All wet-operated industrial and manufacturing concerns whose sanitary sewer waste shall at any time be determined by the approving authority to have a B.O.D. content in excess of 250 ppm and/or a pH content of less than 5.5 or more than 9.0 shall bear an additional surcharge as follows:
(A) For each 1,000 gallons of water used, a charge of $0.05 per 1,000 gallons of water for each 100 ppm over 250 ppm of B.O.D. content;
(B) For each 1,000 gallons of water used, a charge of $0.05 for each½ of pH either above or below the above-stated range;
(C) For each 1,000 gallons of water used, a charge of $0.05 per 1,000 gallons of water for each 100 ppm over 250 ppm of total suspended solids content.
(`87 Code, § 24-63) (Ord. 1973-2, passed 1-16-73; Am. Ord. 1978-5, passed 8-1-78)