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"'°nEnvironmental <br />. SAN JOAQUIN <br />Health Department <br />I.T J061 -COUNTY— <br />Jasjit Kang, REHS, Director <br />Muniappa Naidu, REHS, Assistant Director�oF <br />Greatness grows here. <br />PROGRAM COORDINATORS <br />Robert McClellon, REHS <br />Jeff Carruesco, REHS, RDI <br />Willy Ng, REHS <br />Melissa Nissim, REHS <br />Steven Shih, REHS <br />September 1, 2021 <br />TIM JOHNSTON <br />ACORN ONSITE, INC. <br />2288 BUENA VISTA AVENUE <br />LIVERMORE, CA 94550 <br />RE: Engineered Onsite Wastewater Treatment System <br />11668 S. Union Road, Manteca <br />APN 20403007, SR0083935 <br />The San Joaquin County Environmental Health Department (EHD) has reviewed the engineered Onsite <br />Wastewater Treatment System (OWTS) plans and the corresponding addendum for the above noted <br />location and has the following comments for your consideration. <br />The EHD concurs with the engineered OWTS design plans and the corresponding addendum dated <br />August 10, 2021 with the following conditions: <br />1) Obtain a Residential -Engineer Designed Septic System permit prior to construction. An inspection <br />of the engineered OWTS is required, a minimum of 48 hour advanced notice is required to schedule <br />inspection. An issued building permit is required to issue an engineered OWTS permit. <br />2) The Engineered OWTS shall be installed and maintained in accordance with the Engineered OWTS <br />Plan addendum (see Norweco Bio -Kinetic Models 960 and TNT Owner's Manual): .Inspect aeration <br />chamber every 6 months for excessive solid discharge, and inspect pre-treatment chamber every 3 <br />years (pre-treatment chamber should be pumped every 3 to 5 years depending on usage) <br />3) An Annual Operating Permit is required for the engineered OWTS (SJC OWTS 2.10.1-2.10.3). <br />4) Influent and effluent sampling of the OWTS for Nitrate -Nitrogen is required quarterly, and a report <br />submitted to the EHD annually (State Water Resources Control Board Order WQ 2014-0153-DWQ, <br />Attachment C3-C4). The samples shall be analyzed by a state certified lab. <br />5) Onsite well water sampling is required on an annual basis for Nitrate -nitrogen. Samples shall be <br />analyzed by a state certified lab and a copy of the results submitted to the EHD. <br />If you have any questions or comments you may reach Aaron Gooderham, REHS, at <br />agooderham(a-)sigov.orq or (209) 616-3062. <br />�S5tev4enShoih, <br />EHS <br />Program Coordinator <br />CC: Moises Chavez, 11668 South Union Road, Manteca, CA 95336 <br />1868 E. Hazelton Avenue I Stockton, California 95205 1 T 209 468-3420 1 F 209 464-0138 1 www.sjcehd.com <br />