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If collected screenings, sludges, and other solids removed from liquid _ <br />wastes are disposed of at a landfill, such disposal. shall comply with CCR, <br />Title 23, Section 25'10, "et seq. (Chapter 15). <br />5. For Subsurface Disposal Systems, the Following Additional <br />Requirements Apply: <br />a. The subsurface wastewater disposal system(s) shall be maintained <br />so that -at no time will sewage surface at any location. <br />b. No part of the disposal system(s) shall extend to a.depth where <br />waste may pollute ground water. <br />6. For Surface Disposal Systems, the Following Additional <br />Requirements Apply: <br />a. A minimum freeboard of two (2) feet shall be maintained at all -times <br />in the.basins or ponds. <br />b. Public contact with wastewater shall be precluded through such <br />means as fences, signs, and other acceptable alternatives. <br />C. Basins or ponds shall have sufficient capacity to accommodate <br />.allowable wastewater flow and design seasonal precipitation and <br />ancillary inflow and infiltration during the winter season. Design <br />seasonal precipitation shall be based on criteria, if any, set in the <br />appropriate RWQCB's Basin Plan. • If no criteria. is set in the <br />appropriate RWQCB's Basin Plan, then seasonal precipitation shall <br />be based on historical 24 hour rainfall, using a 10 year return <br />frequency. <br />d. Disposal in ponds shall be conducted in a manner such that there <br />shall be.no stranded or exposed sewage solids.. <br />C. Ground Water and Surface Water Limitations: <br />1, The discharge shall not: <br />a. Pollute ground or surface waters. <br />b. Adversely affect beneficial uses or cause an exceedance of any <br />applicable Basin Pian water quality objectives for ground or surface <br />waters. <br />