Agenda - Environmental Policy Board - 12/02/2013

Home

Table 3877 -3 Sandy Clay Loam Topsoil Borrow Requirements Requirement Range Test Method Screened and pulverized 100% ASTM D 422 Material passing the 3 /4 screen [19 0 mm] 100% ASTM D 422 Material passing No. 4 [4.75 mm] > 95% ASTM D 422 Clay 15% — 35% ASTM D 422 Silt 0% — 40% ASTM D 422 Sand 30% — 80% ASTM D 422 Organic matter 5% — 15% ASTM D 2974 pH 6.0 -7.1 ASTMG51 Soluble salts < 0.15 siemens /m [1.5 mmho /cm] Table 3877 -2 Loam Topsoil Borrow Requirements Requirement Range Test Method Material Passing the 3 /4 in [19 0 mm] 100% ASTM D 422 Material passing No. 4 [4.75 mm] > 90% Clay 5% — 30% ASTM D 422 Silt 10% — 50% ASTM D 422 Sand 20% — 70% ASTM D 422 Organic matter 3% — 20% ASTM D 2974 pH 6.1 — 7.5 ASTM G 51 Soluble salts < 0.15 siemens /m [1.5 mmho /cm] Table 3877 -1 Common Topsoil Borrow Requirements Requirement Range Test Method Material Passing the 3 /4 in [19 mm] 100 % ASTM D 422 Material passing No. 4 [4.75 mm] > 85% Clay 5% — 40% ASTM D 422 Silt 10% — 60% ASTM D 422 Sand 20% — 65% ASTM D 422 Organic matter 3% — 20% ASTM D 2974 pH 6.1 -7.8 ASTMG51 MnDOT 2014 Standard Specifications for Construction (3877 Topsoil Material) A Common Topsoil Borrow Provide Common topsoil borrow ranging from a silt loam, loam, clay loam, sandy clay loam, or sandy loam soils for general use as a turf growing medium and in accordance with Table 3877 -1. Common Topsoil Borrow is a blend of Type A and /or Type B horizon soils defined in the soil profile section of the Grading and Base Manual, and is similar to topsoil found adjacent to the project. B Loam Topsoil Borrow Provide topsoil borrow consisting mostly of loam ranging into sandy clay loam, sandy loam, silt loam, and clay loam soils as a plant growing medium for landscape and planting beds and in accordance with Table 3877 -2: C Sandy Clay Loam Topsoil Borrow Provide topsoil borrow consisting mostly of a sandy clay loam and ranging into clay loam, sandy loam, and loam soils for use as a plant growing medium in critical areas, such as steep slopes and as a top dressing for Turf Reinforcement Mats and in accordance with Table 3877 -3: