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California Regional Water Quality Contral Board r <br /> t Genual Valley Region <br /> Katherine Hart, Chair <br /> 11020 Sun Center Drive,;200,Rar=ho Cordova,California 95570-6114 <br /> Linda S.Adams (916)464-3291 -FAX(9 16)4544545 Edmund&Brown_k <br /> Acting Secretary for htipJlwww.waterboarcL-,ca-govlcentralvalley C-ovemor <br /> Environmental Protection <br /> 21 July 2011 <br /> John Fiscalini <br /> 7231 Covert Road <br /> Modesto, CA 95358 <br /> PERMITTING OF CO-DIGESTION PROJECT, FISCALINI FARMS, 484-8 JACKSON ROAD, _ <br /> MODESTO, STANISLAUS COUNTY, WDID NO. 5SSONCO0123 <br /> The Regional Water Quality Control Board, CerAral Valley Region (Cent Valley Water <br /> Board) has reviewed the agenda items discussed in the meeting of 16 .tune 2011 regarding <br /> permitting the use of co-digestate materials in the digester at Fiscalini Farms` The co- <br /> digestion project seeks to investigate the viability of using digester feed materials other than <br /> those currently permitted. As such, the Central Valley Water Board agre�..s toallow the project _ <br /> to proceed With the stipulation that the following issues be addressed. <br /> The salinity concentration in the lagoon must remain Within the limits prescn-bed in Waste <br /> Discharge Requirements Order No. R5-2008-0100 (WDR). Specifically, the salinity <br /> concentration in the lagoon will not exceed 1,069 mg/i total dissolved solids_(TDS) in the winter_ <br /> (December— March) or 4,736 mg/{ TDS in the summer (April — November)_ To monitor <br /> compliance with :this requirement, the TDS concentration in the lagoons must be measured on <br /> a monthly basis during the entire time the project is conducted and the resula s forwarded to tfte <br /> Central Valley Water Board office. <br /> The project proposes to research the use of various different feed mated in the digester, <br /> e.g., fats, oils,-and grease (FOG), winery lees-, tomato vines, etc. A schedule must be <br /> submitted that presents when each type of feed material will be added to the digester, the <br /> source of the feed material, and the current disposal method of the feed nyaerial when not <br /> .used as a co-digestate. Regular updates of the schedule and progress mustfoliow initiation of <br /> the project. <br /> if you have questions regarding the requirements presented, pleas e.contact Charlene Herbst <br /> at'9 -464-4724 or cherbst waterboards_ca.gry. <br /> Pamela C. Creedon <br /> Executive Officer <br /> Cafifomia Fnviranmentaf Protection Agency <br /> C6.Recycled Paper <br />