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Randolph, IL

Moderate Risk (38/100)

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 Randolph in Illinois · Population: 30,142

TRI sites such as Baldwin Energy Complex; Roeslein Modular Fabrication; Spartan Light Metal Products Inc; SDWIS systems such as CHESTER; SPARTA; STEELEVILLE anchor Randolph, IL's EPA extract. Derived burden score 38/100 (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 Randolph include CHESTER; SPARTA; STEELEVILLE, while Baldwin Energy Complex leads reported TRI pounds among local Form R filers. AQS median AQI 40 / peak 100 in 2024.

Burden score 38/100 (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 Randolph -- 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 Randolph, IL: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

-16.9%

4 facilities that filed in 2022 and 2023

Whole inventory

-16.9%

131.3 thousand lb → 109.1 thousand lb, every facility that filed

  • Randolph, IL's total reported releases fell from 131.3 thousand lb in 2022 to 109.1 thousand lb in 2023, based on EPA TRI filings.
  • Randolph, IL's water releases fell from 13.7 thousand lb in 2022 to 393 lb in 2023, based on EPA TRI filings.
  • Randolph, IL's air releases fell from 82.8 thousand lb in 2022 to 74.5 thousand lb in 2023, based on EPA TRI filings.
  • Randolph, IL's land releases fell from 34.9 thousand lb in 2022 to 34.2 thousand lb in 2023, based on EPA TRI filings.
County population (Census ACS)
30,142
TRI Facilities
6
Water Systems
8
Superfund Sites
0
Total Releases
532.5K 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 289 (79%) 77 0 100
2023 215 (59%) 137 11 156
2022 244 (67%) 119 2 108
2021 223 (63%) 131 1 122
2020 243 (66%) 121 2 103
2024 Good Air Quality: 79% of days
Median AQI: 40

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 Illinois, see the EPA's AirNow.gov.

Water Systems (8)

System System pop (SDWIS) Violations
CHESTER 8,407 1
SPARTA 4,395 15
STEELEVILLE 1,960 18
PERCY 961 0
PRAIRIE DU ROCHER 759 1
TILDEN 740 2
EVANSVILLE 660 7
ELLIS GROVE 403 0

TRI Facilities (6)

# Facility Total Releases
1 Baldwin Energy Complex 530.9K lbs
2 Roeslein Modular Fabrication 921 lbs
3 Spartan Light Metal Products Inc 356 lbs
4 US Army National Guard Sparta Training Area Ranges 233 lbs
5 Dormakaba USA Inc 20 lbs
6 Ardent Mills LLC 0 lbs

Cities in Randolph (10)

Sparta
2 facilities · 1 water
Chester
1 facilities · 1 water
Red Bud
1 facilities · 1 water
Steeleville
1 facilities · 1 water
Baldwin
1 facilities · 0 water
Ellis Grove
0 facilities · 1 water
Evansville
0 facilities · 1 water
Percy
0 facilities · 1 water
Prairie Du Rocher
0 facilities · 1 water
Tilden
0 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in Randolph, Illinois? ▼
Randolph, IL has an environmental risk score of 38/100 (Moderate Risk), based on 6 TRI facilities, 0 Superfund sites, and 8 water systems on record. 6 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Randolph? ▼
No Superfund National Priorities List (NPL) sites are currently registered in Randolph, IL in the EPA database.
How many toxic release facilities are in Randolph? ▼
Randolph, IL has 6 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 532.5K lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Randolph? ▼
In 2024, Randolph, IL recorded a median AQI of 40 and a peak AQI of 100. 79% 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 Randolph? ▼
Randolph, IL has 8 EPA-regulated water systems. 6 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 Randolph? ▼
Environmental compliance in Randolph, Illinois is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Illinois 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