Want to learn more about Permapave? Please click on the link below to download a PDF data sheet that includes some facts, and technical specs about Permapave. Installation instructions for Permapave's pavers are included as well.
Permapave Lintel & Facia Filtration Grates
Permapave Lintel Filtration Grates filter 100% of gross pollutants from stormwater runoff as it passes into the collection system. Gross pollutants remain on the pavement where proper disposal is easily managed. As an economical and extremely effective filtration system, outfall waterways are immediately cleaner and less contaminated. As with any filter, periodic cleaning to remove retained contaminants is necessary and can be done using the Permapave Cleaning Machine.
Permapave Facia Grates are specifically designed to allow water to flow into the sidewalk during rain events. Water feeds sidewalk trees and the flow of water to collection pits is greatly reduced. Trees and plants take up nutrients, nitrates and phosphates.
How it Works
Pits dug across the water flow or at the low point of pavement areas, are filled with appropriate filtration media. Permapave structural grates or pavers are installed as pit covers, returning land to normal use. Stormwater runoff passes through the grates or pavers into the pit; gross pollutants are restricted to the surface and micro-pollutants are trapped within the permeable mass of the grate or paver. Remaining contaminants are trapped within the filtering media, leaving only pure water to drain from each pit, recharging depleted ground water.
Permapave entry grates and pavers can be cleaned when required and the contaminated filtration media can be removed and deposited at an appropriate site.
