Laserfiche WebLink
1a yr �. > ^ `� a • F w ' Y <br /> I <br /> , x 1 <br /> y , <br /> Quarterly Ground Water Monitoring Report- Second Quarter 2000 <br /> FORMER STOCKTON PLATING FACILITY <br /> 632 South El Dorado Street, Stockton, California <br />' 1 0. INTRODUCTION <br /> r <br /> I I <br />' At the request of Mr Richard Leland of R and L Busyness Management of Stockton, Advanced 4 � <br /> GeoEnvironmental, Inc (AGE) has prepared this report for 632 South El Dorado Sti eet, Stockton, <br /> California(the site) This report documents the quartei ly monitoring results foi June 2000 The site <br />' setting is illusti ated on Figure 1 The locations of structures and monitot mg wells on the site ate <br /> depicted in Figur e 2 <br />' Background information, including details of previous site assessment work, was presented in <br /> previous AGE reports including,Corrective Action Plan,dated 15 November 1995, QuarterlyReport <br /> 1 - March 1996, dated 05 April 1996 and to Quarterly Report -June 1998, dated September 1998 <br />' 2.0 PROCEDURES <br /> Monitor mg and sampling were performed in accordance with guidelines established by the Central <br /> Valley Regional Water Quality Control Board(CVRWQCB) and by the San Joaquin County Public <br /> Health Set vices-Environmental Health Division(PHS-EHD) In addition,field work was conducted <br /> in accordance with the PHS-EHD-approved work plan Installation of Depth Discrete Wells, dated <br /> 10 December 1999 <br /> L <br /> 2 1 MONITORING WELL PURGING PROCEDURES <br /> On 16 June 2000, a Solinst water level meter was used to measure the depth to ground water in five <br />'I monitoring wells (MW-4 through MW-8) and four vapor wells (V W-1 through VW-4) The top of i <br /> the screened intervals in wells MW-1 through MW-3 are approximately 15 feet below the ground <br /> water surface and, therefore, were not gauged, purged or sampled in concurrence with the PHS- <br /> EHD I I I <br /> 1 <br /> Aftei ground water depth measurements, a minimum of three well volumes of water were 1 emoved <br /> ' fr om wells MW-4 through MW-8 and VW-1 through VW-4 using a submersible pump Temperature, <br /> pH, and electrical conductivity were measured at tht ee or five-gallon intervals using an ICM Model <br /> 52200 water analyzes Purge water stabilization field data sheets at e included in Appendix A Purged <br /> water was stored on-site in labeled DOT-approved 55-gallon drums <br /> s ' <br /> 1 <br />