Am I responsible for all runoff from my property?

YES. All owners are responsible for keeping water originating from their property from flowing onto adjacent properties. This includes any sediment carried by water, especially into roadways (public or private) where storm drains or adjacent sensitive wetlands or waterways might be negatively impacted. The Brewster Department of Public Works is constantly working to keep its extensive stormwater drainage systems clean and functioning properly. If they see evidence of discharge into roadway from your property, they will initiate enforcement.

With regard to grading or landscape construction associated with a building permit, the Massachusetts Building Code 780 CMR Section 401.3 states that, "Temporary and finished grading shall not direct nor create flooding or damage to adjacent property during or after completion of construction."  See The Building or Planning Department web pages for Stormwater Permit information.