Compare Regulations
Compare city/county requirements side-by-side (up to 4 jurisdictions)
Suffolk County(3 more)
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| Field | Local Suffolk County Suffolk County Department of Public Works / Individual town building departments |
|---|---|
| Permit | |
| Permit / Authorization | Suffolk County DPW Drainage Review / Town-level Building Permit |
| Submit To | Suffolk County Department of Public Works / Individual town building departments |
| Lead Time | County drainage review 4–8 weeks; town permits concurrent |
| Application Method | County drainage plans submitted to Suffolk County DPW; building permits via individual town |
| Fee | County review fees vary; town permit fees per project scope |
| Water Quality | |
| Impervious Cover Limit | No countywide cap; post-construction management per NYSDEC MS4 permit; Suffolk County Sanitary Code Article 7 governs on-site stormwater disposal |
| On-Site Treatment Required | Yes |
| Detention Required | Yes — Manage the first 1 inch of rainfall on-site per NYS Design Manual; drywells and leaching pools historically primary BMPs; enhanced nitrogen-reducing systems now required in some areas |
| Turbidity / Discharge Standard | Must comply with NYSDEC SPDES CGP; Peconic Estuary, Long Island Sound, and Great South Bay protections apply |
| SWPPP | |
| SWPPP / Local Plan Required | Yes — SWPPP per NYSDEC; drainage plan per Suffolk County DPW / Suffolk County Department of Health Services for groundwater discharge |
| PE Stamp Required | Yes |
| Inspections | |
| Inspection Requirements | Town inspections at permit milestones. County DPW and Health Department may inspect stormwater facilities. Post-construction maintenance required. |
| Inspector Qualification | NYSDEC-approved QI/TC per SPDES CGP; no additional county certification |
| Design & Zones | |
| Local Design Manual | NYS Stormwater Management Design Manual / Suffolk County Standards and Specifications for Drainage |
| Special Overlay Zones | Sole Source Aquifer / Special Groundwater Protection Areas (SGPAs), Peconic Estuary / Pine Barrens, South Shore Estuary / Great South Bay |