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SECTION• ' <br />AMENDMENT OPTIONS <br />Select the soil preparation options that best suit each area of the project site. <br />Either choose a pre -approved default amendment rate, or have a qualified professional <br />calculate a custom rate based on soil and amendment tests described in Section 5, <br />using the calculation method described in Section 7 "Resources"). <br />OPTION 1: Leave native vegetation and soil undisturbed, <br />and protect from compaction during construction. <br />Identify areas of the site that will not be stripped, logged, graded or driven on, and fence off those areas to prevent impacts <br />during construction. If neither soils nor vegetation are disturbed, these areas do not require amendment. <br />OPTION 2: Amend existing site topsoil or subsoil <br />either at default "pre -approved" rates, or at custom calculated rates based <br />on specifier's tests of the soil and amendment. <br />Scarification. Scarify or till subgrade to 8 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). Entire surface should be disturbed by scarification. Do not <br />scarify within drip line of existing trees to be retained. Amend soil to meet required organic content. <br />A. Planting Beds <br />B. Turf Areas <br />1. PRE -APPROVED RATE: Place 3 inches of <br />1. PRE -APPROVED RATE: Place 1.75 inches of <br />composted material and rototill into 5 inches of <br />composted material and rototill into 6.25 inches <br />soil (a total amended depth of about 9.5 inches, <br />of soil (a total amended depth of about 9.5 inches, <br />for a settled depth of 8 inches). <br />for a settled depth of 8 inches). <br />2. CALCULATED RATE: Place calculated amount <br />2. CALCULATED RATE: Place calculated amount <br />of composted material or approved organic <br />of composted material or approved organic <br />material and rototill into depth of soil needed to <br />material and rototill into depth of soil needed to <br />achieve 8 inches of settled soil at 10% organic <br />achieve 8 inches of settled soil at 5% organic <br />content. <br />content. <br />Rake beds to smooth and remove surface rocks larger than <br />Water or roll to compact to 85% of maximum dry density. <br />2 inches diameter. <br />Rake to level, and remove surface woody debris and rocks <br />Mulch planting beds with 2 inches of organic mulch. <br />larger than 1 inch diameter. <br />