Does your property have a lot of open space with plants, or are there large portions of your property covered with hard surfaces such as asphalt or concrete? You will receive 10 points if less than 10% of your property is covered with impermeable materials – surfaces that do not allow rainwater or snowmelt to soak into the ground. Some materials allow water to soak right through. Examples of rain-permeable materials include: crushed gravel, porous pavers, stone/brick pavers, porous concrete and permeable asphalt.
On my own
When possible, design your property with a reduced amount of asphalt or concrete and use rain-permeable materials when replacing or installing new driveways, walkways, and patios.
Hire some help
See our local vendors for sources of permeable paving.