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County 09021 County, 09

Water Systems
8
Population Served
13,612
Total Violations
500
46 health-based
PFAS Detected
1
of 1 tested

Violation Analysis

100.0%
Systems with Violations
62.5
Avg Violations per System
9.2%
Health-Based Violations

Water Source Types

GW
7 systems (88%)
SW
1 system (13%)

PFAS Contamination

1
Systems Tested
1
PFAS Detected
100.0%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

County 09021 09 water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (8)

Violation history is cumulative — many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
Ak-Chin Village 11,646 57 Detected
Walker River Paiute Tribe 662 334 —
Chui Chu 420 13 —
Apache Sky Casino 400 1 —
Ak-Chin Southern Dunes Golf Club 270 6 —
Ak-Chin Santa Cruz Commerce Center 94 10 —
Kohatk 80 17 —
Jackrabbit 40 62 —

Other Counties in 09

County 09013 County
23 systems · 114,768 served · 2,232 violations
County 09017 County
18 systems · 47,180 served · 4,330 violations
County 09073 County
10 systems · 41,233 served · 1,205 violations
County 09019 County
29 systems · 26,556 served · 2,067 violations
County 09031 County
23 systems · 19,530 served · 2,193 violations
County 09061 County
1 systems · 18,007 served · 10 violations

Drinking Water Guides

Is Your Tap Water Safe?

How to interpret water quality reports and know when to take action.
PFAS: What You Need to Know

Health risks, EPA standards, and how to reduce PFAS exposure.
Check Your Water System

Step-by-step guide to finding and understanding your local water data.

Related Environmental Data

PlainEnviro
EPA toxic releases and pollution sources near water systems
PlainHealth
Cross-portal: mortality and health outcome data by state
PlainHazard
Natural disaster data affecting water infrastructure
PlainClimate
Climate and weather patterns impacting water supply

Frequently Asked Questions

How many water violations are in County 09021 County? ▼
County 09021 County has 500 total drinking water violations across 8 water systems, of which 46 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from County 09021 County systems? ▼
Water systems in County 09021 County serve approximately 13,612 people through 8 public water systems.
Has PFAS been detected in County 09021 County water? ▼
Of 1 water systems tested for PFAS in County 09021 County, 1 had PFAS detected (100.0% detection rate).
What types of water sources supply County 09021 County? ▼
Water systems in County 09021 County use GW (7 systems), SW (1 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 9.2% of County 09021 County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Where does this water quality data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and UCMR5 PFAS monitoring program. SDWIS tracks violations for all public water systems regulated under the Safe Drinking Water Act.

Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial