Water Use Rules in Suffolk County, NY (2026)

3 rules for unincorporated Suffolk County, New York.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Suffolk County. If you live within an incorporated city, that city's own rules apply — see the city list below.

Lawn Watering Restrictions

The Suffolk County Water Authority enforces an odd-even outdoor watering schedule from May through September to manage peak demand on the sole-source aquifer that supplies 100 percent of county drinking water.

SCWA Odd-Even Lawn Watering Schedule

Some Restrictions

Full ordinance details →Official source ↗

Turf Replacement Rebates

The Suffolk County Drinking Water Protection Program, funded by a quarterly water-quality surcharge, supports turf-to-native conversion incentives that reduce fertilizer runoff and irrigation demand on the sole-source aquifer.

Drinking Water Protection Program Funded Lawn Conversion

Few Restrictions

Full ordinance details →Official source ↗

Leak Reporting Duty

Customers of the Suffolk County Water Authority and private well owners can report leaks, water-quality concerns, and main breaks through SCWA, the Suffolk County Department of Health Services, and the New York State drinking-water hotline.

Drinking Water Leak and Quality Reporting

Some Restrictions

Full ordinance details →Official source ↗

All Suffolk County ordinances

See every category we cover for Suffolk County — parking, noise, fences, fires, animals, pools, and more.

Suffolk County Ordinance Hub →