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RLCr05-1994 16:12 FROM Public Works TO 94640138 P.05 ___ ___ _......,�....-�..��.�.,-�wvrwuuOr9EY- ____--____—___ �P/-�xeaten:LV May 1994!1:54- PW 1 of7 CALIFORNIA REGIONAL WATER QUALITY-CONTROL BOARD CENTRAL VALLEY REGION ORDER NO. WASTE DISCHARGE REQUIRELIENTS FOR CITY OF LATHROP AND CROSSROADS SANITARY CORPORATION LATHROP INDUSTRIAL WASTEWATER TREATMENT PLANT SAN JOAQUIN COUN'T'Y The California Regional Water Quality Control Board, Central Valley Region, (hereafter Board)finds that I. The City of Lathrop submitted a Report of Waste Discharge. dated 17 December 1993, and additional information, dated 9 February 1994, and I 1 Aprill 1994. The property(Assessor's Parcel No 241-390-15)is owned by Crossroads Sanitary Corporation. The City of Lathrop and Crossroads Sanitary Corporation are hereafter jointly referred to as Discharger. 2. Crossroads Sanitary Corporation is owned by Crossroads Ventures,a California General Partnership. CIIF Associates Limited Partnership(a Delaware Limited Partnership), made up of Copley Advisors, Tue. (a Massachusetts Corporation)and various Limited Partners comprise one General Partner of Crossroads Ventures. KV. Invesstors(a California Limited Partnership). made up of Kearney Ventures, Ltd. (a California Corporation).Timothy Murphy(Limited Partner), and John D'Arcy(Limited Partner),comprise the managing General Partner of crossroads Ventures. 3. The Discharger proposes to build and operate a wastewater collection,treatment, and disposal system. and provide sewerage service to a 500 acre development composed of commercial, warehousing and light industrial activities. 4. The treatmentplant proposed by the Discharger will consist of an extended aeration activated sludge process, and chlorination. Effluent from the plant will be discharged to a designated disposal area, that will ultimately consist of 2I.1 acres of ponds.. Sludge will be dewatered by vacuum-assisted drying beds. Ultimate sludge disposal is proposed to be to land for soil amertdmeut The Report of Waste Discharge describes the effluent discharge to ponds as follows: A Flow F-sdmated MTime To Reach zaatllly vg 1s�ttd.Dl� Ph Gs�Cana'ityy'�eaiSta^«'!t I0.2 mgd T2 acres 5 years 0.4 mgd 14.2 acres 10 years III 0.6 mgd 21.1 acres 15 years Daily Peak Wet Weather Flow(atter completion of Phase III) 1.2 mgd chustit]fSAt EMREWJ 'oneget=n„ BODI 20 mg/l Total Suspended Solids 20 mg/I TO si Nitrrtn 10 mgll I 5-Day. 20'C biochemical oxygen demand 5. This order will establish requirements for the Phase I flow and disposal capacities only.