Showing ordinances that apply to Mount Sinai, NY
Mount Sinai is an unincorporated community (population 11,623) in Suffolk County, New York. Because Mount Sinai is not an incorporated city, it does not have its own municipal code. Instead, Suffolk County ordinances apply directly to properties here. The stormwater management rules below are the ones that govern your area.
Suffolk County is covered by NY SPDES MS4 general permit. All disturbances over 1 acre require SWPPP; Peconic Estuary and South Shore Estuary watershed projects trigger enhanced phosphorus controls. Suffolk County Article 6 regulates sanitary density to protect groundwater.
Suffolk County is a NYSDEC designated MS4 community under the Phase II stormwater program. Any soil disturbance of 1 acre or more requires a Stormwater Pollution Prevention Plan (SWPPP) and Notice of Intent filed with NYSDEC. Projects in the Peconic Estuary Program area or South Shore Estuary Reserve require enhanced phosphorus-reducing BMPs per NY Stormwater Design Manual Chapter 10. Suffolk County Sanitary Code Article 6 restricts sanitary flow density to 300 gpd/acre in Groundwater Management Zone III (Pine Barrens) and 600 gpd/acre elsewhere. Drywells and recharge basins required for all new impervious surface.
NY SPDES violations up to $37,500 per day. Suffolk DHS sanitary code violations $500-$2,000 per day. Federal CWA exposure adds criminal liability for willful discharge.
See how Mount Sinai's stormwater management rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.