Laserfiche WebLink
• .2.7 BMP B1.60 OUTSIDE STORAGE OF RAW MATERIALS,BY-PRODUCTS OR FINISHED <br /> 4 DUCTS (SOLID MATERIALS) <br /> This . ' covers solid materials such as: <br /> - G . and,topsoil, compost, logs, sawdust,wood chips; -.._i <br /> - Lumber . er building materials; <br /> - Concrete and m- i oducts. <br /> The business shall select one oft' • owing practices appropriate to the type of material: <br /> - Build a covered,paved area for •e of the material, or; <br /> - Place temporary plastic sheeting over • 'aterial or; <br /> - Pave the area and install a drainage system t• ect stormwater for treatment. Treat the stormwater per <br /> the requirements of Section 1-3. <br /> Note: If re'ected as.halt is tern.oraril stored on-site before • .1 it shall be covered. <br /> With Option#3,the paved area shall be sloped in a manner that min the pooling of water on the site, <br /> particularly with materials that may leach pollutants into stormwater an 4. '4 ound water such as compost, logs, <br /> and wood chips. A minimum slope of 1.5 percent is recommended. The . - ‘:11 be designed to prevent the <br /> run-on of uncontaminated stormwater from adjacent areas as well as runoff o •a water from the stockpile <br /> area. <br /> The storm drainage system shall be designed to minimize the use of catchbasins in the i '• of the storage area, <br /> 4 s catch basins tend to rapidly fill with the manufacturing material. Rather,the area shoul• • .ed to drain <br /> tormwater to the perimeter where it can be collected,or to internal drainage "alleyways"whe ial is not <br /> tockpiled. Yi <br /> ' BMP S1.70 OUTSIDE MANUFACTURING ACTIVITIES <br /> This B` •lies to those businesses identified in Section 4-1 that plan to or currently carry out manufacturing <br /> or other po polluting activities in an area exposed to precipitation. The strategies presented below shall <br /> be used first,to . . imum extent practical,to prevent stormwater from becoming polluted. If stormwater <br /> pollution will still • ormwater treatment will be required per Section 1-3. <br /> Strategies to eliminate and • '' ize the potential for polluted stormwater runoff from any outside <br /> manufacturing activity include: <br /> Altering the activity: The preferred optio • ..lter any practice that may contaminate surface water or ground <br /> water by either not producing the pollutant to • ith or by controlling it in such a way as to keep it out of the <br /> environment. <br /> Enclosing the activity: If the practice cannot be altered, it • be enclosed in a building to prevent rain from <br /> coming in contact with the activity. <br /> Covering the activity: Placing the activity inside a building may be in • e or prohibitively expensive. The <br /> cost of a building can be significantly reduced by not covering the sides, i 'urinating the need for ventilating <br /> and lighting systems. <br /> Segregating the activity: Certain parts of the activity may be the worst source of po . Those parts can be <br /> gigregated and enclosed or covered. The drains from these areas can then be discharge. - sanitary sewer, <br /> ocess treatment, or a dead-end sump depending upon available methods and applicable pe equirements. <br /> 4-2-12 <br />