Lake, 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 Lake in Colorado · Population: 7,411
TRI sites such as Climax Molybdenum Co-Climax Mine; SDWIS systems such as PARKVILLE WD; MOUNTAIN VALLEY ESTATES; MT ELBERT WA; NPL sites such as California Gulch anchor Lake, CO's EPA extract. Derived burden score 33/100 (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 Lake include MT ELBERT WA, while Climax Molybdenum Co-Climax Mine leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 33/100 (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 Lake -- 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 Lake, CO: EPA TRI 2023 reporting year
Same facilities, both years
+4.1%
1 facilities that filed in 2022 and 2023
Whole inventory
+4.1%
2.8 million lb → 2.9 million lb, every facility that filed
- Lake, CO's total reported releases rose from 2.8 million lb in 2022 to 2.9 million lb in 2023, based on EPA TRI filings.
- Lake, CO's off-site transfers rose from 0 lb in 2022 to 247 lb in 2023, based on EPA TRI filings.
- Lake, CO's land releases rose from 2.8 million lb in 2022 to 2.9 million lb in 2023, based on EPA TRI filings.
- Lake, CO's air releases fell from 1.4 thousand lb in 2022 to 1.4 thousand lb in 2023, based on EPA TRI filings.
Water Systems (3)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| PARKVILLE WD | 7,500 | 0 |
| MOUNTAIN VALLEY ESTATES | 200 | 0 |
| MT ELBERT WA | 170 | 1 |
TRI Facilities (1)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Climax Molybdenum Co-Climax Mine | 12.5M lbs |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| California Gulch | NPL Site | 55.84 |
Cities in Lake (2)
Frequently Asked Questions
What is the environmental risk level in Lake, Colorado? ▼
Are there Superfund sites in Lake? ▼
How many toxic release facilities are in Lake? ▼
What is the air quality in Lake? ▼
Is the drinking water safe in Lake? ▼
What environmental agencies cover Lake? ▼
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.