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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 /> 0 OPTION 1- Amend Existing Soils in Place: <br /> Scarify ortill existing subgrade to 4 inches depth(or to depth needed to achieve a 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 scarify within drip line of existing trees to be retained. <br /> Within StormwaterDrainage System locations or Landscaped Areas (10percent organic content)- Place and <br /> rototill 3 inches of composted material into 5 inchesof 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 areas with 2 inches of organic mulch. <br /> Within LawnAreas(5percent organic content)- Place and 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 4 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 Grading for Reapplication: <br /> If placed topsoil plus compost or other organic material will amount to less than 12 inches: scarify or till <br /> subgrade to depth needed to achieve 12 inches of loosened soil 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 Storm waterDrainage System locations or Landscaped Areas(10percent organic content)- Place and <br /> rototill 3 inches of composted material into 5 inches of replaced soil(a total depth of about <br /> 9.5 inches,fora 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 largerthan 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 1.75 inches 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 /> 0 OPTION 3- Import Topsoil Meeting Organic Matter Content Standards: <br /> Scarify or 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 Stormwater Drainage System locations or Landscaped Areas(10 percent 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. Rake to level,and remove surface rocks largerthan 1 inch in diameter. <br /> Page 5 of 7 ,,� <br />