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percolation may be done at a depth no greater than twenty-five (25) <br /> feet, on approval by the Director of Environmental Health,providing <br /> water table separation distances are met. <br /> 10.3.3. Percolation rates and soil profiles must be done by a Registered' <br /> Engineer or Registered Environmental Health Specialist and observed <br /> g g p <br /> 'by a Registered Environmental Health Specialist. Advance notice <br /> shall be given so that the performance of a percolation test may be <br /> observed. A permit from. the Environmental Health Services Division <br /> i <br /> is required. <br /> 10.3.4. The minimum disposal area shall conform to the following: <br /> Percolation Rate Minimum Usable Disposal Area <br /> (minutes/inch) (square foot)" <br /> 60 -120 * * <br /> 41 - 60 12,000 <br /> 21 - 40 10,000 <br /> 11 - 20 8,000 <br /> Less than 10 _ 6,000 <br /> * Determined in accordance with procedures contained in current U.S.Department of Health, <br /> Education and Welfare"Manual of Septic Tank Practices",E.P.A.Manual, Onsite Wastewater and <br /> iDisposal Systems or a method approved by the Director of Environmental Health. <br /> "Areas that are within the minimum distances(se 10.2.8) hick are necessary to provide protection <br /> to water quality and/or public health shall not be us waste disposal. The following areas are <br /> q h' P p S <br /> also considered unsuitable for the location of disposal systems or expansion area: <br /> i <br /> a. Areas within any easement which is dedicated for surface or <br /> subsurface improvement. <br /> b. Paved area. <br /> C. Areas not owned or controlled by property owners unless said area is dedicated for <br /> waste disposal purposes. <br /> d. Areas occupied or to be occupied by structures. <br /> I <br /> I <br /> *"Requires an alternate septic system or a system designed by a State of California Registered <br /> Engineer, <br /> 10.3.5. A soils profile of the division of land or land developments shall be <br /> made to a depth of at Ieast ten (10) feet where the water table or clay <br /> strata's are unknown. <br /> 10.3.6. Multiple dwellings proposed to be built on divisions of land after <br /> December 15, 1972 must have the required minimum usable disposal <br /> I area for each unit based on percolation area. <br /> 10.3.7. Any division of land or new land development having a slope greater <br /> than 10% will be evaluated on an individual basis. <br /> E14D 42-02-014 Page 22 of 25 <br /> 10/1512003 <br />