Data / Mines / Arcosa Aggregates West, LLC.
Arcosa Aggregates West, LLC.: 114 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Arcosa Aggregates West, LLC. (MSHA operator ID 0186133) operates 9 open mines with 39 employees in Arizona, mostly construction sand and gravel. Since January 1, 2022 MSHA inspectors issued it 114 citations and orders with $32,824 in proposed penalties, and it reported 18 injury or illness cases. Data from MSHA, November 6, 2026.
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- MSHA operator ID
- 0186133
- Open mines
- 9
- Employees at open mines
- 39
- States
- Arizona
- Parent company
- CRH PLC
- Citations and orders since January 1, 2022
- 114
- Significant and substantial
- 25 (21.9%)
- Closure orders
- 1
- High negligence or reckless
- 8
- Proposed penalties
- $32,824
- Amount paid so far
- $28,185
- Inspections
- 67
- Inspector hours on site
- 392
- Citations per inspection
- 1.70 (all mines 2.30)
- Accident reports
- 18
- Injury and illness cases
- 18
- Fatalities
- 0
- Latest MSHA record
- September 30, 2026
Open mines of Arcosa Aggregates West, LLC.
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| 1050 Estrella Pit | Arcosa Aggregates West, LLC. | Apache County, AZ | Construction sand and gravel | 1 | 31 |
| 1016 Peoria | Arcosa Aggregates West, LLC. | Maricopa County, AZ | Construction sand and gravel | 10 | 30 |
| 1013 Coolidge | Arcosa Aggregates West, LLC. | Pinal County, AZ | Construction sand and gravel | 0 | 24 |
| 1014 Eagle Mountain Quarry | Arcosa Aggregates West, LLC. | Maricopa County, AZ | Construction sand and gravel | 6 | 14 |
| 1012 Queen Creek #3 | Arcosa Aggregates West, LLC. | Pinal County, AZ | Construction sand and gravel | 0 | 12 |
| 1046 Shaw | Arcosa Aggregates West, LLC. | Maricopa County, AZ | Construction sand and gravel | 4 | 7 |
| 1024 San Tan Valley | Arcosa Aggregates West, LLC. | Pinal County, AZ | Sand, common | 8 | 6 |
| 1015 Northern | Arcosa Aggregates West, LLC. | Maricopa County, AZ | Construction sand and gravel | 4 | 5 |
| 1051 Sun City Plant | Arcosa Aggregates West, LLC. | Maricopa County, AZ | Construction sand and gravel | 6 | 2 |
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 | 3 | 0 | $429 | 0 |
| 2023 | 25 | 4 | $5,133 | 6 |
| 2024 | 21 | 3 | $4,366 | 4 |
| 2025 | 38 | 13 | $15,970 | 5 |
| 2026 | 27 | 5 | $6,926 | 3 |
Standards cited most at Arcosa Aggregates West, LLC.
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 | 13 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.5001 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14201 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.16005 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.11003 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 2 |
Injury and illness cases at Arcosa Aggregates West, LLC.
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 16 |
| No lost time, or an occupational illness | 2 |
What the accident reports at Arcosa Aggregates West, LLC. describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handtools (nonpowered) | 5 |
| Slip or fall of person | 4 |
| Handling of materials | 3 |
| Powered haulage | 2 |
| Striking or bumping | 2 |
| Machinery | 1 |
| Exploding vessels under pressure | 1 |
Equipment named in accident reports at Arcosa Aggregates West, LLC.
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 5 |
| Front-end loader | 2 |
| Bulldozer | 1 |
| Hand tools (powered) | 1 |
Commodities
| Main commodity | Open mines |
|---|---|
| Construction sand and gravel | 8 |
| Sand, common | 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.