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**Please Note: At a minimum, you must establish good soil quality and depth in all areas that will <br />remain vegetated after your project is complete, including lawn and landscaped areas. One of the <br />three following options must be chosen (Select Check Boxes as applicable) per BMP 12.20: <br />❑ OPTION 1- Amend Existing Soils in Place: <br />Scarify ortill existing subgrade to 4 inches depth (orto depth needed to achievea total depth of 12 inches of <br />uncompacted soil after calculated amount of amendment is added, see specific subsections below). Entire surface <br />should be disturbed by scarification. Do not scarifywithin drip line of existing trees to be retained. <br />Within Storm water Drainage System locations or Landscaped Areas (10percent organic content)- Place and <br />rototill 3 inches of composted material into 5 inches of soil (a total depth of about 9.5 inches, for a settled depth <br />of 8 inches). As noted previously, subsoils below this layer should be scarified at least <br />4 inches, for a finished minimum depth of 12 inches of uncompacted soil. Rake beds to smooth and <br />remove rocks largerthan 2 inches diameter. Mulch areaswith 2 inches of organicmulch. <br />Within Lawn Areas (5percent organiccontent)- Placeand rototill 1.75 inches of composted material into 6.25 <br />inches of soil (a total amended depth of about 9.5 inches, for a settled depth of 8 inches). As noted previously, <br />subsoils below this layer should be -scarified at least inches, for a finished minimum depth of 12 inches of <br />uncompacted soil. Water or roll to compact soil to 85 percent of maximum. Rake to level, and remove surface <br />woody debris and rocks largerthan 1 inch in diameter. <br />® OPTION 2- Stockpile Site Topsoils Prior to Gradingfor Reapplication: <br />If placed topsoil plus compost or other organic material will amountto lessthan 12 inches: scarify or till <br />subgrade to depth needed to achieve 12 inches of loosenedsoil after topsoil and amendment are placed. Entire <br />surface should be disturbed by scarification. Do not scarify within drip line of existing trees to be retained. <br />Stockpile and cover soil with weed barrier material that sheds moisture yet allows air transmission, in <br />approved location, prior to grading. <br />Replace stockpiled topsoil prior to planting. <br />Within StormwaterDrainage System locations or Landscaped Areas (10percent organiccontent) - Place and <br />rototill 3 inches of composted material into 5 inches of replaced soil (a total depth of about <br />9.5 inches, for a settled depth of 8 inches). Subsoils below this layer should be scarified at least 4 inches, for a <br />finished minimum depth of 12 inches of uncompacted soil. Rake beds to smooth and remove rocks larger than 2 <br />inches in diameter. Mulch areas with 2 inches of organic mulch or stockpiled duff. <br />Within Lawn Areas (5percent organic content) - Place and rototill 1.75inches of composted material into 6.25 <br />inches of replaced soil (a total amended depth of about 9.5 inches, for a settled depth of 8 inches). Subsoils below <br />this layer should be scarified at least 4 inches, for a finished minimum depth of 12 inches of uncompacted soil. <br />Water or roll to compact soil to 85 percent of maximum. Rake to level, and remove surface woody debris and rocks <br />largerthan 1 inch in diameter. <br />❑ OPTION 3 - Import Topsoil Meeting Organic Matter Content Standards: <br />Scarifyor till subgrade in two directionsto 6 inches depth. Entire surface should be disturbed by <br />scarification. Do not scarifywithin drip line of existingtrees to be retained. <br />Within Storm water Drainage System locations or Landscaped Areas (10percent organic content) - Use <br />importedtopsoil mix containing 10 percent organic matter (typically around 40 percent compost). 'Soil portion <br />must be sand or sandy loam as defined by the USDA. Place 3 inches of imported topsoil mix on surface and till <br />into 2 inches of soil. Place 3 inches of topsoil mix on the surface. Rake smooth and remove surface rocks over 2 <br />inches diameter. Mulch planting beds with 2 inches of organic mulch. <br />Within Lawn Areas (5percent organic content) - Use imported topsoil mix containing 5 percent organic matter <br />(typically around 25 percent compost). Soil portion must be sand or sandy loam as defined by the USDA. Place 3 <br />inches of imported topsoil mix on surface and till into 2 inches of soil. Water or roll to compact soil to 85 percent <br />maximum. Raketo level, and remove surface rocks largerthan 1 inch in diameter. <br />Page 4 of 6 <br />CITY OF EVERET T 13200 Cedar Street I Everett, WA 98201 1 425-257-8810 1 everettwa.g <br />