[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-662889-105":59,"doc-detail-662889-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","appendix4-3-drainage-drawings-pollution-prevention-notes","APPENDIX4-3 - DRAINAGE DRAWINGS - Pollution Prevention Notes","","Drainage drawings and pollution prevention notes specify how site works should be managed to protect surface water and groundwater from siltation, erosion, and pollution. The notes require controlling discharges from dewatering, excavations, stockpiles, roads, and wheel washing, including use of silt traps and settlement treatment prior to any overland discharge. They also set concrete works, refuelling, spill response, and construction drainage requirements, and list avoidance, source, in-line controls, and water treatment measures using SUDS and sediment management.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/appendix4-3-drainage-drawings-pollution-prevention-notes/662889/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/appendix4-3-drainage-drawings-pollution-prevention-notes/662889.png","ImageObject",300,407,{"name":92,"@type":93},"hdkawk","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What measures are required to prevent silt and erosion from construction activities?","Question",{"text":112,"@type":113},"Silt levels in runoff must be monitored and managed using silt fences, straw bales, check dams, and suitable erosion/velocity control measures. Drainage and discharge controls should be in place at all times to prevent conveyance of significant silt volumes to receiving watercourses.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How should pumped or discharging water be handled to avoid pollution?",{"text":117,"@type":113},"Water containing silt must not be pumped directly to natural watercourses. Discharges should be made over open ground or into existing field drains with silt traps placed at a minimum distance from the nearest watercourse, and pumped water should be directed into track side ditches and treated in settlement ponds and vegetation swales prior to overland discharge.",{"name":119,"@type":110,"acceptedAnswer":120},"What actions should be followed if water pollution is identified?",{"text":121,"@type":113},"Stop-work in the immediate area and identify the pollution source. Contain the source using suitable bunding methods, temporarily divert natural watercourses around the source, and notify relevant authorities immediately to protect fisheries and other sensitive areas.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},662889,1793223075,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":29,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":44,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":143},3985747859855,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","O>  \nAPPENDIX4-3  \nDRAINAGE DRAWINGS  \nPOLLUTION PREVENTION NOTES:  \n1.  SITE MANAGEMENT PROPOSALS ARE INTENDED TO ENSURE PROTECTIONAGAINST SURFACE WATER AND GROUNDWATER POLLUTION,SILTATION ANDEROSION.  \n2.  SUITABLE DRAINAGE CONTROL MEASURES SHOULD BE IN PLACE AT ALL TIMESTO PREVENT CONVEYANCE OF SIGNIFICANT VOLUMES OF SILT TO OFF SITERECEIVING WATERCOURSES.  \n3.SILTY WATER CAN ARISE FROM DEWATERING EXCAVATIONS,EROSION OFEXPOSED/DISTURBED GROUND,TEMPORARY STOCKPILES,PLANT AND WHEELWASH,SITE ROADS/TRACKS,AND DISTURBANCE OF EXISTING FIELD DRAINSAND DITCHES.  \nDISCHARGES  \n4.WATER CONTAINING SILT WILL NOT BE PUMPED DIRECTLY TO ANY NATURALWATERCOURSE.ALL DISCHARGES TO BE MADE OVER OPEN GROUND OR INTOEXISTING FIELD DRAINS WITH SILT TRAP AT A MINIMUM OF 20M FROMNEAREST WATERCOURSE UNLESS OTHERWISE STATED.  \n5.No EXCAVATED MATERIAL IS TO BE STORED WITHIN ANY SURFACE WATERBUFFER ZONE.  \n6.PUMPED WATER WILL BE DIRECTED INTO TRACK SIDE DITCHES AND TREATEDIN SETTLEMENT PONDS AND VEGETATION SWALES PRIOR TO OVERLANDDISCHARGE.  \n7.PUMPING OF CLEAN WATER FROM EXCAVATIONS /OR OVER-PUMPING INDRAINS/DITCHES/STREAMS WILL BE COMPLETED IN A MANNER THAT DOESNOT CAUSE SCOUR OR EROSION AT THE POINT OF RELEASE/DISCHARGE.THISWILL BE DONE BY REDUCING THE FLOW VELOCITIES OR BY USE OF SPLASHPLATES,AND OTHER SIMILAR DISCHARGE CONTROLS.  \n8.VEGETATION WILL NOT BE STRIPPED FROM EXISTING DRAINS/DITCHESUNLESS ABSOLUTELY NECESSARY.ExCAVATIONS  \n9.WHERE DEEP EXCAVATIONS ARE PROPOSED CUT-0FF DRAINS WILL BE USE TOREDUCE THE AMOUNT OF SURFACE WATER ENTERING THE EXCAVATION.THISWILL BE THE CASE AROUND TURBINE BASE EXCAVATIONS.ExPOSED GROUND &STOCKPILES  \n10.THE AMOUNT OF EXPOSED GROUND AND TEMPORARY STOCKPILES OPEN ATANY ONE TIME WILL BE MINIMISED,AS FAR AS PRACTICABLE.SITE TRACKS  \nII.USE OF TRACK SIDE SWALES WITH CHECK DAMS,AND/OR FILTRATION CHECKDAMS WILL REDUCE SILT IN RUNOFF WATER AS REQUIRED.  \n12.CHECK DAMS TO BE INSPECTED AND CLEANED REGULARLY.REFUELING  \n13.REFUELLING OF MOBILE PLANT WILL BE COMPLETED IN DESIGNATEDREFUELING AREAS ONLY,PREFERABLY ON AN IMPERMEABLE SURFACE ANDAWAY FROM FIELD DRAINS /DITCHES AND WATERCOURSES /WATERBODIES.  \n14.SPILL KITS AND DRIP TRAYS WILL BE AVAILABLE ON SITE FOR USE ASREQUIRED.  \nCONCRETE  \n15.CARE WILL BE TAKEN WHEN COMPLETING CONCRETE WORKS ON SITE TOENSURE NO DISCHARGES ocCUR.  \n16.CONCRETE WASH WATER,AND WASTE CONCRETE WILL BE MANAGEDAPPROPRIATELY ON SITE.  \nIF WATER POLLUTION IS IDENTIFIED THE FOLLOWINGSTEPS wOULD BE ADHERED TO:  \nSTOP-WoRK IN THE IMMEDIATE AREA SHOULD BE STOPPED AND THE SOURCEOF THE POLLUTION IDENTIFIED.  \nCONTAIN -THE SOURCE OF THE POLLUTION SHOULD BE BUNDED USING ASUITABLE METHOD.NATURAL WATERCOURSES SHOULD BE TEMPORARILY DIVERTEDAROUND THE SOURCE OF POLLUTION.  \nNOTIFY-THE RELEVANT AUTHORITIES(SITE MANAGER /FISHERIES /NPwS/LoCAL AUTHORITY ETC.)SHOULD BE NOTIFIED IMMEDIATELY TO ENSURE THATMEASURES CAN BE IMPLEMENTED DOWNSTREAM TO PROTECT FISHERIES AND OTHERSENSITIVE AREAS.DRAINAGE NOTES:  \nI.   ROADWAY SURFACING DESIGN AND CONSTRUCTION TO ENGINEER'sSPECIFICATION(1.E.BY OTHERS).  \n2.  SPARE STRAW BALES/SILT FENCING/OR SIMILAR,TO BE STORED ONSITE.THE LEVEL OF SILT IN RUNOFF DURING CONSTRUCTION IS TO BEMONITORED VISUALLY AND EXCESSIVE SILT LEVELS IN ANY AREA TO BETEMPORARILY MANAGED BY PLACING SILT FENCES,STRAW BALES /ORSIMILAR OR ADDITIONAL CHECK DAMS AT THE PROBLEM AREAS.MOBILESILTBUSTER SYSTEM TO BE AVAILABLE ON-SITE FOR USE AS REQUIRED ALSO.  \n3.  SUDS SYSTEM TO BE CONSTRUCTED PRIOR TO,OR AT THE SAME TIMEAS THE ACCESS TRACKS.INTERIM MEASURES SUCH AS THE PLACEMENT OFSTRAW BALES/SILT FENCING/OR SIMILAR APPROVED METHOD OR ADDITIONALCHECK DAMS AND SILT FENCES TO BE EMPLOYED IN ALL INSTANCES WHEREWORK CARRIED OUT TO CONSTRUCT THE ACCESS TRACKS IS LIKELY TO CAUSEADVERSE ENVIRONMENTAL EFFECTS THROUGH INCREASED SILT LOADINGSBEING GENERATED DURING THE CONSTRUCTION PHASE.  \n4.  SUITABLE PREVENTION MEASURES SHOULD BE IN PLACE AT ALL TIMESTO PREVENT THE CONVEYANCE OF SIGNIFICANT VOLUMES OF SILT TORECEIVING WAT","cbCaihgvo5ffPbsk","https://ap.wps.com/l/cbCaihgvo5ffPbsk","pdf",13721067,"English","# Pollution Prevention Notes\n## Discharges and Site Management\n## Excavations, Exposed Ground & Stockpiles\n## Refuelling and Concrete Controls\n## Water Pollution Response Steps\n# Drainage Notes\n## Roadway Surfaces and Construction Controls\n## Interceptor Swales and Cross Drains\n# Mitigation / Drainage Control Methods (SUDS)","[{\"question\":\"What measures are required to prevent silt and erosion from construction activities?\",\"answer\":\"Silt levels in runoff must be monitored and managed using silt fences, straw bales, check dams, and suitable erosion/velocity control measures. Drainage and discharge controls should be in place at all times to prevent conveyance of significant silt volumes to receiving watercourses.\"},{\"question\":\"How should pumped or discharging water be handled to avoid pollution?\",\"answer\":\"Water containing silt must not be pumped directly to natural watercourses. Discharges should be made over open ground or into existing field drains with silt traps placed at a minimum distance from the nearest watercourse, and pumped water should be directed into track side ditches and treated in settlement ponds and vegetation swales prior to overland discharge.\"},{\"question\":\"What actions should be followed if water pollution is identified?\",\"answer\":\"Stop-work in the immediate area and identify the pollution source. Contain the source using suitable bunding methods, temporarily divert natural watercourses around the source, and notify relevant authorities immediately to protect fisheries and other sensitive areas.\"}]","APPENDIX4-3 - DRAINAGE DRAWINGS - Pollution Prevention Notes | PDF",23]