WaterVerge

Is White Mountain Lakes, AZ Tap Water Safe to Drink?

Graded D, with 105 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: AZ0409034
Overall Score
47 / 100
Violations
105 active
Last Updated
May 2026
Source
Groundwater
#219 of 292 in Arizona Top 87% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
DGRADE
Water Quality Grade
47/100
waterverge.com
D 47/100

White Mountain Lakes, AZ — Water Quality Report

White Mountain Lakes's drinking water received a grade of D (47 out of 100), indicating poor water quality. The city's 1 water system serves approximately 1,997 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 285 violations on record, including 7 health-based violations. 105 remain unresolved.

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

What to know about White Mountain Lakes's water

White Mountain Lakes ranks #219 out of 292 cities in Arizona for water quality, placing it below average in the state.

White Mountain Lakes 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, White Mountain Lakes may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 46 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
47 out of 100 Grade D
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
0/45
F
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
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is White Mountain Lakes, AZ water safe to drink?

Concerns Identified

White Mountain Lakes's drinking water has significant quality concerns based on EPA testing data. With a grade of D (47/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,997 residents using groundwater (wells).

105
Active Violations
0.0 ppb
Lead (90th %ile)
8 events
Disaster History

Recent water quality updates for White Mountain Lakes

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into White Mountain Lakes's water quality assessment. Grade: D (47/100).

Violation
1 drinking water violation recorded

Contaminants: Chlorine.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Disaster
SEVERE STORMS AND FLOODING

Federal disaster declaration (FEMA DR-4620). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE KATRINA EVACUATION

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

Key contaminant findings

Based on the most recent EPA sampling data for White Mountain Lakes's water supply.

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

Well within EPA limits.

Violation history

White Mountain Lakes's water system has 285 total violations on record, including 7 health-based violations. 105 remain unresolved. 46 violations were issued in the last 5 years.

MRMONOtherTTRPTMCL
Most recent violations:
Oct 2025 Chlorine Resolved
Jul 2023 Lead and Copper Rule Open
Apr 2023 Revised Total Coliform Rule Resolved
Mar 2023 Revised Total Coliform Rule Resolved
Feb 2023 Public Notice Open

Flood & environmental risk

Navajo County has experienced 8 federally declared disasters since 1970. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Show Low Creek, North Fork White River.

SEVERE STORMS AND FLOODING
Flood FEMA DR-4620
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3241
SEVERE STORMS, TORNADOES & FLOODING
Flood FEMA DR-977

Where does White Mountain Lakes's water come from?

White Mountain Lakes's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,997 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Show Low Creek (river), North Fork White River (river).

What White Mountain Lakes residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in White Mountain Lakes'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

White Mountain Lakes'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

285
Total violations
7
Health-based
105
Active / unresolved
Oct 2025
Most recent violation
Compliance Record

Violations & advisories

285 Total
105 Active
7 Health-based
180 Resolved
Violations by category
Total Coliform Rule
103
Revised Total Coliform Rule
66
Consumer Confidence Rule
31
Synthetic Organic Chemicals
27
Nitrate Rule
25
Jul 2023 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Feb 2023 Active
Public Notice
Other Violation 0
Jan 2023 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2022 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Dec 2022 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Nov 2022 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Nov 2022 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2022 Active
Consumer Confidence Rule
Other Violation 0
Oct 2022 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Sep 2022 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Aug 2022 Active
Public Notice
Other Violation 0
Jul 2022 Active
Public Notice
Other Violation 0
Jul 2022 Active
Consumer Confidence Rule
Other Violation 0
Jul 2022 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2022 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jun 2022 Active
Revised Total Coliform Rule
Reporting
Reporting 0
May 2022 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Apr 2022 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Mar 2022 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jan 2022 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Showing 20 of 285 violations
Environmental Risk

Drought conditions

D2 — severe drought

Navajo 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.

14
Weeks at D2+ (current streak)
56.7%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

8
Declared disasters
Sep 2021
Most recent
Flood
Most common type

Navajo County has experienced 8 federally declared disasters since 1970. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2021
SEVERE STORMS AND FLOODING
Flood FEMA #4620
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3241
Jan 1993
SEVERE STORMS, TORNADOES & FLOODING
Flood FEMA #977
Oct 1983
SEVERE STORMS & FLOODING
Flood FEMA #691
Feb 1980
SEVERE STORMS & FLOODING
Flood FEMA #614
Dec 1978
SEVERE STORMS & FLOODING
Flood FEMA #570

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 3.0 ppb from 2010 (3.0 ppb) to 2025 (0.0 ppb).
Contaminant Rankings

See how White Mountain Lakes compares by contaminant

Explore where White Mountain Lakes ranks among all Arizona cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
1,997
Water Systems
1
Water Source

Where White Mountain Lakes's water comes from

Groundwater

White Mountain Lakes'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 1,997 people through 1 water system.

Local Hydrology

Water bodies near White Mountain Lakes

White Mountain Lakes is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Show Low Creek
river
North Fork White River
river
Infrastructure

Water systems serving White Mountain Lakes

System Name PWSID Population Source
VOYAGER AT WHITE MOUNTAIN LAKES WC AZ0409034 1,997 GW
Regional Comparison

How White Mountain Lakes compares

Full Arizona rankings →

White Mountain Lakes's score of 47/100 is on par with the average of 42/100 among major Arizona cities. It outscores 9 of 10 nearby cities.

White Mountain Lakes (this city)
47
Phoenix
37.5
Tucson
38.1
Mesa
40.6
Chandler
40.5
Gilbert
34.8
Arizona avg
42
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Frequently asked questions

Is White Mountain Lakes, AZ tap water safe to drink?

White Mountain Lakes's water quality earned a grade of D (47/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #219 out of 292 cities tested in Arizona.

What contaminants are in White Mountain Lakes's water?

Lead was measured at 0.0 ppb (90th percentile). 285 violations are on record.

How is White Mountain Lakes'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 White Mountain Lakes?

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

Where does White Mountain Lakes's water come from?

White Mountain Lakes's water is sourced from Groundwater. The city has 1 water system serving approximately 1,997 residents.

What health violations has White Mountain Lakes's water system had?

White Mountain Lakes has 7 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 105 violations remain unresolved.

Is White Mountain Lakes's groundwater at risk of contamination?

White Mountain Lakes 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 285 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 White Mountain Lakes's water compare to other cities?

White Mountain Lakes ranks #219 out of 292 cities in Arizona (better than 25% of state cities) and #13746 out of 15744 cities nationally (13th percentile). The grade of D reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does White Mountain Lakes's small water system affect quality?

White Mountain Lakes's system serves approximately 1,997 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 285 violations on record.