Drainage Utility Fee
WHAT IS A DRAINAGE UTILITY FEE?
A Drainage Utility Fee (DUF) is a monthly charge assessed to all properties based on impervious cover. Revenue from the fee is used to improve and maintain the City’s drainage infrastructure system and to protect water quality.
WHAT IS IMPERVIOUS COVER?
Impervious cover includes surfaces that do not allow rainfall to absorb into the soil creating runoff into waterways. Examples of impervious cover include rooftops, driveways, walkways, patios, sheds, parking lots and loading docks.
WHEN DOES THE NEW DRAINAGE UTILITY FEE STRUCTURE BEGIN?
Drainage Utility Fees have been in place since 2001; however, City Council adopted a change to the calculation of the DUF in July 2019. Beginning February 1, 2020, the DUF will be calculated using the impervious cover based method.
HOW MUCH IS MY FEE?
The DUF for single-family properties and duplex properties remains $6 per month.
The DUF for non-residential properties is based on an Equivalent Residential Unit (ERU). Non-residential customers are defined as commercial properties and those multi-family properties with three or more units. An ERU is a unit of measurement of impervious cover based on the average residential property. The City of Killeen current adopted value is ERU = 3,027 square feet of impervious cover. The number of ERUs for each non-residential property receiving utility service from the city shall be individually determined by dividing the actual impervious surface area of the property by 3,027 rounded up to the nearest whole number. The value of impervious cover on each lot was measured based on 2015 aerial photography and construction plans.
HOW DO I REDUCE MY FEE?
There are two ways for non-residential customers to reduce their monthly DUF. The first is to remove any excessive impervious cover from the parcel and revegetate the disturbed area. Non-residential customers may apply for and the City may grant stormwater credit(s) for voluntary use of stormwater best management practices (BMPs). The total amount of stormwater credit shall not exceed 40%. The list of approved BMPs for this credit include:
- Community Cleanup Program 5%
- Parking Lot Sweeping Program 5%
- Rainwater Harvesting 10%
- Riparian Preservation 10%
- Bioretention/Rain Garden 10%
- Multi-Stage Detention 20%
- Retention Ponds 40%
- Green Roofs 40%
Non-Residential customers may fill out and submit the request for stormwater credits utilizing the DUF Adjustment Fee form in the Helpful Links section below. The City is in the process of developing the credit standards and will have them released on this page prior to the new fee going into effect.