Suffolk County, NY septic permits and regulations
Septic systems in Suffolk County, New York are permitted by Suffolk County Department of Health Services under 10 NYCRR Appendix 75-A.
Septic permit program
- Program type: County Health Department
- Authorized agent: Suffolk County Health Department
- Own septic program: No, uses New York state rules
- Local rules beyond the state: No
- Population: 1,525,920
Permit fee comparison
Average septic permit fee in Suffolk County: $1,354. New York average: $309.
Local rules
Suffolk County Sanitary Code Article 6 (amended 2018, with IA OWTS amendments effective July 1, 2019). Requires nitrogen-removing IA OWTS for new construction. Cesspool phase-out program. 3-year inspection cycle for IA systems.
What SepticPro has on file for Suffolk County
- 4 permit fees with sources
- The agency phone, email and office address
- Setback distances
- Soil and perc test requirements
- Allowed system types
- System design rules
- Inspection requirements
- Maintenance and pumping rules
- Point-of-sale rules
- Installer, designer and pumper licensing
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Draw a permit-ready site plan for Suffolk County
Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for Suffolk County Department of Health Services. See how SepticPro site plans work.
Other New York counties
- Albany County
- Allegany County
- Bronx County
- Broome County
- Cattaraugus County
- Cayuga County
- Chautauqua County
- Chemung County
- Chenango County
- Clinton County
- Columbia County
- Cortland County
- Delaware County
- Dutchess County
- Erie County
- Essex County
- Franklin County
- Fulton County
- Genesee County
- Greene County
- Hamilton County
- Herkimer County
- Jefferson County
- Kings County
Data checked 2026-03-16. Always confirm requirements with Suffolk County Department of Health Services before applying.