Erosion Control: Somerville vs Waltham
How do erosion control rules compare between Somerville, MA and Waltham, MA?
Somerville and Waltham have similar restriction levels.
Somerville, MA
Middlesex County
Construction sites in Somerville must install silt fence, stabilized entrances, and inlet protection before earthwork. Violations are $300 per day.
View full Somerville rules →Waltham, MA
Middlesex County
Waltham requires erosion control measures on all construction sites disturbing over 1,000 square feet, with inspections by the Conservation Commission and Building Department.
View full Waltham rules →Key Facts Comparison
| Fact | Somerville | Waltham |
|---|---|---|
| Design guide | MA Stormwater Handbook | - |
| Required BMPs | Silt fence, stabilized entry, inlet protection | - |
| Stabilization | 14 days for inactive areas | Within 14 days |
| Wetland jurisdiction | 100 feet Conservation | - |
| Fine | $300 per day typical | - |
| Threshold | - | 1,000 square feet disturbance |
| Standard BMPs | - | Silt fence, inlet protection |
| Wetlands Buffer | - | 100 feet Con Com jurisdiction |
| Enforcement | - | DEP fines possible |
Highlighted rows indicate differences between cities.
Somerville FAQ
Do I need erosion controls for a small home addition?
Yes if you are disturbing soil. At minimum install silt fence around stockpiles and protect nearby catch basins. Permit conditions will specify.
Who inspects erosion controls?
DPW Engineering inspects larger projects; ISD building inspectors flag BMP failures on smaller permits. Complaints can be filed via Somerville 311.
Waltham FAQ
Do I need erosion controls for a small addition in Waltham?
If you are disturbing 1,000 square feet of soil or working near wetlands, yes. Smaller projects should still prevent mud tracking onto streets.
Who inspects erosion controls in Waltham?
The Building Department during construction inspections and the Conservation Commission for wetlands-adjacent projects. Complaints can trigger additional visits.
Compare other topics
See how Somerville and Waltham compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool