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San Joaquin County Onsite Wastewater Treatment System Standards Section 7 — Alternative Treatments Systems and Engineered Systems 7.1 Alternative treatment systems are standard systems with additional enhancements above the required minimum to augment the treatment capabilities of the system. For example, additional septic tank capacity, additional length of leach line, or the addition of organic material under the leach line. Engineered systems are nonstandard systems uniquely designed for a specific location or locations by a Registered Civil Engineer based on site specific information. Where engineered systems are required, complete design plans shall be submitted by a Registered Civil Engineer to the Director of Environmental Health for initial approval prior to beginning construction. The plans shall include the following: 7.1.1 A complete scaled plot plan of the area showing wells, structures, sanitary sewerage lines, water lines and total proposed land use. 7.1.2 Total capacity of the system in gallons and organic load. Design criteria shall include a reserve capacity to accommodate a surge flow or increase in the average daily flow. 7.1.3 Calculations showing ability of effluent to meet discharge standards as set by the Environmental Health Department. 7.1.4 The source of data and the data calculated to the existing system or any future expansion shall be shown on the plans. 7.1.5 The percolation rates of leach fields or seepage pits shall be calculated and figures shown on the plans. An expansion area equal in size to the original dispersal field shall be so designated on the plan to be utilized in the event of failure of the original dispersal field. 7.2 When any existing system is altered, all of the above specifications are to be resubmitted for approval by the Director of Environmental Health. 7.3 Mechanical and electrical equipment shall be of such durable hardware, workmanship and installation as to insure against operational failure with normal maintenance. 7.4 All installations shall be adequately protected against acts of vandalism or sabotage, which could result in a malfunction of the system. For package treatment plants, the entire system shall be fenced and a locked gate provided to protect against any unauthorized person gaining entrance into the area, which could lead to injury or loss of life. 7.5 A certified operator licensed pursuant to the California Water Code, Division 7, Chapter 9, with skill to cause the package treatment plant to be operated as designed, shall be available to operate the plant. 7.6 All work or works shall be done under applicable required permits and inspection by the required regulatory agency. 7.7 The installation and operation of alternative treatment or engineered systems shall not create a public nuisance in regard to odor nor cause a potential or immediate safety or health hazard to the public. The discharge of effluent shall not cause contamination of the water bearing strata or surface watercourses. 7.8 Final disposition of sewage effluent shall be in constant compliance with the discharge requirements as set by the Central Valley Regional Water Quality Control Board or the Environmental Health Department. Any deviation from these discharge requirements is a violation of Chapters 9-1110 and 9-1125 of the San Joaquin County Development Title and shall be declared a public nuisance. 7.9 Treatment plant tanks are to be installed on undisturbed soil excavated to required slope and elevation or on properly installed reinforced concrete foundation in such a manner as to prevent listing or settling, which may cause malfunction or leaking. 7.10 A grease receptor shall be required whenever any commercial food establishment is connected to the plant or any activity, which produces a grease content over and above the normal grease content found in domestic sewage. Grease receptors shall be required if it is determined from the analysis of the sewage influent or effluent that elevated grease levels prevail. 7.11 A grease receptor must be installed in front of the wet well (head works) to affectively screen out floating and suspended grease produced by commercial food operations. The grease receptor must be of sufficient size to retain the grease -laden sewage for a period suitable to remove the grease. 7.12 Regular monitoring by a certified sewage plant operator is required. Analysis required may include Biochemical Oxygen Demands, Dissolved Oxygen and settable solids of plant influents and effluents and at such other points on stream as may be necessary. Average daily flows and peak flows after plant is in operation are to be determined by a reliable method. Copies of these analyses and operational records shall be furnished to the Director of Environmental Health and the Central Valley Regional Water Quality Control Board. 7.13 An auxiliary electrical power supply shall be available for the continued operation of the system. Portable power supply may be used if made available within a reasonable period of time in the event of a failure. California Health and Safety Code, Section 5411 No person shall discharge sewage, or other waste, or the effluent of treated sewage or other waste, in any manner which will result in contamination, pollution, or a nuisance. San Joaquin County Ordinance Code, Title 9, Section 9-1110.9 It shall be unlawful to maintain or use any residence, place of business, or other building or place where persons reside, congregate, or are employed which is not provided with a means for the disposal of wastewater which complies with the requirements of this Chapter and the standards relating to wastewater disposal made and established by the Director of the Environmental Health Division. San Joaquin County Ordinance Code, Title 9, Section 9.1125.4 It shall be unlawful for any person to discharge any treated or untreated wastes that may be detrimental to the surface or ground waters of the County. Wastewater discharges shall meet the discharge standards set by the State Regional Water Quality Control Board (RWQCB) and the requirements contained in this Chapter. San Joaquin County Ordinance Code, Title 8, Section 8-5100 It is a violation of this division for any property owner to permit or maintain a nuisance on his property.