States › Arizona › Pinal County

Pinal County, AZ Water Quality

Water quality data for 21 public water systems serving Pinal County, Arizona — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 21 water systems · 28 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

Pinal County Earns a B

Pinal County: 28 communities across 21 water systems. 82.1% have no open violations.

  • Median lead where detected: 1.45 ppb
  • 8 communities with a lead detection, 20 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 13 with significant inspection deficiencies
  • 82.1% of communities have no open violations
1.45 ppb
Median Lead Level
County-wide, 90th percentile
21
Water Systems
Active CWS & NTNCWS
82%
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
  • Apache Junction
    Not detected
    No federal limits exceeded on record
    A
  • Gold Canyon
    Not detected
    No federal limits exceeded on record
    A
  • Saddlebrooke
    Not detected
    No federal limits exceeded on record
    A
  • Oracle
    Not detected
    No federal limits exceeded on record
    A
  • Superior
    Not detected
    No federal limits exceeded on record
    A
⚠ Needs Attention
County Lead Level — Median 1.45 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.45 ppb — 9.7% of the federal action level
Systems by Lead Level
Under 5 ppb
6
5 – 10 ppb
1
10 – 15 ppb
1
No Data
20

All Cities in Pinal County

San Tan Valley Not detected A
Maricopa Not detected A
Casa Grande Not detected A
Apache Junction Not detected A
Coolidge Not detected A
Florence Not detected A
Gold Canyon Not detected A
Saddlebrooke Not detected A
Eloy 1.80 ppb B
Arizona City Not detected A
San Manuel Not detected A
Oracle Not detected A
Sacaton 1.30 ppb D
Red Rock Not detected B
Superior Not detected A
Kearny 6.30 ppb C
Mammoth Not detected C
Queen Valley Not detected B
Cactus Forest Not detected B
Casa Blanca 1.60 ppb D
Stanfield Not detected A
Picacho Not detected C
Dudleyville 0.34 ppb B
Stotonic Village 0.50 ppb D
Lower Santan Village 0.50 ppb D
Ak-Chin Village Not detected A
Goodyear Village 10.00 ppb B
Blackwater Not detected A
Showing 28 cities
No active violations Active violations

About Pinal County Drinking Water

Pinal County is served by 21 water systems covering 28 communities. 82% have no open violations.

Of the communities reporting lead results, 8 recorded a detection, with a median of 1.45 ppb — 10% of the federal action level. 20 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 13 of them.

Frequently Asked Questions

Is Pinal County tap water safe to drink?▼
82% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in Pinal County?▼
Among communities with a detection the median is 1.45 ppb, 10% of the 15 ppb action level. 20 reported none detected and 0 reported no result.
How many water systems serve Pinal County?▼
21 community water systems serve 28 communities here.
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