Laserfiche WebLink
3. She Map <br />Each plan shall provide a site map or maps which indicate at a minimum: <br />- mining/milling site boundaries and access and haul roads; <br />- equipment storage, fueling and maintenance areas; <br />- materials handling areas; <br />- areas used for storage of overburden, materials, sat/s or wastes; <br />- areas used for outdoor manufacturing, storage or disposal of materials; <br />- location of mine drainage or any other proeess water; <br />- tailings piles/ponds, both new and preexisting; <br />- mine drainage or any other process water discharge points; <br />-springs, slreame, wetlands and other surface waters; and <br />-boundary of area that contributes runoff to outfatls Chad are subject to effluent limitations <br />guidelines <br />For those areas outside of the area tha[ contributes runoff to outfalls that are subject to e,~Tuent <br />limitations guidelines: <br />- an estimate ofthe dixdion(s) ojJlow; <br />- stormwater outjal/s and an outline of the drainage area ojeaeh stormwater autfat/; <br />- each existing shuctural rorttrol measure to reduce pollutants in stormwater runoff; and <br />-the location of impervious structures (eg. parking lots, roofs, etc.) <br />The drainage areas shown should include the portions of the site where industrial activities occw; as <br />well as those pardons contributing stormwater that mixes with rurwfffrom the industrial area. <br />Therefore, the entire drainage area where industrial activities occur must usually be included. Aside <br />from mining; industrial activities can include equipment washing materials storage, vehicle <br />maintenance orfueling, incineration, waste treatment, storage or disposal, <br />shipping/loading/unlouding; etc. You do not need to include industrial activities which only take <br />place indoors, unless there is some part or aspect of the activity with which stormwater could come <br />in contact. For example, if all vehicle maintenance is done indoors, but vehicle storage or fueling is <br />outside, the vehicle storage or fueling area must be addressed <br />The map should show, at a minimum: <br />• Locations of stormwater vutfalls: <br />If the site has a stormrovaier drainage system, the location of outfai/s is a simple task. Indicate on the <br />map where pipeline outfalls are, as weld as the general layout of the drainage system such as inlets, <br />grates, pipelines, etc. If stormwater is conveyed over land without a developed storm drainage <br />system, the points where rurwffcullects and runs off must be located. <br />• Drainage basins for each outfall: <br />Field inspection can usually accomplish this task with acceptable occuracy..Lovk for high areas <br />such as crests of parking lots, roads, etc. which would form the divisive between drainages Gullies <br />and swales are indicators of stormwater flow direction. Obviously, if runof f is observed during a <br />storm, most uncertainties can be eliminated. <br />• Surface water bodies (including dry water courses): <br />Mark on the ,rite map any surface water bodies, including lakes, streams, springs, wetlands, <br />detemion ponds, roadside or irrigation ditches, etc. These do not necessarily need to be within the <br />facility, but may be adjacent to it or impacted by stormwater runoff <br />• Existing structural control measures to reduce stormwater pollution: <br />J:IMimesVSWMP1Evla-KrngsLswmp rev l7-99 S <br />November 1. /994 <br />