Laserfiche WebLink
0 <br /> Associated Soils Analysis <br /> May 23,1994 <br /> File No. 420-93 <br /> Brian Cobb <br /> E-Z Serve Management Company <br /> 2550 N. Loop West,Ste.600 <br /> Houston,TX 77292 <br /> 1 — <br /> PROJECT: E-Z Serve Location#100966,2537 Waterloo Road,Stockton,CA <br /> Dear Mr.Cobb: , <br /> In accordance with your request, quarterly groundwater sampling was conducted at the above <br /> subject site on March 30, 1994. This quarterly work package includes a site data summary table, <br /> site groundwater gradient map (FIGURE 1), laboratory analyses of those samples collected by <br /> ASA,monitoring well sampling record,and sampling and purging protocol(ATTACHED). Our <br /> field and laboratory analyses were conducted in accordance with approved ASTM and EPA <br /> standards. 22n�8b `�V �.oal ' <br /> �A* <br /> Hca <br /> ✓ All wells on the site were sampled a analyzed for BT X and TPH as Gasoline. No BTEX was <br /> detected except in MW-3,at which ppb Benzene wa found. TPH(g) was reported in all eight <br /> wells in concentrations ranging from 11.0 ppb in MW-8 to 830 ppb in MW-3. <br /> Groundwater depths at the site have decreased relative to last quarter, indicating that the <br /> groundwater table is higher by about four and a half feet. A site groundwater gradient was <br /> determined by calculating the groundwater elevation in each well (SUMMARY TABLE) and <br /> contouring the elevation data (FIGURE 1). There is an apparent high at MW-4 which produces <br /> a gradient direction varying from northeast to west. The gradient magnitude is approximately <br /> .005 feet per foot. This value is significantly higher than that reported last quarter, but this is <br /> due to the high at MW4. The wellhead elevation of MW-4 relative to the other wells will be <br /> confirmed in the next round of sampling. <br /> If you have any questions about these results,please contact our office. <br /> Sincerely, <br /> ASSOCIATED SOILS ANALYSIS,INC. <br /> Q�Orr Satoh <br /> ' �pg5P11 04��� <br /> O � <br /> GaryJ. wion ao 0 <br /> R.G.5574 . No. 5574 p <br /> 1*� �� �y <br /> GJC/tp i <br /> 1141 Batavia Ct. Tulare, California 93274 (209) 688-1011 <br />