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STATE WATER RESOURCES CONTROL BOARD -20 - ORDER 20 - ORDER WQ 2014-0153-DWQ GENERAL WASTE DISCHARGE REQUIREMENTS FOR SMALL DOMESTIC WASTEWATER TREATMENT SYSTEMS features. The ephemeral stream shall be a "losing stream" (discharging surface water to groundwater) at the proposed wastewater system site. Setback established by California Plumbing Code, Table K-1. d Lake or reservoir boundary measured from the high water line. e Septic Tank, Aerobic Treatment Unit, Treatment System, or Collection System addresses equipment located below ground or that impedes leak detection by routine visual inspection. f Leach Field includes all subsurface dispersal systems, including mound systems except seepage pits. 9 Disinfected tertiary recycled water is defined in California Code of Regulations, title 22, section 60301.230. " Disinfected secondary-2.2 recycled water is defined in California Code of Regulations, title 22, section 60301.220. Disinfected secondary-23 recycled water is defined in California Code of Regulations, title 22, section 60301.225. Undisinfected secondary recycled water is defined in California Code of Regulations, title 22, section 60301.900. k Additional restrictions for spray irrigation of recycled water are contained in California Code of Regulations, title 22, section 60310(f) M Setback established by California Code of Regulations, title 22, section 60310(a). A reduced setback is allowed as described in California Code of Regulations, title 22, section 60310(a) if all the conditions in the section are met and compliance is documented in the ROWD and NOA. ° California Well Standards, part II, section 8. Site-specific conditions may allow reduced setback or require an increased setback. See discussion in Well Standards. P Setback for drip or flood application methods. Spray irrigation is subject to additional setbacks and restrictions. (See footnote k.) r Setback established by California Code of Regulations, title 22, section 60310(c). S Setback established by California Code of Regulations, title 22, section 60310(d). t Setback established by California Code of Regulations, title 22, section 60310(b). W Setback established by the Onsite Wastewater Treatment System Policy, section 7.5.5. X Setback established by California Code of Regulations, title 22, section 60310(f). y Setback established by Onsite Wastewater Treatment System Policy, section 7.5.6. 2. Septic Systems a. Gauging and limited repairs may be performed by homeowners or contractors as allowed by the Business and Professions Code (Bus. & Prof. Code, section 7044 and/or section 7048). With certain exceptions, anyone performing construction work in California must be licensed by the California Contractors' State License Board. Septic tank and/or leach field service (repairs, pumping, etc.) shall be performed only by a California licensed General Engineering (A), Plumbing (C-36), or Sanitation System (C-42) contractor. The Discharger shall maintain a record of all septic service activities for a minimum of five years. At a minimum, the record shall include the date, nature of service, service company name, and service company state contractor license number. Health and Safety Code sections 117400 - 117450 require septic tank pumping to be registered by the jurisdiction where work is performed. Such service providers may be exempt from the state contractor's licensing requirements if meeting the exceptions described in the Business & Professions Code section 7044 and/or 7048. b. Owners and/or operators of wastewater systems that accept wastes from RVs or other mobile waste systems must ensure that such wastes do not deleteriously affect the wastewater system or adversely affect beneficial uses of groundwater September 23, 2014