WaterVerge

Is Whitehall, MT Tap Water Safe to Drink?

Graded D+, with 9 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: MT0000359
Overall Score
52 / 100
Violations
9 active
Last Updated
May 2026
Source
Groundwater
#75 of 115 in Montana Top 82% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
D+GRADE
Water Quality Grade
52/100
waterverge.com
D+ 52/100

Whitehall, MT — Water Quality Report

Whitehall's drinking water received a grade of D+ (52 out of 100), indicating poor water quality. The city's 1 water system serves approximately 1,500 residents using groundwater.

Lead levels were measured at 2.0 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 230 violations on record, including 64 health-based violations. 9 remain unresolved.

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

What to know about Whitehall's water

Whitehall ranks #75 out of 115 cities in Montana for water quality, placing it below average in the state.

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

The system has seen 28 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
52 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 2.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
10/10
A
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Whitehall, MT water safe to drink?

Concerns Identified

Whitehall's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (52/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,500 residents using groundwater (wells).

9
Active Violations
2.0 ppb
Lead (90th %ile)
4 events
Disaster History

Recent water quality updates for Whitehall

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Whitehall's water quality assessment. Grade: D+ (52/100).

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Combined Uranium.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Combined Uranium.

Violation
2 drinking water violations recorded

2 health-based. Contaminants: Combined Uranium, Gross Alpha, Excl. Radon and U.

Disaster
ICE JAMS AND FLOODING

Federal disaster declaration (FEMA DR-4172). Flood event — may have impacted local water infrastructure.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3253). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Within Limits
Detected: 2.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Whitehall's water system has 230 total violations on record, including 64 health-based violations. 9 remain unresolved. 28 violations were issued in the last 5 years.

MCLMRMONOther
Most recent violations:
Jan 2026 Combined Uranium Resolved
Oct 2025 Combined Uranium Resolved
Jul 2025 Combined Uranium Resolved
Jul 2025 Gross Alpha, Excl. Radon and U Resolved
Apr 2025 Combined Uranium Resolved

Flood & environmental risk

Jefferson County has experienced 4 federally declared disasters since 1975. 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 Jefferson River At Parsons Bdg Nr Silver Star.

ICE JAMS AND FLOODING
Flood FEMA DR-4172
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3253
SEVERE STORMS & FLOODING
Flood FEMA DR-640

Where does Whitehall's water come from?

Whitehall's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,500 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Jefferson River At Parsons Bdg Nr Silver Star (river).

What Whitehall residents can do

Install a water filter

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

Whitehall'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
2.0 ppb
EPA Action Level: 15 ppb · 13% of limit
Safe Level
Compliance Record

Violation summary

230
Total violations
64
Health-based
9
Active / unresolved
Jan 2026
Most recent violation
Compliance Record

Violations & advisories

230 Total
9 Active
64 Health-based
221 Resolved
Violations by category
Synthetic Organic Chemicals
76
Radionuclides and Revised Rad Rule
62
Volatile Organic Chemicals
42
Inorganic Chemicals
26
Total Coliform Rule
8
Dec 2024 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Nov 2024 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2015 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2015 Active
Consumer Confidence Rule
Other Violation 0
Sep 2014 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Oct 2012 Active
Consumer Confidence Rule
Other Violation 0
Jul 2012 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jan 2026 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Mar 2026
Oct 2025 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Dec 2025
Jul 2025 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Sep 2025
Jul 2025 Resolved
Gross Alpha, Excl. Radon and U
Max Contaminant Level
Health-Based Health Resolved Sep 2025
Apr 2025 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Jun 2025
Jan 2025 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Mar 2025
Oct 2024 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Dec 2024
Jul 2024 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Sep 2024
Apr 2024 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Jun 2024
Jan 2024 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Mar 2024
Oct 2023 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Dec 2023
Showing 20 of 230 violations
Industrial pollution

Top industrial polluters within 10 miles of Whitehall

Industrial polluters nearby

Reported releases to surface water by facilities near Whitehall, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
BARRICK GOLD CORP-GOLDEN SUNLIGHT MINE
Other · BARRICK GOLD CORP
WHITEHALL, MT59759
4.5 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D2 — severe drought

Jefferson 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.

5
Weeks at D2+ (current streak)
25.8%
Months in D2+ (last 30y)
5
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

4
Declared disasters
Apr 2014
Most recent
Flood
Most common type

Jefferson County has experienced 4 federally declared disasters since 1975. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Apr 2014
ICE JAMS AND FLOODING
Flood FEMA #4172
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3253
May 1981
SEVERE STORMS & FLOODING
Flood FEMA #640
Jun 1975
RAINS, SHOWMELT, STORMS & FLOODING
Flood FEMA #472

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.0 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 1993 (5.0 ppb) to 2023 (2.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
1,500
Water Systems
1
Water Source

Where Whitehall's water comes from

Groundwater

Whitehall'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 local government ownership and serves approximately 1,500 people through 1 water system.

Local Hydrology

Water bodies near Whitehall

Whitehall is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Jefferson River At Parsons Bdg Nr Silver Star
river
Infrastructure

Water systems serving Whitehall

System Name PWSID Population Source
WHITEHALL TOWN OF MT0000359 1,500 GW
Regional Comparison

How Whitehall compares

Full Montana rankings →

Whitehall's score of 52/100 is above the average of 45/100 among major Montana cities. It outscores 9 of 10 nearby cities.

Whitehall (this city)
52
Billings
39.6
Missoula
42.6
Bozeman
43.4
Helena
39.1
Montana avg
45
City Profile

About Whitehall, MT

Economic Profile
$41,477
Median Income
$174,613
Median Home Value
$813/mo
Median Rent
9.6%
Unemployment
Community
49.7
Median Age
618
People / sq mi
18.5%
College Educated
65.4%
Homeownership
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Frequently asked questions

Is Whitehall, MT tap water safe to drink?

Whitehall's water quality earned a grade of D+ (52/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #75 out of 115 cities tested in Montana.

What contaminants are in Whitehall's water?

Lead was measured at 2.0 ppb (90th percentile). 230 violations are on record.

How is Whitehall'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 Whitehall?

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

Where does Whitehall's water come from?

Whitehall's water is sourced from Groundwater. The city has 1 water system serving approximately 1,500 residents.

What health violations has Whitehall's water system had?

Whitehall has 64 health-based violations on record. The most recent violation was recorded in January 2026. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 9 violations remain unresolved.

Is Whitehall's groundwater at risk of contamination?

Whitehall 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 230 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 Whitehall's water compare to other cities?

Whitehall ranks #75 out of 115 cities in Montana (better than 35% of state cities) and #12819 out of 15744 cities nationally (19th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Whitehall's small water system affect quality?

Whitehall's system serves approximately 1,500 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 230 violations on record.