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_e <br /> ...nn.<w, 'ij LOA wun I:z�skdd svn x.I�__ <br /> — <br /> 4—p- <br /> 4.9. Treatment plant tanks are to be installed on undisturbed soil excavated to required <br /> slope and elevation or on properly installed reinforced concrete foundation in such a <br /> manner as to prevent listing or settling, which may cause malfunction or leaking. <br /> 4.10. A grease receptor shall be required whenever any commercial food establishment is <br /> connected to the plant or any activity, which produces a grease content over and <br /> above the normal grease content found in domestic sewage. Grease receptors shall <br /> be required as an addition to a sewage disposal plant if it is determined from the <br /> analysis of the sewage influent or effluent that elevated grease levels prevail. <br /> 4.11. A grease receptor must be installed in front of the wet well (head works) to <br /> affectively screen out floating and suspended grease produced by commercial food <br /> operations. The grease receptor must be of sufficient size to retain the grease-laden <br /> sewage for a period suitable to remove the grease. <br /> 4.12. An open polishing pond shall be installed between the plant and the subsurface <br /> disposal field. This pond must be segmented by a series of redwood baffles and a <br /> weir must be installed so as to screen out the suspended flocculent material <br /> remaining prior to flowing into the subsurface disposal field. <br /> 4.13. Monthly monitoring by a certified sewage plant operator is required. Analysis <br /> required may include Biochemical Oxygen Demands, Dissolved Oxygen and <br /> Fo++o hlo c.,li.Jc of nlon+ inflion+c onrl ofAcn+c onr# �# cinh .,4hor nr�m+c nn c+roam oc J <br /> .'seom ... - � As�rt-_msr- <br /> Tuesday, May 12, 2015 01:47 PM <br />