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CENTRAL VA* Y REGIUNAL WATER CLIALITY CON L BOARD <br /> INSPECTION R cPC)RT <br /> 21 January 1985 <br /> DISCHARGER : Southwest Hide Company (SHC) <br /> LOCATION & COUNTY : Manteca, San Joaquin County <br /> CONTACT( S ) : Dana Means, Manager; Dave Wilcox, Mai ntenance Sup. <br /> INSPECTION DATE : 4 November, 1985 <br /> INSPECTED BY : Antonia Vorster, Philip I sorena <br /> ACCOMPANIED BY : Dave Wilcox <br /> The subject facility was inspected to ascertain its compliance with Board Order <br /> No. 80-061. <br /> OBSERVATIONS .AND COMMENTS <br /> Wastewater Ponds <br /> The facility has two ponds which receive brine wastewater used in curing ride. <br /> The ponds are lined with 20 mil liners which had been consequently covered by <br /> approximately two feet of compacted dirt. The westerly pond (Pond 2) was full <br /> and had only about six inches of freeboard left; the easterly pard ( Pond 1) , <br /> however, contained very little wastewater because it was being dried up so that <br /> salts accumulated at the bottom could be recovered. The periphery of both ponds <br /> has been planted with ice plant to prevent erosion. We sampled Pond 2 for <br /> standard minerals , COD, BOD, and ICAP analyses. The sample results (shown in <br /> Attachments A and B) indicate that the wastewater contains a IDS concentraticn <br /> of 331 ,000 mg/l which makes it a ' designated waste' according to our "Was%. <br /> Classification and Cleanup Level Determination" guidelines. <br /> Storage Tanks <br /> Four partially buried storage tanks, northwest of Pond 2 with a total capacity <br /> of 200,000 gallons, are used for storage of brine wastewater which is recycled <br /> back to the curing tanks in the production building. when the storage Tanks are <br /> tilled to capacity, the solution is drained by gravity flow to the, ponds for <br /> disposal by evaporation. <br /> A set of underground Larks with a total capacity of 3,000 gallons adJacent to <br /> the production building were built approximately four, imonths ago. The areas <br /> drained by these tanks include the following: oil and grease sump the skim <br /> ings are collected and sold to a recyciirg site) ; collection drains in the <br /> production area; a trough which collects drippings from trucks transpc:rting oil <br /> and grease. Small amounts of make-up solution for the curing tanks are drawn <br /> from these underground tanks ; lar;e amounts are drawn from the part'i311y <br /> buried tanks. <br /> EV I E W E 0 F3Y: <br /> I <br />