Laserfiche WebLink
a division of <br /> ENVIRONMENTAL SOLUTIONS 1Emc011 U <br /> May 18, 1998 <br /> Project 20805-142.008 <br /> Ms. Margaret Lagorio <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P.O. Box 388 <br /> Stockton, California 95201-0388 <br /> Re: Workplan for Off-site Vapor Extraction Well Abandonment, ARCO Products <br /> Company Service Station No. 760, 225 South Cherokee Lane, Lodi, California <br /> Dear Ms. Lagorio: <br /> Pinnacle Environmental Solutions, a division of EMCON (Pinnacle), has prepared this <br /> workplan for abandonment of three off-site vapor extraction wells (VW-6, VW-12 and <br /> VW-13) at ARCO Service Station No. 760, located at 225 South Cherokee Lane in Lodi, <br /> California (see Figures 1 a1d 2). Abandonment of these wells is being proposed at <br /> ARCO's request and will be conducted consistent with San Joaquin County Public Health <br /> Services, Environmental Health Division standards (SJCPHS/EHD). EMCON previously <br /> submitted a workplan to the SJCPHS/EHD in June 1997, that proposed abandoning all <br /> site wells. However, ARCO now intends to keep on-site wells for potential future use and <br /> abandon only the three off-site wells as discussed in the February 18, 1998, meeting <br /> between ARCO and the SJCPHS/EHD. <br /> SCOPE OF WORK <br /> The construction details for off-site vapor extraction wells VW-6, VW-12, and VW-13 <br /> are presented in the following table and well logs are located in Appendix A. <br /> Well I Depth Borehole Diameter Well Diameter Screen Interval Slot Size <br /> VW-6 26 ft 8-inch 4-inch Sch 40 PVC 23 to 26 ft 0.10 inch <br /> VW-12 44 ft 10-inch 4-inch Sch 40 PVC 19.9 to 44 ft 0.10 inch <br /> VW-13 44.2 ft 10-inch 4-inch Sch 40 PVC 20.1 to 44.2 ft 0.10 inch <br /> SAC\AA7QQNhQ67f t] Suite 220 Cameron Park,California 95682 (530)676-6884 (530)676-6885 Fax <br />