PlainEnviro

Lincoln, MT

Low Risk (26/100)

A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.

Environmental data for Lincoln in Montana · Population: 20,656

Lincoln, MT is tracked across three EPA datasets covering 1 Toxics Release Inventory (TRI) facility, 19 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 26/100 (Low Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.

Industrial disclosures inside the county total 2.1K lbs of reported toxic releases under EPCRA Section 313, while 8 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 49 and a peak AQI of 116 in 2024, with 51% of observed days rated "Good" (0–50).

All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.

Population
20,656
TRI Facilities
1
Water Systems
19
Superfund Sites
0
Total Releases
2.1K lbs

Air Quality History (2020–2024)

EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.

Year Good Moderate Unhealthy (SG) Max AQI
2024 185 (51%) 178 2 116
2023 151 (41%) 209 2 189
2022 184 (50%) 175 4 174
2021 125 (34%) 223 11 177
2020 175 (48%) 182 2 403
2024 Good Air Quality: 51% of days
Unhealthy days: 2
Median AQI: 49

Source: EPA Air Quality System (AQS) Annual AQI by County EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)

For real-time air quality readings and pollutant breakdowns in Montana, see the EPA's AirNow.gov.

Water Systems (19)

System Population Violations
LIBBY CITY OF 4,892 12
TROY CITY OF 2,100 0
EUREKA TOWN OF 1,995 2
INDIAN SPRINGS RANCH SUB 455 0
WILDERNESS PLATEAU WATER AND SEWER DIST 208 1
PINEWOOD VILLAGE 160 2
REXFORD TOWN OF 160 0
EMKAYAN VILLAGE CO WATER AND SEWER DIST 160 0
ANGEL ISLAND SUBDIVISION 150 0
SWAN LAKE ESTATES 115 0
MONTANA CHRISTIAN COLLEGE 105 0
HIGH COUNTRY PARK 76 1
BARNABY LAKE HOA 75 1
CARPENTER LAKE HOA 65 2
RIVERS EDGE MOBILE PARK LIBBY 60 4
POSTS TRAILER COURT 45 0
JOHNSONS MOBILE HOME PARK 35 0
CREEKSIDE MOTEL RV AND TRLR PK 35 0
CRYSTAL LAKE SUBDIVISION HOA 34 0

TRI Facilities (1)

# Facility Total Releases
1 US Cbp Roosville Port of Entry #MT0008 2.1K lbs

Cities in Lincoln (1)

Eureka
Pop: -
1 facilities · 4 water

Frequently Asked Questions

What is the environmental risk level in Lincoln, Montana? ▼
Lincoln, MT has an environmental risk score of 26/100 (Low Risk), based on 1 TRI facilities, 0 Superfund sites, and 19 water systems on record. 8 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Lincoln? ▼
No Superfund National Priorities List (NPL) sites are currently registered in Lincoln, MT in the EPA database.
How many toxic release facilities are in Lincoln? ▼
Lincoln, MT has 1 TRI-reporting facility on record with the EPA Toxic Release Inventory, with a combined total of 2.1K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Lincoln? ▼
In 2024, Lincoln, MT recorded a median AQI of 49 and a peak AQI of 116. 51% of monitored days had "Good" air quality (AQI 0–50). Source: EPA Air Quality System (AQS) Annual AQI by County.
Is the drinking water safe in Lincoln? ▼
Lincoln, MT has 19 EPA-regulated water systems. 8 systems have reported health-based violations (MCL exceedances). A past violation does not necessarily mean water is currently unsafe. For current water quality, contact your local water utility. Source: EPA SDWIS.
What environmental agencies cover Lincoln? ▼
Environmental compliance in Lincoln, Montana is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Montana state environmental agency. Facilities report to the EPA Toxic Release Inventory, water systems are regulated under the Safe Drinking Water Act, and contaminated sites are managed under the Superfund program. Contact your state environmental agency for local concerns.

What does this county environmental profile show?

This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.

Related Guides

Understanding EPA Data
How EPA collects and publishes environmental data
Environmental Justice
Who lives near polluters and environmental hazards
How to Check Environmental Quality
Step-by-step guide to checking your local environment

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

Related

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