Formula for calculation.
Oklahoma City Municipal Code § 47-552
in effect§ 47-552. - Formula for calculation.
(a) The industrial cost recovery charge shall be calculated by the following formula:
Cr + (Qu)(Qi) + (Bu)(Bi) + (Su)(Si)
Where:
Cr | = | annual cost recovery charge
Qu | = | user's annual flow in millions of gallons
Qi | = | unit cost for flow in dollars per million gallons
Bu | = | user's annual discharge of BOD in pounds
Bi | = | unit cost for BOD in dollars per pound
Su | = | user's annual discharge of suspended solids in pounds
Si | = | unit cost for suspended solids in dollars per pound
(b) Unit costs shall be calculated as follows:
Bi = Fb Xb / Bt
Si = Fs Xs / St
Qi = Fq Xf + Yf / Qt
Where:
Fb | = | ratio of industrial BOD to total BOD
Fs | = | ratio of industrial suspended solids to total suspended solids
Fq | = | ratio of industrial flow to total flow
Xb | = | Federal contribution to cost in dollars for treatment facilities attributable to BOD
Xs | = | Federal contribution to cost in dollars for treatment facilities attributable to suspended solids
Bt | = | design BOD loading to the wastewater treatment facilities in pounds
St | = | design suspended solids loading to the wastewater treatment facilities in pounds
Xf | = | Federal contribution to cost in dollars for treatment facilities attributable to flow
Yf | = | Federal contribution in dollars for sewer collection systems attributable to flow
Qt | = | design flow rate to the wastewater treatment facilities in millions of gallons.
(Code 1970, § 31-44(b); Code 1980, § 47-137)
Source: City of Oklahoma City, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/ok/oklahoma_city/codes/code_of_ordinances?nodeId=OKMUCO2020_CH47SESEDI_ARTVIIIRACHBICOPR_DIV4INCORE_S47-552FOCAFetched: 10/28/2026