SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

d San Joaquin County DIRECTOR o r N Donna Heran, REHS C Environmental Health Department ASSISTANT DIRECTOR 600 East Main Street Laurie Cotulla, REHS (} gyp Stockton , California 95202-3029 PROGRAM COORDINATORS Carl Bergman, REHS �'q ' J� ' �P • Mike Huggins, REHS, RDI s/ OV. Orgl ehd Margaret Lagorio, REHSWebsite: www, Phone: (209) 468-3420 Robert McClellon, REHS FaXpCl4j 0� Jeff Carruesco, REHS, RDI Remo Canepa Kasey Foley, REHS Canepa' s Car Wash 1536 N. Hunter Stockton, CA 95204 Re: Canepas Car Wash, 6230 Pacific Avenue, Stockton CA Site Code: 1225 Canepas Car Wash, 248 East Park Street, Stockton, CA Site Code: 1148 At the request of your consultant, Condor Earth Technologies, Inc. (Condor) the San Joaquin County Environmental Health Department (EHD) held a meeting at the EHD office at 600 Main Street, Stockton CA on January 15m 2008 to discuss the Canepa' s Car Wash sites at 248 E. Park Street, Stockton, CA, and at 6230 Pacific Avenue, Stockton, CA. Attending the meeting with you were Jeff Canepa, and Paul Canepa representing Canepa ' s Car Wash; Ron Skaggs, Don Kresse from Condor Earth Technologies; Margaret Lagorio, Nuel Henderson, Frank Girardi representing the EHD; and Jim Barton representing the Central Valley Regional Water Quality Control Board (CVRWQCB). The following is a synopsis of the status and/or site specific discussions at the meeting. 6230 Pacific Ave, Stockton. According to Condor, reimbursement funds from the underground storage tank (UST) clean up fund has been nearly depleted. Condor anticipates that the UST Cleanup Fund reimbursement is projected to be depleted in June 2008 under the current system. Condor presented options to reduce the expense of remediation, including continuing "as is". As of August 31 , 2007, the ground water extraction (GWE) pump and treat system has removed approximately 73 pounds of gasoline during the third quarter 2007 (approximately 1 .25 pounds per day of operation) and 648 pounds of gasoline since the system first began operation in November 2004. The soil vapor extraction (SVE) system removed 92.9 pounds of gasoline during the third quarter and 10,973 pounds since the system was placed in service. The current system in place is still effectively removing contaminants. Condor estimated that approximately three quarters of the original contaminant mass has been removed so far. Options to modify the system were presented by Condor at the meeting including: 1) the addition of an extraction well to the remediation system 2) replacing the thermal burner with vapor phase carbon canisters for the air stripper, 3) down-sizing the system to enhance and monitor natural attenuation. Condor indicated that these options will require additional startup costs of $ 10,000.00 to $30,000.00 and will accelerate depletion of the reimbursement funds available. It was discussed that air sparging (AS) is not likely to be a suitable remediation technology for this site, but site conditions may allow for shallow sparging which may strip contaminants from the shallow, intensely impacted ground water. Improving operation and maintenance of the system was also discussed, including shutting off SVE wells not extracting contaminate vapor to help reduce costs of operation. Any changes to the system, including adding extraction well SVE-4 to the GWE system, will require a proposal from your consultant with the technical justifications and cost effectiveness evaluation. The EHD must require that adequate measures be taken to pursue site closure in accordance with state law regardless of availability of additional monies from the State Cleanup Fund . If a modification of the Meeting comment letter 0208 I':