The Park City stormwater system consists of gutters, grates, storm inlets, pipes, culverts, and detention and retention ponds. Much of our snowmelt and rain water is collected within our drainage system and delivered to natural streams or percolate into the aquifer. The storm drain system is in place match pre and post-development drainage conditions, preventing flooding and property damage throughout the city. This system includes 39 miles of piping, 31 miles of earthen channels, and over 1,600 inlet boxes.
As part of the Clean Water Act, Park City is mandated to mitigate the pollutants from storm drain runoff and snowmelt that can contribute to our watershed. In July of 2016, the City began implementing practices to meet state regulations of the Municipal Separate Storm Sewer System (MS4) permit. There are six Minimum Control Measures required by the Utah State Division of Water Quality to implement the MS4 Permit. Once fully implemented, the City and local contractors will face audits and possible fines if permit regulations are not met.
What is Stormwater and why should I care?
Pollution from stormwater runoff is a concern, especially in urban and sub-urban areas. Rainwater washing across streets and sidewalks can pick up sedimentation from construction sites, spilled oil, detergents, solvents, de-icing salt, pesticides, fertilizer, and bacteria from pet waste.
Park City's storm drains do not channel water to a regional wastewater treatment facility. Our stormwater drains into the Silver and McLeod Creeks, before making its way to the Weber River and eventually the Great Salt Lake.
In areas without proper maintenance, most surface pollutants are collected during the first rainfall of "first-flush" in any storm or snowmelt event. This is the period when the majority of pollutants are picked up by flow across lawns, parking lots, and roadways. The runoff is then carried, untreated, into water ways or percolates into our aquifer. These pollutants can increase algae content, reduce aquatic life, and require additional costly treatment to make the water safe for downstream water systems.
It becomes the duty of every resident, developer, contractor, builder, business owner, vacationer, and municipal employee to minimize stormwater pollution impact within Park City.
Stormwater charges within City limits are based on the amount of impervious surface area of a property. Impervious surfaces include all hard surfaces such as rooftops, driveways, parking lots, patios, and other concrete or paved surfaces that do not permit surface water to be absorbed. These surface areas make up your Equivalent Stormwater Unit or ESU.
Any customer who disagrees with their ESU determination for his or her property may apply to the Public Utilities Director for a recalculation. The request must be received on a form provided by the City and must be filed in writing with the Public Utilities Director no later than 30 days after receipt of the most recent billing. The Public Utilities Director or designee shall review the request and basis for user charges and may approve an adjustment to the fee.
- Single-Family Residential properties may request an individual review of their property. A written request shall result in reviewing aerial imagery of the requested property. The actual impervious surface area will be calculated, and the result will be rounded up to the nearest whole ESU.
- Multi-Family Residential Properties may request an individual review of their property. A written request shall result in reviewing aerial imagery of the requested property. The actual impervious surface area will be calculated, and the result will be rounded up to the nearest whole ESU.
- Commercial Properties may request a copy of their individual ESU determination, and may provide comment on the accuracy of said determination. Adjustments may be made in consultation with the Public Utilities Director. Commercial properties shall be billed by rounding up the impervious surface area to the nearest whole ESU.
- Undeveloped parcels shall have no charges assessed.
If your application for a reduction is approved, you will be eligible for a credit applied to all charges from the time of the request. Reductions granted by the City will continue until the property is further developed or until the City determines the property no longer qualifies for the reduction.
The problem could be a result of several things, please try to keep your gutters clean and free from debris. The City attempts to sweep your street once per month during the summer months. Everything we can remove from the gutter before it gets washed into our system will help keep our streams clean. Please do your part to ensure clean free flowing gutters.
If your gutter becomes obstructed and you are unable to clear it, please call 435-615-5307.
For after hour emergencies call Park City Police Dispatch at 435-615-3600.
The City discourages use of metal plates in the gutter as they will become problematic with the flow of water and snow removal. Please avoid using them.