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Worksheet for Estimating Landscape Water Needs <br /> Step 1: Calculate the Landscape Coefficient(KL) <br /> XL formula::Kr='k5 x kd x kmc............................ <br /> - ks=:species factor <br /> kd= density factor <br /> kms= microclimate factor <br /> k5= 0.8. (range= 0.1-0.9) (Turfgrasses= 80% of Eto) <br /> kd= 1.0 (range = 0.571.3) (Complete canopy and single vegetation type) - <br /> kmc= 1:1 (range-= 0.5-1.4) (Open area, with buildings, extraordinary winds) <br /> `KL=-0.8x1.0x1.1 0.88. <br /> i (ks) (kd) (kmc) <br /> Step 2. Calculate Landscape Evapotranspiration (ETL) <br /> f ETL formula: ETL= KLx E10.......:...................KL= landscape coefficient <br /> ETO.= reference evapotranspiration <br /> KL= 0.88 (calculated in Step 1) <br /> ET-0=49.38 inches (From September 2008 through August 2009) <br /> ETL 0.88 x 49.38 =43.45 inches. <br /> ( <br /> KL ETO) ( ) <br /> i <br /> Step 3. Calculate the Total Water to Apply (TWA) <br /> TWA formula: TWA = ETL..................... ........... ETL= landscape evapotranspiration <br /> IE .................................. IE = irrigation efficiency <br /> ETL=43.45 (calculated in Step 2) <br /> IE =0.75 (Irrigation.Efficiency estimate of.7.5%) <br /> - TWA= ETL=46.87 inches= 58 inches <br /> IE 0.75 <br /> The total water needed (ininches) to be applied to a deep-rooted grass planted over the disposal area <br /> . iis.calculated to Abe 5 8 inches, or 4.8 feet. The total water needed-to be applied (in gallons) over the � <br /> E disposal area to keep a grass alive during any given year='S0.in. x 8,750 W x 0.62 gals/ft'-inch= <br /> 314,650 gallons. :This volume can be considered to be water savings if disposal.area irrigation is not <br /> supplied. <br /> III. NITRATE LOADING STUDY FINDINGS <br /> A. WASTEWATER FLOW VOLUME PROJECTIONS AND CHARACTERISTICS <br /> Domestic.wastewater flow from the Winery facility will originate from four different locations within the <br /> winery itself: OO The Crush Office Building, OO The Dry Goods Building,.QQ The Guard/Scale House <br /> Buildings, ® The Office Trailer Buildings, and s0 The Maintenance Building.. Currently, <br /> ._wastewater influent (blackwater from toilets and urinals, and graywater from sinks and two <br /> showers)flows under gravity from these buildings into concrete tank lift..stations with comminutor <br /> (grinder)pumps, This effluent is then pumped to tanks for.eventual dispersal-through the existing <br /> mound disposal system. <br /> Additionally;quick food preparation may occur within "kitchen/break" areas of some of these <br /> :buildings. It-is important that all food and food by-products be handled'as a solid waste and not be <br /> disposed of into.the septic system. <br /> 13 <br /> Chesney Consulting <br /> 14 <br /> - f <br /> Chesney Consulting <br />