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Stormwater Fee Rates
Based on Impervious Surface
The rate that you pay every month is based on the amount of impervious surface – like rooftops and driveways – on your property.
Use this map to see your property's impervious surface.
Residential Rates (New rates starting July 1)
| Property Type |
Impervious Area (Sq. ft.) |
Monthly Fee |
New Monthly Rate (as of July 1, 2021) |
|---|---|---|---|
| Below 400 | None | None | |
| Tier 1 | 400 - 1,000 | $2.20 | $2.80 |
| Tier 2 | 1,001 - 3,780 | $5.50 | $7.00 |
| Tier 3 | 3,781 - 6,620 | $9.35 | $11.90 |
| Tier 4 | 6,621 - 9,500 | $15.95 | $20.30 |
Homes with more than 9,500 square feet of impervious surface pay the commercial rate.
Commercial Rates (Approved rate as of July 2021)
This includes multi-family properties, offices, institutions, industrial land uses, and single-family properties larger than 9,500 square feet. The approved fee is a 27 percent increase from the FY2020 rate. This rate varies based on the size of your property.
Get a Credit
Receive a credit if you detain more stormwater on your property than you're required. Storing stormwater helps manage how much water reaches storm drains and streams. This reduces water pollution and hazardous road flooding. Credits are typically for commercial properties with a lot of impervious surface.