Laserfiche WebLink
V <br /> 410410-0-0 <br /> TABLE 3 <br /> PRECIPITATION AND Eto DATA FOR STOCKTON, CA <br /> Month 2 Years in 10 will have more Fin Average Potential Deep <br /> precipitation than: (in/mo) Percolation (in/mo) <br /> (in/mo) (in/day) <br /> January 4.42 1.24 0.04 3.18 <br /> February 3.20 1.96 0.07 1.24 <br /> March 3.43 3.41 0.11 -- <br /> April 1.92 5.10 0.17 <br /> May 0.50 6.82 0.22 - <br /> June 0.25 7.80 0.26 <br /> July 0.23 8.06 0.26 - <br /> August 0.40 7.13 0.23 <br /> September 0.76 5.40 0.18 <br /> October 1.39 3.72 0.12 - <br /> November 3.31 1.80 0.06 1.51 <br /> Decembe 1 3.67 0.93 0.03 2.74 <br /> TOTALS (in.) 1 18.92 53.4 1 ---- 8.67 <br /> This chart illustrates that evapotranspiration far exceeds precipitation, even when using higher <br /> rainfall data that exceeds normal rainfall data by 56%. Only in the months of January, February <br /> November and December would deep percolation potentially occur. This data illustrates a relatively <br /> high potential for there to be significant evapotranspiration(or bare soil surface evaporation) from a <br /> wastewater disposal system design that may take advantage of evapotranspiration during favorable <br /> months of the year. <br /> III. NITRATE LOADING STUDY FINDINGS <br /> A. WASTEWATER FLOW VOLUME PROJECTIONS AND CHARACTERISTICS <br /> In accordance with EHD requirements for Studies such as these in which there is no formally <br /> proposed project, the Nitrate Loading Study must quantify the number of people the subject parcel <br /> can support(employees, customers, etc. for a commercial project), without exceeding the Maximum <br /> Contaminant Level (MCL) for nitrate. The MCL is 10 ppm when reported by the laboratory as <br /> nitrate-nitrogen, and 45 ppm when reported as nitrate. <br /> 7 <br /> Chesney Consulting <br />