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`A <br /> VALLEY AG <br /> At 1E SEA RC II � <br /> A <br /> June 5, 1999 <br /> FOR: Frank& Carol Borba <br /> 13845 South Brennan Road <br /> Escalon, CA 95320 <br /> PROJECT: New F&C Borba Dairy Facility <br /> NWC Escalon-Belota Road and Dodds Road -Escalon <br /> SUBJECT: Holding Pond Sizing and On-Site S it Characteristics <br /> The San Joaquin County Department of Environmental q <br /> Health has requested data and information <br /> on two parameters of the wastewater holding pond for the new F& C Borba Dairy. Specifically, <br /> the Department wants assurance that the holding pond has sufficient capacity as designed, and <br /> secondly,that the indigenous on-site soil characteristics will support a 1:1 inside embankment <br /> slope. <br /> HOLDING POND REQUIRED CAPACITY (ESTIMATED) <br /> PROJECTIONS: The following information is supplemental to the attached"SIZING A DAIRY <br /> MANURE HOLDING POND WORKSHEET." The proposed dairy may ultimately mills 1,000 <br /> Holsteins, with the support stock numbers referenced. Dry manure will be used as bedding with <br /> the remaining volume sold for off-site use. Wastewater storage duration during the rainy months <br /> must be 120 days(December-March). Solids separation will be accomplished by three separation <br /> basins to maximize separation and minimize solids accumulation in holding pond. Separation <br /> basin storage capacity for solids and liquids is not considered in the calculations. Solids <br /> separation by the separation basins is estimated at 65%. Rainfall runoff from roofed areas will be <br /> pipelined to the cropland. Majority of the concrete' areas will be covered. <br /> HOLDING POND CALCULATED CAPACITY <br /> The holding pond is proposed to be 650 ft long, 125 ft wide and 20 feet deepwith a five foot <br /> above grade embankment for a total depth of 25 feet. Freeboard to be two feet. Inside slope is to <br /> be 1:1 and outside slope to be 3:1. Embankment road to be approximately 14 feet wide. The ; <br /> following formula determines the capacity of the pr':oposed holding pond: <br /> UNIT ABBREVIATIONS <br /> LW=Liquid width, ft LW=EW- 2 x FB x S <br /> EW=Earthen holding pond width, ft LL= EL- 2 x FB x S <br /> FB =Freeboard, ft LD =ED -FB <br /> S = Side slope (1:I horizontal:vertical) <br /> LL=Liquid length, ft <br /> EL =Earthen holding pond length, ft <br /> LD=Liquid depth, ft <br /> ED=Earthen holding pond depth, ft <br /> P.O. Box 3794 Turlock,California 95381 (209)6684403 Fax (209) 668-2598 <br />