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Californi:Kegional Water Quality Cool Board <br /> Central Valley Region ( <br /> Robert Schneider,Chair <br /> Dan Skopec Arnold <br /> Acung Secretary Sacramento Main Office Schwarzenegger <br /> 11020 Sun Center Drive#200,Rancho Cordova,California 95670-6114 Governor <br /> Phone(916)464-3291 •FAX(916)464-4645 <br /> littp://www,waterboards.ca.gov/centralvalley <br /> RECEV1 ICE DD <br /> APR 2 1 2006 <br /> 19 April 2006 <br /> ENVIRUM'NlEid"i 11EALTN <br /> PERIv11T/SERVICES <br /> Cary Keaten Glenn Gebhardt <br /> City of Lathrop Califia LLC <br /> 16775 Howland Road 73 W. Stewart Road <br /> Lathrop, CA 95330 Lathrop, CA 95330 <br /> RECYCLED WATER EXPANSION REPORT REVIEW— PHASE 2, MBR WASTEWATER <br /> FACILITY, LATHROP, SAN JOAQUIN COUNTY <br /> Staff has reviewed the February 2006 Recycled Water Expansion Report— Phase 2 (RWER) <br /> prepared by Nolte Associates, Inc., which was submitted on 10 March 2006, and determined <br /> that additional information is required. The RWER was required by Discharge Specification 13.2 <br /> of Waste Discharge Requirements (WDRs) Order No. R5-2005-0045, which states: <br /> The monthly average flow may increase to 750,000 gpd after the Executive Officer <br /> approves the report required by Provision G.1.g. <br /> Provision G.1.g is reprinted below; to allow discussion of the requirements, staffs comments <br /> are identified with the bullet number in the table following the quotation. Provision G.1.g states: <br /> g. At least 60 days before the Discharger wishes to begin a discharge of up to 750,000 gpd, <br /> the Discharger shall submit a Recycled Water Expansion Report, which shall contain the <br /> following: <br /> i. An updated water balance. <br /> ii. At least two groundwater well sampling events at wells installed at the new land <br /> application areas and/or recycled water storage ponds. It is the Discharger's <br /> responsibility to submit, as needed, the Phase 11 Groundwater Monitoring Workplan <br /> and the Phase 11 Monitoring Well Installation Report in accordance with a schedule that <br /> allows the sample event data to be included in the Recycled Water Expansion Report. <br /> iii. Documentation that notification signs are installed as required by Water Recycling <br /> Specification E.3. <br /> iv. Updates to the As Built Report; Recycled Water Application Plan; and SSO Plan. <br /> v. Confirmation that all proposed land application areas listed in Finding No. 28 overlie <br /> groundwater with a TDS concentration of 1,000 mg/L or greater. <br /> California Environmental Protection Agency <br /> pia Recycled Paper <br />