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ITE OF CArffORNIA Ak GEORGE DEUKMEJIAN.Ga,emo, <br /> C�;L.IfORNIA REGIONAL WATE QUALITY CONTROL BOARD— <br /> ,CENI4IAL VALLEY REGION <br /> 3443 ROUTIER. ROAD /� j�JgiT <br /> SACRAMENTO, CA 95827-3098 ® 'f = I� 1',9 L <br /> �1 4 47 <br /> 19 August 1987 <br /> nuc 2 z C 'jsR;, <br /> ENVIROMENTAL HEALTH <br /> Mr. James Harvey FERMIT/SERVICES <br /> Dallas Corporation <br /> 6750 LBJ Freeway 12- 2-0 Vim/ ' ) <br /> Dallas, TX 75380-9046 <br /> FIELD METHODS AT OVERHEAD/LODI DOOR COMPANY (O/LDC) INVESTIGATION <br /> On 14 August 1987 , Regional Board staff visited the O/LDC site to <br /> observe J.H. Kleinfelder and Associates field techniques and to <br /> obtain duplicate samples of ground water. P_ copy of the <br /> inspection report is enclosed. <br /> During the inspection, errors in measuring depth to water in <br /> wells were observed. The nature of these errors is described in <br /> the inspection report. Since similar errors may have occurred in <br /> the past, and the errors cast doubt on previously collected water <br /> level information, the problem must be addressed. <br /> Please submit a technical report discussing in detail the <br /> procedures followed in measuring water levels in the O/LDC <br /> monitoring wells. Estimate the number of times such errors may <br /> have occurred in the past, and analyze the extent to which these <br /> errors could affect the calculated water table gradients. <br /> Include in the report copies of all original field notes that <br /> relate to water level measurements. <br /> THIS REPORT IS REQUESTED PURSUANT TO SECTION 13267 OF THE <br /> CALIFORNIA WATER CODE AND SHALL BE SUBMITTED BY 1 SEPTEMBER 1987 . <br /> If you have any questions please contact John Woodling at (916) <br /> 361-5729 . <br /> GREG K. VAUGHN <br /> Senior Engineer <br /> JKW:jkw <br /> cc: Mr. Alan Friedman, Department of Health Services, Sacramento <br /> Mr. C. Leland Hall , San Joaquin County Local Health District, <br /> Stockton <br /> Mr. Kent Zenobia, J.H. Kleinfelder & Associates, Sacramento <br />