Wastewater charges are hereby established for regional wastewater customers of the regional wastewater system as follows. Regional wastewater customers shall be billed monthly. The regional wastewater charge for each billing period shall include the following:
(a) Fixed charge. Each regional wastewater customer shall be subject to a monthly base charge:
Effective January 1, 2023 | Effective January 1, 2024 | Effective January 1, 2025 | Effective January 1, 2026 | Effective January 1, 2027 |
$20.53 | $21.77 | $23.07 | $24.23 | $25.44 |
(b) In addition to the monthly fixed charge as set forth in subsection (a), regional wastewater customer rates are hereby established for use of the regional wastewater system as follows:
(1) Regional wastewater customer base rate per 1,000 gallons for service:
Effective January 1, 2023 | Effective January 1, 2024 | Effective January 1, 2025 | Effective January 1, 2026 | Effective January 1, 2027 |
$6.40 | $6.78 | $7.19 | $7.55 | $7.93 |
Credits for equalization and treatment shall apply as follows if all of the following conditions are met for either criterion by the regional wastewater customer:
Base Rate Credits
A. Equalization. Equalization is defined as a regional wastewater customer maintaining a 30-day continuous storage volume based on the regional wastewater customer's average annual daily flow volume. The base rate credit for maintaining the required equalization storage shall be per 1,000 gallons for service:
Effective January 1, 2023 | Effective January 1, 2024 | Effective January 1, 2025 | Effective January 1, 2026 | Effective January 1, 2027 |
$0.71 | $0.75 | $0.80 | $0.84 | $0.88 |
The city may inspect and request verification of the 30-day storage at any time. If the 30-day storage is not continuously maintained, it will be at the city's discretion to cease any further equalization credits until the 30-day equalization storage is proven to exist to the satisfaction of the city unless a prorated credit is granted pursuant to subsection C of this section. The credit will not be applied thereafter until equalization storage has been maintained continuously for a full billing cycle.
B. Treatment.
1. Treatment is defined as wastewater with the following strength parameters or less:
a. BOD = 20mg/l
b. TKN = 10mg/l
c. TSS = 45mg/l
2. If all the strength parameters are met for testing performed during the monthly billing cycle, the credit will be applied to the base rate. The credit for maintaining all the required wastewater strength parameters shall be per 1,000 gallons for service:
Effective January 1, 2023 | Effective January 1, 2024 | Effective January 1, 2025 | Effective January 1, 2026 | Effective January 1, 2027 |
$0.87 | $0.92 | $0.97 | $1.02 | $1.07 |
If at any time any one of the strength parameters is exceeded in a billing cycle within a month, the monthly billing for such period will not include a treatment credit to the base rate. The credit will not be applied thereafter until all wastewater strength parameters are met for an entire calendar monthly billing cycle.
C. Prorated base rate credits. At the discretion of the manager, a prorated credit may be established through the wastewater joint powers agreement for a regional wastewater customer that is unable to achieve the above set criteria.
(c) Surcharges and rates for Clean Water State Revolving Fund Loans 35 and 36. The following wastewater service surcharges shall be applicable to all customers served by the Sioux Falls Wastewater System and shall be in proportion to the volume of wastewater generated by the customers as follows:
(1) The surcharge for Clean Water State Revolving Fund Loan 35 as approved by Sioux Falls Ordinance 45-15 is $0.32 per 1,000 gallons of wastewater for services listed in § 51.081.01(b)(1). The surcharge as approved by Sioux Falls Ordinance 112-15 is $0.70 per 1,000 gallons of wastewater for services listed in § 51.081.01(b)(1).
(2) The volumetric rates for sanitary sewer service in § 51.081.01(b)(1) of the Code of Ordinances of the City of Sioux Falls are hereby reduced in an amount equivalent to the surcharges established above.
(3) The surcharge for Clean Water State Revolving Fund Loan 35 shall remain in effect until the bonds provided in Ordinance 44-15 are discharged or defeased and all costs of the project approved in said ordinance have been paid. The surcharge for Clean Water State Revolving Fund Loan 36 shall remain in effect until the bonds provided in Ordinance 113-15 are discharged or defeased and all costs of the project approved in said ordinance have been paid.
(Ord. 35-13, passed 6-18-2013; Ord. 35-14, passed 6-17-2014; Ord. 46-15, passed 5-12-2015; Ord. 111-15, passed 11-17-2015; Ord. 47-16, passed 5-3-2016; Ord. 114-18, passed 12-4-2018; Ord. 43-23, passed 6-20-2023)