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An impervious area is defined as the surface within the parcel that does not allow soil infiltration to occur, and includes:
There is a direct relationship between the amount of impervious area and the runoff generated by a parcel, therefore this area is a common basis for the establishment of a stormwater utility user fee.
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The city is required by the Florida Department of Environmental Protection to maintain the stormwater system according to national standards, which include the construction and maintenance of its stormwater infrastructure. The cost of new projects, city labor, equipment, and administration has been funded by the stormwater utility fee since 1993.
The city hired a stormwater consultant who evaluated a sample of residential homes in St. Augustine with the use of the latest aerial imagery, assessor’s data and computer geographic systems. The analysis determined that the Single Family Unit (SFU) is equivalent to 2,752 square feet which includes roofed structures, driveways, decks and paved areas.
Remember that you need to consider driveways, patios, paved parking areas, and other impervious areas to estimate your fee. If you still feel that your fee needs an adjustment, please complete and submit the Adjustment Request Form (PDF).