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augers were removed in 10 to 20 foot sections and the inner annulus of the auger was alternately filled to the surface with cement grout to prevent any caving in of the surrounding formation. ' Additional cement/bentonite grout was added to the wells as appropriate as the auger was removed The wells were subsequently completed with the addition of a traffic-rated utility box and a locking expandable cap Well Develo ment ' After each well installation was completed and the annular well seals had set for a minimum of 24 hours, the wells were developed Initially, a pre-cleaned 1 5-inch-diameter bailer was used to remove fines which had accumulated in the well during construction After a majority of the ' fines were removed with the bailer, a two-inch-diameter surge block was inserted into the well The surge block was then raised and lowered across the entire well screen interval approximately 20 times After the surge block was removed, the bailer was again used to remove the fines that ' had entered the well during surging Each well was developed until fines were unnoticeable and the water was relatively clear Conductivity, pH, and temperature measurements were monitored and bailing continued until these parameters had stabilized Parameters were ' considered stable when successive measurements were within 10 percent All development water was stored in the 700-gallon Baker tank onsite pending analytical results and a decision on water ' disposition Well development data are included in Table D-3 listed below TABLE D-3 Well Development Details MW-4 Mw-5 MW-6 1 Date developed September 11, 1992 September 11, 1992 September 11, 1992 ' Gallons of water removed Approxunately 35 Approximately 24 Approximately 27 Clanty of water at end of bailing Moderate turbidity noted Moderate turbidity noted Moderate turbidity noted Development Method Surge block/1 5-inch bailer Surge blockll 5-inch bailer Surge block/1 5-inch bailer 1 ' The site work was performed in accordance with WESTON's site specific health and safety plan, which was available onsite during field activities A safety meeting was held with subcontractor personnel prior to starting work each day to review anticipated safety hazards and emergency ' procedures The field work for this project was performed under Level D personal protection ' STKCWPMAREG3QTRWP D - 5 1�lI7J92