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1 <br />2 <br />3i <br />4 <br />5 <br />6 <br />7 <br />8 <br />91 <br />10� <br />11 <br />12 <br />13 <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />26 <br />27 <br />28 <br />29 <br />30 <br />31 <br />32 <br />not include facilities for the washing of more than one vehicle at a time, <br />the interceptor shall have an operation fluid capacity of not less than 6 <br />cubic feet and an accessible effective water surface not less than 4 <br />square feet. "Accessible effective water surface" is here understood to <br />mean a surface which is easily accessible for cleaning and which at the <br />same ti -,.e will retain oil floating on the surface of water passing through <br />the trap under conditions of use. If the vehicle servicing facility has <br />facilities for washing or otherwise cleaning more than one vehicle at a <br />time, the interceptor shall have an operating fluid capacity of at least <br />12 cubic feet and an accessible effective water surface of at least 6 <br />square feet, and shall be as much larger than this as is necessary so that <br />a seven-day accumulation of sand and oil will not together fill more than <br />25% of the fluid capacity. The interceptor shall be designed so as to <br />retain any oil and grease which will float and any sand which will settle. <br />It shall be water right and structurally sound and durable. It shall be <br />easily accessible for cleaning and also for inspection by the Public Works <br />Director. <br />Section 5. Any interceptor legally and properly installed at a <br />vehicle servicing facility before the effective date of this ordinance <br />shall be acceptable as an alternative to the interceptor specified in <br />Section 4, provided such interceptor is effective in removing sand and oil <br />and is so designed and installed that it can be inspected and properly <br />maintained. If the Public Works Director finds either by engineering <br />knowledge or by observation, that an interceptor is incapable of retaining <br />adequately the sand and oil in the waste water flow from a vehicle servic- <br />ing facility, he shall condemn such interceptor and declare that it does <br />not meet the requirements of this ordinance. <br />Section 6. The Public Works Director shall maintain a file, available <br />for public use, of suitable designs of sand -and -oil interceptors. This shall <br />be for informational purpose. Installation of an interceptor of a design <br />shown in this file, or of any design meeting the size requirements set forth <br />in this ordinance shall not impute any liability to the City of Colton for <br />-4- <br />