PlainWater
Counties → Arizona

Coconino County, Arizona

Water Systems
116
Population Served
180,537
Total Violations
13,681
769 health-based
PFAS Detected
4
of 8 tested

Violation Analysis

96.6%
Systems with Violations
117.9
Avg Violations per System
5.6%
Health-Based Violations

Water Source Types

GW
44 systems (38%)
SW
6 systems (5%)

PFAS Contamination

8
Systems Tested
4
PFAS Detected
50.0%
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

Coconino 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
Flagstaff City Of 76,960 1,061 Detected
Grand Canyon National Park 16,590 424 Clean
Arizona Water Co - Sedona 12,104 259 Detected
Doney Park Water 8,996 604 Clean
Arizona Water Co - Pinewood 8,089 48 Clean
Page City Of 7,420 173 Clean
Glen Canyon Nra Wahweap 4,439 403 Detected
Kachina Village Dwid 3,500 216 Clean
Williams City Of 3,145 314 -
Blue Ridge Dwid 1,920 98 -
Forest Lakes Water Improvement District 1,746 111 -
Utility Source LLC 1,710 113 -
Hydro Resources-Tusayan 1,710 306 -
Forest Highlands Water Company 1,668 83 -
Ponderosa Utility Corp 1,585 134 -
AZ State Parks Slide Rock 1,500 93 -
Bearizona 1,423 45 -
Fredonia Town Of 1,327 415 -
Cameron Trading Post 1,270 320 -
Adot Airport Grand Canyon 1,140 317 -
Adot Meteor Crater Rest Area 1,006 44 -
Adot Oak Creek Rim M/S - Overlook Vista 1,000 36 -
Wupatki National Monument 1,000 46 -
Usfs Asnf Woods Canyon - Aspen Camp Area 900 63 -
Gcnra Lees Ferry 890 138 -
Greenehaven Water Company 807 121 -
Meteor Crater Visitor Center 750 56 -
Sturgeon Cromer Elem School 750 208 -
Happy Jack RV Park 750 16 -
Walnut Canyon Natl Monument 700 24 -
Newton Water Well 665 176 -
Usfs Conf Pine Flat Campground 650 54 -
Young Life Lost Canyon Campground 600 33 -
Clints Well Gas and Go 500 69 -
Thriftway Store #281 Gray Mountain 450 70 -
Grand Canyon Junction Hydro 430 205 -
Grand Canyon Caverns 400 122 -
Hidden Hollow Mhc 400 103 -
Cs Mormon Lake Water Company 353 90 -
Mormon Lake Lodge 350 30 -
Camp Navajo 350 90 -
Cs Flagstaff Ranch Water Company 350 179 -
Cs Mormon Lake-Upper Village 324 40 -
Marble Canyon Lodge 300 194 -
Usfs Asnf Canyon Point Campground 300 20 -
Usfs Conf Cave Springs 280 30 -
Under Canvas Grand Canyon 275 0 -
Grand Canyon Drinking Water 260 73 -
Mustang River Grill 250 36 -
Mountain Dell Water Inc 250 123 -

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
Pinal County
94 systems · 505,241 served · 20,790 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

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Coconino County? ▼
Coconino County has 13,681 total drinking water violations across 116 water systems, of which 769 are health-based violations. 96.6% of systems have at least one violation.
How many people get water from Coconino County systems? ▼
Water systems in Coconino County serve approximately 180,537 people through 116 public water systems.
Has PFAS been detected in Coconino County water? ▼
Of 8 water systems tested for PFAS in Coconino County, 4 had PFAS detected (50.0% detection rate).
What types of water sources supply Coconino County? ▼
Water systems in Coconino County use GW (44 systems), SW (6 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. 5.6% of Coconino 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.