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N <br /> mol)MCR ENGINEERING INC. <br /> MEM PLANNING•ENGINEERING•SUAVEYING <br /> September 10,2009 <br /> Thomas Gau <br /> Chief Deputy Director of Public Works <br /> San Joaquin County <br /> 1810 E.Hazelton Ave. <br /> Stockton,CA 95205 <br /> Subject: Stockton Golf&Country Club—Sewer Service <br /> bear Tom, <br /> As you know, the Stockton Golf & Country Club (SGCC) would like to explore the possibility of connecting to the <br /> sewer system operated by the Pacific Garden Sanitary Sewer District(PGSSD),and thus eliminate the need for their <br /> on-site septic system. Below is our proposal: <br /> Sewer Demand: Average daily sewer demand from the Golf Course is approxim tely 6,037 g d. Sewer will be <br /> pumped into the PGSSD system at a rate of 20 gpm(approximately 8%of the capacityof-th"xisting sewer line). At <br /> this rate, the system will need to pump approximately 5 hours per day to meet the_daily_demand of the golf.course. <br /> We are proposing to put controls in place that will limit the pumping to off-peak periods. <br /> Sewer ualit : Sewerage from the golf course is generated by the clubhouse that includes three dining rooms, <br /> conference rooms, fitness center, locker rooms, pro shop and bathrooms, as well as the pool house. The current <br /> sewer collection system includes grease interceptors that are regularly maintained. <br /> Description of Prosed System: SGCC would abandon their existing leach fields and remove the existing effluent <br /> pumps. Two new raw sewerage pumps (Orenco PSE 4011)would be installed in the first of the six existing 2,000 <br /> gallon septic tanks. Ther six tanks-would:bei interconnected so that:MIA 2;000-gallons of-storage-would:be:accessible r <br /> Ito..the.system:-The new pumps would be connected to the existing 2 inch diameter effluent disposal force main. The <br /> force main will be abandoned from the north end of the driving range to the leach fields and a new 3 inch diameter <br /> force main will be installed from that point to the point of connection. Outflow will be discharged into a new epoxy- <br /> coated manhole placed near the existing manhole in the PGSSD line. A short gravity line (6 inch diameter) will <br /> convey the flow from the new manhole into the existing PGSSD manhole. A flow sensor will be installed in the <br /> PGSSD system, with radio controls that will communicate with the pump station and disable the pumps during peak <br /> flows in the PGSSD line. Please see the attached exhibit depicting the improvements just described above. <br /> If you have any questions or concerns about our proposed method of connection, please do not hesitate to call me <br /> directly at the phone number below. <br /> Sincerely, <br /> Tony B. Marshall, P.E. <br /> Principal <br /> Cc: Bob Young,General Manager,Stockton Golf and Country Club <br /> 1242 DUPONT COURT • MANT'ECA, CALIFORNIA 95336 •, 209.239.6229 FAX 209.239.8839 <br />