States › West Virginia › Jefferson County

Jefferson County, WV Water Quality

Water quality data for 6 public water systems serving Jefferson County, West Virginia — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 6 water systems · 8 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

Jefferson County Earns a B

Jefferson County: 8 communities across 6 water systems. 100.0% have no open violations.

  • Median lead where detected: 2.30 ppb
  • 8 communities with a lead detection, 0 reporting none detected
  • 2 communities with PFAS above the federal limit
  • 1 with significant inspection deficiencies
  • 100.0% of communities have no open violations
2.3 ppb
Median Lead Level
County-wide, 90th percentile
6
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
  • Shannondale
    1.40 ppb
    No federal limits exceeded on record
    B
  • Middleway
    1.00 ppb
    2 significant inspection deficiencies
    B
  • Charles Town
    0.60 ppb
    7 health-based violations since 2015
    B
  • Shepherdstown
    1.70 ppb
    3 health-based violations since 2015
    B
  • Bolivar
    2.90 ppb
    3 health-based violations since 2015
    B
⚠ Needs Attention
County Lead Level — Median 2.3 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.3 ppb — 15.3% of the federal action level
Systems by Lead Level
Under 5 ppb
8

All Cities in Jefferson County

Ranson corporation 3.00 ppb D
Charles Town 0.60 ppb B
Shepherdstown 1.70 ppb B
Bolivar 2.90 ppb B
Shenandoah Junction 3.00 ppb D
Harpers Ferry 2.90 ppb B
Middleway 1.00 ppb B
Shannondale 1.40 ppb B
Showing 8 cities
No active violations Active violations

About Jefferson County Drinking Water

Jefferson County is served by 6 water systems covering 8 communities. No community here has an open violation on record.

Of the communities reporting lead results, 8 recorded a detection, with a median of 2.30 ppb — 15% of the federal action level. 0 reported none detected, which means below the laboratory limit rather than an absence of lead.

2 of 8 communities have PFAS above the limits EPA set in 2024, measured as a running annual average at each sampling point. State inspectors recorded significant deficiencies at 1 of them.

Frequently Asked Questions

Is Jefferson County tap water safe to drink?▼
No community in Jefferson County has an open violation on record. 2 of 8 have PFAS above the federal limit, which is the main open concern.
What is the lead level in Jefferson County?▼
Among communities with a detection the median is 2.30 ppb, 15% of the 15 ppb action level. 0 reported none detected and 0 reported no result.
How many water systems serve Jefferson County?▼
6 community water systems serve 8 communities here.
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