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Doug Wilson <br /> September 27, 1996 <br /> Page 2 <br /> SODIUM CHLORITE RELEASES: 8590 WEST LANE AT MOSHER SLOUGH AND 8603 <br /> THORNTON nQAri AT DAVIS ROAD <br /> contained within the resultant seventeen (17) 55 gallon drums. Subsequent to this event, Don Light of <br /> Del-Tech, has removed the drums and transported them to Forward, Inc. We will forward <br /> documentation of proper disposal of this material to you upon our receipt of Forward's documentation. <br /> 8603 Thomton Road at Davis Road <br /> The nature of this release was apparently due to a coupling vibrating loose, from the inlet piping to the <br /> sanitary sewer, resulting in the spillage of approximately 40 gallons of sodium chlorite onto the <br /> ground. <br /> The release was discovered on Monday, September 9, 1996 by MUD staff making regular inspection <br /> rounds. PHS-EHD was notified of the release at approximately 1:10 p.m. followed by a facsimiled <br /> map of the facility. <br /> Our chemical service contractor, Vulcan, responded to the environmental response and cleaned up the <br /> spill, placing the excavated soil into two (2) overpack drums. Mr. Michael Kith was present during <br /> the initial soil testing to verify that the pH was within nonhazardous levels (<10 pH). Based upon Mr. <br /> Kith �, the soil was to be transported to Forward, Inc. by Del-Tech. <br /> Conclusion and Recommendarinn <br /> We are reevaluating the current method of storage of sodium chlorite for greater environmental <br /> protection, and have instituted some immediate measures to provide weekend and holiday visual <br /> inspections of our sanitary pumping station sites to provide safeguards and early detection to possible <br /> leaks. <br /> If you have any questions regarding this report, or need any additional information, please feel free <br /> to contact me or Regulatory Compliance Officer Diane Hinson. <br /> MORRIS L. ALLEN <br /> DIRECTOR OF MUNICIPAL UTILITIES <br /> MLA/DMH: <br /> CC: Michael Kith, Senior R.E.H.S., San Joaquin County Public Health Services <br /> Patricia Leary, Associate WQC Engineer, RWQCB <br /> Ken Wimberly, Utilities Training/Safety Specialist <br /> Robert Simmons, Deputy Director/Wastewater, City of Stockton MUD <br /> Chadd Hermann, Vulcan Chemical Technologies, Inc. <br />