La Plata, 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.
Environmental data for La Plata in Colorado · Population: 56,088
TRI sites such as Harvest Four Corners; Animas Glacier Gravel; Elam Construction Inc - Durango Batch Plant; SDWIS systems such as DURANGO CITY OF; ANIMAS WC; BAYFIELD TOWN OF anchor La Plata, CO's EPA extract. Derived burden score 30/100 (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 La Plata include EDGEMONT RANCH MD; PIEDRA PARK MD; IGNACIO TOWN OF, while Harvest Four Corners leads reported TRI pounds among local Form R filers. AQS median AQI 46 / peak 240 in 2024.
Burden score 30/100 (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 La Plata -- 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 La Plata, CO: EPA TRI 2023 reporting year
Same facilities, both years
+14.6%
2 facilities that filed in 2022 and 2023
Whole inventory
+14.6%
9.6 thousand lb → 11.0 thousand lb, every facility that filed
- La Plata, CO's total reported releases rose from 9.6 thousand lb in 2022 to 11.0 thousand lb in 2023, based on EPA TRI filings.
- La Plata, CO's air releases rose from 9.6 thousand lb in 2022 to 11.0 thousand 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 | 241 (66%) | 123 | 1 | 240 |
| 2023 | 237 (65%) | 123 | 2 | 211 |
| 2022 | 266 (73%) | 98 | 1 | 108 |
| 2021 | 239 (66%) | 121 | 4 | 140 |
| 2020 | 273 (75%) | 91 | 2 | 133 |
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 (48)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| DURANGO CITY OF | 33,787 | 0 |
| ANIMAS WC | 3,096 | 0 |
| BAYFIELD TOWN OF | 2,300 | 0 |
| FOREST LAKES MD | 1,699 | 0 |
| IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM | 1,527 | 0 |
| EDGEMONT RANCH MD | 1,200 | 1 |
| PIEDRA PARK MD | 850 | 2 |
| IGNACIO TOWN OF | 800 | 3 |
| DURANGO WEST MD NO 1 | 750 | 2 |
| ELBERT CREEK WATER CO | 750 | 5 |
| LA PLATA ARCHULETA WATER DISTRICT | 510 | 0 |
| EL RANCHO FLORIDA MD | 400 | 1 |
| LA PLATA WEST WATER AUTHORITY | 354 | 1 |
| SOUTHWEST HORIZON RANCH | 323 | 0 |
| HOMESTEAD TRAILS | 258 | 0 |
| FLORIDA RIVER ESTATES HOA INC | 239 | 6 |
| ROSA JOINT VENTURES WATER SYSTEM | 239 | 66 |
| WESTSIDE MHP | 236 | 1 |
| FALLS CREEK RANCH | 215 | 0 |
| HAPPY SCENES WS INC | 209 | 0 |
| DURANGO REGENCY MHP | 200 | 0 |
| MOUNTAIN MAN WATER SERVICE | 200 | 0 |
| BLUE SKY RANCH INC ASSOC OF OWNERS | 180 | 0 |
| EASY WATER LLC | 154 | 0 |
| DURANGO NORTH VILLAGE | 150 | 0 |
| KNOLLS AT DURANGO HOA | 150 | 1 |
| NARROW GAUGE MHP | 150 | 0 |
| ISLAND COVE PARK | 143 | 0 |
| LOS RANCHITOS HOA | 120 | 0 |
| OLD HOMESTEAD MHP | 120 | 0 |
| UTE PASS WA INC | 120 | 22 |
| DURANGO JCMHP, LLC | 100 | 10 |
| HERMOSA VILLAGE | 98 | 0 |
| GOODMAN POA | 96 | 0 |
| FORREST GROVE ESTATES | 92 | 0 |
| LIGHTNER CREEK MHP | 90 | 2 |
| FREEMAN CREEK | 88 | 10 |
| TWILIGHT WC | 78 | 4 |
| ESCALANTE VILLAGE | 62 | 0 |
| HEARTWOOD CO OP HOUSING | 60 | 0 |
| SIERRA VERDE WATER INC. | 60 | 0 |
| PINE RIVER MDCA | 44 | 20 |
| PINON HEIGHTS MHP | 43 | 0 |
| VAN DEN BERG MD | 41 | 3 |
| DURANGO FALFA MHC LLC | 40 | 6 |
| MESA MOBILE PARK | 30 | 0 |
| SCENIC SQUARE SUBD | 25 | 0 |
| WELL ON WHEELS WATER HAULER | 25 | 5 |
TRI Facilities (3)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Harvest Four Corners | 20.6K lbs |
| 2 | Animas Glacier Gravel | 71 lbs |
| 3 | Elam Construction Inc - Durango Batch Plant | 2 lbs |
Cities in La Plata (4)
Frequently Asked Questions
What is the environmental risk level in La Plata, Colorado? ▼
Are there Superfund sites in La Plata? ▼
How many toxic release facilities are in La Plata? ▼
What is the air quality in La Plata? ▼
Is the drinking water safe in La Plata? ▼
What environmental agencies cover La Plata? ▼
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.