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zs -.._..r m-�s _ - - _ v:' x <br /> f <br /> _ rr <br /> Gn <br /> 1 <br /> Brown and Caldwell' <br /> J a Consultants <br /> fl 723 S Slim <br /> I! H3rramenlu <br /> Ca I]turn la 95814.7092 Ii f <br /> 2,1 <br /> rAX(MI 444,0437 <br /> 1 <br /> APR 11 1990 <br /> ENVIRONMENTAL HEALTH <br /> April 1I, 1990 PER1MYSERVIcpS <br /> f <br /> Mr. Greg Lyon <br /> F Environmental Health Division <br /> San Joaquin County,Public Health Services <br /> I Post Office Box 2009 <br /> Stockton, California 95201 017-3214-52 <br /> 7 ff <br /> ` Subject: Permits for Additional Work at ARCO Station 434,501 Kettleman Lane, Lodi <br /> Dear Mr. Lyon: <br /> ' Brown and Caldwell Consultants requests i reel permits for additional work to be done at ARCO <br /> Products Company(ARCO)Station 434. We anticipate conducting previously approved drilling <br /> and fieldwork in three phases: (1) installation of eight on-site vapor wells, <br /> (2) installation, <br /> I' replacement(destruction of on-site monitoring wells, and (3) installation of additional off-site <br /> wells. We are also in the process of gaining permission to install one on-site extraction well, as <br /> described and shown in Appendix A. Enclosed am the permit application, permit fee, city <br /> encroachment permits, Ietter of permission for one off-site monitoring well, letter of <br /> acknowledgement from ARCO, Copy of the site safety and health plan, and a map showing <br /> proposed well locations for the additional work described above. <br /> 3 We anticipate the on-and off-site wells and on-site vapor wells to be installed between April 16, <br /> { 1990 and April 27, 1990. <br /> r We are alsouestin r <br /> � g permission to sample,_as_descrsbed in-Table-I.--Brown and Caldwell does ------------;---- -- -- <br /> - — — not-think-'it is necessary to collect soil samples for laboratory analyses at 5-foot intervals for <br /> every well to be installed for the reasons presented in Table 1. <br /> g <br />