Who is responsible for the water line between the street and my house in Centereach?

Where the line splits

SCWA's Rules and Regulations (revised June 1, 2025) draw the boundary at the property line:

• SCWA's side: the Authority, at its expense, maintains and when necessary replaces the service pipe and connections from the main to the property line, on public and private streets. The curb stop, valves and meter vault are for SCWA's exclusive use, so homeowners shouldn't open or operate them.
• Your side: the "private service line" is the water pipe from the meter vault to the house, and the rules say it is owned and maintained by the homeowner. You're also required to have a shutoff valve, preferably just inside the building wall, and any installation or repair must be done by a licensed plumber in a manner satisfactory to SCWA.
• The meter: it belongs to SCWA wherever it sits, and SCWA covers ordinary wear and tear. The customer pays if the meter is damaged by freezing, hot water or other outside causes.

Most SCWA meters sit in a vault near the street. If yours is inside, in a basement or utility room, SCWA's online service-line responsibility diagram shows how the boundary works for that setup, and the private service line still runs from the property line to the house.

What to do if you think the line is leaking or broken

1. Close your own main valve inside the house to stop water reaching the fixtures. Don't try to operate the curb stop or open the meter vault; under SCWA's rules those are SCWA's alone.
2. If water is coming up in the street or near the curb, or you have no water at all, report it to SCWA (Customer Service 631-698-9500, or Report an Issue on scwa.com). A break on the street side is SCWA's to fix.
3. If the leak is on your side of the property line, you'll need a licensed plumber. Check the license first with our guide on how to check a plumber's license in Suffolk County.
4. No water after a cold snap? SCWA's rules allow one free service call per year to investigate a no-water complaint caused by a freeze-up, and there's no charge if the problem turns out to be SCWA's responsibility. Calls you request outside normal business hours otherwise carry a service-call fee.

If the private line has to be replaced

SCWA sets the minimum standard for the pipe on your side:

• At least 4½ feet of soil cover (where groundwater makes that impractical, at least 1 foot into groundwater and never less than 40 inches of cover at low tide).
• Pipe of ASTM B88 Type K soft-tempered copper, or 200 PSI CTS potable plastic stamped NSF-PW, in the sizes SCWA allows. SCWA's new-service sheet calls for a minimum 1-inch line on new installations.
• SCWA inspects private service lines before accepting them. The first inspection is free; the customer or installer must be there and give inside access, and reinspections carry a fee.

Ask the plumber to confirm in writing the pipe material, the depth, and that they'll arrange the SCWA inspection. Ask too whether the Town of Brookhaven (or your village) needs a plumbing permit for the job.

Is my service line lead?

Very unlikely on SCWA water, but you can check your exact address. SCWA publishes a service-line material map for every account: green on both sides means verified non-lead on the customer side and the SCWA side, gray means lead, and white means unknown. If your address shows unknown, SCWA asks you to fill in the survey on that page, and it offers a free water test kit or visual inspection. In the inventory SCWA filed with the New York State Department of Health (certified October 15, 2024), 11 of 396,459 service lines were listed as lead and 54 as unknown. SCWA also notes that a non-lead service line doesn't rule out lead solder or fittings inside older homes, especially plumbing installed before 1960.

Does insurance or a repair plan cover it?

SCWA says repairs to service lines on your property are often excluded from basic homeowners insurance when the cause is normal wear and tear, so check your own policy. SCWA has partnered with HomeServe, an independent company, to offer optional repair plans for exterior water and sewer or septic lines. SCWA says the plans are voluntary, cost SCWA nothing, and that declining one doesn't change your water service. Compare the plan's coverage limits with your policy before buying.

Sources

• Suffolk County Water Authority, Rules & Regulations, revised June 1, 2025 (definition of private service line; Section 4 maintenance and replacement, service on customer's property, private service line specifications; Section 5 meters; service-call and inspection rules)
• Suffolk County Water Authority, Service Line Responsibility diagram and Meter Responsibilities
• Suffolk County Water Authority, Installation Requirements for Water Services (1-inch minimum, inspection procedure)
• Suffolk County Water Authority, Do I Have a Lead Service Line? (address lookup, color key, free test kit)
• New York State Department of Health, SCWA service line inventory summary (NY5110526)
• Suffolk County Water Authority, Homeowner Education and Protection Program and HomeServe partnership

General information checked against SCWA and New York State sources on Oct 31, 2026. Homes on a private well or a village or other water district should check with that supplier, since the boundary can differ.

Related services

• Leak Detection & Repair
• Frozen & Burst Pipes