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TABLE 2 - SOIL CHARACTERIZATION OF DRAIN INLETS Drain Boring Over Drain Inlet(a) lateral Boring Inlet DI-1 SB-1 SB-2 Drilled to a depth of 10 feet below ground surface Drilled to a depth of 9 feet bgs. Dark brown clay at 2 to (bgs). Bottom of drain inlet is 3 feet bgs. Stained soil 3 feet bgs. Clay is semi-plastic and exhibited no odors. extends 6 to 7 feet bgs. 10-foot sample is a brown, 9-foot sample is a brown, clayey silt, dense, with no clayey silt with no odors or stains. Soil is dense. Driller odors or stains. Drilling slow due to dense soil. has trouble penetrating soil. SB-3 Drilled to a depth of 9 feet bgs. Encountered dark brown,semi-plastic clay at 2 to 3 feet bgs. No odors exhibited. At 5 feet bgs, a brown dense clayey silt encountered which extends to at least 9 feet bgs. Drilling slow due to dense soil. DI-2 SB-4 SB-5 Drilled to a depth of 10 feet. Bottom of drain inlet is at Collected sample at 8 feet bgs. Soil is brown, dense, 32"bgs. Stained soil extends 5 to 7 feet bgs. clayey silt,with no odors or stains. Dark brown clay Encountered dark brown, semi-plastic clay at 2 to 3 feet seen at 2 to 3 feet bgs. Slow drilling. bgs. 10-foot sample is a brown,clayey silt with no odors or stains. The soil is dense. Driller has trouble penetrating soil. SB-6 Collected sample at 8 feet bgs. Soil is brown, dense, clayey silt,with no odors or stains. Dark brown clay seen at 2 to 3 feet bgs. Slow drilling. DI-3 SB-7 SB-8 Drilled to a depth of 10 feet. Bottom of drain inlet is at Collected sample at 8 feet bgs. Sal is brown, dense, 35"bgs. Stained soil extends 5 to 7 feet bgs. clayey silt,with no odors or stains. Dark brown clay Encountered dark brown, semi-plastic clay at 2 to 3 feet seen at 2 to 3 feet bgs. Slow drilling. bgs. Sample collected at 8 feet bgs is a brown,clayey silt with no odors or stains. The soil is dense. Slow drilling. SB-9 Collected sample at 8 feet bgs. Soil is brown, dense, clayey silt,with no odors or stains. Dark brown clay seen at 2 to 3 feet bgs. Slow drilling. DI-4 SB-10 SBA 1 Drilled to a depth of 10 feet. Bottom of drain inlet is at Collected sample at 8 feet bgs. Soil is brown, dense, 27"bgs. Stained soil extends 5 to 7 feet bgs. clayey silt,with no odors or stains. Dark brown clay Encounter dark brown, semi-plastic clay at 2 to 3 feet seen at 2 to 3 feet bgs. Slow drilling. bgs. Sample is collected at 8 feet bgs which is a brown,clayey silt with no odors or stains. The soil is dense. Driller has trouble penetrating soil. SB-13 SB-12 Drilled to a depth of 13 feet bgs. Bottom of drain inlet is Collected sample at 8 feet bgs. Soil is brown, dense, at 27"bgs. Stained soil extends 5 to 7 feet bgs. clayey silt,with no odors or stains. Dark brown clay Encountered dark brown, semi-plastic clay at 2 to 3 feet seen at 2 to 3 feet bgs. Slow drilling. bgs. Sample collected at 13 feet bgs is a brown,clayey silt with no odors or stains. The soil is dense. Driller SB-14 has trouble penetrating soil. PETG liner mangled. Collected sample at 12 feet bgs. Soil is brown, dense, Collected sample in brass liner. clayey silt,with no odors or stains. Dark brown clay seen at 2 to 3 feet bgs. Slow drilling. a. See Figure 1 for location of soil borings.