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This document is used for calculating the impervious surface coverage for properties, detailing the formulas and zoning regulations for residential lots.

How to fill out pdffiller form

To fill out an impervious surface calculation sheet, follow these steps:

1. Obtain the necessary information: Gather data on the area you need to calculate the impervious surface for. This may include maps, drawings, or measurements of the site.
2. Identify impervious surfaces: Determine which surfaces on the site are considered impervious, such as buildings, parking lots, driveways, and sidewalks. Make a list of these surfaces.
3. Measure impervious surface areas: Measure the dimensions of each impervious surface and calculate the corresponding area. This can be done using measuring tools like a tape measure, or by using available data if measurements are not possible.
4. Calculate total impervious surface area: Add up the areas of all the impervious surfaces to determine the total impervious surface area for the site.
5. Fill out the calculation sheet: Use the impervious surface calculation sheet provided or create your own. Input the information gathered in the previous steps, including the dimensions and areas of each impervious surface, as well as the total impervious surface area.
6. Verify and double-check: Review the calculation sheet to ensure all the information is accurate. Check for any errors or missing data.
7. Submit or use the calculation sheet: The filled-out impervious surface calculation sheet can be submitted to the relevant authority, such as a city planning department or environmental agency, if required. Alternatively, it can be used for personal records or project planning purposes.

Who needs an impervious surface calculation sheet?

1. Contractors and builders: Construction professionals may need to submit an impervious surface calculation sheet as part of their permit applications for new development or renovations.
2. Architects and engineers: These professionals may require an impervious surface calculation sheet to assess the impact of impervious surfaces on stormwater management and site design.
3. Environmental agencies and local municipalities: Government organizations responsible for managing land use, stormwater runoff, or environmental regulations may request impervious surface calculation sheets to monitor and enforce compliance.
4. Property owners and developers: Individuals or entities who own or develop land may need to calculate impervious surfaces to ensure compliance with regulations or to assess the impact of their development on the surrounding environment.
5. Planning departments and zoning boards: These organizations may require impervious surface calculation sheets to evaluate site plans, zoning variances, or land use requests.

It is important to consult with the specific authorities or organizations involved to determine the exact requirements for an impervious surface calculation sheet in your particular jurisdiction or project.

People Also Ask about

What is an impervious square footage?

An impervious surface area includes and hard-surfaced, man- made area that does not readily absorb or retain water, including but not limited to building roofs, parking and driveway areas, sidewalks and paved recreational facilities.

Which surface is impervious?

“Impervious surface” refers to all hard surfaces like paved roads, parking lots, roofs, and even highly compacted soils like sports fields.

What is impervious surface cover?

Impervious cover is any type of human-made surface that doesn't absorb rainfall, including: Rooftops. Patios. Driveways, paved and unpaved. Sidewalks.

What is urban impervious surface?

Common impervious surfaces include: Roads. Parking lots. Rooftops. Driveways and sidewalks.

How do you calculate impervious surface area?

TO COMPUTE THE MAXIMUM SQUARE FOOTAGE OF IMPERVIOUS SURFACE ALLOWED ON A LOT, MULTIPLY THE PERCENTAGE ALLOWED IN YOUR ZONING DISTRICT BY THE TOTAL SQUARE FOOTAGE OF THE LOT (EXAMPLE: A LOT MEASURING 7200 SQ. FT. WITH A 45% COVERAGE WOULD HAVE A MAXIMUM ALLOWABLE IMPERVIOUS SURFACE COVERAGE OF 3240 SQ. FT.

How do you calculate impervious surface?

Calculating Impervious Surface Impervious surface areas include all the hard top manmade surfaces within the Protected Shoreland Area (PSA). After determining the ar- ea of each of these surfaces, add them together and divide their total by the area of the PSA.

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What is impervious surface calculation sheet?

The impervious surface calculation sheet is a document used to quantify the amount of impervious surfaces, such as roads, roofs, and parking lots, within a specific area to assess potential environmental impacts, primarily related to stormwater runoff.

Who is required to file impervious surface calculation sheet?

Typically, developers, property owners, or contractors who are undertaking construction or land development activities that increase impervious surfaces are required to file an impervious surface calculation sheet.

How to fill out impervious surface calculation sheet?

To fill out the impervious surface calculation sheet, one must gather measurements of all impervious surfaces on the property, calculate the total area of those surfaces, and provide this information along with any necessary project details and plans as specified in the guidelines provided by the local regulatory authority.

What is the purpose of impervious surface calculation sheet?

The purpose of the impervious surface calculation sheet is to evaluate and manage the impact of new or modified impervious surfaces on stormwater drainage, water quality, and flooding, ensuring compliance with environmental regulations and guidelines.

What information must be reported on impervious surface calculation sheet?

The impervious surface calculation sheet typically requires reporting the total area of impervious surfaces, a description of each type of surface (e.g., asphalt, concrete), project details, and any applicable calculations related to stormwater management practices.