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�a <br /> � ry FILE CCPV <br /> PUBLIC HtALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION wo <br /> Karen Furst, M.D., M.P.H., Health Officer304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 209/468-3420 <br /> RAY BAGLIETOO & FRANK RAUZI NOV 13 2000 <br /> TULEBURGE WAREHOUSE <br /> 301 AURORA ST <br /> STOCKTON CA 95202 <br /> RE: SPEEDY FOOD MART <br /> 8200 N HWY 99 <br /> STOCKTON CA 95212 <br /> During the installation of a deep monitoring well{MW-9) to 130 feet below surface grade (bsg) at the above- <br /> referenced site on October 20,2000,a previously unknown leach line was discovered in the field west of the <br /> present septic tank and leach lines. No record or permit of the discovered leach line exists. It is unknown if <br /> the discovered Ieach line is active or if there are additional unknown leach lines in the area. <br /> San Joaquin County Public Health Services,Environmental Health Division(PHS/EHD) agreed to Ground <br /> Zero's request to install MW-9 in the area where the old leach line was discovered as originally proposed in <br /> Work PlanfarAdditiorrad Subsur&x lnur shggtiondated June 30,2000 prepared by Ground Zero,with the condition <br /> that nitrate and nitrite must be analyzed in future water samples. An increase in nitrate or nitrite levels maybe <br /> indicative of vertical transport of contaminants to the deeper lower aquifer by wayof MW-9. If MW-9 is found <br /> to be acting as a vertical conduit,it must be properly destroyed under permit. You are required to analyze and <br /> report the groundwater samples of MW-9 for nitrate and nitrite in addition to the other constituents as <br /> proposed in the work plan in all future quarterly monitoring samplings. <br /> For nitrate and nitrite background comparison purpose,a copy of the analytical results of the water sample <br /> collected and sampled from the well head of the domestic well on site in December 1997 is included with this <br /> letter. Analytical results of the sample were 5.0 milligrams per liter(mg/L) of nitrate,and not-detected at or <br /> above the detection limit of 0.2 mg/L of nitrite. <br /> Ground Zero has informed PHS/EHD in a fax letter dated October 9,2000 that the resident at 4418 Gnekow <br /> Drive has yet to authorize the testing of their domestic well. PHS/EHD requests you to continue in your <br /> effort to obtain permission from the resident at 4418 Gnekow Drive to test their well if it has not be done yet. <br /> Submit the analytical data from the well to PHS/EHD as soon as possible. <br /> Please feel free to direct any questions to Jeffrey Wong at(209) 468-0335. <br /> Donna Heran,RENS,Director <br /> Environmental Health Division <br /> Jeffrey ong, HS Margaret agorio,RENS <br /> LOP/Site Mitigation Unit IV Supervisor,Unit IV <br /> Cc: CRWQCB,Central Valley Region-Marty Hartzell <br /> Cc: Ground Zero Analysis,Inc.-John Lane <br /> A Division of San Joaquin County Health Care Services <br />