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CLEARWATER G R O' U P, I N C. boring in the location shown on Figure 2. The 8-inch-diameter soil boring will be drilled to a depth of approximately 0 feet bgs. Soil samples will be collected at five-foot intervals from 5 feet bgs to 20 feet bgs (a total of four soil samples from the soil boring). - Clearwater proposes to drill and 'sample f Dur additional soil borings and convert them-to monitoring wells (PMW-4 through PMW-7) at the locations shown on Figure 2. .Because the direction o groundwater.flow at the subject location is uncertain, - monitoring well to ations 'were selected. to provide water level .data from.widely-spaced points around the former locations of the _. USTs and the fuel.dispenser. Clearwater will drill the soil borings and c nstruct the monitoring wells in the manner shown on Figure 3 and describe below: • Four 8-inch-diameter soil borings will be drilled and converted to 2-inch- diameter monitoring wells Total depth of each monitoring well will e"30 feet bgs - • Soil samples will be collected at five-f oot intervals; 'samples collected between-the depths of .15 and 30 feet bgs will:be submitted:.to_a.laboratory for analyses of petroleum.hydrocarbons • Wells will be constructed of 2-inch-dia- eter, Schedule 40 PVC casing and slotted screen r- _ Screen (0.020-inch slot size) will extend fr)m.30 feet to 15 feet bgs • .:A sand filter pack consisting of No. 3 Mo terey sand will be placed from..30;` feet to 13 feet bgs in the well annulus : • A bentonite seal will 'extend from 13 fe t to _11 feet bgs (the seal will be ' } made of hydrated bentoniteP ellets) , . • The remainder of.the well annulus will be filled with grout consisting of .neat cement or cement/bentonite grout with no more than 3 % bentonite D104 WP 9/95 4 F .