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- <br /> UIN <br /> � & &� y� � H | N <br /> �������l��UU/ |� ����'�������t�U Health Department <br /> ' "-_- _'' '_ <br /> --00UNTY <br /> --- Jajit Kang, REHS, Director <br /> Greatness gpuyx here. mvmappnwaiuu,neoaAssistant Director <br /> PROGRAM COORDINATORS <br /> Jeff Canoeoco,Rs*a.RD] <br /> Willy Ng,nsHn <br /> Steven nmh.Rs*u <br /> Elena Manzv.REHS <br /> Natalia Suuuotnmova.nsHm <br /> August 23. 2U2S <br /> Angela Ferreira ORIGINAL <br /> 1153 SGolden Gate Ave <br /> ~~°"�°�m� <br /> Stockton, CA952O5 <br /> RE: Soil Suitabi|itv/NitnateLoading Study <br /> 1153 S. Golden Gate Ave, Stockton <br /> APN: 1S7'13D'34. 3ROO87O38 <br /> The San Joaquin County Environmental Health Department (EH[)) has reviewed the Soil Suitability/Nitrate <br /> Loading Study (SSNL) dated August 2. 2023 for the above noted location and has the following comments <br /> for your consideration. <br /> The SSNL was prepared to determine the suitability of the above noted parcel for onsite wastewater treatment <br /> system (OVVTG) usage and the potential long-term nitrate loading impact to groundwater from the proposed <br /> second unit dwelling. <br /> Based on the information provided the EHD can make the following findings: <br /> a. According tothe S8NL. the estimated nitrate loading from existing and proposed [)VVT8 usage is <br /> 18.22 mg/Lasnitrate-nitrogen and the maximum contaminant level of1Omg/L-N, EHDwill require <br /> the mitigation of nitrate-nitrogen through an engineered Onsite Wastewater Treatment System. <br /> b. Percolation test conducted on August 11, 2023 yields a percolation rate of 3.79 minutes, At this <br /> rate an 20' soil separation is required between bottom of dispersal field and the groundwater. <br /> Groundwater is reported at 50 feet below surface grade. /8on Joaquin County [)V\/TS Standard <br /> Table 1.10.2\. <br /> o. The OWTS and its 100% replacement areas shall meet all required minimum setbacks stated in <br /> San Joaquin County (OVVTS) Standard and Well Standard, <br /> d. A Registered Civil Engineer shall submit complete engineering design plan to EHDfor approval <br /> prior to issuance of building permit, Fee will be based on the current fee schedule at time of <br /> payment. <br /> If you have any questions please contact Nasaem Ahmed, Senior Registered Environmental Health <br /> Specialist, Cdnahnned@jgovorg or (209) 616-3018 <br /> Steven Shin, F<EHS <br /> Program Coordinator <br /> CC.- Live Oak GeoEnvinonmental-4O7 VV. Oak Gtnset, Lndi, CA 95240 <br /> 1888E. Hazelton Avenue | Stockton California QS2051 T 209468'34201 F 209 464-0138 1 vwww.sjgov.org/ehd <br />