Laserfiche WebLink
SAN J O A Q U I N Environmental Health Department <br /> — COUNTY------- Linda Turkatte, REHS, Director <br /> Greatness grows here• Kasey Foley,REHS,Assistant Director <br /> PROGRAM COORDINATORS <br /> Robert McClellon. REHS <br /> Jeff Carruesco, REHS,RDI <br /> Willy Ng,REHS <br /> Muniappa Naidu, REHS <br /> Michael Kith,REHS <br /> September 12, 2019 <br /> Don Chesney <br /> Chesney Consulting, Inc <br /> P.O. BOX 3794 <br /> Turlock, CA <br /> RE: Soil SuitabilitylNitrate Loading Study <br /> 3732 E. Carpenter Rd, Stockton <br /> APN 179-160-50 SR0080912. <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed the Soil Suitability/Nitrate <br /> Loading (SSNL) Study, dated June July 11, 2019 and submitted on July 18, 2019. The SSNL Study was <br /> prepared to review the suitability of the above noted parcel for onsite wastewater treatment system (OWTS) <br /> usage, including the potential impact of nitrate to groundwater, for the proposed Wat Dhammararam Buddhist <br /> Association Heaven Temple Project at the above noted location. The EHD has the following comments: <br /> Precipitation Data (Table 4). The values for annual precipitation values for the South Stockton area in Table <br /> 4 (page 5) are labeled °2 years in 10" data from Soil Survey of San Joaquin County. They are stated to be <br /> conservative (i.e., lower) as compared with average precipitation amounts; but they are actually significantly <br /> higher than average annual precipitation amounts for South Stockton area. The total annual amount equals <br /> 18.92 inches, well above the 5 years average for annual precipitation for Manteca (11.75 inches), according <br /> to California Irrigation Management Information System (CIMIS). The total given at the bottom of Table 4 is <br /> not the sum of the monthly listed values. It may represent the "2 in 10 years" annual total, which is different <br /> from the total of the individual monthly values list. The average precipitation values should be used in the <br /> nitrate loading analysis instead of the "2 in 10 years" values listed in Table 4. <br /> The Estimated Recharge Value. In Table 4, the estimated annual value for potential deep percolation is <br /> 8.67 inches. According to CIMIS, the 5 years average (2014-2018) for estimated deep percolation in that <br /> area is 3.64 inches. <br /> Annual Rainfall- Recharge Value. In Table 4, the estimated value for rainfall-recharge ("deep percolation") <br /> is given however, in the calculations that follows (top of page 9), a value of 13 inches per year is inserted for <br /> R, without any rationale or reference. See attachment. <br /> Please submit addendum to SSNL to address the above comments to END. <br /> If you have any questions please contact Michael Kith, REHS, at (209) 468-3444 or mkith(cDsjgov.orq . <br /> Michael Kith, REHS <br /> Program Coordinator <br /> Cc: Wat Dhammararam Buddhist Association-3732 E. Carpenter Rd, Stockton, CA 95215 <br /> 1868 E. Hazelton Avenue Stockton, California 952051 T 209 468-3420 1 F 209 464-0138 1 www.sjcehd,com <br />