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PUBLIC WATER SYSTEM REPORT

Is SUFFOLK COUNTY WATER AUTHORITY Water Safe to Drink in 2026?

New York · PWSID NY5110526 · Ground water

Population served
1,100,000
Cities served
BABYLON (T), BROOKHAVEN (T), EAST HAMPTON (T), HUNTINGTON (T), ISLIP (T), RIVERHEAD (T), SMITHTOWN (T), SOUTHAMPTON (T), SOUTHOLD (T)
State / jurisdiction
New York (NY)
PWSID
NY5110526
F
TAP WATER GRADE
High risk
Model score 0/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
42 violation record(s) in the latest EPA SDWA quarterly snapshotPFAS above EPA MCL (UCMR5 regulated compounds)

Water operator? Publish your official 2027 CCR here — residents already find this page. Claim free →

CONTAMINANTS — EPA UCMR5 MONITORING
Compound
Level (ppt)
EPA limit
Health guideline
Status
PFHxA
43.5
—
Within / n/a
Unregulated (monitored)
PFPeA
39.4
—
Within / n/a
Unregulated (monitored)
6:2 FTS
23.6
—
Within / n/a
Unregulated (monitored)
PFOSregulated
17.4
4 ppt
Exceeds
Above health advisory
PFBA
12.6
—
Within / n/a
Unregulated (monitored)
PFHxSregulated
10.8
10 ppt
Exceeds
Above health advisory
PFHpA
9.6
—
Within / n/a
Unregulated (monitored)
PFOAregulated
6.5
4 ppt
Exceeds
Above health advisory
PFNAregulated
5.7
10 ppt
Within / n/a
MCL exceedance
PFBS
5.2
—
Within / n/a
Unregulated (monitored)

Source: EPA UCMR5 · ppt = parts per trillion · MCL = enforceable limit for regulated PFAS

VIOLATIONS HISTORY (FEDERAL SNAPSHOT)

EPA’s national SDWA quarterly files associate 42 violation-related records with this system in the same reporting quarter as the utility snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.

Get alerts if this system's EPA data changes:
WHAT TO DO ABOUT IT

Based on SUFFOLK COUNTY WATER AUTHORITY's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.

TOP PICKS FOR SUFFOLK COUNTY WATER AUTHORITY
⚠ EPA violations / contaminants in monitoring data
#1
Waterdrop G3P800 RO
EDITORS PICK
Waterdrop  ·  ~$849
Tankless 800 GPD, removes 99%+ PFAS & lead, 10-stage filtration. Smart faucet TDS display.
WHY THIS FOR SUFFOLK COUNTY WATER AUTHORITY · Chosen for SUFFOLK COUNTY WATER AUTHORITY because PFAS was detected at 43.5 ppt in UCMR5 — above the 4 ppt limit for some regulated compounds — and this system shows 42 violation record(s) in the latest federal snapshot. RO removes 99%+ of PFAS at the tap.
#2
Aquasana SmartFlow RO
MOST CERTIFIED
Aquasana  ·  ~$449
WQA Gold Seal + NSF 42/53/58/401. Most certifications of any under-sink RO. Removes 90+ contaminants.
#3
AquaTru Under-Sink RO
EASIEST FILTER CHANGE
AquaTru  ·  ~$375
NSF 42/53/58 certified. Quick-change filters, no tools. Compact tankless design, 4-stage filtration.
Not sure which filter is right for you? Take the 3-question quiz →
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STAY INFORMED
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