Jefferson, 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 Jefferson in Colorado · Population: 579,715
TRI sites such as Ball Metal Beverage Container Corp; Molson Coors USA LLC - Golden Brewery; Rocky Mountain Metal Container; SDWIS systems such as WESTMINSTER CITY OF; ARVADA CITY OF; CONSOLIDATED MUTUAL MAPLE GROVE; NPL sites such as Air Force Plant PJKS; Rocky Flats Plant (USDOE) anchor Jefferson, CO's EPA extract. Derived burden score 60/100 (High 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 Jefferson include GREEN MOUNTAIN WSD; WHEAT RIDGE WATER DISTRICT; KIMBERLY HILLS MHP, while Ball Metal Beverage Container Corp leads reported TRI pounds among local Form R filers. AQS median AQI 50 / peak 174 in 2024.
Burden score 60/100 (High 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 Jefferson -- 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 Jefferson, CO: EPA TRI 2023 reporting year
Same facilities, both years
-12.1%
13 facilities that filed in 2022 and 2023
Whole inventory
-12.1%
374.5 thousand lb → 329.2 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 3 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Jefferson, CO's total reported releases fell from 374.4 thousand lb in 2022 to 329.2 thousand lb in 2023, based on EPA TRI filings.
- Jefferson, CO's off-site transfers fell from 24.1 thousand lb in 2022 to 4.3 thousand lb in 2023, based on EPA TRI filings.
- Jefferson, CO's water releases fell from 157.6 thousand lb in 2022 to 146.0 thousand lb in 2023, based on EPA TRI filings.
- Jefferson, CO's air releases fell from 192.7 thousand lb in 2022 to 178.9 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 | 192 (52%) | 137 | 30 | 174 |
| 2023 | 206 (56%) | 141 | 18 | 143 |
| 2022 | 234 (64%) | 100 | 30 | 166 |
| 2021 | 222 (61%) | 88 | 44 | 172 |
| 2020 | 231 (63%) | 108 | 23 | 161 |
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 (98)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| WESTMINSTER CITY OF | 202,078 | 0 |
| ARVADA CITY OF | 171,610 | 0 |
| CONSOLIDATED MUTUAL MAPLE GROVE | 81,400 | 0 |
| GREEN MOUNTAIN WSD | 49,400 | 3 |
| SOUTHWEST METROPOLITAN WSD | 48,648 | 0 |
| BANCROFT CLOVER WSD | 44,000 | 0 |
| GOLDEN CITY OF | 38,288 | 0 |
| BEAR CREEK WSD | 30,000 | 0 |
| WHEAT RIDGE WATER DISTRICT | 20,000 | 1 |
| PLATTE CANYON WSD | 19,485 | 0 |
| KEN CARYL WSD | 12,000 | 0 |
| LAKEHURST WSD | 12,000 | 0 |
| NORTH TABLE MOUNTAIN WSD | 10,000 | 0 |
| VALLEY WD | 10,000 | 0 |
| MORRISON TOWN OF | 9,887 | 0 |
| WILLOWBROOK WSD | 9,348 | 0 |
| LAKEWOOD CITY OF | 6,000 | 0 |
| EDGEWATER CITY OF | 5,300 | 0 |
| GENESEE WSD | 3,920 | 0 |
| MEADOWBROOK WD | 3,290 | 0 |
| WIKIUP MHP | 2,500 | 0 |
| ALAMEDA WSD | 2,480 | 0 |
| KIMBERLY HILLS MHP | 2,005 | 1 |
| MOUNTAIN WSD | 1,941 | 3 |
| PINE LAKES RANCH | 1,905 | 0 |
| FRIENDLY VILLAGE OF AURORA MHP | 1,786 | 0 |
| RALSTON VALLEY WSD | 1,610 | 0 |
| HILLCREST VILLAGE MHP | 1,505 | 0 |
| REDWOOD ESTATES | 1,500 | 0 |
| LOOKOUT MOUNTAIN WD | 1,378 | 41 |
| INDIAN HILLS WD | 1,300 | 6 |
| GREATROCK NORTH WSD | 1,250 | 0 |
| CANTERBURY PARK | 1,240 | 0 |
| THE SPRINGS MHP | 1,229 | 0 |
| HARMONY VILLAGE MHP | 1,215 | 0 |
| DENVER CASCADE MHP | 1,200 | 1 |
| HOLIDAY HILLS VILLAGE | 1,190 | 0 |
| STONEYBROOK MHP | 1,073 | 0 |
| CIMARRON VILLAGE | 1,010 | 0 |
| LONGVIEW MHP | 1,000 | 0 |
| BOW MAR WSD | 899 | 0 |
| COUNTRYSIDE VILLAGE OF DENVER | 863 | 0 |
| COLUMBINE LAKES HOA | 843 | 0 |
| VILLA WEST | 833 | 0 |
| GOLDEN TERRACE WEST | 825 | 1 |
| DEER CREEK WD | 792 | 2 |
| COUNTRYSIDE OF LONGMONT | 775 | 0 |
| THE MEADOWS | 758 | 0 |
| FRIENDLY VILLAGE OF GREELEY MHP | 660 | 1 |
| LAMPLIGHTER MHP | 651 | 0 |
| LAMPLIGHTER RHP | 643 | 0 |
| CANYON RIDGE | 625 | 0 |
| GOLDEN TERRACE VILLAGE | 580 | 1 |
| ST VRAIN MHP LLC | 544 | 0 |
| CRESTLINE MANOR | 505 | 0 |
| PUEBLO GRANDE VILLAGE | 504 | 0 |
| SHERIDAN MHP | 480 | 0 |
| MOUNTAINSIDE ESTATES MHP | 473 | 2 |
| MESA CORTINA WSD | 466 | 0 |
| ST MARYS GLACIER WSD | 451 | 16 |
| COUNTRYSIDE OF GREELEY | 435 | 0 |
| SADDLEBACK RV | 425 | 0 |
| GOLDEN TERRACE SOUTH | 425 | 1 |
| REDHILL FOREST POMWACA | 388 | 0 |
| STONEYBROOK POINTE | 355 | 0 |
| BLUE MOUNTAIN WD | 350 | 0 |
| BONVUE WATER AND SANITATION DISTRICT | 350 | 0 |
| GREEN ACRES MHP | 325 | 1 |
| ELDORADO MUNICIPAL SYSTEM | 308 | 1 |
| THORNTON ESTATES | 300 | 0 |
| FALCON HEIGHTS POA | 300 | 0 |
| COUNTRY ESTATES MOBILE HOME PARK | 297 | 0 |
| TERRACE PARK MHP | 297 | 3 |
| PLEASANT GROVE MHP | 285 | 0 |
| LOVELAND MHP | 283 | 0 |
| GRAND MEADOW OF LONGMONT MHP | 255 | 0 |
| GARDEN MEADOWS | 250 | 0 |
| OLDE STAGE WD | 250 | 0 |
| ELEVADO ESTATES LLC | 250 | 0 |
| INSPIRATION VALLEY MHP | 250 | 0 |
| MAJESTIC MHP | 232 | 0 |
| SEDALIA WSD | 215 | 4 |
| RIVERDALE PEAKS II MD | 209 | 0 |
| LAFAYETTE GARDENS | 207 | 0 |
| BARR LAKE RVP | 204 | 0 |
| GRANBY JONES MHP | 201 | 0 |
| SHADY LANE MHP | 165 | 0 |
| CREEKSIDE SOUTH ESTATES METRO DISTRICT | 160 | 20 |
| 4 WAY RANCH MD 2 | 150 | 2 |
| BELLA VISTA | 131 | 0 |
| COMMERCE HEIGHTS | 130 | 0 |
| BUFFALO CREEK WD | 125 | 7 |
| SIERRA BONITA ESTATES | 122 | 2 |
| SIERRA VISTA HOA | 120 | 0 |
| BUFFALO RIDGE ESTATES | 90 | 0 |
| TABLE MESA VILLAGE MHP | 75 | 21 |
| GRACE MAR WUA | 50 | 0 |
| SHAWNEE WCA | 50 | 3 |
TRI Facilities (19)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Ball Metal Beverage Container Corp | 552.1K lbs |
| 2 | Molson Coors USA LLC - Golden Brewery | 532.3K lbs |
| 3 | Rocky Mountain Metal Container | 393.1K lbs |
| 4 | Advanced Surface Technologies Inc | 161.1K lbs |
| 5 | Cf Maier Composites Inc | 7.4K lbs |
| 6 | Terumo Bct Sterilization Services Inc | 7.3K lbs |
| 7 | Lockheed Martin Space | 1.0K lbs |
| 8 | Rocky Mountain Bottle Co | 460 lbs |
| 9 | Martin Marietta Spec Agg | 246 lbs |
| 10 | Livanova | 150 lbs |
| 11 | Ttm Technologies | 73 lbs |
| 12 | Usda Forest Service Jefferson County Air Tanker Ba | 63 lbs |
| 13 | Coorstek | 55 lbs |
| 14 | Smyrna Ready Mix Concrete LLC - Arvada Ready Mix | 1 lbs |
| 15 | Smyrna Ready Mix Concrete LLC - Spec Agg Ready Mix | 0 lbs |
| 16 | Burnco Colorado LLC - Jeffco | 0 lbs |
| 17 | Lakewood Brick & Tile Co. | 0 lbs |
| 18 | Electro-Mechanical Products Inc | 0 lbs |
| 19 | Sundyne LLC | 0 lbs |
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| Air Force Plant PJKS | NPL Site | 42.93 |
| Rocky Flats Plant (USDOE) | NPL Site | 64.32 |
Cities in Jefferson (9)
Frequently Asked Questions
What is the environmental risk level in Jefferson, 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.