What Developers Need to Know
This training series was developed in June 2023, in partnership with the Pioneer Valley Planning Commission, the Neponset River Watershed Association, and the Center for Watershed Protection. It was made possible by an MS4 Municipal Assistance Grant through the Massachusetts Department of Environmental Protection.
EPA Best Management Practices
Avoid fines and work stoppages, and protect the waterways your community depends on, by implementing and maintaining these EPA construction site stormwater best management practices (BMPs).
Protect Natural Features
- Minimize Clearing.
- Minimize the amount of disturbed soil.
- Identify and protect areas where existing vegetation, such as trees, will not be disturbed by construction activity.
- Protect streams, stream buffers, wild woodlands, wetlands, or other sensitive areas from any disturbance or construction activity by fencing or other clear markings.
- Protect and install vegetative buffers along waterbodies to slow and filter stormwater runoff.
- Inspect and maintain buffer areas regularly to ensure effectiveness.
- Sequence construction activities so the landscape is not disturbed for long periods of time.
- Limit grading to small areas.
- Install key sediment control practices before site grading begins.
- Schedule site stabilization, such as landscaping, to be completed immediately after the land has been graded to its final contour.
Storm Drain Inlet Protection
- Use rock or other appropriate material to cover the storm drain inlet to filter out trash and debris.
- Make sure the rock size is appropriate (usually 1 to 2 inches in diameter).
- Inspect and maintain all inlet protection devices and erosion controls on a regular schedule, and immediately after every rain storm.
- Cover or seed all dirt stockpiles to protect them from precipitation.
- Install control berms around the base of stockpiles to prevent the material from migrating.
- Rough grade or terrace slopes.
- Break up long slopes with sediment barriers, or under drain, or divert stormwater away from slopes.
- Inspect and maintain silt fences on a regular schedule, and immediately after every rain storm.
- Make sure the bottom 6″ of the silt fence is buried in the ground and install the fence perpendicular to the slope.
- Securely attach the material to the stakes.
- Don’t place silt fences in the middle of a waterway or use them as a check dam.
- Make sure stormwater is not flowing around the silt fence.
- Install construction entrances with measures to remove mud and dirt from the tires of construction vehicles before they enter a paved roadway.
- Appropriately mark the entrance so all visiting parties are aware of its location.
- Properly size the entrance and its sediment controls for all anticipated vehicles.
- Regularly maintain the entrance to ensure its consistent effectiveness.
- Vegetate, mulch, or otherwise stabilize all exposed areas as soon as land alterations have been completed.