Environmental Rules in Southborough, MA (2026)
5 verified environmental rules for Southborough, Massachusetts, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
In Southborough, a permitted project cannot be approved by the Conservation Commission unless it produces no net increase in the rate of stormwater runoff, no net increase in volume across site boundaries (with limited exceptions), and no adverse impact on abutting properties. The Board of Health separately bars dumping pollutants into the storm drain system under Chapter 225.
Southborough Stormwater Runoff and Drainage Rules
Some RestrictionsSouthborough Code § 154-9(A)(4)-(6)
(4) There shall be no net increase in the rate of stormwater runoff from the site; (5) There shall be no net increase in the volume of stormwater runoff across the boundaries of the site unless provisions have been made to tie into the public storm drains, where available, with the approval of the appropriate parties or authorities, or the Commission has determined that all reasonable provisi...
Erosion Control
In Southborough, construction that disturbs one acre or more of land needs a stormwater and erosion control permit from the Conservation Commission. Section 154-9 requires temporary erosion and sedimentation controls during construction, a gravel apron 15 feet wide and at least 24 feet long at paved-way access points, and siltation barriers until the disturbed area is permanently stabilized.
Southborough Construction Erosion and Sediment Control
Some RestrictionsSouthborough Code § 154-9(A)
A. The Commission shall not approve any application for a stormwater and erosion control permit unless it finds that BMPs will be employed to meet the following requirements: ... (10) During construction, temporary erosion and sedimentation control measures will be employed in accordance with the approved plan; (11) During construction, any site access from a paved public way shall be improve...
Flood Zones
In Southborough, the Wetland and Floodplain District is an overlay on every other district and covers the FEMA special flood hazard areas in Zones A, AE, AH, AO and A99 on the Worcester County flood map dated July 16, 2014. Section 174-8.9 requires a permit for all proposed construction or other development there, and the Conservation Agent is the floodplain administrator.
Southborough Wetland and Floodplain District Rules
Significant RestrictionsSouthborough Code § 174-8.9(B), (D)(1)
B. The Wetland and Floodplain District is considered to be an overlay district. The District includes all special flood hazard areas within the Town of Southborough designated as Zone A, AE, AH, AO, or A99, on the Worcester County Flood Insurance Rate Map (FIRM) dated July 16, 2014, issued by the Federal Emergency Management Agency (FEMA) for the administration of the National Flood Insurance P...
Vehicle Idling Restrictions
In Southborough, no person can run the engine of a standing vehicle over 10,000 pounds GVW for more than 10 minutes while it is parked on residential property or on a street or way abutting it. Section 130-4(B) exempts enclosed structures and delivery or pickup vehicles that need the engine to load or unload.
Southborough Truck Idling Limit (10 Minutes)
Some RestrictionsSouthborough Code § 130-4(B)
The following activities are prohibited if they generate an unreasonable disturbance: ... B. Noise from truck idling. No person shall operate an engine of any standing motor vehicle with a weight in excess of 10,000 pounds GVW (gross vehicle weight) for a period in excess of 10 minutes when such vehicle is parked on a residential property or on a street or way abutting a residential property, e...
Flood Elevation Requirements
In Southborough, base flood elevation is the reference point for building in the Wetland and Floodplain District. Where FEMA has published no elevation or floodway data for an A Zone, the Building Department uses the best available federal, state or other data to require elevating residential structures, and developments greater than 50 lots or five acres, whichever is less, must supply their own technical data.
Southborough Base Flood Elevation Requirements
Some RestrictionsSouthborough Code § 174-8.9(F)(1), (G)(2)(a)
F. Unnumbered A Zones. (1) In A Zones, in the absence of FEMA BFE data and floodway data, the Building Department will obtain, review, and reasonably utilize base flood elevation and floodway data available from a federal, state, or other source as criteria for requiring new construction, substantial improvements, or other development in Zone A as the basis for elevating residential structures ...