Suffolk County Water Authority
Drinking water quality, contact, and Consumer Confidence Report
Serving 2 cities in NY · PWSID NY5110526
Suffolk County Water Authority serves 1,100,000 people. 1 health-based violation since 2020 in EPA's record — full violation history below.
- People served
- 1,100,000
- PFAS
- Detected (3 compounds)
- Health-based violations since 2020
- 1
Data sources: EPA SDWIS, Suffolk County Water Authority's published Consumer Confidence Report, and compliance monitoring reported to EPA by New York State Dept of Health.
This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.
Official Suffolk County Water Authority Resources
Suffolk County Water Authority Service Area
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This map shows the approximate service area for Suffolk County Water Authority. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
Suffolk County Water Authority Water Quality Grade
Not graded: Monitor
Suffolk County Water Authority reads Monitor. A letter grade is given only beside a Safe verdict.
Is Suffolk County Water Authority Water Safe to Drink?
Suffolk County Water Authority has reported 3 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. Suffolk County Water Authority has 1 health-based EPA violation since 2020 (EPA data as of Q2 2026), none of them open. We recommend reviewing individual city reports below for specific water quality details.
This utility serves 1,100,000 people across 2 cities in NY. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.
Get your water independently tested in New York →How does New York water quality rank nationally? →
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in New York
Learn more about the contaminants detected in Suffolk County Water Authority:
Suffolk County Water Authority Service Area
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Suffolk County Water Authority Contact & Information
Phone
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for Suffolk County Water Authority
| Name | Title | Phone | |
|---|---|---|---|
| J████ S████ | Water Treatment Supervisor | (555) ███-████ | j████@city████.gov |
| M████ J██████ | Utility Director | (555) ███-████ | m████@water████.org |
Water Sources & Treatment
Water Sources
Treatment Methods
Disinfectant Used
hypochlorite, other
Suffolk County Water Authority Consumer Confidence Report
A Consumer Confidence Report (CCR) is the EPA-mandated annual water-quality report every community water system must publish by July 1 each year (Safe Drinking Water Act §1414(c)(4)). It summarizes contaminants tested, MCL and MCLG comparisons, and any system violations from the prior calendar year.
A current CCR for Suffolk County Water Authority has not been published or validated on TapWaterData yet.
Residents: contact the utility directly using the phone number above, or check the EPA’s national CCR portal. Reports are typically distributed by mail or posted on the utility’s official website.
Suffolk County Water Authority Annual Water Quality Reports
Historical reports are being compiled. Check back soon for archived water quality data.
What is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.
EPA Health-Based Violations Since 2020
Suffolk County Water Authority has 1 health-based EPA violation since 2020 (EPA data as of Q2 2026), none of them open.
EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
| Violation | Contaminant or rule | Period | Status | Notice |
|---|---|---|---|---|
| Maximum Contaminant Level Violation, Average | Asbestos | Jul 2020 - Sep 2020 | Resolved | Tier 2 public notice |
Concerned about what's in your water?
You're viewing 3 contaminants above health-based guidelines here. Your own tap water can differ — upload your test (PDF or a photo) and we'll email a full plain-English reading of every number, free.
Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.
Upload my testRecommended Water Filters for Suffolk County Water Authority
Based on water quality data from cities served by Suffolk County Water Authority, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Filter guides for the contaminants detected here:
Frequently Asked Questions about Suffolk County Water Authority
Is Suffolk County Water Authority water safe to drink?
Does Suffolk County Water Authority have PFAS in its water?
How do I pay my Suffolk County Water Authority water bill?
How many people does Suffolk County Water Authority serve?
What cities does Suffolk County Water Authority serve?
Does Suffolk County Water Authority have any EPA violations?
What is Suffolk County Water Authority's phone number?
Where can I find Suffolk County Water Authority's Consumer Confidence Report?
Similar water utilities in New York
How we built this page
Water-quality and contact data on this page comes from public federal and state records. We update each utility's record whenever its underlying source publishes new data — typically within days of an EPA SDWIS refresh.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: Suffolk County Water Authority's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS. The compliance records it holds for this system are reported to EPA by New York State Dept of Health, the state's drinking-water primacy agency.
Spotted a data issue? Use the Spotted something off? link at the bottom of the page — corrections feed back into the next data refresh. Learn more about TapWaterData.
Are you Suffolk County Water Authority? Publish your 2027 CCR
TapWaterData runs a free CCR publishing service for community water systems. Claim this listing to publish your Consumer Confidence Report here — it inherits this page's search authority and reaches every customer who Googles Suffolk County Water Authority.
- EPA-compliant distribution. Satisfies the 2027 Revised CCR Rule direct-URL requirement with an auditable archive.
- Publish once a year. Agent-assisted workflow; no login setup for small systems.
- Inherits this page's reach. Your published CCR appears directly on the page customers already find on Google.
Free for operators. No card required. Typical setup: 5 minutes.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach Suffolk County Water Authority. For a problem with your water now (discolored water, no water, low pressure, a leak), contact Suffolk County Water Authority directly: 631-698-9500, the number it publishes on its website. Call 631-698-9500 (read on www.scwa.com on 2026-09-25)
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