0 MANPOWER... 6.0 CONSTRUCTION PROCESS. 6.1 Preparation, 6.2 Type of grass used for turfing 6.3 Work Methodology 7.0 ENVIRONMENTAL, SAFETY & HEALTH REQUIREMENT 8.0 QUALITY ASSURANCE 9.0 APPENDICES mmm aan RR ww ww‘KIM JAMINAN AIR MENTAH, SELANGOR (SIAM) PENGUJIAN DAN PENTAULIAHAN DAN KERJA-KERIA LAIN BERKAITAN DI MUKA SAUK LOJI RAWATAN AIR SSP1, 2 & 3, BESTARI JAVA, KUALA SELANGOR. Document Ref: SJAM-C/SMHB/036__ Method Statement for Turfing Revision: 01 Effective Date:31/3/2022 1.0 2.0 3.0 4.0 INTRODUCTION This is a method statement outlines the procedure of the turfing, The purpose of this method statement is: «To protect the slope against erosion by the surface run off + To reduce infiltration © Toenhance slope landscape with environmentally friendly look REFERENCES ‘The works shall be caried out accordance with the following document: 1. Civil Works Specifications, part 2.2 Earthwork, clause 2.2.40 Turfing MATERIAL Material lst shall be according to the needs off work, but shall not limit to the follo 1. Turf from approved sources (Cow grass; Axonopus Compressus) PLANT AND MACHINERY Plant and machineries used on turfing works are Lorry Backhoe ‘Wood (150mm long) Grass Cutting Machine Wheelbarrow Hammer oe kee ‘The machineries used is based on the availability of the machine on site.‘SKIM JAMINAN AIR MENTAH, SELANGOR (SJAM) a A PAKEs C- KERJA-KERIA PEMBINAAN PELENCONGAN SUNGAI, PEMBEKALAN, PEMASANGAN, PENGUJIAN DAN PENTAULIAHAN DAN KERIA-KERJA LAIN BERKAITAN DI MUKA SAUK LOSI RAWATAN AIR SSP1, 2 & 3, BESTARIJAYA, KUALA SELANGOR, Document Ref: SJAM-C/SMHB/036 Method Statement for Turfing Revision: 01 Effective Date:31/3/2022 5.0 MANPOWER T Operation Site Management Supervisor Site Engineer General Worker Safety Officer 7 Site Safety Supervisor 6.0 CONSTRUCTION PROCESS 6.1 Preparation Before start turfing, the main criteria shall be look into: a) Top soil, Dried Organic Sludge © The soil shall have PH 6 to 7 + The soil used shall be fertile, friable and loamy character # The topsoil shall contain a normal amount of decomposed organic matter and shall be free of heavy clay or coarse sand, stones, lumps and other vegetation, roots, sticks and foreign materials. All the soil shall be of the same structure and composition throughout Soil shall not be delivered, handled or placed in muddy condition. The depth after spreading trimming shall be 75mm unless otherwise directed, measured normal to surfall. b) Top soil, Dried Organic Sludge/Humus * Dried Organic or pure organic humus may apply together with top soil for turfing ©) Type of grass © Used a good quality of cow grass and it shall be suitable for existing ground condition 4) Planting material ‘© The turves used shall be green, healthy and vigorous ‘©The grass turf shall be cut neatly in squares (200mmx 200mm) with thickness not less than SOmm ‘© Each of sod shall be free form Mimosa pudica, Imprerata cylindries or other weeds, © Shrubs and trees shall be free of disease, insect eggs, larva or pest, root bound and ‘© recently potted.‘SKIM JAMINAN AIR MENTAH, SELANGOR (SIAM) PAKEJ C- KERJA-KERJA PEMBINAAN PELENCONGAN SUNGAI, PEMBEKALAN, PEMASANGAN, PENGUIIAN DAN PENTAULIAHAN DAN KERIA-KERJA LAIN BERKAITAN DI MUKA SAUK LOJI RAWATAN AIR SSP1, 2 & 3, BESTARI JAYA, KUALA SELANGOR. Document Ref: SJAM-C/SMHB/036 Method Statement for Turfing Revision: 01 Effective Date: 1/3/2022 e) Preparation ground to be turf ‘+ Clean all the ground area to be turfed from loose stones, wood rubbish and other desirable excavated material shall be removed and deposited at dumping area. © Trimmed and leveled the ground. ‘© Provide a good layer of quality topsoil with containing large percentage of humus and free from unsuitable materials in average thickness of 150mm and lightly watered, '* All weeds like Mimosa plants and other objectional weeds be removed by pulling the roots ‘+All cut grass, pulled out weeds, together with rubbish, stones and other extraneous material shall be collected, transported and deposited, in approved dumping ground. immediately done after each cutting 4) Fertilizer * Plants require nutrients to grow and develop, Poor feeding and low nutrient levels will result in poor or diminished growth and low food. Nitrogen, phosphorus and potassium are the basic in organic soil. ‘© The fertilizers used shall bear the manufacturer's guarantee statement of analysis and shall meet the requirement in available form: Analysis Type | N 205 | K20 a 10% | 30% | 10% 8 15% | 15% | 15%‘KIM JAMINAN AIR MENTAH, SELANGOR (SIAM) AL A PAKEJ C - KERJA-KERJA PEMBINAAN PELENCONGAN SUNGA\, PEMBEKALAN, PEMASANGAN, PENGUJIAN DAN PENTAULIAHAN DAN KERJA-KERJA LAIN BERKAITAN DI MUKA SAUK LOSI RAWATAN AIR SSP1, 2 & 3, BESTARI JAYA, KUALA SELANGOR. Document Ref: SJAM-C/SMHB/036 Method Statement for Turfing Revision: 01 Effective Date:31/3/2022 6.2 Type of grass used for turfing Cow grass (Axonopus Compressus) ‘The Axonopus compressus more commonly known as broadleaf carpet grass can be referenced under the symbol AXCO. It has stouter culms and stolons, wider leaves and longer spikeletes which are more acute. Its leaves are 9-12 mm wide and it forms a dense mat over the surface of the ground, seldom reaching a height of more than 15cm. Grass shall be free from momisa, weeds or any other objectionable plants. Cow grass is most common type grass used in Malaysia for turfing. itis excellent capability of erosion prevention together with high endurance is perfect for Malaysia climate through drought or rain season. 6.3 Work Methodology 1. Identify location to be turf, prepare and measured the area so that it easy to estimate how much grass to be used, 2. Clean the ground from debris, removed any dead roots, rocks and existing patches of dying or dead plant lft. 3. The imported topsoil from outside used at top of layer to give a good condition the grass to grow. 4. Two methods of turfing used which is “close turfing” (grass plant without gap in between each other) and “spot turfing” (grass plant with gap in between each other). 5. Close turfing is applied on the slope, the grass shall be put at the ground, the grass planted near between one another with no gaps to cover the ground. Turves shall be hold in position by wooden pegs driven through the turf sods into the ground. 6. Provide a good layer to be turf with average thickness 150mm and light watered. 7. Spot turfing is applying on the flat ground, the grass (200mm x 200mmx 50mm) shall be put at the ground, gap between each grass is around SOmm. 8. Lastly, after complete turfing fertilizer shall be spurted at surface of grass.‘SKIM JAMINAN AIR MENTAH, SELANGOR (SJAM) Ah A PAKE) C- KERIA-KERIA PEMBINAAN PELENCONGAN SUNGAI, PEMBEKALAN, PEMASANGAN, teen PENGUJIAN DAN PENTAULIAHAN DAN KERJA-KERJA LAIN BERKAITAN DI MUKA SAUK LOJI RAWATAN AIR SSP1, 2 & 3, BESTARIJAYA, KUALA SELANGOR. | Document Ref: SIAM-C/SMHB/036___ Method Statement for Turfing | Revision: 01 Effective Date:31/3/2022 Maintenance Proper Watering © Regularly watering the turfing surface to give the ground moist. © At least watering should be repeated at least one a day until the roots establish. ‘© Ahotter weather more water will be required. Replace © Any turf, shrub and tree not vigorous condition at the time shall be replaced. ‘* How often you fertilize also depends on the intensity of maintenance. * Low maintenance grass requires less fertilization (rainy season - / hotter season) ‘© High maintenance grass is fertilized on a more precision application during the most active growing months. Cutting © Grass cutting play the important part for the maintenance commitment. The grass shall be cut regularly to not higher than 20mm above the ground until the end of the defect liability period.‘SKIM JAMINAN AIR MENTAH, SELANGOR (SIAM) ; A PAKEI C-KERIA-KERIA PEMBINAAN PELENCONGAN SUNGAI, PEMBEKALAN, PEMASANGAN, PENGUJIAN DAN PENTAULIAHAN DAN KERJA-KERIA LAIN BERKAITAN DI MUKA SAUK LOJI RAWATAN AIR SSP1, 2 & 3, BESTARI JAYA, KUALA SELANGOR. Document Ref: SIAM-C/SMHB/036 Method Statement for Turfing Revision: O1 Effective Date:31/3/2022 7.0 8.0 9.0 ENVIRONMENTAL, SAFETY & HEALTH REQUIREMENT Safety ‘The Contractor always makes sure all the works carried out is complying with safety requirements, 1. Always make sure the worker wearing PPE such as safety boots, goggles and safety vest when they are operating grass cutting machines 2. Signboard must be placed to warn public that turfing work is in the progress. Environment 1, Take extra precautions on slopes - Applying fertilizers on slopes can lead to the washing away of nutrients. This is how most of these nutrients wind up into our surface waters. 2. Take precautions to control your runoff from property. Do not allow fertilizer to drift onto the streets because this fertilizer will certainly make its way into the storm drains. 3. Store fertilizer materials properly - Keep fertilizer sources from being washed away by rains. Keep them under a shelter and off of the ground so the nutrients want get caught in rain water runoff. QUALITY ASSURANCE The following document would form part of quality requirement: 1. Inspection and test plan 2. Request for inspection 3. Inspection Checklist APPENDICES 1. Form & Checklist 2. Environmental Risk Assessment 3. HIRADCAPPENDICES