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Greene County, OH Water Quality

Water quality data for 11 public water systems serving Greene County, Ohio — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 11 water systems · 12 cities
✅
Excellent — All Systems Performing Well

Water quality across the county is outstanding with minimal violations and very low lead levels.

A

Greene County Earns a A

Greene County: 12 communities across 11 water systems. 100.0% have no open violations.

  • Median lead where detected: 2.75 ppb
  • 10 communities with a lead detection, 2 reporting none detected
  • 2 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
2.75 ppb
Median Lead Level
County-wide, 90th percentile
11
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Beavercreek
    Not detected
    No federal limits exceeded on record
    A
  • Fairborn
    2.70 ppb
    No federal limits exceeded on record
    A
  • Cedarville
    3.40 ppb
    No federal limits exceeded on record
    A
  • Jamestown
    2.80 ppb
    No federal limits exceeded on record
    B
  • Shawnee Hills
    2.80 ppb
    No federal limits exceeded on record
    B
⚠ Needs Attention
  • Wright-Patterson AFB
    Not detected
    PFAS above the limit at 2 of 2 sampling points
    D
  • Yellow Springs
    2.30 ppb
    PFAS above the limit at 1 of 1 sampling points
    B
  • Xenia
    1.80 ppb
    1 health-based violation since 2015
    A
  • Bellbrook
    3.50 ppb
    1 health-based violation since 2015
    B
  • Beavercreek
    Not detected
    No federal limits exceeded on record
    A
County Lead Level — Median 2.75 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.75 ppb — 18.3% of the federal action level
Systems by Lead Level
Under 5 ppb
10
No Data
2

All Cities in Greene County

Beavercreek Not detected A
Fairborn 2.70 ppb A
Xenia 1.80 ppb A
Bellbrook 3.50 ppb B
Yellow Springs 2.30 ppb B
Cedarville 3.40 ppb A
Jamestown 2.80 ppb B
Shawnee Hills 2.80 ppb B
Wright-Patterson AFB Not detected D
Wilberforce 3.00 ppb A
Spring Valley 1.80 ppb B
Bowersville 1.90 ppb B
Showing 12 cities
No active violations Active violations

About Greene County Drinking Water

Greene County is served by 11 water systems covering 12 communities. No community here has an open violation on record.

Of the communities reporting lead results, 10 recorded a detection, with a median of 2.75 ppb — 18% of the federal action level. 2 reported none detected, which means below the laboratory limit rather than an absence of lead.

2 of 12 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded no significant deficiencies.

Frequently Asked Questions

Is Greene County tap water safe to drink?▼
No community in Greene County has an open violation on record. 2 of 12 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Greene County?▼
Among communities with a detection the median is 2.75 ppb, 18% of the 15 ppb action level. 2 reported none detected and 0 reported no result.
How many water systems serve Greene County?▼
11 community water systems serve 12 communities here.
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