Data / Mines / Colorado / Portable Unit #1
Portable Unit #1: 25 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Portable Unit #1 is an intermittent crushed, broken stone surface mine in Fremont County, Colorado, operated by Colorado Quarries Inc with 2 employees on MSHA's record (mine ID 0504199). Since January 1, 2022 MSHA inspectors issued 25 citations and orders there with $8,294 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Portable Unit #1 (MSHA mine ID 0504199) in Fremont County, Colorado: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0504199
- Status
- Intermittent since July 22, 2026
- Main commodity
- Crushed, broken stone
- Mine type
- Surface
- County
- Fremont County, Colorado
- Nearest town
- Canon City
- Operator
- Colorado Quarries Inc
- Employees
- 2
- MSHA field office
- Denver CO Field Office
- Citations and orders since January 1, 2022
- 25
- Significant and substantial
- 3 (12.0%)
- Closure orders
- 0
- High negligence or reckless
- 9
- Proposed penalties
- $8,294
- Amount paid so far
- $8,294
- Inspections
- 13
- Inspector hours on site
- 64
- Citations per inspection
- 1.92 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- July 8, 2026
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 4 | 0 | $614 | 0 |
| 2023 | 2 | 0 | $286 | 0 |
| 2024 | 6 | 0 | $882 | 0 |
| 2025 | 9 | 2 | $5,661 | 0 |
| 2026 | 4 | 1 | $851 | 0 |
Standards cited most at Portable Unit #1
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.16006 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4100 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4203 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11012 | Surface metal and nonmetal mines | 1 |
Other open mines in Fremont County, Colorado
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Amrize Portland Plant | Holcim (US) Incorporated | Fremont County, CO | Cement | 175 | 644 |
| Red Canyon Quarry | Martin Marietta Materials, Inc. | Fremont County, CO | Crushed, broken stone | 10 | 23 |
| Yevoli Cobblestone Pit | Yevoli Cobblestone Inc | Fremont County, CO | Construction sand and gravel | 1 | 17 |
| Langston Concrete Inc. | Langston Concrete Inc. | Fremont County, CO | Construction sand and gravel | 6 | 14 |
| Wash Plant 2 | Oldcastle SW Group, Inc. | Fremont County, CO | Construction sand and gravel | 2 | 13 |
| Penrose Ranch Gravel Pit | Martin Marietta Materials, Inc. | Fremont County, CO | Construction sand and gravel | 11 | 12 |
| Portable Crusher #6 | Oldcastle SW Group, Inc. | Fremont County, CO | Construction sand and gravel | 6 | 8 |
| Portable Unit Extec | Super Ex., LLC | Fremont County, CO | Construction sand and gravel | 3 | 8 |
| Portable | Langston Concrete Inc. | Fremont County, CO | Construction sand and gravel | 6 | 7 |
| Kleemann Ms15z-Ad | Rocky Mountain Landscape Materials, LLC | Fremont County, CO | Construction sand and gravel | 2 | 3 |
| Portable Unit Eljay1140 | Super Ex., LLC | Fremont County, CO | Construction sand and gravel | 4 | 1 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.