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PUBLIC WATER SYSTEM REPORT

Is REGIONAL WATER AUTHORITY Water Safe to Drink in 2026?

Connecticut · PWSID CT0930011 · Surface water

Population served
418,900
Cities served
ANSONIA, BETHANY, BRANFORD, CHESHIRE, DERBY, EAST HAVEN, HAMDEN, MERIDEN, MILFORD, NEW HAVEN, NORTH BRANFORD, NORTH HAVEN, ORANGE, PROSPECT, SEYMOUR, SOUTHINGTON, WALLINGFORD, WEST HAVEN, WOLCOTT, WOODBRIDGE
State / jurisdiction
Connecticut (CT)
PWSID
CT0930011
F
TAP WATER GRADE
High Risk
Model score 43/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
62 violation record(s) in the latest EPA SDWA quarterly snapshotPFAS above EPA MCL (UCMR5 regulated compounds)
CONTAMINANTS — EPA UCMR5 MONITORING
Compound
Level (ppt)
EPA limit
Health guideline
Status
PFOSregulated
10.7
4 ppt
Exceeds
Above health advisory
PFOAregulated
7.1
4 ppt
Exceeds
Above health advisory
PFBS
3.5
—
Within / n/a
Unregulated (monitored)
PFPeA
3.1
—
Within / n/a
Unregulated (monitored)

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

Official Consumer Confidence Report (CCR)

The official 2026 CCR for REGIONAL WATER AUTHORITY has not yet been published on WaterCheckup.

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Residents: Your public water system is required by EPA to publish an annual CCR by July 1st each year. Contact REGIONAL WATER AUTHORITYdirectly to request a copy, or check the EPA's national CCR portal at cfpub.epa.gov/ccr.

VIOLATIONS HISTORY (FEDERAL SNAPSHOT)

EPA’s national SDWA quarterly files associate 62 violation-related records with this system in the same reporting quarter as the public water system 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 REGIONAL WATER AUTHORITY's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.

Clean water splash — certified water filter recommendations

Certified Filter Recommendations

Matched to what's actually in your water

TOP PICKS FOR REGIONAL WATER AUTHORITY
⚠ EPA violations / contaminants in monitoring data
#1
Waterdrop G3P600 RO
EDITORS PICK
Waterdrop  ·  ~$439
Tankless 600 GPD, removes 99%+ PFAS & lead, 10-stage filtration. Smart faucet TDS display.
WHY THIS FOR REGIONAL WATER AUTHORITY · Chosen for REGIONAL WATER AUTHORITY because PFAS was detected at 10.7 ppt in UCMR5 — above the 4 ppt limit for some regulated compounds — and this system shows 62 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 →
See all public water systems in Connecticut →
STAY INFORMED
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