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Following completion of drilling the soil borings, a clean 2-inch diameter PVC piezometer <br /> will be installed in each boring. The soil borings will be advanced approximately 10-feet <br /> into groundwater (estimated total depth 25-feet). The wells will be constructed with <br /> schedule 40 PVC, a 15-foot long 0.020 inch screened section surrounded by and covered <br /> by a sand filter pack (#3), 1-foot thick bentonite transition seal above the filter pack, and <br /> grouted to the surface with a cement based grout material. The piezometers will be <br /> finished within a monument style (above ground) well vault. The bottom of each <br /> piezometer will be constructed with a threaded PVC bullnose cap. <br /> Once the piezometers have been installed, they will be surveyed by a State licensed <br /> surveyor so the depth to groundwater measurements in the piezometers can be <br /> converted to groundwater elevations - used to assess the groundwater gradient. The <br /> piezometers will be surveyed relative to a local benchmark. If a local benchmark is not <br /> available near the site, the wells will be surveyed relative to an onsite, assumed <br /> benchmark with an assigned elevation. <br /> 1.3 Piezometer Development <br /> Following installation of the well screen and casing, the piezometers will be developed <br /> to remove fine silt from the well bore and to effectively increase the hydraulic radius of <br /> each monitoring point. Surging along the screened interval of the wells will be <br /> performed to settle the sand filter pack. In addition to developing the monitoring wells <br /> until the discharge runs relatively clear of fines (fine sand), the discharge will be <br /> periodically monitored for pH, temperature, and specific conductance. <br /> The development/purge water will be discharged to the land surface in such a manner <br /> as not to allow the discharge to enter any surface water body. <br /> Task 2 Reporting <br /> Kleinfelder will submit a report with our findings for the installation of the piezometers to <br /> Grupe. The initial report will include a description of all field activities, boring logs, <br /> development logs, and a graphical representation of the piezometer locations. <br /> Individual monthly monitoring reports will be prepared describing the observed water <br /> elevations and conditions of each monitoring point. We estimate up to at least twelve <br /> consecutive months will be evaluated. <br /> 71812.H01/ST06R658/JDZ:Iv <br /> ©2006 Kleinfelder, Inc. Page 2 of 4 <br /> June 22, 2006 <br />