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public sanitary sewer, shall be provided with aprivate water flush <br />toilet, or if the opinion of the Health Officer conditions permit, <br />a privy, by the owner or agent or occupant of the premises; said <br />water flush toilet system, or privy, to be built or rebuilt, con- <br />structed, altered or reconstructed, or maintained in such manner <br />as to meet the requirements of construction and maintenance herein- <br />after described to -wit: <br />A. Private Sewage Disposal Systems. <br />1. At any residence, place of business or other building <br />where there is installed a water flush system or sewage disposal <br />system which is not connected to a public sewer system, and where <br />the customary users do not exceed fifteen (15) in number, there shall <br />also be established or installed a private sewage disposal system. <br />Said disposal system to consist of a septic tank and a system of <br />underground drains for the disposal of the tank effluent. Said <br />tank and drains shall be so constructed as to meet the requirements <br />of construction and maintenance hereinafter described. <br />(a) SEPTIC TANKS. The septic tanks shall be of two <br />compartment construction; the first compartment being twice the <br />capacity of the second. Said tank shall be of a type, constructed <br />and located in accordance with the recommendations of the State <br />Department of Public Health and the Health Officer. If it is neces- <br />sary to install the tank above the ground surface, it must be made <br />air and odor tight. The septic tank, distribution box if used, and <br />all inlets and outlets thereto, shall be water tight. <br />(1) SIZE. The minimum capacity of the septic tank <br />shall be 700 gallons. <br />(2) MATERIALS. The septic tank shall be constructed <br />of concrete, irrigation heart grade redwood or equal, or some other <br />material of equal durable and waterproof qualities approved by the <br />Health Officer. <br />(b) DRAINS. The effluent from the septic tank must dis- <br />charge into an approved absorption field. The construction shall <br />be such that the sewage shall at no time flow over the top of the <br />ground. The absorption field shall be laid at a grade of not more <br />than two (2) inches in one hundred (100) feet. The effluent lines <br />shall be laid in a trench at least twenty-four (24) inches wide, <br />which has a layer of one to two inch loose rock An the bottom at <br />least twelve (12) inches deep and at least four (4) inches over the <br />top of said effluent lines. The minimum length of the effluent <br />leaching lines shall be one hundred and twenty-five (125) feet. <br />Additional length of effluent line may be required by the Health <br />Officer if unusual conditions are encountered. In any case where <br />the topography or area of any lot, piece or parcel of land upon which <br />a septic tank is erected, maintained, constructed, or is proposed <br />to be erected, maintained or constructed, is such that the minimum <br />requirements for the length of effluent leaching lines cannot be <br />complied with the Health Officer may grant a special permit for the <br />erection, construction or maintenance of shorter effluent leaching <br />lines, or other means of effluent disposal, if in his judgment such <br />other means or shorter effluent lines are sufficient to provide for <br />the efficient disposal of the effluent without endangering public <br />health or safety. <br />(c) CESSPOOLS. It shall be unlawful to use cesspool <br />for the disposal of sewage without a permit from the Health Officer. <br />- 2 - <br />