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Omega Vineyard,Phase I` <br /> Pale No.4 <br /> .. 251 Seepage Pits: <br /> ,As,indicated, the deep pit percolationtesttyas performed using analternate method where <br /> the full depth of the test hale`(25' deep) is percolated and'a clear water.rate is determined. The <br /> clear.water•rate for the 10.5 inch diameter test hole was 2.54 inches/minute. Toconvert the clear <br /> o <br /> water rate into the daily sewage-capacity,(C).of a full sized seepage pit the following formula <br /> .was used.: <br /> -CP rA,Sf(6:23 . �]d Equation(1-2) <br /> i '^j <br /> CP - Allowable,seepage pit capacity (25 foot deep),gal/day <br /> r _. . Clear waterpercolation rate far test hole,in./niin. <br /> 6.23 -Conversion factor to:`change in/min. to gal/day ' <br /> At Cross sectional area"of.test hole, inz <br /> dd Diameter of design seepage pit <br /> Diameter of lest hole <br /> ` Sf - . Sewage factor; Sacramento County recommends 4% of clear water rate <br /> Cp. = (2'.54 in/min)(86.6 in .04)(42 in./1'O.S.in:) . 220'gal/daylpit <br /> Septic Tank: <br /> The required septic tank capacity is as follows: <br /> Base Tank Capacity (BTC) 1200 gals , <br /> Average Daily Flow (ADF)' _ .350 gals <br /> _TOTAL 1550 gals, therefore use 1600 gal tank <br /> III. Conclusion.- <br /> it is <br /> onclusion'Itis proposed to utilize two (2), 50 foot long leach.lines with a 25'foot deep by 42 inch <br /> ' diameter seepage pit on the end of each line. Consequently, the total computed'capacity of the <br /> system is: <br /> Leach lines: <br /> Ctt 60 gal/day ci <br /> Seepage Pits:, O <br /> Cpt _ (3:0)(220 gal/day/pit) = 440 gal/da <br /> TOTAL = 500gal/day, > 350 gal/day(design) <br /> A <br />