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Fremont, CO

Moderate Risk (36/100)

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 Fremont in Colorado · Population: 49,394

TRI sites such as Holcim (us) Inc Portland Plant; Fcc Florence; SDWIS systems such as CANON CITY CITY OF; FLORENCE CITY OF; PENROSE WD; NPL sites such as Lincoln Park anchor Fremont, CO's EPA extract. Derived burden score 36/100 (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 Fremont include FLORENCE CITY OF; PENROSE WD; ROCKVALE TOWN OF, while Holcim (us) Inc Portland Plant leads reported TRI pounds among local Form R filers. AQS median AQI 13 / peak 59 in 2024.

Burden score 36/100 (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 Fremont -- 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 Fremont, CO: EPA TRI 2023 reporting year

2022 → 2023

Same facilities, both years

+24.4%

2 facilities that filed in 2022 and 2023

Whole inventory

+24.4%

156.1 thousand lb → 194.1 thousand lb, every facility that filed

  • Fremont, CO's total reported releases rose from 156.1 thousand lb in 2022 to 194.1 thousand lb in 2023, based on EPA TRI filings.
  • Fremont, CO's land releases rose from 0 lb in 2022 to 2.6 thousand lb in 2023, based on EPA TRI filings.
  • Fremont, CO's air releases rose from 156.1 thousand lb in 2022 to 191.5 thousand lb in 2023, based on EPA TRI filings.
County population (Census ACS)
49,394
TRI Facilities
2
Water Systems
10
Superfund Sites
1
Total Releases
1.0M 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 354 (98%) 8 0 59
2023 162 (99%) 1 0 71
2022 115 (97%) 3 0 77
2021 85 (99%) 1 0 62
2020 17 (100%) 0 0 27
2024 Good Air Quality: 98% of days
Median AQI: 13

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 Colorado, see the EPA's AirNow.gov.

Water Systems (10)

System System pop (SDWIS) Violations
CANON CITY CITY OF 34,800 0
FLORENCE CITY OF 7,500 3
PENROSE WD 3,149 3
WILLIAMSBURG TOWN OF 775 0
ROCKVALE TOWN OF 504 2
BROOKSIDE TOWN OF 438 0
COAL CREEK TOWN OF 350 0
EAST FLORENCE WA 326 0
WATER ON THE SPOT 284 0
ORCHARD PARK WA INC 78 0

TRI Facilities (2)

# Facility Total Releases
1 Holcim (us) Inc Portland Plant 991.0K lbs
2 Fcc Florence 10.3K lbs

Superfund Sites (1)

Site Name Status HRS Score
Lincoln Park NPL Site 31.31

Cities in Fremont (7)

Florence
2 facilities · 3 water
Canon City
0 facilities · 3 water
Brookside
0 facilities · 1 water
Coal Creek
0 facilities · 1 water
Penrose
0 facilities · 1 water
Rockvale
0 facilities · 1 water
Williamsburg
0 facilities · 1 water

Frequently Asked Questions

What is the environmental risk level in Fremont, Colorado? ▼
Fremont, CO has an environmental risk score of 36/100 (Moderate Risk), based on 2 TRI facilities, 1 Superfund sites, and 10 water systems on record. 3 water systems have health-based violations. Source: EPA TRI, SDWIS, and Superfund NPL.
Are there Superfund sites in Fremont? ▼
Yes, Fremont, CO 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 Fremont? ▼
Fremont, CO has 2 TRI-reporting facilities on record with the EPA Toxic Release Inventory, with a combined total of 1.0M lbs in reported toxic releases. TRI facilities self-report annual chemical release data to the EPA.
What is the air quality in Fremont? ▼
In 2024, Fremont, CO recorded a median AQI of 13 and a peak AQI of 59. 98% 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 Fremont? ▼
Fremont, CO has 10 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 Fremont? ▼
Environmental compliance in Fremont, Colorado is overseen by the U.S. Environmental Protection Agency (EPA) at the federal level and the Colorado 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