Is Hartford Tap Water Safe? What Metropolitan District Commission (MDC)’s EPA Records Show
Metropolitan District Commission (MDC), which serves about 390,887 people in greater Hartford, Connecticut, reported no PFAS above reporting limits in the EPA’s UCMR5 monitoring (2023-2025). Non-detect means not found above the EPA’s reporting floor in that round — not that the water was never tested again. Its most recent EPA-record lead 90th-percentile was non-detect (below the reporting limit) — under the current 15 ppb action level.
See the full interactive report for this system — every PFAS analyte, lead and copper rounds, violations, and the filter that handles what was found: open the Hartford report → Or check YOUR exact ZIP: check your water by ZIP →
Beyond PFAS: state-record results over an EPA limit
- tthm: 160 ug/L (highest sample 2012-02-17; 2012-2019 records, not current)
- haa5: 76.21 ug/L (highest sample 2012-02-17; 2012-2019 records, not current)
These are the highest samples in the state/EPA record for this system — a snapshot, not a current reading; the utility’s Consumer Confidence Report is the official current record.
Common questions about Hartford water
Is Hartford's tap water safe to drink?
Nothing in these records is above a current EPA limit, but there is something worth watching — a detection below the limit, an older exceedance, or a violation on record. See the card above. These are system-level records for public water systems, not a reading of any individual home’s tap, and they do not cover private wells. Confirm your own utility’s current Consumer Confidence Report, and test your tap if you’re unsure.
Does Hartford have PFAS in its drinking water?
Metropolitan District Commission (MDC) reported no PFAS above reporting limits in UCMR5 monitoring.
Who supplies Hartford's drinking water?
Metropolitan District Commission (MDC) (PWSID CT0640011) serves about 390,887 people in greater Hartford, Connecticut, per EPA SDWIS records. A metro area is usually served by more than one water system — this page covers the area’s largest. Suburbs and neighboring towns often have their own systems with their own results; check your exact ZIP for yours.
How do I check my exact address?
Water systems report by system, not by address. Enter your ZIP on the water checker to see the system(s) serving it and what each reported.
Statewide, 43.5% of Connecticut’s UCMR5-tested systems reported PFOA or PFOS over the EPA limit — see the Connecticut water page.
Other large systems in Connecticut
See the 100 largest US water systems, water quality by state, and the national PFAS data study.
Sources: EPA UCMR5 occurrence data, Feb 2026 release (~95% complete; final reporting 2026) (2026-06); lead/copper + violations: EPA SDWIS via ECHO; population served: EPA SDWIS via ECHO (system-reported population served). PWSID CT0640011. Public-domain federal/state records; assembly by WaterByTheBook. Built 2026-07-25. Plain-markdown mirror: https://waterbythebook.com/md/hartford.md