(A) Persons generating abnormal sewage may discharge such sewage into the sanitary sewer provided:
(1) The waste will not cause damage to the collection system;
(2) The waste will not impair the treatment processes;
(3) The person discharging such waste pays a monthly surcharge to the Water Department in addition to the usual monthly sewer service charges. Computations of such surcharges shall be based on the following formula:
S - V x 62.4 x (0.01 l(B.O.D. - 300) + 0.007(S.S. - 300)) S - surcharge in dollars |
V = water consumption in millions of cubic feet during the billing period |
62.4 = pounds per cubic foot of water |
0.011 = unit charge per pound for B.O.D. in dollars |
B.O.D. = B.O.D. strength index in parts per million by weight |
300 = normal B.O.D. strength in parts per million by weight |
0.007 = unit charge per pound for suspended solids in dollars |
S.S = suspended solids strength index in parts per million by weight |
300 = normal suspended solids strength in parts per million by weight |
(B) Abnormal sewage surcharges payable under this section shall be as follows:
(1) Commencing January 1, 1970, 33% of charges computed by formula;
(2) Commencing October 1, 1970, 66% of charges computed by formula;
(3) Commencing October 1, 1971, 100% of charges computed by formula.
(C) If the strength index for either B.O.D. or S.S. is less than the normal strength index for that category, then there shall be no surcharge for that category, nor shall there be credit given to the total surcharge.
(Ord. 345, passed 3-21-2013)