Laserfiche WebLink
Sierra Pacific Groundwater Consultants, Inc. <br /> _ HYDROGEOLOGISTS&GEOLOGISTS <br /> r <br /> RECEI�VED <br /> October 18 1995 <br /> OCT 19 , "5 <br /> ENVIRONMENTAL HEALTH <br /> William P. Schuler, President PERMIT/SERVICES <br /> Geo. F. Schuler, Inc. <br /> 1705 North Broadway Avenue <br /> Stockton, California 95205 <br /> Subject. Analytical Test Results from Ground Water Sampling at Geo. F. Schuler, Inc., 1705 North <br /> Broadway Avenue, Stockton, California, Sierra-Pacific c Project No. 94-055.04 <br /> Dear Mr. Schuler: <br /> On September 18, 1995, Sierra-Pacific Groundwater Consultants, Inc. (Sierra-Pacific) collected a <br /> suite of ground water samples from a solitary two-inch monitoring well (MW-11) located at 1705 <br /> North Broadway Avenue, Stockton using a Grundfoss submersible pump in accordance with Sierra- <br /> Pacific (EPA) standard practices (Appendix A). Water samples were collected in 1000 ml amber- <br /> colored glass bottles, 40-ml VOAs acidified with hydrochloric acid, 1000 ml plastic bottles acidified <br /> with sulfuric acid, and 500 ml non-preserved plastic bottles. No sampling difficulties were <br /> encountered. <br /> The water samples were placed in an iced cooler and immediately transported to Sequoia Analytical <br /> Laboratories, Inc. Samples were tested for Total Extractable Petroleum Hydrocarbons (TEPH) by <br /> EPA Method 8015, Total Purgeable Petroleum Hydrocarbons (TPPH) by EPA Method 8020, <br /> BTEX (benzene, toluene, ethyl-benzene, and xylene) compounds by EPA Method 8020, and <br /> Volatile Halogenated Hydrocarbon Compounds (including 1,2-DCP) by EPA Method 601. Water <br /> samples were also tested for Total Kjeldahl Nitrogen (TKN) and nitrates. <br /> The ground water samples from MW-11 contained 18 mg/l nitrates, which is believed to be the <br /> regional background concentration of nitrates in the uppermost saturated zone. No TKN <br /> compounds were detected. No petroleum or volatile halogenated hydrocarbon compounds (eg. 1,2- <br /> DCP) were detected (Appendix Q. The ground water samples from MW-11 were relatively clear <br /> and odorless. No oily sheen was observed. <br /> A copy of Sierra-Pacific's Third-Quarter 1995, Quarterly Monitoring Report, Former PureGro/Brea <br /> Facility, 1905 North Broadway Avenue, Stockton, is enclosed for your consideration. Your analytical <br /> results are attached in Appendix C. The ground water flow pattern is illustrated on Figure 3. <br /> l. <br /> (916)933-1468 <br /> 4911 Windplay Drive.Suite 4 El Dorado Hills.California 95762 (9161933-3197 FAX <br />