5 county-level rules, plus city-specific rules for 3 cities in Worcester County, Massachusetts.
Verified from official government sources
Worcester County MA municipalities regulate stormwater under the MA Wetlands Protection Act (MGL c. 131, §40), MassDEP Stormwater Standards, and EPA MS4 General Permit requirements. Most Worcester County cities and towns (Worcester, Leominster, Fitchburg, Gardner, Shrewsbury, Westborough) operate under MS4 permits requiring stormwater bylaws, illicit discharge detection, and post-construction controls for projects disturbing 1+ acres. Conservation Commission review required for work within 100 ft of wetlands.
MGL c. 131, § 40 — Removal, fill, dredging or altering of land bordering waters (Wetlands Protection Act)
Section 40. No person shall remove, fill, dredge or alter any bank, riverfront area, fresh water wetland, coastal wetland, beach, dune, flat, marsh, meadow or swamp bordering on the ocean or on any estuary, creek, river, stream, pond, or lake, or any land under said waters or any land subject to tidal action, coastal storm flowage, or flooding, other than in the course of maintaining, repairing...
Worcester County MA requires erosion and sediment control measures under MassDEP Stormwater Standard 8, local MS4 construction site bylaws, and the state Wetlands Protection Act (MGL c. 131, §40). Silt fence, straw wattles, stabilized construction entrances, and inlet protection are standard. Sites disturbing 1+ acres must prepare a Stormwater Pollution Prevention Plan (SWPPP) under EPA Construction General Permit. Disturbed areas must be stabilized within 14 days of inactivity.
Worcester County MA is entirely inland with no Atlantic coastline, so MA Coastal Zone Management (CZM) regulations do not apply. Development near inland waters including Wachusett Reservoir, Quabbin Reservoir watershed, Lake Quinsigamond, and the Blackstone/Nashua/Quinebaug Rivers is regulated under the Wetlands Protection Act (MGL c. 131, §40) and Massachusetts Watershed Protection Act (MGL c. 92A 1/2) for DCR-protected watersheds. No coastal bluff, dune, or seawall rules apply.
Worcester County has significant flood hazard areas along the Blackstone River and its tributaries. FEMA released preliminary Blackstone River Watershed flood map updates on November 26, 2024 — the first major update since 2011 — with new maps expected to take effect in summer 2028. Flood insurance is required for federally backed mortgages in Special Flood Hazard Areas (SFHA, Zone AE). No county floodplain ordinance; each city/town administers its own FEMA-compliant floodplain management program.
Worcester County MA regulates grading and drainage through local zoning, the MA State Building Code (780 CMR), and the Wetlands Protection Act (MGL c. 131, §40). Grading permits are typically required for excavation or fill exceeding 100 cubic yards. Drainage must not be redirected onto adjacent properties under common-law nuisance doctrine. Retaining walls over 4 feet in height require building permits and engineered plans under 780 CMR 1807.
3 cities in Worcester County have their own environmental rules rules. Each link goes to that city's dedicated page with code citations.
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Worcester County Ordinance Hub →