PlainEnviro

Billings Water Quality

Montana

Health Violations

According to EPA SDWIS, Billings, Montana is served by 39 community water systems covering about 140,019 people. The same extract lists 30 health-based violation records, most recently coded 1038 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.

39
Water Systems
140,019
Population Served
30
Health-Based Violation Records
4
Distinct Contaminant Codes

Drinking water in Billings, Montana is delivered through 39 EPA-regulated community water systems serving an estimated 140,019 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.

PlainEnviro's health-based SDWIS extract shows 30 violation records across the 39 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 4 distinct EPA contaminant codes: Nitrate-Nitrite, LEAD AND COPPER RULE REVISIONS, Groundwater Rule, Lead and Copper Rule. 15 TRI-reporting industrial facilities are also located within the city limits.

A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Montana drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.

Community Water Systems

System Name Pop. Served Violations Status
BILLINGS CITY OF 114,000 0 Clean
BILLINGS HEIGHTS CO WATER DIST OF 12,000 0 Clean
LOCKWOOD WATER AND SEWER DISTRICT 5,900 0 Clean
PIONEER WATER SERVICE 900 0 Clean
FISHER WATER SERVICE 750 0 Clean
CHERRY CREEK ESTATES LLC 600 0 Clean
SUNDANCE SUBDIVISION 378 0 Clean
STONE CREEK SUBDIVISION 378 0 Clean
HIDDEN LAKE YELLOWSTONE COUNTY W AND S D 350 0 Clean
EMERALD VIEW PARK 320 0 Clean
SHILOH ROAD DEVELOPMENT 315 0 Clean
MOUNTAIN MEADOWS ESTATES LLP 300 0 Clean
MOBILE CITY HOME PARK NO 2 300 0 Clean
PRECISION WATER 250 0 Clean
GRANITE PARK WATER ASSOCIATION 250 4 Health
ORLAND ESTATES MOBILE H.P. 244 1 Health
YELLOWSTONE BOYS AND GIRLS RANCH 240 0 Clean
WELLS GARDEN ESTATES 240 0 Clean
SKYCREST ESTATES SUBDIVISION 235 0 Clean
CRYSTAL SPRINGS WATER SYSTEM 225 15 Health
THE NINES SUBDIVISION 220 0 Clean
OAK RIDGE ESTATES 200 0 Clean
STILL RIVER ESTATES SUBDIVISION 188 2 Health
C & C COMMUNITY INC 145 0 Clean
GOLDEN EAGLE WATER USERS ASSN 125 1 Health
MOBILE CITY HOME PARK NO 1 100 0 Clean
ALDINGER ACRES SUBDIVISION 100 0 Clean
ERICS EMERGENCY WATER SERVICE 100 0 Clean
PEKS MOBILE HOME COURT 95 0 Clean
WESTANA MOBILE MANOR HAMILTON 90 0 Clean
BLACK ROCK ESTATES SUBDIVISION 75 0 Clean
MIDWAY TOWNHOMES WUA 75 0 Clean
DUCK CREEK MOBILE HOME PARK 70 7 Health
BLUE GRASS WATER USERS ASSOCIATION 60 0 Clean
DOUBLE DIAMOND SUBDIVISION ARBOR HILLS 50 0 Clean
SPRUCE PARK MOBILE VILLAGE 48 0 Clean
MOBILE CITY 3 40 0 Clean
SARTORIE LEGACY HOMES 35 0 Clean
SILVER CREEK CONDOMINIUMS IN YELLOWSTONE 28 0 Clean

Does this city have health-based water violations?

These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.

Water system Contaminant Begin Date
DUCK CREEK MOBILE HOME PARK Nitrate-Nitrite 2025-07-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2025-01-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2025-01-01
ORLAND ESTATES MOBILE H.P. LEAD AND COPPER RULE REVISIONS 2024-10-17
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2024-10-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2024-10-01
DUCK CREEK MOBILE HOME PARK Nitrate-Nitrite 2024-10-01
DUCK CREEK MOBILE HOME PARK Nitrate-Nitrite 2024-10-01
DUCK CREEK MOBILE HOME PARK Nitrate-Nitrite 2024-10-01
DUCK CREEK MOBILE HOME PARK Nitrate-Nitrite 2024-07-01
DUCK CREEK MOBILE HOME PARK Nitrate-Nitrite 2024-07-01
DUCK CREEK MOBILE HOME PARK Nitrate-Nitrite 2024-07-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2024-04-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2024-04-01
GRANITE PARK WATER ASSOCIATION Nitrate-Nitrite 2024-01-01
GRANITE PARK WATER ASSOCIATION Nitrate-Nitrite 2024-01-01
GRANITE PARK WATER ASSOCIATION Nitrate-Nitrite 2024-01-01
GRANITE PARK WATER ASSOCIATION Nitrate-Nitrite 2024-01-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2024-01-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2024-01-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2023-10-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2023-10-01
STILL RIVER ESTATES SUBDIVISION Nitrate-Nitrite 2023-01-01
STILL RIVER ESTATES SUBDIVISION Nitrate-Nitrite 2023-01-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2020-01-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2019-04-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2019-01-01
GOLDEN EAGLE WATER USERS ASSN Groundwater Rule 2018-12-01
CRYSTAL SPRINGS WATER SYSTEM Nitrate-Nitrite 2018-10-01
CRYSTAL SPRINGS WATER SYSTEM Lead and Copper Rule 2009-03-21

What are Billings's health-based records for?

Billings's health-based violation records carry 4 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.

Contaminant Records Systems
Nitrate-Nitrite 27 4
Groundwater Rule 1 1
Lead and Copper Rule 1 1
Lead and Copper Rule Revisions 1 1

TRI Facilities in Billings

Facility Total Releases
Par Montana Billings Refinery 881.7K lbs
Western Sugar COOPERATIVE.130130 582.2K lbs
Jupiter Sulphur LLC 539.8K lbs
Phillips 66 Co Billings Refinery 465.0K lbs
Montana Sulphur & Chemical Co 75.6K lbs
Brenntag Pacific Inc Mossmain Ln 20.0K lbs
Loveland Products Inc-Billings (formerly Transbas) 3.2K lbs
Jtl Group Billings (dba - Knife River Billings) 1.9K lbs
Knife River Billings East Site 750 lbs
Western Emulsions Inc Billings Plant 8 lbs

Frequently Asked Questions

What does EPA SDWIS list for drinking water in Billings, Montana? ▼
Billings is listed with 39 EPA-regulated water systems covering approximately 140,019 people. 30 health-based violation records appear in the extract. A past registry row is not a current drinkability verdict; contact the local utility for current status.
How many water violations does Billings have in this EPA extract? ▼
Billings water systems have 30 health-based violation records in PlainEnviro's EPA SDWIS extract. This extract is filtered to EPA health-based records and does not include monitoring or reporting violations.
What contaminants were found in Billings water? ▼
Health-based records for Billings water systems carry the following EPA contaminant codes: Nitrate-Nitrite, LEAD AND COPPER RULE REVISIONS, Groundwater Rule, Lead and Copper Rule. This source edition does not include authoritative contaminant names. Source: EPA SDWIS.
How many water systems serve Billings? ▼
39 EPA-regulated community water systems serve Billings, Montana, collectively covering approximately 140,019 people. Data is from the EPA Safe Drinking Water Information System (SDWIS).
Where does Billings get its drinking water? ▼
Billings's water supply comes from 39 EPA-regulated community water systems. Source type data is not available for all systems. For detailed supply information, contact your local water utility. Source: EPA SDWIS.
Are there pollution sources near Billings? ▼
Yes, 15 EPA Toxic Release Inventory (TRI) facilities are registered in Billings, Montana, reporting a combined 2.6M lbs of toxic chemical releases. TRI data reflects self-reported emissions; it does not measure exposure or health effects. Source: EPA TRI.

How does Billings compare in Montana?

Of the 217 Montana places with at least one community water system on file, Billings ranks #4 by number of systems (39).

Either side of it: Kalispell (71), Helena (40), Bozeman (28), Columbia Falls (27)

About This Data

Figures here are the current EPA SDWIS extract joined to the 39 community water systems whose service area lists Billings, ranked against the 217 Montana places with at least one system on file. Data current as of 2026-08-25.

Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.

A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.

TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro