274 Water and Sewer Ordinance - Laserfiche WebLink

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• (a) Any grease, fatty material , offal , or garbage. (b) Any stone dust , sand, dirt, gravel , sawdust, metal filings, broken glass , or any material 111 which may cause or create an obstruction in the sewer. (c) Gasoline, benzine, fuel oil , or any petroleum products or volatile liquids . (d) Milk or any liquid milk waste products in quantities in excess of ten gallons during each twenty-four hour period. 0 SECTION 12 . CHEMICALS : It shall be unlawful to cause or 0 permit to flow into the sewer system any cyanide, phenols or any Qother chemical substance which interferes with or prevents the function- ing of the sewage treatment plant . SECTION 13 . INTERCEPTION: Every building or premises used or occupied by any sewer user where any commercial or industrial operations are conducted or permitted which result in the discharge into the sewer system of the city of any of the products , waste products or other substances in the manner and to the extent prohibited in this ordinance, shall be equipped with an adequate and suitable catch basin, grease trap , filter or other interceptor, installed in such a manner that the products , waste products , or other substances herein set forth will not flow into or be discharged into the sewer system. It shall be unlawful to permit the flow of waste from such building or permises into the sewer system unless such interceptor is installed and in good working order. SECTION 14. B.O.D. LIMITS : The admission into the public sewers of any waters or wastes having (a) a five-day biochemical -:. 111 oxygen demand greater than 250 parts per million by weight of suspend- ed solids , or (b) containing more than 1000 parts per million by weight of suspended solids , or (c) having an average daily flow greater than two percent of the average daily sewage flow of the city, shall be subject to/ the review and approval of the city. 'There ' ,i 40 ;; � trfir? `c`.. { k