INDUSTRIAL WASTE SURCHARGE

Oklahoma City Municipal Code ch. 47, art. VIII, div. 3

in effect

Oklahoma City Municipal Code § 47-521 Required.

§ 47-521. - Required. If the Director determines that an industrial waste is acceptable under the discretionary power given him under this chapter, the contributor of the industrial waste shall be charged and assessed a surcharge, in addition to any sewer user charges, if these wastes have concentrations greater than domestic wastewater. (Code 1970, § 31-43(a); Code 1980, § 47-116)

Oklahoma City Municipal Code § 47-522 Charge supplemental.

§ 47-522. - Charge supplemental. When either or both the total suspended solids or BOD of water or waste accepted for admission to the City's sewerage works exceeds the values of these constituents for normal domestic sewage, the industrial user shall pay the industrial user surcharge in addition to any sewer user charges. (Code 1970, § 31-43(c); Code 1980, § 47-117; Ord. No. 22053, § 4, 10-8-02)

Oklahoma City Municipal Code § 47-523 Formula for calculation.

§ 47-523. - Formula for calculation. (a) The industrial user's surcharge shall be calculated by the following formula: Cu = (Qu)(Qr) + (Bu)(Br) + (Su)(Sr) Where: Cu | = | annual user surcharge Qu | = | user's annual flow in millions of gallons Qr | = | unit cost for flow in dollars per million gallons Bu | = | user's annual discharge of excess BOD in pounds Br | = | unit cost for BOD in dollars per pound Su | = | user's annual discharge of excess suspended solids in pounds Sr | = | unit cost for suspended solids in dollars per pound and excess BOD is defined as the BOD contributed at a concentration greater than 250 milligrams per liter; excess suspended solids is defined as the suspended solids contributed at a concentration greater than 300 milligrams per liter. (b) Unit costs shall be calculated as follows: Qr = 0.5(OCt) + OCs / Qt Br = 0.3(OCt) / Bt Sr = 0.2(OCt) / St Where: OCt | = | annual operating cost of wastewater treatment plants OCs | = | annual operating cost of sewer collecting systems Qt | = | annual flow rate to the wastewater treatment plants in millions of gallons Bt | = | annual total BOD loading to the wastewater treatment plants in pounds St | = | annual total suspended solids loading to the wastewater treatment plants in pounds. (Code 1970, § 31-43(b); Code 1980, § 47-118)

Oklahoma City Municipal Code § 47-524 Amount.

§ 47-524. - Amount. The surcharge for industrial users shall be in such amount as established in Chapter 60, the General Schedule of Fees. (Code 1970, § 31-43(g); Code 1980, § 47-119)

Oklahoma City Municipal Code § 47-525 Meters and adjustments for unpolluted wastes.

§ 47-525. - Meters and adjustments for unpolluted wastes. (a) When the public water supply is used exclusively, the water consumption during the previous month, as determined from the meter records of the City, shall be the valid basis for computing a sewage flow, with reference to the surcharge for industrial users, unless actual sewage flow is measured by a recording meter of a type to be approved by the City. The owner shall maintain such device in proper condition to accurately measure such flow. Upon failure to do so, the water consumption shall be the basis for charges. (b) In cases where all or part of the water consumed is obtained from private supplies, wells, etc., such person shall provide and maintain at all times suitable metering devices, approved by the Director, in connection with all sources of private water unless the control manhole provided for in the preceding subsection shall be equipped with an approved volume measuring device. The volume of private water consumed during the previous month, together with the consumption of public water as determined from the records of the City, shall be the basis for computing the sewage volume, or the owner may install, at his expense, a approved metering device to accurately measure sewage flow as before mentioned. (c) When water is contained in a product, or is evaporated, or is discharged as unpolluted waste in an uncontaminated condition to surface drainage, an application may be made for a reduction in the volume of waste discharge to the public sewer; provided, that supporting data satisfactory to the Director are furnished. This data shall include a flow diagram, destination of the water supply or wastes and shall be supported by submetering data of a type satisfactory to the Director installed on such process piping at the expense of the private owner. (Code 1970, § 31-43(d)—(f); Code 1980, § 47-120)

Oklahoma City Municipal Code § 47-526 Charges for initial year; reports and annual review.

§ 47-526. - Charges for initial year; reports and annual review. (a) The surcharge for biochemical oxygen demand and suspended solids shall be based upon the analyses as determined in Section 47-340. The applicable surcharge determined by such tests shall be assessed and shall continue for 12 months unless subsequent tests determine that the surcharge should be further increased or decreased. During the first year for new or existing industries required to file reports under Article VII, Division 5 of this chapter, the applicable surcharge shall be determined from a weighted average of the analyses reported and based upon the charges stated in Section 47-524. (b) The basis for determining the surcharge shall be reviewed annually and shall be adjusted to reflect any increase or decrease in wastewater treatment costs based on the previous year's experience. (Code 1970, § 31-43(h), (i); Code 1980, § 47-121)

Oklahoma City Municipal Code § 47-527 Billing.

§ 47-527. - Billing. Billing of the industrial waste surcharge shall be by the month or bimonthly, shall be shown as a separate item on the regular bill for water and sewer charges, and shall be paid monthly or bimonthly in accordance with existing practices. (Code 1970, § 31-43(j); Code 1980, § 47-122)

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_DIV3INWASUFetched: 10/28/2026