PWSID
OH0900715
State
Ohio
City
FAIRFIELD
Population served
44,907
Primary source
Groundwater
Score history
▼ 1 point — the score moved from 100 to 99 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Sep 2024). Levels in parts per trillion (ppt).
GenX (HFPO-DA)
GenX (HFPO-DA)
5.7 ppt
limit 10 ppt
PFBA
5.7 ppt
limit —
PFPeA
3.6 ppt
limit —
PFHxA
3 ppt
limit —
Violations & enforcement
4
Violations on record
0
Unaddressed
1
Health-based
14
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Apr 2007. Official EPA record →
Recent enforcement actions
- State action · SOX Apr 2007
- State action · SOX Apr 2007
- State action · SIF Jul 1998
- State action · SIA Mar 1998
- State action · SIE Mar 1998
- State action · SIE Nov 1996
- State action · SIA Nov 1996
- State action · SOX Sep 1996
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Nitrate
4 stations · latest Nov 2020
Fluoride
4 stations · latest Nov 2020
Uranium
4 stations · latest Nov 2020
Arsenic
2 stations · latest Nov 2020
Manganese
1 station · latest Nov 2020
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system OH0900715 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.