Ankeny, IA Environmental Rules: Stormwater Management (2026)
Key Facts
- Residential rate
- $8.50 per ERU/month, max 4 ERUs
- Commercial rate
- $8.50 per ERU/month, max 110 ERUs
- Appeal deadline
- City Manager responds within 30 days
- Enforcement
- Written notice, then civil penalty under Ch. 4
- Billing
- Combined utility account; delinquency creates a lien
Summary
The City of Ankeny bills every property inside the corporate limits a monthly stormwater management fee under City Code Chapter 107, calculated in equivalent residential units (ERUs). Single- and two-family homes pay $8.50 per ERU up to four ERUs, while commercial, industrial and multi-family parcels pay the same rate up to 110 ERUs, funding the City's stormwater system.
107.02 STORMWATER MANAGEMENT FEES. ... Except as hereinafter noted, each customer whose property lies within the corporate limits of the City of Ankeny shall pay to the City of Ankeny, through its utility billing system, the following stormwater management fees based on equivalent residential unit (ERU) associated with the customer's property: 1. Undeveloped: A flat fee at the rate of $0.00 per month. 2. Single-Family and Two-Family Residential: $8.50 per ERU per month up to a maximum of 4 ERUs. ... ... 3. Commercial, Industrial and Multi-Family: $8.50 per ERU per month up to a maximum of 110 ERUs.
Full Breakdown
Ankeny Code of Ordinances § 107.02 sets the stormwater management fee for every customer whose property lies within the corporate limits, based on equivalent residential units (ERU): undeveloped land pays a flat $0.00 per month; single-family and two-family residential parcels pay $8.50 per ERU up to a maximum of 4 ERUs; and commercial, industrial and multi-family properties pay $8.50 per ERU up to a maximum of 110 ERUs. Section 107.03 calculates each property's ERU count from aerial photography or an approved site plan's impervious surface data.
A property owner who believes the fee was applied in error can appeal in writing to the City Manager under § 107.04; a fee appeal must include a survey from a registered Iowa land surveyor or professional engineer documenting total property area and impervious surface area, and the City Manager must respond in writing within thirty days, with all decisions final. Section 107.05 exempts a property only if water service has been shut off for at least two weeks for vacancy, or if the City Manager grants a written variance; commercial, industrial and multi-family customers cannot claim onsite stormwater detention as a basis for exemption.
Fees are billed on the combined service account under § 92.08, and the City reviews rates at least yearly under § 107.07. Unpaid, delinquent stormwater fees become a lien on the property under § 107.08, certified to the County Treasurer for collection like property taxes.
Violations & Fines
Under § 106.07, the City serves a written notice of violation for stormwater chapter breaches and gives a reasonable deadline to correct them permanently. Continuing a violation past that deadline is a separate offense each day it continues, subject to the civil penalty set in Chapter 4 of the Ankeny Code, and the violator becomes liable to the City for any expense, loss or damage the violation causes.
Frequently Asked Questions
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Sources & Official References
Other rules in Ankeny
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