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:fENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> ...0 Unit Supervisors <br /> Donna K.Heran,R.E.H.S. 304 East Weber Avenue, Third Floor Carl Borgman,R.E.H.S. <br /> DirectorMske Huggins,R.E.H.S.,R.D.I. <br /> � Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.>ES, <br /> • �.'P • pro raid Manager q ,_ ..a � g Telephone: (209) 46$-3420 Margarct Lagorio,R.E.H.S. <br /> �+F o Laurie A.Cotulla,R.E.H.S. Robert McClellon,R.E.H.S. <br /> P,-ogram Manager Fax: (209} 464-0138 Mark Barcellos,R.E.H.S. <br /> BARSOOM INC / ALEXANDER ENSHER <br /> APR 2 a 2404 <br /> 926 J BLDG RM 503 <br /> SACRAMENTO CA 95814 <br /> RE: UIC-Septic System Site Code: pending <br /> 14200 W. Bacon island Rd CO#: 0020432 <br /> Stockton, CA. 95219 RO#: pending <br /> On February 27, 2004, San Joaquin County Environmental Health Department (EHD) <br /> posted the above referenced site as "unsafe to inhabit" due to the operation of an illegal <br /> drug lab in the sheds on this property. Due the presence of hazardous materials/waste <br /> associated with the drug lab, the septic system was sampled and it was determined that <br /> chemicals were discharged into it. San Joaquin County Ordinance Code Section 9- <br /> 1110.7 prohibits disposal of hazardous materials/waste (solvents and toxics) in a septic <br /> system. <br /> EHD has implemented a Local Agency Groundwater ProtectionlUnderground Injection <br /> Control (UIC) Program in accordance with guidelines prepared by the United States <br /> Environmental Protection Agency (USEPA). The primary focus of the program is to <br /> protect drinking water by identification and evaluation of subsurface disposal of <br /> prohibited substances. The presence of Total Petroleum Hydrocarbons as Diesel (TPH- <br /> d), Oil and Grease, Total Recoverable Petroleum Hydrocarbons (TRPH), and low pH in <br /> your septic tank makes it subject to the underground injection control regulations and our <br /> local program. <br /> Further investigation to determine if the chemicals found in the septic tank flowed into <br /> the leach lines and seepage pits (if present) of the septic system must be performed to <br /> evaluate if there is a threat to drinking water. EHD will require you to submit a work plan <br /> to gather soil samples from under the tanks, the distribution box, and every 20-linear <br /> feet of the leach lines and groundwater samples if encountered during the investigation. <br /> If any pits are located at the end of the lines, it may be necessary to collect soil samples <br /> from below the pits if the soil at the end of the lines indicates the hazardous <br /> waste/material has reached this area. <br /> If chemicals have migrated to the leach lines and seepage pits, further use (continued <br /> disposal of liquids) into the septic system is discouraged by EHD as it may cause further <br /> percolation of the chemicals, increasing the threat of the chemicals contaminating the <br /> ground water. <br />