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STATE OFI'.:AOFORNIA GEORGE DEUKMEJIAN,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION <br /> 3443 ROUTIER ROAD <br /> SACRAMENTO,CA 95827-3098 <br /> 19 December 1989 DEC 2 2 12A <br /> ENVIRONMENTAL HEALTH <br /> PERiAiTiSERVICES <br /> Mr. Joel Rosenow <br /> USC/Beaver Chemical <br /> 1448 Shaw Road <br /> Stockton, CA 95208-0599 <br /> REPORT OF RECENT INSPECTION AND REQUEST FOR TECHNICAL REPORT, BEAVER CHEMICAL <br /> COMPANY, STOCKTON, SAN JOAQUIN COUNTY (CASE# 2795) <br /> Enclosed is a memorandum regarding the inspection of your facility and wastewater <br /> pond located in Stockton, CA. No apparent violations of your waste discharge <br /> requirements were noted during the inspection. However, analytical results from <br /> samples taken during the inspection indicate that Beaver Chemical Company (BCC) <br /> is discharging a designated waste to the wastewater pond. <br /> Since BCC is discharging a designated waste to a pond not designed to meet the <br /> requirements in Subchapter 15, Chapter 3, Title 23 of the California Code of <br /> Regulations (Subchapter 15) , BCC is required to implement a ground water <br /> monitoring program to determine if ground water quality has been impacted. If <br /> ground water has been impacted, BCC will be required to investigate and mitigate <br /> this impact. <br /> Prior to implementing the ground water monitoring program, BCC is required to <br /> do a waste characterization of the discharge to the pond, and the wastewater and <br /> sediments in the pond. BCC must implement a sampling program that characterizes <br /> its waste streams in order to determine which constituents to monitor in the <br /> ground water monitoring program and to determine if the pond contains any <br /> hazardous waste from past discharges. <br /> BCC shall submit to our office by 15 January 1990 a Technical Report that <br /> includes a sampling plan for waste characterization and a time schedule for <br /> submitting and implementing the workplan for the ground water monitoring program. <br /> The workplan shall describe how the ground water monitoring program will <br /> determine the following: a) depth of shallow groundwater beneath the pond; <br /> b) the ground water flow direction in the zone; c) the water quality in the zone. <br /> Once BCC's waste streams have been characterized and ground water quality <br /> impacts, if any, have been determined, BCC will be required to submit a ground <br /> water remedial action plan and a proposal for a long term alternative wastewater <br /> disposal . At that time, we will begin revising BCC's waste discharge <br /> requirements. <br />