Installing pervious pavement

Receive rebate payment within weeks of final approval. You may request a hard copy of the application by emailing cleanbay cityofpaloalto. Contact Watershed Protection staff once the pervious pavement has been fully installed to set up a post-installation inspection. Submit final documentation and receive your rebate! Submit all final documents to Watershed Protection staff such as receipts and the IRS W-9 if not previously submitted : cleanbay cityofpaloalto. The City of Palo Alto Accounts Payable Department will contact these applicants at the beginning of the following calendar year.

Frequently Asked Questions Why should I install pervious pavement? What are the requirements for a pervious pavement rebate? Pervious pavement must be at least square feet in size. Pervious pavement must not impede window egress or safe passage for travel. Pervious pavement must not be installed before a "Notice to Proceed" has been issued by the City. Rebates will not be processed until all supporting documents, including permits, have been received. Pervious pavement must not be previously rebated under any other program, including, but not limited to, those outside of the City of Palo Alto.

What are the components of a pervious pavement installation? Pervious Pavement is the only visible component of the structure once it has been installed. This is the top layer of the installation. The bedding provides temporary storage for the stormwater to infiltrate the surface. Bedding materials may consist of stone or compacted soil.

The base provides structure to the pavement. The subbase is the stone layer that retains the water before it percolates into the soil subgrade. The subbase can also be soil. The soil subgrade is the final layer which water infiltrates. This layer is typically made up of the natural material of the area, compacted. The drain is optional but can provide water diversion after infiltration.

Where can I find a licensed contractor to install pervious pavement? Do I need a City permit for installation of pervious pavement? Any pervious pavement installation with the following features will need a building permit or consultation with the City of Palo Alto Development Center before installation: Pervious pavement projects sized greater than or equivalent to 2, square feet Commercial pervious pavement projects To inquire about permitting, contact the Development Center at and select Option 3 for Building Plan Check Team when prompted.

How much of a rebate can I receive? What are the different types of pervious pavement? Pervious paving materials include: Porous Asphalt Porous or open-graded asphalt does not contain fine aggregate particles. This creates spaces between the large participles comprising the pavement and allows water to drain through the pavement.

Porous asphalt can increase road safety by reducing hydroplaning and tends to be lower cost than individual pavers like grid pavement or Permeable Interlocking Concrete Pavers discussed below. The concept was proposed in the s in hopes of reducing floods, raising water tables, and replenishing aquifers, while a decade later the Environmental Protection Agency EPA began testing it to determine its cost and efficiency.

These tests were done at various sites in Delaware, Pennsylvania, and Texas, with Texas being the most significant site since it was the only one to have installed monitoring instruments. The first official design guide for pervious pavement was co-written in by Edmund Thelen and L. Fielding Howe in Philadelphia, PA. Permeable concrete is now used in multiple cities throughout the U. Permeable concrete consists of cement, a coarse aggregate, and water, with little to no fine aggregates sand or clay.

That is why permeable concrete has a very rough and uneven appearance. Permeable pavements can also reduce the need for road salt and reduce construction costs for residential and commercial development by reducing the need for some conventional drainage features.

Permeable Pavements, Green Infrastructure, U. Considerations for design, construction and maintenance are also discussed. University of New Hampshire Stormwater Center Find a range of information about permeable pavements, including design specifications, water quality benefits, and performance in cold climates. Pervious Pavement, Vermont Department of Environmental Conservation Illustrations and photos along with some basic information about different materials.

Information and resources are also provided for property owners interested in implementing their own environmental BMPs.