Portable Unit #4
MSHA mine ID 0504384 · Custer County, CO
- Operator
- Colorado Quarries Inc
- Controller
- Bill Tezak
- Mine status
- Active since Apr 16, 2026
- Mine type
- Surface
- Primary commodity
- Construction Sand and Gravel
- Citations issued
- Mar 18, 2025 to Sep 25, 2026
Past 24 months at a glance
- Inspections
- 3
- Citations and orders
- 4
- Marked S&S by MSHA
- 0
- Assessed penalties
- $453
3 of 4 citations have an MSHA assessment so far, first proposed at $453. 0 are marked contested.
Citations by standard
The 30 CFR section MSHA cited, most cited first.
| Standard | Citations | Assessed |
|---|---|---|
| 56.14132(a) | 1 | $151 |
| 56.14207 | 1 | $151 |
| 56.16006 | 1 | $0 |
| 56.9300(a) | 1 | $151 |
Latest citations
| Issued | Assessed |
|---|---|
| Sep 25, 2026 No. 5213358 56.16006 | Not yet assessed |
| Oct 23, 2025 No. 5054244 56.14132(a) | $151 Closed |
| Mar 18, 2025 No. 9829737 56.9300(a) | $151 Closed |
| Mar 18, 2025 No. 9829736 56.14207 | $151 Closed |
Latest inspections
Regular Safety and Health Inspection
Event F03DCE1
Sep 24, 2026 to Sep 28, 2026
Regular Safety and Health Inspection
Event F02CF36
Oct 23, 2025 to Oct 24, 2025
Regular Safety and Health Inspection
Event F01D9E4
Mar 17, 2025 to Mar 19, 2025
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About this record
These figures come from public Mine Safety and Health Administration (MSHA) open government data on mines, inspections, violations and assessed violations. MineCitation copies them as published and does not add findings of its own.
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