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Monroe, IN

Moderate Risk (39/100)

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.

Environmental data for Monroe in Indiana · Population: 139,822

TRI sites such as Cook Inc Ellettsville North; Circle-Prosco Inc; SDWIS systems such as CITY OF BLOOMINGTON UTILITIES; ELLETTSVILLE WATER WORKS; SOUTHERN MONROE WATER AUTHORITY; NPL sites such as Bennett Stone Quarry; Lemon Lane Landfill; Neal's Landfill (Bloomington) anchor Monroe, IN's EPA extract. Derived burden score 39/100 (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 Monroe include CITY OF BLOOMINGTON UTILITIES; ELLETTSVILLE WATER WORKS; SOUTHERN MONROE WATER AUTHORITY, while Cook Inc Ellettsville North leads reported TRI pounds among local Form R filers. AQS median AQI 34 / peak 63 in 2024.

Burden score 39/100 (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 Monroe -- 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.

County population (Census ACS)
139,822
TRI Facilities
2
Water Systems
10
Superfund Sites
3
Total Releases
324 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 290 (81%) 69 0 63
2023 245 (67%) 115 3 230
2022 265 (76%) 82 0 96
2021 223 (63%) 129 0 95
2020 240 (67%) 117 0 72
2024 Good Air Quality: 81% of days
Median AQI: 34

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 Indiana, see the EPA's AirNow.gov.

Water Systems (10)

System System pop (SDWIS) Violations
CITY OF BLOOMINGTON UTILITIES 83,000 4
ELLETTSVILLE WATER WORKS 14,500 8
SOUTHERN MONROE WATER AUTHORITY 8,877 2
VAN BUREN WATER, INC. 6,670 2
WASHINGTON TWP WATER AUTHORITY 3,825 0
EAST MONROE WATER CORPORATION 3,648 8
SWITZ CITY WATER WORKS 888 0
RHS WATER CORPORATION 870 1
ELNORA WATER WORKS 620 0
SALT CREEK SERVICES, INC. 90 49

TRI Facilities (2)

# Facility Total Releases
1 Cook Inc Ellettsville North 224 lbs
2 Circle-Prosco Inc 100 lbs

Superfund Sites (3)

Site Name Status HRS Score
Bennett Stone Quarry Deleted NPL Site 32.55
Lemon Lane Landfill Deleted NPL Site 29.31
Neal's Landfill (Bloomington) Deleted NPL Site 42.93

Cities in Monroe (2)

Bloomington
1 facilities · 10 water
Ellettsville
1 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in Monroe, Indiana? ▼
Monroe, IN has an environmental risk score of 39/100 (Moderate Risk), based on 2 TRI facilities, 3 Superfund sites, and 10 water systems on record. 7 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Monroe? ▼
Yes, Monroe, IN has 3 Superfund sites 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 Monroe? ▼
Monroe, IN has 2 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 324 lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Monroe? ▼
In 2024, Monroe, IN recorded a median AQI of 34 and a peak AQI of 63. 81% 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 Monroe? ▼
Monroe, IN has 10 EPA-regulated water systems. 7 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 Monroe? ▼
Environmental compliance in Monroe, Indiana is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Indiana 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