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PUBLIt HEALTH SERnCESPaU� . <br /> SAN JOAQUIN COUNTY <br /> JOGF KHANNA AfD.,NIT R <br /> Heald Officer ' <br /> P.O. Box 2009 • (1601 East Hazelton Avenue) • Stockton, California 95201 <i 6.0 <br /> (209) 468-3400 <br /> ,SEP 10 1991 <br /> JACK BRASTAD <br /> SHELL OIL COMPANY <br /> P O BOX 4023 <br /> CONCORD CA 94524 <br /> RE: Hammer Lane Shell IN REPLY REFER TO SITE CODE: 1660 <br /> 7910 Lower Sacramento Rd. , <br /> Stockton, CA 95210 <br /> San Joaquin County, Public Health Services, Environmental Health Division (PHS/EHD) conducted a site <br /> inspection to observe sampling procedures on August 15, 1991. <br /> your consideration. PHS/EHD has the following comments for <br /> Sampling had been scheduled by Gary Mosted of Delta Environmental to occur at 2:00 p.m., August 15, <br /> 1991. Mary Meays and Nick McKibbin of PHS/EHD arrived at 2:05 P.M. to observe sampling. A site <br /> inspection was made by Mary Meays prior to the arrival of Gary Mosted. Mr. Mosted measured the depth <br /> to groundwater in each well. Due to the lateness of the hour, PHS/EHD would not have been able to stay <br /> throughout the well purging to observe sampling. PHS/EHD was unable to verify that the proper equipment <br /> was present to measure sampling parameters and to maintain adequate cold storage for sample storage and <br /> transport. It was evident that good quality control/quality assurance (QC/QA) practices could not be <br /> achieved. A Notice to Abate was issued to Mr.Mosted requesting that sampling be rescheduled. A copy is <br /> enclosed for your information. <br /> Lisa Rainger, Delta Environment Project Manager, was notified August 15, 1991, of the Notice to Abate <br /> issuance. PHS/EHD was assured that QC/QA practices would be strictly adhered to in the future. <br /> Monitoring wells were sampled August 20, 1991, under inspection of PHS/EHD. The grouts surrounding <br /> the traffic boxes protecting MW2 and MW3 were noted to be severely damaged. Repair monitoring wells <br /> surface seals within 14 days from the date of this letter. Please be informed that this office requires 48 <br /> hours notice prior to any site activity. <br /> If you have any questions or comments, contact Mary Meays, EHS, of my staff at (209)468-3441. <br /> Jogi Khanna, M.D., M.P.H. <br /> Health Officer,.. <br /> Z <br /> XEnvirommental <br /> CotuIla, REHS, Program Manager <br /> Health Division <br /> :nr <br /> Enc. <br /> c: CVRWQCB - Elizabeth Thayer <br /> Delta Environmental - Lisa Rainger, Jim Brownell <br /> A Division of San Joaquin Cuunny Health CTe services <br />