1710 W MARINE VIEW DR 2024-01-03

. Plant and mulch soil after installation. . Leave plant debris or its equivalent on the soil surface to replenish organic matter. . Reduce and adjust, where possible, the use of irrigation, fertilizers, herbicides and pesticides, rather than continuing to implement formerly established practices. BMP C126: Polyacrylamide (PAM) for Soil Erosion Protection Purpose Polyacrylamide (PAM) is used on construction sites to prevent soil erosion. Applying PAM to bare soil in advance of a rain event significantly reduces erosion and controls sed- iment in two ways. First, PAM increases the soil's available pore volume, thus increasing infiltration and reducing the quantity of stormwater runoff. Second, it increases flocculation of suspended particles and aids in their deposition, thus reducing stormwater runoff turbidity and improving water quality. Conditions of Use PAM shall not be directly applied to water or allowed to enter a water body. Stormwater runoff shall pass through a sediment pond prior to discharging to surface waters. PAM can be applied to bare soil under the following conditions: . During rough grading operations. . In Staging areas. . Balanced cut and fill earthwork. . Haul roads prior to placement of crushed rock surfacing. . Compacted soil roadbase. . Stockpiles. . After final grade and before paving or final seeding and planting. . Pit sites. . Sites having a winter shut down. In the case of winter shut down, or where soil will remain unworked for several months, PAM should be used together with mulch. Design and Installation Specifications . Do not use PAM on a slope that flows directly into a stream or wetland. . Do not add PAM to water discharging from the site. 2019 Stormwater Management Manual for Western Washington Volume /l - Chapter 3 - Page 304