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Sidewalks that are contained exclusively within your property boundaries are included in your utility fee calculation. Public sidewalks are not.
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Visit the Community Development front desk at City Hall, which is located at:
211 W. Aspen Ave.
Flagstaff, AZ 86001
Low Impact Development (LID) is an ecologically friendly approach to site development and stormwater management that aims to mitigate development impacts to land, water, and air. This approach emphasizes stormwater management at the source, using small, cost-effective landscape features located at the lot level. The goal is to conserve natural systems and hydrologic functions on a site through the integration of site design and planning techniques.
Yes. However, if the LID components are sized to manage the runoff from the full one inch of rain, the requirement for detention of the two-year storm is waived.
The typical residential credit is approximately 10% of the monthly stormwater fee. Please view our Stormwater Credit Manual for qualification and application details. Stormwater Credit Manual
The stormwater staff members perform a variety of regulatory compliance functions. We are also responsible for the Stormwater Master Plan and the Drainage Improvement Program (DrIP). We also conduct construction inspections and site plan reviews.
Money collected from the stormwater fees is dedicated only to stormwater and cannot be used for anything else. The appropriate distribution of funds includes complying with federal water quality regulations as well as maintaining channels, structures, pipes, and other elements of the storm drainage system.
By Ordinance Section 12-02-002-0001, the stormwater utility fee became effective July 1, 2003. The stormwater fee is billed as part of the City of Flagstaff Municipal Services bill.
Impervious surfaces are those areas within developed land that prevent or significantly impede the natural infiltration of stormwater into the soil. Common impervious surfaces include:
The impervious area of properties is determined by using aerial photographs and information in the city’s Geographic Information Systems (GIS) along with parcel lines from the county assessor's office.
Effective July 1, 2019, the average Flagstaff residential property will pay $7.48 per month for stormwater fees. This is based on a billable area of between 3,001 and 4,500 square feet of impervious surface.
The stormwater fee and the impervious area calculation are a mechanism for equitably distributing the cost of the stormwater system maintenance and the need to comply with the federal mandate among all of the residents of Flagstaff who, in some way, use and contribute to the stormwater system and stormwater runoff.
ERU stands for Equivalent Rate Unit. It is calculated by the number of square feet of impervious surface on your property. This is then divided by 1,500 square feet to come up with an ERU. 1,500 square feet was determined to be the most equitable basis of distribution.
Yes, compacted surface is used in determining impervious area.
Please visit: https://flagstaff.az.gov/3626/Stormwater