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STATE OF CALIFORNIA <br />CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br />CENTRAL VALLEY REGION <br />3443 ROUTIER ROAD <br />SACRAMENTO, CA 95827-3098 <br />21 February 1989 <br />Mr. Robert W. Edson <br />Technical Services Manager <br />J.R. Simplot Company <br />Post Office Box 198 <br />Lathrop, CA 95330 <br />GEORGE DEUKMEJIAN, Governor <br />o� <br />0 <br />FEB 2 3, '1989 <br />[iv1 „?Oi 1iv,L-NTAL HEALTH <br />PERMIT / SERVi(--ES <br />PRELIMINARY REPORT, UNDERGROUND FUEL STORAGE TANK SITE INVESTIGATION <br />J.R. SIMPLOT COMPANY, SAN JOAQUIN COUNTY <br />We have received the subject report. We approve of the work proposed in the <br />report. My only comment is that, as shown in Figure 6, there is only one <br />proposed monitoring well and one proposed soil boring which is truly <br />downgradient. When the gradient is ascertained from these wells to be <br />installed, additional wells and/or borings may be required. <br />We are sorry that this reply to .your letter and report took so long. If you <br />have any questions, please call me at (916) 361-5634. <br />/ I k( ' <br />-f, <br />DANIEL T. WARD <br />Project Engineer <br />DTW• jj <br />cc: Mr. Relly Briones, Toxic Substances Control Division, Department of Health <br />Services, Sacramento <br />�NI�. Diane Hinson, San Joaquin Local Health District, Stockton <br />