States › Oklahoma › Washita County

Washita County, OK Water Quality

Water quality data for 8 public water systems serving Washita County, Oklahoma — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 8 water systems · 10 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

Washita County Earns a B

Washita County: 10 communities across 8 water systems. 100.0% have no open violations.

  • Median lead where detected: 3.87 ppb
  • 5 communities with a lead detection, 5 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 4 with significant inspection deficiencies
  • 100.0% of communities have no open violations
3.87 ppb
Median Lead Level
County-wide, 90th percentile
8
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
  • Sentinel
    0.65 ppb
    No federal limits exceeded on record
    B
  • Bessie
    Not detected
    No federal limits exceeded on record
    B
  • Rocky
    Not detected
    No federal limits exceeded on record
    B
  • Burns Flat
    Not detected
    1 health-based violation since 2015
    B
  • Canute
    Not detected
    14 health-based violations since 2015
    B
⚠ Needs Attention
  • Foss
    Not detected
    Copper above the 1,300 ppb action level
    C
  • Dill City
    8.10 ppb
    20 health-based violations since 2015
    B
  • New Cordell
    3.87 ppb
    1 significant inspection deficiency
    B
  • Corn
    3.87 ppb
    1 significant inspection deficiency
    B
  • Colony
    3.87 ppb
    1 significant inspection deficiency
    B
County Lead Level — Median 3.87 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 3.87 ppb — 25.8% of the federal action level
Systems by Lead Level
Under 5 ppb
4
5 – 10 ppb
1
No Data
5

All Cities in Washita County

New Cordell 3.87 ppb B
Sentinel 0.65 ppb B
Corn 3.87 ppb B
Canute Not detected B
Burns Flat Not detected B
Bessie Not detected B
Dill City 8.10 ppb B
Rocky Not detected B
Colony 3.87 ppb B
Foss Not detected C
Showing 10 cities
No active violations Active violations

About Washita County Drinking Water

Washita County is served by 8 water systems covering 10 communities. No community here has an open violation on record.

Of the communities reporting lead results, 5 recorded a detection, with a median of 3.87 ppb — 26% of the federal action level. 5 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 4 of them.

Frequently Asked Questions

Is Washita County tap water safe to drink?▼
No community in Washita County has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Washita County?▼
Among communities with a detection the median is 3.87 ppb, 26% of the 15 ppb action level. 5 reported none detected and 0 reported no result.
How many water systems serve Washita County?▼
8 community water systems serve 10 communities here.
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