Environmental Rules in Manchester, NH (2026)
2 verified environmental rules for Manchester, New Hampshire, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Manchester requires anyone starting land-disturbing site work, grading, or construction to file an EPA Notice of Intent and get a city-approved Storm Water Pollution Prevention Plan before breaking ground.
Manchester Stormwater Permit Rules
Some RestrictionsManchester, NH Code of Ordinances § 54.05(A)
No land owner or land operator shall begin any site work on any building(s), grading or other land development or any land disturbance activities (as outlined in § 54.06) without first submitting a Notice of Intent (NOI) to EPA Washington. Owner must also have received acknowledgment, have a Department of Highways approved Storm Water Pollution Prevention Plan and meet the requirements of this ...
Flood Zones
Manchester's on-site sewage disposal code prohibits building new septic systems in flood-prone areas designated on the city's official flood-plain map, one of several siting restrictions enforced by the Health Department.
Manchester Bans Septic Systems in Flood Zones
Some RestrictionsManchester City Code § 53.05(D)
Sewage disposal systems shall not be constructed in flood-prone areas as designated on the official flood-plain map of the city, and shall be located at least 500 feet from the surface water of Lake Massabesic and 100 feet from any other surface water or private water supply. (E) Minimum lot sizes shall be determined by slope and soil type and shall be in accordance with guidelines establi...