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Marquette, MI

Moderate Risk (44/100)

Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.

Environmental data for Marquette in Michigan · Population: 66,430

TRI sites such as Eagle Mine Llc-Humboldt Mill; Eagle Mine; Presque Isle Power Plant; SDWIS systems such as MARQUETTE; ISHPEMING; NEGAUNEE; NPL sites such as Cliff/Dow Dump anchor Marquette, MI's EPA extract. Derived burden score 44/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.

Health-flagged SDWIS rows in Marquette include MARQUETTE; RICHMOND TOWNSHIP; SKANDIA-WEST BRANCH WATER DEPT, while Eagle Mine Llc-Humboldt Mill leads reported TRI pounds among local Form R filers. AQS median AQI 19 / peak 67 in 2024.

Burden score 44/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Marquette -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.

Release-over-release change

What changed for Marquette, MI: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

-6.4%

4 facilities that filed in 2022 and 2023

Whole inventory

-6.4%

6.7 million lb → 6.2 million lb, every facility that filed

  • Marquette, MI's total reported releases fell from 6.7 million lb in 2022 to 6.2 million lb in 2023, based on EPA TRI filings.
  • Marquette, MI's off-site transfers fell from 2.9 thousand lb in 2022 to 1.9 thousand lb in 2023, based on EPA TRI filings.
  • Marquette, MI's land releases fell from 6.7 million lb in 2022 to 6.2 million lb in 2023, based on EPA TRI filings.
  • Marquette, MI's air releases fell from 631 lb in 2022 to 618 lb in 2023, based on EPA TRI filings.
County population (Census ACS)
66,430
TRI Facilities
5
Water Systems
23
Superfund Sites
1
Total Releases
36.7M lbs

Air Quality History (2024–2024)

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 202 (90%) 22 0 67
2024 Good Air Quality: 90% of days
Median AQI: 19

Source: 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 Michigan, see the EPA's AirNow.gov.

Water Systems (23)

System System pop (SDWIS) Violations
MARQUETTE 20,629 1
ISHPEMING 6,470 0
NEGAUNEE 4,568 0
K I SAWYER 3,000 0
MARQUETTE TOWNSHIP 2,700 0
FORSYTH TOWNSHIP 2,479 0
ISHPEMING TWP - WEST 2,148 0
ACORN TRAIL 1,090 0
NEGAUNEE TOWNSHIP 961 0
REPUBLIC TOWNSHIP 700 0
RICHMOND TOWNSHIP 489 7
TILDEN TOWNSHIP 375 0
ISHPEMING TWP - EAST 305 0
POWELL TOWNSHIP 300 0
SKANDIA-WEST BRANCH WATER DEPT 275 1
ELY TOWNSHIP-GREENWOOD 266 0
ELY TOWNSHIP-DIORITE 168 0
CHERRY CREEK VILLAGE 50 0
CHOCOLAY BUNGALOWS 50 0
PINE ACRES MOBILE HOME PARK 50 0
HERITAGE DRIVE APARTMENTS 41 0
COUNTRY LOG APTS 35 0
NEGAUNEE/ISHPEMING WATER AUTHORITY 0 0

TRI Facilities (5)

# Facility Total Releases
1 Eagle Mine Llc-Humboldt Mill 35.1M lbs
2 Eagle Mine 1.6M lbs
3 Presque Isle Power Plant 13.6K lbs
4 Dyno Nobel Inc 2.5K lbs
5 Potlatchdeltic Land & Lumber Llc. 60 lbs

Superfund Sites (1)

Site Name Status HRS Score
Cliff/Dow Dump Deleted NPL Site 34.50

Cities in Marquette (10)

Ishpeming
1 facilities · 7 water
Marquette
1 facilities · 6 water
Gwinn
1 facilities · 3 water
Champion
1 facilities · 0 water
Michigamme
1 facilities · 0 water
Negaunee
0 facilities · 3 water
Big Bay
0 facilities · 1 water
Palmer
0 facilities · 1 water
Republic
0 facilities · 1 water
Skandia
0 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in Marquette, Michigan? ▼
Marquette, MI has an environmental risk score of 44/100 (Moderate Risk), based on 5 TRI facilities, 1 Superfund sites, and 23 water systems on record. 3 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Marquette? ▼
Yes, Marquette, MI has 1 Superfund site on the EPA National Priorities List (NPL). Superfund sites are contaminated locations that require long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
How many toxic release facilities are in Marquette? ▼
Marquette, MI has 5 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 36.7M lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Marquette? ▼
In 2024, Marquette, MI recorded a median AQI of 19 and a peak AQI of 67. 90% 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 Marquette? ▼
Marquette, MI has 23 EPA-regulated water systems. 3 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 Marquette? ▼
Environmental compliance in Marquette, Michigan is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Michigan 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.

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