ZIP 06504: New Haven, CT Tap Water
ZIP 06504 is in the New Haven, CT area, most likely served by REGIONAL WATER AUTHORITY. A ZIP is a postal boundary, not a service area, so confirm your supplier on your water bill.
Test results for REGIONAL WATER AUTHORITY
Results describe the water system, not a specific tap in ZIP 06504. Each bar marks the listed reference for that substance.
- above a listed reference
- 2
- detected, within reference or no limit
- 2
- aesthetic measures
- 0
- tested, not detected
- 27
- PFOSPerfluorooctanesulfonic acid (PFOS)10.7ng/L4.0 ng/L federal MCL (2024)Above limit · EPA UCMR 5 · 2023Evidence
- PFOAPerfluorooctanoic acid (PFOA)7.1ng/L4.0 ng/L federal MCL (2024)Above limit · EPA UCMR 5 · 2023Evidence
- PFBSPerfluorobutanesulfonic acid (PFBS)3.5ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Below the listed reference · EPA UCMR 5 · 2023Evidence
- PFPeAPerfluoropentanoic acid (PFPeA)3.1ng/LNo federal or state limit; shown for transparencyNo federal or state limit · EPA UCMR 5 · 2023Evidence
Not measured: no utility report on file. Hardness affects fixtures and appliances, not health.
Below each lab’s reporting limit. A result, not zero, and it covers only what was tested.
Show all 27Hide list
- 11Cl-PF3OUdS
- 4:2 FTS
- 6:2 FTS
- 8:2 FTS
- 9Cl-PF3ONS
- ADONA
- HFPO-DA (GenX)
- NEtFOSAA
- NFDHA
- NMeFOSAA
- PFBA
- PFDA
- PFDoA
- PFEESA
- PFHpA
- PFHpS
- PFHxA
- PFHxS
- PFMBA
- PFMPA
- PFNA
- PFPeS
- PFTA
- PFTrDA
- PFUnA
- Lithium
- Lead (90th percentile)
Go from this record to a decision.
Two results are above their listed reference. Lead mostly enters from building plumbing, which this system-level record can’t see.
- UNDERSTANDThe New Haven city report
The same system record, with every finding and its source.
Open city report → - SOLVETreatment for PFAS
Reverse osmosis, or carbon certified for PFAS. Check for NSF/ANSI 58 or 53, with PFOA/PFOS/PFBS/PFPeA named on the listing.
See treatment → - TESTTest your own tap
The only way to see what your building adds.
How to test →
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Which water system serves ZIP 06504?
The public system on record for ZIP 06504 (New Haven, CT) is REGIONAL WATER AUTHORITY. A ZIP is a postal boundary, not a service area. Confirm your supplier on your water bill.
Is the water in ZIP 06504 the same as New Haven's?
ZIP 06504 falls within the New Haven, CT area, but a ZIP code can span more than one utility. Read the serving system's own record for the results that apply to your address.
How do I find the exact water system for ZIP 06504?
Check the utility name on your water bill, or resolve it from your street address with Find My Water. The ZIP-level view lists candidate systems, not a confirmed household match.