Laserfiche WebLink
1 - <br />' Quarterly Report - First Quarter 2001 <br /> • PACIFIC MINI-MART <br />' 4511 Pacific Avenue, Stockton, California <br />' 1A. INTRODUCTION AND SCOPE OF WORK <br />' At the request of Mr Art Wyatt,Advanced GeoEnvironmental, Inc (AGE) has prepared this ground <br /> water monitoring report for the first quarter 2001 for the site located at 4511 Pacific Avenue, <br /> Stockton, California (the site) The location of the site is illustrated in Figure 1 and structures, <br />' monitoring well and soil boring locations are illustrated in Figure 2 <br /> The site history and a description of previous work performed at the site were detailed in Quarterly <br />' Report-March 1996 dated 30 April 1996,prepared by AGE Findings from the latest soil and grab <br /> ground water sampling event were detailed in Quarterly Report-June 1998,prepared by AGE, dated <br /> 22 December 1998 Data from previous ground water monitoring events are included in the tables <br /> Iof this report <br /> The scope of work included monitoring of the ground water monitoring well network on the site <br /> This report documents collection and analysis of ground water samples and the results of a ground <br /> water monitoring event <br /> 20 PROCEDURES <br /> Thirteen wells (monitoring wells MW-I through MW-12 and vapor well VW-1) were purged and <br /> sampled on 26 January 2001 Field procedures were performed in accordance with Central Valley <br /> Regional Water Quality Control Board (CVRWQCB) and San Joaquin County Public Health <br /> IServices - Environmental Health Division (PHS-EHD) guidelines for subsurface Investigations of <br /> underground storage tank (UST) sites <br /> 2 1 MONITORING WELL PURGE PROCEDURES <br />' On 26 January 2001, a Solmst water level meter was used to measure the depth to ground water in <br /> monitoring wells MW1 through MW12, vapor well VW1 and wells MW-7 and MW-8 from the <br /> Pacific Cai Wash site <br /> After depth to ground water measurements were collected, a minimum of 3 casing-water volumes <br /> were purged from each well to be sampled using a PVC submersible two-stage pump Temperature, <br /> pH and conductivity of purged ground water were measured at various intervals, depending on the <br /> volume of water in each well, using a Hydac water analyzer The field data and field sheets are <br /> IIncluded in Appendix A Purged water was temporarily stored on-site in 55-gallon DOT-approved <br /> • H-17 storage drums pending proper disposal Following purging, the depth to ground water was <br /> Advanced GeoEnvironmental Inc <br />