Drinking water quality · 2024
· Verified
What's in Hartford, CT tap water
14 contaminants were measured in the Hartford, CT water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 14
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CT
Where your water comes from · EPA SDWIS
Hartford, CT's drinking water comes from surface water, drawn from 8 sources.
Source
- WEST HARTFORD RESERVOIR · 4
- RESERVOIR · 2
- BARKHAMSTED RESERVOIR
- NEPAUG RESERVOIR
Treatment
- RESERVOIR #6 WATER TREATMENT PLANT
- WEST HARTFORD WTP (LARGE BASIN)
- WEST HARTFORD WTP (SMALL BASIN)
- + 1 more
Distribution
Also buys water from NEW BRITAIN WATER DEPARTMENT, CTWC - NORTHERN REG-WESTERN SYSTEM, and 1 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.
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.7 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.103 mg/LAverageSystem-wide | 10 mg/LMCL | Within the limit |
| NitriteA compound from fertilizer runoff, sewage, and erosion of natural deposits. | Not detected mg/LAverageSystem-wide | 1 mg/LMCL | None detected |
| ChlorideA naturally occurring salt compound. | 9.64 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 5.2AverageSystem-wide | None set | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 0.159 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.007 mg/LAverageSystem-wide | 2 mg/LMCL | Within the limit |
| 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 |
| CalciumA naturally occurring mineral that contributes to water hardness. | 3 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 10.1 mg/LAverageSystem-wide | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.08 NTUAverageSystem-wide | 1 NTUMCL | Within the limit |
| AlkalinityA measure of the water's capacity to neutralize acids. | 14 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 7.43AverageSystem-wide | None set | Detected — no federal limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0AverageSystem-wide | 0MCLG | Detected — no federal limit |
People also ask about Hartford, CT's water
+Is Hartford, CT tap water safe to drink in 2024?
Every one of the 14 contaminants measured in Hartford, CT's 2024 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 Hartford, CT tap water?
14 contaminants were measured in Hartford, CT's 2024 Consumer Confidence Report, spanning inorganic chemicals, metals, and physical & aggregate. 8 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 Hartford, CT's 2024 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 Hartford, 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 2024 report; a new report will replace it once the utility publishes its next annual update.