Laserfiche WebLink
Mr Chuck Carmel <br /> March 22, 1994 <br /> Page 5 <br /> Monitoring well W-2 will be destroyed and replaced during this work phase Well W-2 will <br /> be drilled out to 2 to 5 feet below the bottom of the existing well casing The existing 2-inch <br /> diameter well casing will be replaced with 4-inch diameter PVC casing and installed in this <br /> same borehole The well will be constructed as presented in Figure 2 Upon installation, the <br /> well will be developed and sampled The groundwater sample will be collected by <br /> Groundwater Technology, Inc (GTI) and will be submitted to an ARCO contract laboratory <br /> for analysis of BTEX and TPH-G using EPA method 80151802015030 The new well W-2 <br /> will once again be sampled on a quarterly basis The relative top-of-casing elevation of the <br /> new well W-2 will be determined <br /> After the Yield work is complete, a report will be generated which will document the field <br /> activities and summarize the analytical results of the soil and groundwater sampling Prior <br /> to preparing the report, all of the soil and groundwater analytical data for this site will be <br /> evaluated to determine if the hydrocarbon concentrations are low enough to request site <br /> closure It the hydrocarbon concentrations are low enough to request site closure, a closure <br /> report will be prepared in accordance with the Tri-Regional Board stall recommendations for <br /> Preliminary Investigation and Evaluation of Underground Storage Tanks, Revision to <br /> Appendix A, dated March 1, 1994 <br /> • If you have any questions regarding this work plan, please call Mr Steve Misner at <br /> (916) 444-0123 <br /> Sincerely, <br /> BROWN AND CALDWELL <br /> Y � <br /> SteveMisner Jay ucas <br /> Program Manager California Registered Geologist #4301 <br /> SDM JCL lk <br /> Enclosure <br /> cc/enc Ms Margaret Lagorio, San Joaquin County, Environmental Health Division (via <br /> UPS Overnight) <br /> Mr Matt Turner, Brown and Caldwell <br /> . Use or dtsclornre of data contained on this sheet is mibject to the reYtrtctron spectjied at the beSauung of thlY <br /> docttinew 120T PURI MWORKPLAN <br />