Data / Mines / Colorado / 50-10 Aggregate Prep Plant
50-10 Aggregate Prep Plant: 2 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
50-10 Aggregate Prep Plant is an intermittent construction sand and gravel surface mine in Chaffee County, Colorado, operated by Aca Products Inc with 3 employees on MSHA's record (mine ID 0504774). Since January 1, 2022 MSHA inspectors issued 2 citations and orders there with $302 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch 50-10 Aggregate Prep Plant (MSHA mine ID 0504774) in Chaffee County, Colorado: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0504774
- Status
- Intermittent since October 1, 2020
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Chaffee County, Colorado
- Nearest town
- Johnson Village
- Operator
- Aca Products Inc
- Employees
- 3
- MSHA field office
- Denver CO Field Office
- Citations and orders since January 1, 2022
- 2
- Significant and substantial
- 1 (50.0%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $302
- Amount paid so far
- $302
- Inspections
- 4
- Inspector hours on site
- 29
- Citations per inspection
- 0.50 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- December 5, 2025
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 |
|---|---|---|---|---|
| 2025 | 2 | 1 | $302 | 0 |
Standards cited most at 50-10 Aggregate Prep Plant
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 56.20003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 1 |
Other open mines in Chaffee County, Colorado
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Butala Construction Company | Butala Construction Company | Chaffee County, CO | Construction sand and gravel | 11 | 47 |
| Pioneer 2148 Portable Jaw Crusher | Pelino Inc | Chaffee County, CO | Construction sand and gravel | 3 | 26 |
| 50-3-19 Nordberg 3054 Jaw Crusher | Aca Products Inc | Chaffee County, CO | Construction sand and gravel | 3 | 9 |
| Monarch Quarry | Colorado Lime Company | Chaffee County, CO | Crushed, broken limestone | 3 | 5 |
| Pit Number One | Arkansas Valley Aggregate LLC | Chaffee County, CO | Construction sand and gravel | 2 | 4 |
| 50-3-11 Rip Rap Plant Custombuilt | Aca Products Inc | Chaffee County, CO | Dimension granite | 2 | 2 |
| 50-3-22 Portable Wash Plant | Aca Products Inc | Chaffee County, CO | Construction sand and gravel | 8 | 0 |
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.