Laserfiche WebLink
Metadata
Document management portal powered by Laserfiche WebLink 9 © 1998-2015 Laserfiche. All rights reserved.
I J } h Y FY'Sy L1a I tyl S�'Ss N^ h I ... 1 tit} - I ✓ \ M. ! r 'f`!t .. <br /> .LA Fst"s41L�J <br /> 1 <br /> Ground Water Monitoring Report -First Quarter 2000 <br /> ' PACIFIC PRIDE - SOUTH ELDORADO STREET <br /> 3147 South El Dorado Street, Stockton, California <br /> 1.0. INTRODUCTION <br /> ' Advanced GeoEnvironmental, Inc (AGE) has prepared this Ground Water Monitoring Report for <br /> the first quarter of 2000 for 3147 South El Dorado Street, Stockton, California The site setting is <br /> illustrated on Figure 1 Site structures and monitoring well locations are depicted on Figure 2 <br /> The objective of the work was to monitor dissolved petroleum hydrocarbon concentrations m ground <br /> J P Y <br /> water and to characterize ground water flow direction and gradient on the site This report is prepared <br /> ' in accordance with guidelines established by the California Regional Water Quality Control Board- <br /> Central Valley Region for investigation of underground storage tank (UST) sites Background <br /> information is summarized in the Preliminary Investigation and Evaluation Report -June 1999, <br /> dated 26 July 1999 and prepared by AGE <br /> ' 2.0. PROCEDURES <br /> ' On 10 March 2000, ground water monitoring and sampling was performed at the site on wells <br /> MW-1,MW-2,MW-3 and MW-4 Ground water monitoring procedures for the site were outlined <br /> in Monitoring Well Installation Work Plan - September 1999, dated 01 September 1999,prepared <br /> ' by AGE and approved by the PHS-EHD by letter dated 23 September 1999 <br /> t2 1 MONITORING WELL PURGE PROCEDURES <br /> I <br /> Depths to ground water were measured In each well from the tops of the well casings at the site to <br /> ' the nearest 0 01 foot utilizing a Solinst water level meter Ground water elevations in each well at <br /> the site were calculated by subtracting the measured depth to ground water from the surveyed casing <br /> ' elevations (Table 1) Ground water elevations were plotted and contoured on a scaled site map <br /> (Figure 3) <br /> ' After water levels were measured, approximately 12 to 16 gallons of ground water(a minimum of <br /> three well-volumes per well)were removed from wells MW-1, MW-2, MW-3 and MW-4 utilizing <br /> a submersible pump Temperature, pH and conductivity were measured for stabilization at regular <br /> ' purge-volume intervals from each well using a Hydac water analyzer Field data and logs are <br /> included with Appendix A Purged ground water was containerized in 55-gallon drums and was <br /> stored on-site in an area lacking general public access <br /> 1 <br /> Advanced GeoEm ironmenta[,Inc <br />