Grand, CO
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 Grand in Colorado · Population: 15,794
TRI sites such as Climax Molybdenum Co Henderson Mill; Kilgore DBA Peak Mat - Fraser Plants; SDWIS systems such as WINTER PARK WSD; GRAND COUNTY WATER NO 1; WINTER PARK RANCH WSD anchor Grand, 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 Grand include GRAND COUNTY WATER NO 1; KREMMLING TOWN OF; SODA SPRINGS WA, while Climax Molybdenum Co Henderson Mill leads reported TRI pounds among local Form R filers. AQS median AQI 45 / peak 93 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 Grand -- 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 Grand, CO: EPA TRI 2023 reporting year
Same facilities, both years
+61.7%
2 facilities that filed in 2022 and 2023
Whole inventory
+61.7%
869.8 thousand lb → 1.4 million lb, every facility that filed
- Grand, CO's total reported releases rose from 869.8 thousand lb in 2022 to 1.4 million lb in 2023, based on EPA TRI filings.
- Grand, CO's off-site transfers fell from 1.0 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Grand, CO's air releases fell from 1.8 thousand lb in 2022 to 336 lb in 2023, based on EPA TRI filings.
- Grand, CO's land releases rose from 867.0 thousand lb in 2022 to 1.4 million lb in 2023, based on EPA TRI filings.
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 | 133 (83%) | 28 | 0 | 93 |
| 2023 | 131 (83%) | 27 | 0 | 77 |
| 2022 | 136 (78%) | 38 | 0 | 80 |
| 2021 | 13 (62%) | 7 | 1 | 119 |
| 2020 | 134 (77%) | 39 | 2 | 112 |
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 (21)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| WINTER PARK WSD | 6,635 | 0 |
| GRAND COUNTY WATER NO 1 | 5,400 | 8 |
| WINTER PARK RANCH WSD | 3,250 | 0 |
| GRANBY TOWN OF SOUTH SERVICE AREA | 2,300 | 0 |
| FRASER TOWN OF | 2,150 | 0 |
| GRAND LAKE TOWN OF | 2,035 | 0 |
| GRANBY TOWN OF NORTH SERVICE AREA | 2,025 | 0 |
| KREMMLING TOWN OF | 1,859 | 5 |
| HOT SULPHUR SPRINGS TOWN OF | 687 | 0 |
| YMCA SNOW MTN RANCH | 578 | 0 |
| TABERNASH MEADOWS WSD | 564 | 0 |
| COLUMBINE LAKE WSD | 428 | 0 |
| BLUE VALLEY MD | 410 | 0 |
| NORTH SHORE WSD | 378 | 0 |
| SODA SPRINGS WA | 280 | 2 |
| LAKE FOREST MUTUAL WC | 250 | 0 |
| RIVER RANCH VILLAGE MHP LLC | 140 | 0 |
| MORAINE PARK WS | 100 | 1 |
| OLYMPIC VILLAGE | 75 | 0 |
| LAKESHORE MOBILE HOME PARK | 58 | 0 |
| GRANBY TOWN OF WEST SERVICE AREA | 0 | 0 |
TRI Facilities (2)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Climax Molybdenum Co Henderson Mill | 5.2M lbs |
| 2 | Kilgore DBA Peak Mat - Fraser Plants | 15 lbs |
Cities in Grand (8)
Frequently Asked Questions
What is the environmental risk level in Grand, Colorado? ▼
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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.
Read our methodology - how this data is sourced, computed, and verified.