States › Ohio › Mahoning County

Mahoning County, OH Water Quality

Water quality data for 5 public water systems serving Mahoning County, Ohio — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 5 water systems · 16 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Mahoning County Earns a B

Mahoning County: 16 communities across 5 water systems. 100.0% have no open violations.

  • Median lead where detected: 1.90 ppb
  • 1 communities with a lead detection, 15 reporting none detected
  • 1 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 100.0% of communities have no open violations
1.9 ppb
Median Lead Level
County-wide, 90th percentile
5
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
  • Struthers
    Not detected
    Copper above the 1,300 ppb action level
    A
  • Campbell
    Not detected
    Copper above the 1,300 ppb action level
    A
  • Poland
    Not detected
    Copper above the 1,300 ppb action level
    A
  • Woodworth
    Not detected
    Copper above the 1,300 ppb action level
    A
  • New Middletown
    Not detected
    Copper above the 1,300 ppb action level
    A
⚠ Needs Attention
  • Canfield
    Not detected
    PFAS above the limit at 1 of 1 sampling points
    D
  • East Alliance
    1.90 ppb
    Copper above the 1,300 ppb action level
    C
  • Youngstown
    Not detected
    Copper above the 1,300 ppb action level
    B
  • Austintown
    Not detected
    Copper above the 1,300 ppb action level
    B
  • Sebring
    Not detected
    7 health-based violations since 2015
    B
County Lead Level — Median 1.9 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.9 ppb — 12.7% of the federal action level
Systems by Lead Level
Under 5 ppb
1
No Data
15

All Cities in Mahoning County

Youngstown Not detected B
Austintown Not detected B
Struthers Not detected A
Campbell Not detected A
Canfield Not detected D
Sebring Not detected B
Poland Not detected A
Woodworth Not detected A
New Middletown Not detected A
North Lima Not detected A
Lowellville Not detected A
Beloit Not detected B
New Springfield Not detected A
Petersburg Not detected A
East Alliance 1.90 ppb C
Maple Ridge Not detected B
Showing 16 cities
No active violations Active violations

About Mahoning County Drinking Water

Mahoning County is served by 5 water systems covering 16 communities. No community here has an open violation on record.

Of the communities reporting lead results, 1 recorded a detection, with a median of 1.90 ppb — 13% of the federal action level. 15 reported none detected, which means below the laboratory limit rather than an absence of lead.

1 of 16 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 Mahoning County tap water safe to drink?▼
No community in Mahoning County has an open violation on record. 1 of 16 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Mahoning County?▼
Among communities with a detection the median is 1.90 ppb, 13% of the 15 ppb action level. 15 reported none detected and 0 reported no result.
How many water systems serve Mahoning County?▼
5 community water systems serve 16 communities here.
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