States › Ohio › Lorain County

Lorain County, OH Water Quality

Water quality data for 12 public water systems serving Lorain County, Ohio — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 12 water systems · 18 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

Lorain County Earns a B

Lorain County: 18 communities across 12 water systems. 100.0% have no open violations.

  • Median lead where detected: 2.15 ppb
  • 4 communities with a lead detection, 14 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 3 with significant inspection deficiencies
  • 100.0% of communities have no open violations
2.15 ppb
Median Lead Level
County-wide, 90th percentile
12
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
  • Sheffield
    Not detected
    No federal limits exceeded on record
    B
  • South Amherst
    1.56 ppb
    No federal limits exceeded on record
    B
  • Elyria
    Not detected
    1 health-based violation since 2015
    A
  • Vermilion
    Not detected
    1 health-based violation since 2015
    A
  • Lorain
    Not detected
    Copper above the 1,300 ppb action level
    A
⚠ Needs Attention
  • LaGrange
    Not detected
    Copper above the 1,300 ppb action level
    C
  • Sheffield Lake
    1.90 ppb
    Copper above the 1,300 ppb action level
    B
  • Wellington
    2.40 ppb
    1 significant inspection deficiency
    B
  • Lorain
    Not detected
    Copper above the 1,300 ppb action level
    A
  • Avon Lake
    Not detected
    Copper above the 1,300 ppb action level
    A
County Lead Level — Median 2.15 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.15 ppb — 14.3% of the federal action level
Systems by Lead Level
Under 5 ppb
4
No Data
14

All Cities in Lorain County

Lorain Not detected A
Elyria Not detected A
Avon Lake Not detected A
North Ridgeville Not detected A
Amherst 2.50 ppb A
Avon Not detected A
Vermilion Not detected A
Sheffield Lake 1.90 ppb B
Grafton Not detected A
Oberlin Not detected A
Wellington 2.40 ppb B
Sheffield Not detected B
LaGrange Not detected C
South Amherst 1.56 ppb B
Eaton Estates Not detected A
Pheasant Run Not detected A
Kipton Not detected A
Rochester Not detected A
Showing 18 cities
No active violations Active violations

About Lorain County Drinking Water

Lorain County is served by 12 water systems covering 18 communities. No community here has an open violation on record.

Of the communities reporting lead results, 4 recorded a detection, with a median of 2.15 ppb — 14% of the federal action level. 14 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded significant deficiencies at 3 of them.

Frequently Asked Questions

Is Lorain County tap water safe to drink?▼
No community in Lorain County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Lorain County?▼
Among communities with a detection the median is 2.15 ppb, 14% of the 15 ppb action level. 14 reported none detected and 0 reported no result.
How many water systems serve Lorain County?▼
12 community water systems serve 18 communities here.
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