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") <br />GAVIN NEWSOM <br />) GOVERNOR <br />AC/ <br />Water Boards .0 JARED BLUMENFELD <br />SECRETARY FOR <br />ENVIRONMENTAL PROTECTION <br />Central Valley Regional Water Quality Control Board <br />4 August 2021 <br />Paul Sidhu <br />3032 E Waterloo Avenue <br />Stockton, CA 95205 <br />Karamject Johal <br />10228 Hall Avenue <br />Richmond, British Columbia <br />V6X-3T9 <br />Gurpal Sidhu et at <br />1233 N Central Avenue <br />Kent, WA 98032 <br />Parmdip Johal <br />7391 Nevis Drive <br />Richmond, British Columbia <br />V7A-1J5 <br />Onkaar Dhaliwal <br />15420 SE 80th Street <br />Newcastle, WA 98059 <br />Gurpal Sidhu et at <br />5410 Staples Way <br />Linden, CA 95236 <br />WATERLOO FOOD & FUEL, 3032 WATERLOO ROAD, STOCKTON, SAN JOAQUIN <br />COUNTY, LUST CASE #390992 <br />Central Valley Regional Water Quality Control Board (Central Valley Water Board) staff <br />reviewed the following documents, submitted on your behalf by Apex Envirotech Inc. <br />(Apex): <br />Underground Storage Tank System Leak Investigation Report of Findings (UST <br />Report), dated 14 June 2021 <br />First Semi-Annual 2021 Groundwater Monitoring Report (1Q21 GMR), dated 15 <br />June 2021 <br />These documents were submitted for the Waterloo Food & Fuel underground storage <br />tank (UST) petroleum release case at 3032 Waterloo Road in Stockton (Site). In the <br />UST Report, Apex presents the results of a review of fuel inventory records for the <br />currently operating commercial petroleum fueling facility at the Site, current UST system <br />leak testing, and fuel fingerprint analysis of free product collected from Site well EW-1. <br />In the 1Q21 GMR, Apex presents March 2021 groundwater monitoring and sampling <br />data and the results of inspection of the current condition of all Site wells. <br />In the 1Q21 GMR, Apex concludes that of the 32 existing Site wells, 10 wells <br />(MW-5C/D/E, MW-6B/C/D/E, and MW-7C/D/E) are damaged sufficiently that gauging or <br />sampling cannot be completed. Wells MW-5, MW-6, and MW-7 are continuous multi- <br />chamber tube (CMT) wells, with the well casing of each being comprised of a single <br />vinyl tube with 5 chambers (A through E) with the screened interval of each chamber <br />KARL E. LONGLEY ScD, P.E., CHAIR I PATRICK PULUPA, ESQ., EXECUTIVE OFFICER <br />11020 Sun Center Drive #200, Rancho Cordova, CA 95670 I www.waterboards.ca.gov/centralvalley