Scb will perform borings to the depth of feet and 2 borings to the depth 115 feet unless refusal is encountered at shallower depths. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. Borings located in potentially contaminated areas will use cased mud-rotary methods. The borings will be performed utilizing a truck-mounted drill rig and will generate an approximately 6-inch diameter annulus. Sampling will be conducted using a 2-inch o. D., split-barrel sampler driven into the soil a distance of 18 or 24 inches by a 140-pound hammer falling inches.

Excavation; boring test pit (each addl)

Scb will perform borings to the depth of feet and 2 borings to the depth 115 feet unless refusal is encountered at shallower depths. The borings will be drilled utilizing 3. 25-inch hollow stem, continuous flight augers. Borings located in potentially contaminated areas will use cased mud-rotary methods. The borings will be performed utilizing a truck-mounted drill rig and will generate an approximately 6-inch diameter annulus. Sampling will be conducted using a 2-inch o. D., split-barrel sampler driven into the soil a distance of 18 or 24 inches by a 140-pound hammer falling inches.