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1 <br />1 <br />1 <br />H <br />1 <br />1 <br />1 <br />1 <br />I <br />j <br />1 <br />11 <br />i� <br />1 <br />1 <br />1 <br />thus increasing infiltration through flocculation and reducing the quantity of stormwater <br />runoff. Second, it increases flocculation of suspended particles and aids in their depos- <br />ition, thus reducing stormwater runoff turbidity and improving water quality. <br />Conditions of Use <br />PAM shall not be directly applied to water or allowed to enter a water body. <br />In areas that drain to a sediment pond, PAM can be applied to bare soil under the fol- <br />lowing conditions: <br />. During rough grading operations. <br />. In Staging areas. <br />Balanced cut and fill earthwork. <br />. Haul roads prior to placement of crushed rock surfacing. <br />Compacted soil roadbase. <br />• Stockpiles. <br />• After final grade and before paving or final seeding and planting. <br />. Pit sites. <br />• Sites having a winter shutdown. In the case of winter shutdown, or where soil will <br />remain unworked for several months, PAM should be used together with mulch. <br />Design and Installation Specifications <br />PAM may be applied with water in dissolved form. The preferred application method is <br />the dissolved form. <br />PAM is to be applied at a maximum rate of 2/3 pound PAM per 1,000 gallons water (80 <br />mg/L) per 1 acre of bare soil. Table II-4.1.9 PAM and Water Application Rates (p.301) <br />can be used to determine the PAM and water application rate for a disturbed soil area. <br />Higher concentrations of PAM do not provide any additional effectiveness. <br />Table 11-4.1.9 PAM and Water <br />Application Rates <br />Disturbed Area (ac) <br />PAM (Ibs) <br />Water (gal) <br />0.50 <br />0.33 <br />500 <br />1.00 <br />0.66 <br />17000 <br />1.50 <br />1.00 <br />1,500 <br />2.00 <br />1.32 <br />27000 <br />2.50 <br />1.65 <br />27500 <br />2014 Stormwater Management Manual for Westem Washington <br />Volume 11 - Chapter 4 - Page 301 <br />