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PUBLIC1-4EALTH SERV�CES <br /> ' <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION „ .x <br /> Q I <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer •` <br /> 304 E. Weber Ave., Third Floor • P. O. Box 388 + Stockton, C-A 95 <br /> 2091468-3420 <br /> TODD TERESI MAILED JAN 2 51995 1 <br /> f TERESI TRUCKING F <br /> 900 112 VICTOR RD i <br /> LODI CA 95241 <br /> RE: WORK PLAN FOR 900 112 VICTOR ROAD, LODI SITE CODE: 1747 <br /> In response to our numerous telephone conversations recently regarding the site referenced above l <br /> San Joaquin County Public Health Services, Environmental Health Division (PHSIEHD) Site <br /> Mitigation Unit provides the following continents. <br /> To date soil samples collected at this site from the excavation sidewails, bottom and stockpiles <br /> confirm the presence of petroleum hydrocarbon contamination at or above the detection limits 3 <br /> applied for Total Petroleum Hydrocarbons (TPH) as gasoline and diesel including some BTEX <br /> components. ' <br /> :r <br /> Previous work at this site including excavation revealed the presence of an open 12" well <br /> positioned in the center of the two existing excavations. A verbal directive by PHSIEHD to <br /> Todd Teresi to sample this well for total depth, depth to water, dawn hole video logging and <br /> examination for free product or sheen and subsequent laboratory analysis (TPH as gasoline and <br /> diesel, BTEX and MTBE at currently accepted detection limits to be approved at the time of <br /> sampling and reflected on the chain of custody) prior to destruction or use of this well was <br /> issued during our December 18, 1995 office meeting. PHSIEHD", considers this well to be a } <br /> probable vertical migration conduit which may contribute to groundwater contamination and <br /> therefore determining its overall condition is currently the highest priority issue for this site. <br /> i In order to protect ground water quality and potential future ground water use PHSIEHD <br /> provides this directive to sample the well for the above parameters to be completed no later <br /> than February 5, 1995. PHSIEHD must be present for sampling and observations during <br /> all phases of evaluation not limited to those activities listed above for this site and re uests <br /> q <br /> a 48 hour advanced notification for inspections. Soil types; sand silt and silty sands observed <br /> in the existing excavations may also act to aid in rapid lateral xnd or vertical contaminant <br /> w <br /> migration. Further investigation in the form of soil and groundwa, ter sampling is therefore <br /> required in the vicinity of the existing tank excavations. k <br /> Work plans for this site dated January 12, 1996 and an amendment received January 24, 1996 <br /> have been reviewed. PHSIEHD concurs with the fundamental' approach proposed in the <br /> amended work plan. A minimum of three soil borings is required at this time with the <br /> probability of several more expected to fully delineate the soil and ground water plume. FuIi ; <br /> C definition is generally required prior to proposing or engaging'in remediation activities. Ground <br /> e <br /> A Division of'5an Joaquin County Heath Care Services, } <br /> o�c5'QG <br />