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Special Response Requested by the San Joaquin County Public <br /> } <br /> Health Services <br /> Reference the site approval comments, paragraph A. <br /> California Regional Water Quality Control Board <br /> Waste Discharge Requirements <br /> Order No. 90-301 <br /> j This order was insured to Joe DaSilva, d.b.a. as the Joe DaSilva Dairy, 27424 E. Dodds <br /> Road, Escalon, California. <br /> This order was issued 2 November, 1990. The order was a result of a discharge of <br /> rainfall runoff that was contaminated with manure that had apparently been pumped from # <br /> t t the storage lagoon. <br /> There was a notification of a violation to the order on 7 March, 1991. The violation <br /> consisted of manure and manure water over flowing from the manure management settling <br /> pond. Apparently, a pipe that conveyed the manure water from the settling pond to the <br /> storage lagoon had plugged, causing the overflow. The effluent flowed over the south <br /> bank of the settling pond into a road side ditch, then into a runoff return ditch and <br /> eventually into the Angel Drain, which in turn, flows into the Fairbanks Lateral. <br /> There have been three major repairs to the site manure management system designed to <br /> curb similar discharges. <br /> One, as a result of the first discharge, a field runoff return ditch and lift pump to return <br /> the runoff into the lagoon was installed. <br /> ` Second, an emergency overflow between the settling pond and the lagoon has been <br /> installed. It is designed in the case that if the pipe between the settling pond and the <br /> lagoon were to plug again, the effluent will overflow to the lagoon rather than flow out of <br /> the storage system as it had before. i <br /> Third and most importantly, a second and larger lagoon has been constructed to retain <br /> facility rainfall runoff water and effluent from the dairy for a period of 180 days plus the <br /> facility runoff as a result of a 25 year, 24 hounrainfall event. <br /> The calculated capacity for phase one is: <br /> Effluent storage- 8,655,481 gallons* <br /> Runoff from a 25 year, 24 hour storm- 1,775,241 gallons* <br /> R Total storage required- 10,430,722 gallons* <br /> The storage at the site is: <br /> Old existing lagoon- 3,922,000 gallons* <br /> New lagoon- 8,922,000 gallons* <br /> # Total storage- 12,192,000 gallons* <br /> *Reference calculation charts for volumes. <br /> # The following pages are copied of the notices from the California State <br /> Water Quality Control Board: <br /> ®Western Design/David Avila 2000 42 <br /> Lt � <br />