Drinking water quality · 2024
· Verified
· PWSID CT0150011
What's in Bridgeport, CT tap water
2 contaminants in Bridgeport, CT's water sat at or above a federal limit, led by PFOA (Perfluorooctanoic acid) at 2.7x the limit.
- !2 contaminants at or above a federal limit — worst is PFOA (Perfluorooctanoic acid) at 2.7x
- !2 contaminants within 20% of a limit
- !11 of 27 core regulated contaminants reported — 16 never appear in this report
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −50 contaminants at or above a federal limit
- −8 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −13 core regulated contaminants never reported (11/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- PFOA (Perfluorooctanoic acid)2.7× the federal limit10.9 ng/L · limit 4 ng/L
Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
higher than 85% of U.S. systems
- PFOS (Perfluorooctane sulfonic acid)1.6× the federal limit6.6 ng/L · limit 4 ng/L
Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
higher than 70% of U.S. systems
- HAA585% of the federal limit51 ug/L · limit 60 ug/L
Long-term exposure above the federal limit is associated with an increased cancer risk.
higher than 90% of U.S. systems
- TTHM80% of the federal limit64 ug/L · limit 80 ug/L
Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.
higher than 85% of U.S. systems
+22 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Chlorine | 0.87 mg/L | 4 mg/L |
| Lead | 0.003 mg/L | 0.015 mg/L |
| Fluoride | 0.71 mg/L | 4 mg/L |
| Turbidity | 0.15 NTU | 1 NTU |
| Sulfate | 35 mg/L | 250 mg/L |
| Copper | 0.17 mg/L | 1.3 mg/L |
| Nitrate | 0.339 mg/L | 10 mg/L |
| Barium | 0.015 mg/L | 2 mg/L |
| Chloride | 36 mg/L | — |
| Sodium | 33 mg/L | 100 mg/L |
| Total Coliform | 0 | 0 |
| Perfluorohexanesulfonic acid | Not detected ng/L | 10 ng/L |
| Color | 2 | — |
| Hardness | 3 | — |
| pH | 7.4 | — |
| TOC | 1.6 | — |
| Dalapon | Not detected ug/L | 200 ug/L |
| PFPeA | 6.7 ng/L | — |
| PFBA | 7.6 ng/L | — |
| PFHpA | 3.9 ng/L | — |
| PFBS | 4.1000000000000005 ng/L | — |
| PFHxA | 7.4 ng/L | — |
What this report doesn't tell you
16 of the 27 contaminants a community water system normally reports do not appear anywhere in Bridgeport, CT's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
PFAS — EPA UCMR5 (2023–2025)
2 PFAS compounds above EPA limits in Bridgeport, CT
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFOA (Perfluorooctanoic acid)
● Over EPA limit (2.7×)PFOS (Perfluorooctane sulfonic acid)
● Over EPA limit (1.6×)PFPeA
● Detected (no federal limit)PFBA
● Detected (no federal limit)PFHpA
● Detected (no federal limit)PFBS
● Detected (no federal limit)PFHxA
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Bridgeport, CT's drinking water comes from surface water, drawn from 17 sources.
Source
- WESTPORT · 4
- COLEYTOWN · 2
- ASPETUCK RESERVOIR
- EASTON LAKE RESERVOIR INTAKE
- + 9 more
Treatment
- COLEYTOWN WELLFIELD TREATMENT PLANT
- EASTON WATER TREATMENT PLANT
- HEMLOCKS WATER TREATMENT PLANT
- + 3 more
Distribution
Also buys water from NORWALK FIRST TAXING DISTRICT, AQUARION-STAMFORD, 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.
- Treatment technique violationHealth-based2 violations on record · most recent Jan 1992resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗