Water Use Rules in Nassau County, NY (2026)

3 rules for unincorporated Nassau County, New York.

Verified from official government sources

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

Lawn Watering Restrictions

Nassau lawn-watering rules vary by water provider, but most public and private utilities limit irrigation to odd or even days and prohibit midday watering to conserve groundwater drawn from the Sole Source Aquifer.

Lawn Watering Schedules

Some Restrictions

Full ordinance details →Official source ↗

Turf Replacement Rebates

Nassau encourages replacing turf with drought-tolerant and native plants through education and rebates, supporting Sole Source Aquifer protection. Programs are voluntary, with no mandatory turf removal at the county level.

Turf Replacement and Native Landscaping

Few Restrictions

Full ordinance details →Official source ↗

Leak Reporting Duty

Nassau water utilities require prompt reporting and repair of customer-side leaks to protect the Sole Source Aquifer. Water districts may issue notices when meter data shows continuous flow indicating an undetected leak.

Water Leak Reporting and Repairs

Some Restrictions

Full ordinance details →Official source ↗

All Nassau County ordinances

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

Nassau County Ordinance Hub →