WaterVerge

Is Ash Fork, AZ Tap Water Safe to Drink?

Graded B, with 17 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 1 water system PWSID: AZ0413008
Overall Score
79.6 / 100
Violations
17 active
Last Updated
May 2026
Source
Groundwater
#119 of 292 in Arizona Top 52% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
79.6/100
waterverge.com
B 79.6/100

Ash Fork, AZ — Water Quality Report

Ash Fork's drinking water received a grade of B (79.6 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,250 residents using groundwater.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 89 violations on record, including 3 health-based violations. 17 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Ash Fork's water

Ash Fork ranks #119 out of 292 cities in Arizona for water quality, placing it mid-range in the state.

Ash Fork relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Ash Fork may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 7 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
79.6 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
29.6/45
C
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Ash Fork, AZ water safe to drink?

Concerns Identified

Ash Fork's drinking water has significant quality concerns based on EPA testing data. With a grade of B (79.6/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,250 residents using groundwater (wells).

17
Active Violations
0.0 ppb
Lead (90th %ile)
6 events
Disaster History

Recent water quality updates for Ash Fork

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Ash Fork's water quality assessment. Grade: B (79.6/100).

Violation
1 drinking water violation recorded

Contaminants: Chlorine.

Violation
1 drinking water violation recorded

Contaminants: Chlorine.

Violation
1 drinking water violation recorded

Contaminants: Chlorine.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3241). Hurricane event — may have impacted local water infrastructure.

Disaster
SEVERE STORMS, TORNADOES & FLOODING

Federal disaster declaration (FEMA DR-977). Flood event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Ash Fork's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Ash Fork's water system has 89 total violations on record, including 3 health-based violations. 17 remain unresolved. 7 violations were issued in the last 5 years.

MRTTOtherMCL
Most recent violations:
Mar 2025 Chlorine Resolved
Feb 2025 Chlorine Resolved
Jan 2025 Chlorine Resolved
Apr 2023 Groundwater Rule Open
Jul 2022 Consumer Confidence Rule Open

Flood & environmental risk

Yavapai County has experienced 6 federally declared disasters since 1978. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3241
SEVERE STORMS, TORNADOES & FLOODING
Flood FEMA DR-977
SEVERE STORMS & FLOODING
Flood FEMA DR-884

Where does Ash Fork's water come from?

Ash Fork's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,250 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Ash Fork residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Ash Fork's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Ash Fork's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

89
Total violations
3
Health-based
17
Active / unresolved
Mar 2025
Most recent violation
Compliance Record

Violations & advisories

89 Total
17 Active
3 Health-based
72 Resolved
2 SNC
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
36
Consumer Confidence Rule
13
Total Coliform Rule
11
Volatile Organic Chemicals
11
Inorganic Chemicals
7
Apr 2023 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Jul 2022 Active
Consumer Confidence Rule
Other Violation 0
Jul 2015 Active
Consumer Confidence Rule
Other Violation 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Aug 2012 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2012 Active
Consumer Confidence Rule
Other Violation 0
Jul 2011 Active
Consumer Confidence Rule
Other Violation 0
Jul 2010 Active
Consumer Confidence Rule
Other Violation 0
Jul 2009 Active
Consumer Confidence Rule
Other Violation 0
Jul 2008 Active
Consumer Confidence Rule
Other Violation 0
Oct 2006 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2006 Active
Consumer Confidence Rule
Other Violation 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Jul 2003 Active
Consumer Confidence Rule
Other Violation 0
Jul 2002 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Mar 2025 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2025
Feb 2025 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 2025
Jan 2025 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jan 2025
Showing 20 of 89 violations
Environmental Risk

Drought conditions

D2 — severe drought

Yavapai County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

3
Weeks at D2+ (current streak)
44.5%
Months in D2+ (last 30y)
3
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

6
Declared disasters
Sep 2005
Most recent
Flood
Most common type

Yavapai County has experienced 6 federally declared disasters since 1978. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3241
Jan 1993
SEVERE STORMS, TORNADOES & FLOODING
Flood FEMA #977
Dec 1990
SEVERE STORMS & FLOODING
Flood FEMA #884
Oct 1983
SEVERE STORMS & FLOODING
Flood FEMA #691
Feb 1980
SEVERE STORMS & FLOODING
Flood FEMA #614
Mar 1978
SEVERE STORMS & FLOODING
Flood FEMA #551

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 5.0 ppb from 2002 (5.0 ppb) to 2024 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
2,250
Water Systems
1
Water Source

Where Ash Fork's water comes from

Groundwater

Ash Fork's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by private ownership and serves approximately 2,250 people through 1 water system.

Infrastructure

Water systems serving Ash Fork

System Name PWSID Population Source
ASH FORK WATER SERVICE AZ0413008 2,250 GW
Regional Comparison

How Ash Fork compares

Full Arizona rankings →

Ash Fork's score of 79.6/100 is above the average of 42/100 among major Arizona cities. It outscores 10 of 10 nearby cities.

Ash Fork (this city)
79.6
Phoenix
37.5
Tucson
38.1
Mesa
40.6
Chandler
40.5
Gilbert
34.8
Arizona avg
42
City Profile

About Ash Fork, AZ

Wikipedia →

Ash Fork is a census-designated place in Yavapai County, Arizona, United States. Its population was 396 at the 2010 U.S. census, down from 457 in 2000.

Economic Profile
$79,861
Median Income
$143,078
Median Home Value
$1,091/mo
Median Rent
26.5%
Unemployment
Community
38.6
Median Age
78
People / sq mi
13.1%
College Educated
67.3%
Homeownership
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Frequently asked questions

Is Ash Fork, AZ tap water safe to drink?

Ash Fork's water quality earned a grade of B (79.6/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #119 out of 292 cities tested in Arizona.

What contaminants are in Ash Fork's water?

Lead was measured at 0.0 ppb (90th percentile). 89 violations are on record.

How is Ash Fork's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Ash Fork?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Ash Fork's water come from?

Ash Fork's water is sourced from Groundwater. The city has 1 water system serving approximately 2,250 residents.

What health violations has Ash Fork's water system had?

Ash Fork has 3 health-based violations on record. The most recent violation was recorded in March 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 17 violations remain unresolved.

Is Ash Fork's groundwater at risk of contamination?

Ash Fork uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 89 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Ash Fork's water compare to other cities?

Ash Fork ranks #119 out of 292 cities in Arizona (better than 59% of state cities) and #8198 out of 15744 cities nationally (48th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Ash Fork's small water system affect quality?

Ash Fork's system serves approximately 2,250 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 89 violations on record.