Laserfiche WebLink
' Quarterly Report - May 1999 <br /> Mel Bokides Petroleum, Incr <br /> 501 W. Lodi Avenue <br /> Lodi, California JUN 221999 <br /> 1.0. INTRODUCTION ENVIRONIVEN iALCESTH <br /> PERMIT 1 SERV <br />' At the request of Mr Nicholas Bokides of Mel Bokides Petroleum, Inc , Advanced <br /> GeoEnvironmental, Inc (AGE)has prepared this Quarterly Report for 501 W Lodi Avenue (site), <br /> Lodi, California The site setting is illustrated on Figure 1 Site structures and monitoring well <br /> locations are depicted on Figure 2 <br />' The scope of work was to monitor and sample three ground water monitoring wells on the site The <br /> objective of the work was to monitor dissolved petroleum hydrocarbon concentrations in ground <br /> water and to characterize ground water flow direction and gradient on the site <br />' A summary of previous investigations at the site was included in the Work Plan for Site Assessment, <br /> Mel Bokides Petroleum, 501 West Lodi Avenue, Lodi, California, dated 15 May 1998,prepared by <br />' AGE <br /> 2.0. PROCEDURES <br />' Field work was conducted and this report is prepared in accordance with guidelines established by <br /> the Central Valley Regional Water Quality Control Board (CVRWQCB) and by the San Joaquin <br /> County Public Health Services- Environmental Health Division (PHS-EHD) related the subsurface <br />' investigation of the former underground storage tank(UST) system on the site <br /> 21 MONITORING WELL PURGE PROCEDURES <br /> On 12 May 1999, the depth to ground water in each monitoring well was measured to the nearest <br />' 0 01 foot utilizing a Solist water level meter Ground water elevations from BMW-1 through BMW- <br /> 5 (site wells) and MW-5 (off-site well) were then calculated by subtracting the measured depth to <br />' ground water from the surveyed casing elevations (Table 1) Ground water elevations were plotted <br /> and contoured on a scaled site map (Figure 3) <br />' After water levels were measured, approximately 42 gallons (a minimum of thi ee well volumes per <br /> well) of water were purged from wells BMW-1 and BMW-2, approximately 12 gallons of water <br /> were purged from well MW-5 and approximately six to eight gallons of water were purged from well <br />' BMW-3, BMW-4 and BMW-5, utilizing a two-stage submersible pump An ICM Model 52200 <br /> water analyzer was utilized to monitor temperature, pH and conductivity of purged water at regular <br /> purge-volume intervals Stabilization data and field logs are included with Appendix A Purged <br /> Advanced CeoEnriron mental,Inc <br />