PlainWater
Counties → Arizona

Pinal County, Arizona

Water Systems
94
Population Served
505,241
Total Violations
20,790
2,576 health-based
PFAS Detected
16
of 16 tested

Violation Analysis

98.9%
Systems with Violations
221.2
Avg Violations per System
12.4%
Health-Based Violations

Water Source Types

GW
49 systems (52%)
SW
1 system (1%)

PFAS Contamination

16
Systems Tested
16
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

Pinal Arizona water systems by violation status, EPA SDWIS records.

No violations on record (1) One or more violations (49)

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
Arizona Water Co - Pinal Valley 134,432 590 Detected
Epcor - San Tan 87,435 367 Clean
Gw Santa Cruz Water Co 84,000 256 Clean
Arizona Water Co - Apache Junction 62,055 88 Clean
Lago del Oro Water Company 18,132 777 Detected
Florence Water Company 15,900 272 Detected
Apache Junction Water District 15,610 694 Clean
Arizona Water Co - Oracle 10,585 18 Clean
Epcor - San Tan Anthem 10,362 55 Detected
Cca - Eloy Complex 8,852 196 Clean
Eloy City Of 7,903 313 Clean
Arizona Water Co - San Manuel 4,748 38 Clean
Arizona Water Co - Superior 4,393 158 Clean
Adoc Eyman Unit 3,969 865 Clean
Gw Santa Cruz Water Co - Red Rock 3,813 32 -
Goodman Water Company 2,656 53 -
Picacho Water Company 2,440 70 -
Thunderbird Farms Dwid 2,231 484 -
Kearny Town Of 1,950 158 -
Arizona Water Co - Tierra Grande 1,796 23 -
Queen Valley Dwid 1,200 182 -
Mammoth Town Of 1,181 153 -
Gw Santa Cruz Water - Maricopa SW 1,170 2 -
Copper Mountain Ranch Cfd 1,071 370 Clean
Adoc Florence Asp 1,001 699 Clean
Awc - Casa Grande West Water Company 943 391 -
Maricopa Consolidated Dwid 928 141 -
Pinal County Justice Complex 820 19 -
Arizona Water Co - Stanfield 639 88 -
Tonto Basin Water - Cactus Forest 613 84 -
Sun Valley Farms Unit VI 600 268 -
Desert Gardens RV Resort Co-Op, Inc 532 110 -
Papago Butte Dwid 530 629 -
Town of Florence - Rodeo Well 500 0 -
Silver Bell Army Heliport 500 144 -
Arizona Training Program 470 812 -
Maricopa Mountain Dwid 1 450 476 -
Goldfield Ghost Town 450 11 -
Park Water Company Inc 416 177 -
Valle Escondido 405 105 -
Marana Aerospace Solutions 400 198 -
Picacho Peak RV Resort 400 53 -
Silverbell Irrigation & Drainage Dist 375 266 -
Skyline Resort RV Park 375 221 -
Picacho Dwid 340 471 -
Jo Combs Elementary School 325 205 -
Resolution Copper Company 300 138 -
Villa Grande Dwid 283 459 -
Sunland Water Company 227 149 -
Arizonian RV Resort 225 122 -

Other Counties in Arizona

Maricopa County
215 systems · 4,392,896 served · 30,745 violations
Pima County
195 systems · 1,138,545 served · 30,465 violations
Mohave County
119 systems · 231,271 served · 20,586 violations
Yavapai County
238 systems · 223,192 served · 25,793 violations
Yuma County
51 systems · 217,720 served · 16,217 violations
Coconino County
116 systems · 180,537 served · 13,681 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Pinal County? ▼
Pinal County has 20,790 total drinking water violations across 94 water systems, of which 2,576 are health-based violations. 98.9% of systems have at least one violation.
How many people get water from Pinal County systems? ▼
Water systems in Pinal County serve approximately 505,241 people through 94 public water systems.
Has PFAS been detected in Pinal County water? ▼
Of 16 water systems tested for PFAS in Pinal County, 16 had PFAS detected (100.0% detection rate).
What types of water sources supply Pinal County? ▼
Water systems in Pinal County use GW (49 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. 12.4% of Pinal County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.