PFAS in New Haven, CT Drinking Water
PFAS data for New Haven, Connecticut · 418,900 residents · 26 ZIP codes
Across the water systems that serve New Haven, Connecticut, PFAS has appeared in EPA compliance samples — standard municipal treatment targets this contaminant, though detections in the compliance record indicate it has reached household taps at measurable levels.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-05-14
PFAS in New Haven Tap Water
PFAS has been detected in New Haven, Connecticut drinking water at a maximum level of 0.0107 ppt — below the EPA MCL of 4 ppt (PFOA/PFOS individually).
This analysis covers 418,900 residents across 26 ZIP codes in New Haven.
New Haven's overall water quality grade is C (67/100).
Is PFAS in New Haven Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or granular activated carbon filter certified under NSF 53 / NSF 58 and testing your water independently.
PFAS Levels by ZIP Code
| ZIP Code | PFAS Level | EPA Limit | Status |
|---|---|---|---|
| 06501 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06502 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06503 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06504 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06505 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06506 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06507 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06508 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06509 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06510 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06511 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06513 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06515 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06519 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06520 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06521 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06530 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06531 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06532 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06533 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06534 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06535 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06536 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06537 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| 06538 | 15 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
| ...1 more ZIP codes |
Average pfas level across New Haven: 15 ppt
Health Effects of PFAS
- Increased risk of kidney and testicular cancer
- Thyroid disease and immune system suppression
- Reproductive problems and reduced fertility
- Elevated cholesterol and liver effects
- Developmental effects in infants and children
Health risk severity: High. Governed by the PFAS National Primary Drinking Water Regulation (2024).
How PFAS Gets Into Drinking Water
- Firefighting foam (AFFF) used at military bases and airports
- Industrial manufacturing (non-stick coatings, stain-resistant fabrics)
- Wastewater treatment plants that receive industrial discharge
- Landfill leachate from PFAS-containing consumer products
What to Do About PFAS in New Haven Water
- Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
- Granular activated carbon (GAC) filters remove some PFAS compounds
- Look for NSF 53 or NSF 58 certification specifically tested for PFAS
- Pitcher filters with activated carbon provide partial reduction
Look for filters certified under NSF 53 / NSF 58 for pfas removal.