Drinking water quality · 2026
What's in Regional Water Authority, CT tap water
1 contaminants were measured in the Regional Water Authority, CT water system's 2026 annual report. Each is shown below against its federal limit.
- Reporting year
- 2026
- Contaminants measured
- 1
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CT
Where your water comes from · EPA SDWIS
Regional Water Authority, CT's drinking water comes from ground water, drawn from 37 sources.
Source
- NORTH SLEEPING GIANT · 5
- NORTH CHESHIRE · 4
- SEYMOUR · 4
- LAKE DAWSON · 2
- + 16 more
Treatment
- LAKE GAILLARD TREATMENT PLANT
- LAKE SALTONSTALL WATER TREATMENT PLANT
- LAKE WHITNEY WATER TREATMENT PLANT
- + 9 more
Distribution
Also buys water from SOUTHINGTON WATER DEPARTMENT, AQUARION-VALLEY, and 3 more.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0 mg/L90th percentileAt the tap | 0.015 mg/LAction level | None detected |
People also ask about Regional Water Authority, CT's water
+Is Regional Water Authority, CT tap water safe to drink in 2026?
Every one of the 1 contaminants measured in Regional Water Authority, CT's 2026 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Regional Water Authority, CT tap water?
1 contaminants were measured in Regional Water Authority, CT's 2026 Consumer Confidence Report, spanning metals. 1 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Regional Water Authority, CT's 2026 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Regional Water Authority, CT's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2026 report; a new report will replace it once the utility publishes its next annual update.