Which water companies serve ZIP 02601?
EPA lists 2 water systems for ZIP 02601 in the Hyannis, MA area. A ZIP is a postal boundary, not a service area, so the name on your water bill decides which record applies.
Two water systems on record for ZIP 02601
Each card shows that system’s own record, never a blend. Pick one to see its full results below.
- People served
- 35,000
- EPA violations
- No open EPA violations as of 2026-09-16
- Latest lead result
- Not detected (2025)
- Results on record
- 31 results · 0 above a listed reference
- People served
- 5,400
- EPA violations
- No health-based violations on EPA record since 2016
- Latest lead result
- 1.35 µg/L (2026)
- Results on record
- 31 results · 2 above a listed reference
Test results for Hyannis Water System, Town of Barnstable
Results describe the water system, not a specific tap in ZIP 02601. Each bar marks the listed reference for that substance.
- above a listed reference
- 0
- detected, within reference or no limit
- 3
- aesthetic measures
- 0
- tested, not detected
- 28
- PFHxAPerfluorohexanoic acid (PFHxA)6.5ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Below the listed reference · EPA UCMR 5 · 2023Evidence
- PFBAPerfluorobutanoic acid (PFBA)16.8ng/LNo federal or state limit; shown for transparencyNo federal or state limit · EPA UCMR 5 · 2023Evidence
- PFPeAPerfluoropentanoic acid (PFPeA)29.8ng/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 28Hide list
- 11Cl-PF3OUdS
- 4:2 FTS
- 6:2 FTS
- 8:2 FTS
- 9Cl-PF3ONS
- ADONA
- HFPO-DA (GenX)
- NEtFOSAA
- NFDHA
- NMeFOSAA
- PFBS
- PFDA
- PFDoA
- PFEESA
- PFHpA
- PFHpS
- PFHxS
- PFMBA
- PFMPA
- PFNA
- PFOA
- PFOS
- PFPeS
- PFTA
- PFTrDA
- PFUnA
- Lithium
- Lead (90th percentile)
Go from this record to a decision.
Nothing here is above its listed reference. Lead mostly enters from building plumbing, which this system-level record can’t see.
- UNDERSTANDThe Hyannis city report
The same system record, with every finding and its source.
Open city report → - SOLVETreatment for lead
Lead-certified carbon filter, or reverse osmosis. Check for NSF/ANSI 53 (lead).
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 02601?
2 public systems are on record for ZIP 02601 (Hyannis, MA): Hyannis Water System, Town of Barnstable, Barnstable Fire District. A ZIP is a postal boundary, not a service area. Confirm your supplier on your water bill.
Is the water in ZIP 02601 the same as Hyannis's?
ZIP 02601 falls within the Hyannis, MA 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 02601?
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.