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2701 Prospect Park Drive <br /> Rancho Cordova California 95670 <br /> Tel (916)444-0123 <br /> Fax (916)635-8805 <br /> (frar'j*r ; 4' <br /> www brownandcaldwell corn <br /> ir <br /> GC T <br /> October 2, 2002 <br /> : ' 1 <br /> 1 <br /> Mr Terry Tarditi <br /> T&T Trucking,Incorporated <br /> 11396 North Highway 99 <br /> Lodi, California 95240 017-21417-001/1 <br /> Subject Second and Third Quarters 2002 Groundwater Monitoring Report, <br /> 11396 North Highway 99,Lodi, California <br /> Dear Mr Tarditi <br /> Tits letter report transmits results of the second and third quarter 2002 <br /> groundwater monitoring events for the referenced site A copy of this report is <br /> being submitted to the San Joaquin County Public Health Services Environmental <br /> Health Division (PHS/EHD) Quarterly sampling and reporting is required by the <br /> PHS/EHD, as outlined in their April 12, 1999 letter to T&T Trucking The next <br /> • monitoring event is scheduled for October 2002 and the report is due January 2003 <br /> Work Performed These Quarters (April—September 2002) <br /> Brown and Caldwell (BC) measured water levels and collected groundwater <br /> samples for the second quarter on June 25, 2002 and the third quarter on August <br /> 27, 2002 These sampling events follow BC's Workplan for Quarterly Sampling of <br /> Monitoring Wells This Workplan was approved by the PHS/EHD <br /> Some minor well maintenance work was completed on well MW-4 during the <br /> third quarter monitoring event Approximately 2 feet of cement was placed inside <br /> the well annulus to minimize the risk of breakage during sampling activities <br /> Status of Investigation and Cleanup Activities <br /> Four groundwater monitoring wells have been installed at the site as shown in <br /> Figure 1 Groundwater contamination extends from the former source area <br /> (4,000-gallon UST) to beyond the most southerly well (MW-3) Two additional <br /> groundwater monitoring wells are recommended to further define the lateral <br /> extent of petroleum hydrocarbons to the west and south of MW-3 The proposed <br /> . locations are shown as MW-5 and MW-6 on Figure 1 <br /> Thu report ntzrpreparrd in accordance weth the standards of MY enoironmental conrulirng indusiry at The kine it xwpreparrd It should not be <br /> rrhed upon by parties other than those for whom it mu prrpared,and then on#to the extent of the scope of nrork which was autbon.Zed This <br /> abort does not guarantee that no additional environmental contamination beyond that desenbed in ibis report exirtr at the site <br /> \\Bcsac02\pm1cets\21D00\21417\Reports\2ndand3rd 02gtrdoc <br /> En v i r o n mental E n g i n e e r s tr C o n s u l t a n t s <br />