Why Cambridge Has Some of the Strictest Environmental Rules in the State
If you live in Cambridge or are thinking about moving there, environmental rules are one of those things you probably won't think about until they affect you directly. Cambridge has 4 specific rules on the books covering different aspects of environmental rules, and some of them might surprise you.
Grading & Drainage
Cambridge requires grading and drainage plans with building permits to ensure runoff is managed on-site and does not adversely affect neighbors or the municipal storm drain system.
Key details: Permit review: ISD and DPW. Runoff: Managed on-site. Neighbor harm: Prohibited. Sump pump to sewer: Prohibited. Downspouts: To infiltration preferred.
Contact your local code enforcement office for specific penalty information.
Compared to other cities, Cambridge takes a harder line on grading & drainage. The enforcement and penalty structure reflects that.
Stormwater Management
Cambridge requires stormwater management plans for construction disturbing one acre or more and implements strict post-construction standards to reduce flooding and protect the Charles River and Alewife watershed.
Key details: Trigger: 1 acre disturbance. Standard: First inch treatment. Program: EPA MS4 Phase II. LID: Encouraged or required. Illicit discharge: Prohibited.
Contact your local code enforcement office for specific penalty information.
This is one of the stricter rules in Cambridge's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.
Erosion Control
Cambridge construction sites must install erosion and sediment controls under the Stormwater Ordinance and state Wetlands Protection Act, with silt fencing, inlet protection, and stabilized entrances required.
Key details: Trigger: 1 acre disturbance. BMPs: Silt fence, inlet protection. Stabilization: Within 14 days. Wetlands law: MGL c.131 s.40. Non-compliance: Stop-work order.
Contact your local code enforcement office for specific penalty information.
Compared to other cities, Cambridge takes a harder line on erosion control. The enforcement and penalty structure reflects that.
Flood Zones
Cambridge participates in the National Flood Insurance Program and enforces a Flood Plain Overlay District covering FEMA Special Flood Hazard Areas along the Charles River and Alewife Brook.
Key details: Program: NFIP participant. Main flood areas: Charles, Alewife. Elevation: Above BFE plus freeboard. Insurance: Required for SFHA mortgages. Future risk: Climate Vuln Assessment.
Contact your local code enforcement office for specific penalty information.
This is one of the stricter rules in Cambridge's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.
The Bottom Line
Cambridge is tougher than many cities when it comes to environmental rules. Out of the 4 rules covered here, 4 are rated strict. If you are a homeowner, renter, or business owner in Cambridge, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.
These rules come from Cambridge's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.