SITE INFORMATION AND CORRESPONDENCE

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KYLE CHRISTIE PAGE 2 October 30, 1995, at 10:00 a.m. at the office of PHS/EHD. A summary of this meeting is addressed in a separate letter. 1617 W. Fremont St., Stockton ARCO Facility #5450 PHSIEHD contact - Michael Infurna Soil contamination was discovered during a recent line replacement. A workplan to investigate the full extent of the contamination will be submitted to PHS/EHD. 800 E. Kettleman, Lodi ARCO Facility #2076 PHD/EHD contact - Mary Meays Emcon stated that the most recent groundwater sample results continue to confirm that groundwater has not been impacted by residual soil contamination at this time. A request to reduce the sampling frequency of the monitoring wells will be made in the next quarterly report. Arco will perform a long term vapor extraction test to develop a future plan of action for the site. 1612 Hammer Lane, Stockton ARCO Facility #548 PHSIEHD contact - Mary Meays The pending tank removal was discussed. However, it has not yet been determined if the tanks will be replaced at this site. Arco will submit a letter clarifying several items in the workplan that was submitted. The number, location and design of the vapor extraction wells proposed for the site were discussed and appropriate action will be taken based on data to be collected at the site. There has been no response from the property owner for the off-site access request. Emcon will forward copies of request letters to PHS/EHD for followup. 2908 W. Ben Holt, Stockton ARCO Facility #2133 PHSIEHD contact - Mary Meays The remediation system is fully operational with almost no down time being reported. The recent release from the dispenser piping was discussed. Approximately 30 gallons of product has been removed from monitoring well MW#10 and bailing continues on a weekly basis. The remedial system has been modified to focus on this area at this time. Dissolved oxygen is increasing in concentration in the site wells. The third quarter quarterly report is to be submitted soon. 85 East Louise, Lathrop ARCO Facility #6080 PHS/EHD contact - Linda Turkatte SITE CLOSED 225 South Cherokee Lane, Lodi ARCO Facility #760 PHS/EHD contact - Linda Turkatte The next submittal for this site is to be a Corrective Action Plan, which will include the design specifications of the remedial system proposed for the site. The status of operations at other Arco facilities may change the priority of cleanup at this site. As groundwater contamination at this site is nominal and being monitored, focusing resources at other sites with a higher priority appears to be a reasonable approach at this time. PHSIEHD will entertain a proposal for a reduction in groundwater sampling frequency at this site.