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I ENVIRONMENTAL HEALTH DEPARTMENT SAN JOAQUIN COUNTY � p Unit Supervisors Q` Donna K. Heran, R.E.H.S, Carl Berman, R.E.H.S. Dbeem, 304 East Weber Avenue, Third Floor g Mike Huggins, R.E.H.S., R.D.I. Al Olsen, R.E.H.S. Stockton , California 95202-2708 Douglas W. Wilson, R.E.H.S. • . c . . - -- 'v • Program Manager Telephone: (209) 468-3420 Margaret Lagorio, R.E.H.S. Laurie A. Cotulla, R.E.H.S, Fax: (209) 464-0138 Robert McClellan, R.E.H.S. Program Manager Mark Barcellos, R.E.H.S. FOPPIANO INVESTMENTS INC NOV 14 2003 ERNEST & JERI FOPPIANO 2386 PHEASANT RUN CIRCLE STOCKTON CA 95207 RE : Stockton City Taxi Company SITE CODE : 1117 2085 Fremont Street Stockton CA 95205 San Joaquin County Environmental Health Department (SJC/EHD) has reviewed "Report of Findings: Lateral and Vertical Extent of Soil and Groundwater Contamination" dated September 16 , 2003 submitted on your behalf by WHF, Inc. (WHF) and has the following comments. The report documents the installation of four groundwater monitoring wells and two soil borings in July 2003. Reported analytical results from soil samples collected during the drilling of the boreholes indicate that the vertical and lateral extent of the contaminant impact to soil has not been defined . Please note that the report was titled incorrectly, as no data concerning the sites groundwater contamination was provided in the report. Though monitoring wells were installed , you did not have those wells developed and sampled within a reasonable amount of time following installation , and no groundwater analytical data was submitted with the report. Therefore, no conclusions concerning the dissolved contaminant concentrations, trends or groundwater flow direction could be made, and it was inappropriate for WHF to recommend the installation of more monitoring wells in this report, without providing this information . The monitoring wells were developed on September 9, 2003, and finally sampled on October 10, 2003, more than two months after they were installed . The analytical laboratory submitted a copy of the groundwater analytical data directly to SJC/EHD on October 23, 2003. The data documents petroleum hydrocarbon contamination in each well on site. Therefore , the vertical and lateral extent of the groundwater contamination has not been defined at your site . You are directed to continue routine quarterly groundwater monitoring and sampling of all site monitoring wells until informed otherwise by this agency. A report of findings, which includes all monitoring and sampling data, evaluation of the data, and calculation of groundwater gradient and flow direction , must be submitted to SJC/EHD within 60 days following each event. As you have been previously informed , per California Code of Regulations Section 2729. 1 Water Code Section 13196 , commonly referred to as AB 2886 , all laboratory analytical results must be electronically submitted to GeoTracker — the State Water Resources Control Board database program.