WaterVerge

Is Beaver Dam, AZ Tap Water Safe to Drink?

Graded D, with 201 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 7 water systems PWSID: AZ0408006
Overall Score
47 / 100
Violations
201 active
Last Updated
May 2026
Source
Groundwater
#220 of 292 in Arizona Top 87% nationally
Public/Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
DGRADE
Water Quality Grade
47/100
waterverge.com
D 47/100

Beaver Dam, AZ — Water Quality Report

Beaver Dam's drinking water received a grade of D (47 out of 100), indicating poor water quality. The city's 7 water systems serve approximately 1,927 residents using groundwater.

Lead levels were measured at 1.6 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 704 violations on record, including 14 health-based violations. 201 remain unresolved.

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

What to know about Beaver Dam's water

Beaver Dam ranks #220 out of 292 cities in Arizona for water quality, placing it among the lowest-rated in the state.

Beaver Dam 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, Beaver Dam may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 55 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 1.6 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 Beaver Dam, AZ water safe to drink?

Concerns Identified

Beaver Dam'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 7 water systems serve approximately 1,927 residents using groundwater (wells).

201
Active Violations
1.6 ppb
Lead (90th %ile)
5 events
Disaster History

Recent water quality updates for Beaver Dam

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

Update
Water quality data updated

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

Violation
4 drinking water violations recorded

Contaminants: Public Notice, Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
2 drinking water violations recorded

Contaminants: LEAD AND COPPER RULE REVISIONS.

Disaster
HURRICANE KATRINA EVACUATION

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

Disaster
SEVERE STORMS & FLOODING

Federal disaster declaration (FEMA DR-691). Flood event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Beaver Dam's water supply.

Lead Within Limits
Detected: 1.6 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Beaver Dam's water system has 704 total violations on record, including 14 health-based violations. 201 remain unresolved. 55 violations were issued in the last 5 years.

OtherRPTMRTTMONMCL
Most recent violations:
Oct 2025 Public Notice Open
Oct 2025 Public Notice Open
Oct 2025 Consumer Confidence Rule Open
Oct 2025 Consumer Confidence Rule Open
Sep 2025 Public Notice Open

Flood & environmental risk

Mohave County has experienced 5 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. Local water sources include Virgin, Mesquite Canal Nr Mesquite.

HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3241
SEVERE STORMS & FLOODING
Flood FEMA DR-691
FLOODING
Flood FEMA DR-686

Where does Beaver Dam's water come from?

Beaver Dam's drinking water comes from groundwater (wells), supplied by 7 water systems serving approximately 1,927 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Virgin (river), Mesquite Canal Nr Mesquite (river).

What Beaver Dam residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Beaver Dam'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

Beaver Dam'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
1.6 ppb
EPA Action Level: 15 ppb · 11% of limit
Safe Level
Compliance Record

Violation summary

704
Total violations
14
Health-based
201
Active / unresolved
Oct 2025
Most recent violation
Compliance Record

Violations & advisories

704 Total
201 Active
14 Health-based
503 Resolved
Violations by category
Total Coliform Rule
167
Volatile Organic Chemicals
159
Consumer Confidence Rule
76
Revised Total Coliform Rule
74
Synthetic Organic Chemicals
62
Oct 2025 Active
Public Notice
Other Violation 0
Oct 2025 Active
Public Notice
Other Violation 0
Oct 2025 Active
Consumer Confidence Rule
Other Violation 0
Oct 2025 Active
Consumer Confidence Rule
Other Violation 0
Sep 2025 Active
Public Notice
Other Violation 0
Jul 2025 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Jul 2025 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Jan 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2024 Active
Public Notice
Other Violation 0
Dec 2024 Active
Public Notice
Other Violation 0
Oct 2024 Active
Public Notice
Other Violation 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2024 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Sep 2024 Active
Revised Total Coliform Rule
Treatment Technique
Health-Based Health 0
Aug 2024 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Jun 2024 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Showing 20 of 704 violations
Environmental Risk

Drought conditions

D2 — severe drought

Mohave 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.

1
Weeks at D2+ (current streak)
48.1%
Months in D2+ (last 30y)
1
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

5
Declared disasters
Sep 2005
Most recent
Flood
Most common type

Mohave County has experienced 5 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
Oct 1983
SEVERE STORMS & FLOODING
Flood FEMA #691
Jul 1983
FLOODING
Flood FEMA #686
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) 1.6 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 increased by 1.6 ppb from 2002 (0.0 ppb) to 2027 (1.6 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Public/Private
Population Served
1,927
Water Systems
7
Water Source

Where Beaver Dam's water comes from

Groundwater

Beaver Dam'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 public/private ownership and serves approximately 1,927 people through 7 water systems.

Local Hydrology

Water bodies near Beaver Dam

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

Virgin
river
Mesquite Canal Nr Mesquite
river
Infrastructure

Water systems serving Beaver Dam

System Name PWSID Population Source
BEAVER DAM WC SYSTEM 1 AZ0408006 1,048 GW
BIASI WATER COMPANY AZ0408138 284 GW
VIRGIN MOUNTAIN UTILITIES COMPANY AZ0408173 200 GW
SUN SHINERS MHP AZ0408080 136 GW
CHIEF SLEEP EASY TP AZ0408089 124 GW
VIRGIN MOUNTAIN ESTATES MHP AZ0408142 100 GW
BEAVER DAM FILLING STATION AZ0408057 35 GW
Regional Comparison

How Beaver Dam compares

Full Arizona rankings →

Beaver Dam'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.

Beaver Dam (this city)
47
Phoenix
37.5
Tucson
38.1
Mesa
40.6
Chandler
40.5
Gilbert
34.8
Arizona avg
42
City Profile

About Beaver Dam, AZ

Wikipedia →

Littlefield is an unincorporated community and census-designated place in Mohave County, Arizona, United States, that is located in the Arizona Strip region. As of the 2020 census, its population was 256, a decline from the figure of 308 tabulated in 2010. It lies just south of Interstate 15, next to the Virgin River, approximately 10 miles (16 km) northeast of Mesquite, Nevada.

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Frequently asked questions

Is Beaver Dam, AZ tap water safe to drink?

Beaver Dam's water quality earned a grade of D (47/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #220 out of 292 cities tested in Arizona.

What contaminants are in Beaver Dam's water?

Lead was measured at 1.6 ppb (90th percentile). 704 violations are on record.

How is Beaver Dam'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 Beaver Dam?

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

Where does Beaver Dam's water come from?

Beaver Dam's water is sourced from Groundwater. The city has 7 water systems serving approximately 1,927 residents.

What health violations has Beaver Dam's water system had?

Beaver Dam has 14 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. 201 violations remain unresolved.

Is Beaver Dam's groundwater at risk of contamination?

Beaver Dam 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 704 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 Beaver Dam's water compare to other cities?

Beaver Dam ranks #220 out of 292 cities in Arizona (better than 25% of state cities) and #13749 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.