New York City is about to revise its watershed rules, and that includes how onsite systems are handled. Changes also include how the city Department of Environmental Protection will handle portable restrooms and holding tanks. The department will not approve them, but the new rule adopts standards consistent with state standards.
Among the changes proposed for onsite systems:
1. Approvals from the department will expire unless construction is substantially complete and a system is functioning as designed within five years for subdivision systems and two years for all other onsite systems.
2. Systems out of operation for five or more years
