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Y <br /> GOVERNOR0SW <br /> GAVIN NEVlSOtA <br /> CALIf011MIA DARED BLUMENFELD <br /> SECRETARY FOR <br /> Water Boards ENVIRONMENTAL PROTECTION <br /> Central Valley Regional Water Quality Control Board <br /> 2 December 2019 <br /> Bog Long <br /> Sierra Lumber Manufacturing Inc. <br /> P.O. Box 6216 <br /> Stockton, CA 95202 <br /> RESPONSE TO WELL DESTRUCTION WORK PLAN, SIERRA LUMBER CASE #1 & <br /> CASE #2, 375 W. HAZELTON AVENUE, STOCKTON, SAN JOAQUIN COUNTY, <br /> LUST CASES #390257 & #391168 <br /> Central Valley Regional Water Quality Control Board (Central Valley Water Board) staff <br /> received the Well Destruction Work Plan dated 26 November 2019, submitted on your <br /> behalf by Advanced Geo Environmental Inc. (AGE) for the Sierra Lumber Case #1 and <br /> Case #2 underground storage tank petroleum release cases at 375 W. Hazelton <br /> Avenue in Stockton (Site). AGE proposes to destroy all remaining wells associated with <br /> both Cases as summarized in the table below. <br /> Total Casing Borehole Destruction Destruction <br /> Case No. of Well Type (No.) List of Wells Diameter <br /> Area Diameter Method Depth <br /> Wells (Type) <br /> (in) (in) <br /> Monitoring Well MW-1 thru 2 (PVC) 8 or 10 <br /> (8) MW-8 <br /> Soil Vapor VW-1 thru <br /> #1 19 Extraction Wells VW 6 2 (PVC) 8 <br /> (6) <br /> Air-Sparge Wells AW-1 thru 2 (PVC) 8 1ft below <br /> (5) AW-5 total <br /> MW-9, MW-12, Over-drill installed <br /> Monitoring Well MW-13, MW-15 2 (PVC) 8 <br /> (10) depth <br /> thru MW-21 <br /> #2 15 Dual-Phase DPE-1 thru <br /> Extraction Wells DPE-4 4 (PVC) 12 <br /> (4) <br /> Soil Gas Wells SV-1 0.25 4 <br /> (1) 1 (Teflon) <br /> in= inch; PVC= polyvinyl chloride <br /> KARL E. LONGLEY SCD, P.E., CHAIR I PATRICK PULUPA, ESQ., EXECUTIVE OFFICER <br /> 11020 Sun Center Drive#200, Rancho Cordova,CA 95670 1 www.waterboards.ca.gov/centralvalley <br />