1024 San Tan Valley
Metal/Non-Metal
San Tan Valley,
Pinal County,
AZ
·
Intermittent
MSHA Mine ID: 0203493
1024 San Tan Valley has $1K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 4
- Years on record
- 2025–2026
- Latest incident
- Jun 2026
Compliance record
MSHA citations since 2024
2
significant & substantial
$1,346
proposed penalties
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2024
n/a
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 43 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
1024 San Tan Valley has $1K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
6 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-23.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
| Quarter |
Hours worked |
Citations |
S&S |
Per 1M hrs |
| 2025 Q4 |
7,901 |
3 |
2 |
379.7 |
| 2025 Q3 |
11,024 |
0 |
0 |
0.0 |
| 2025 Q2 |
10,381 |
0 |
0 |
0.0 |
| 2025 Q1 |
9,084 |
2 |
0 |
220.2 |
| 2024 Q4 |
9,173 |
0 |
0 |
0.0 |
| 2024 Q3 |
9,924 |
1 |
0 |
100.8 |
| 2024 Q2 |
8,200 |
0 |
0 |
0.0 |
| 2024 Q1 |
2,812 |
0 |
0 |
0.0 |
No fatalities recorded at this mine.
Reportable incidents
4 on file
2026 · 1 incident
Arcosa Aggregates West, LLC · Struck by... (Not Elsewhere Classified)
The employee was cutting a hose with a utility knife when the blade passed through the hose and lacerated the employee's right forearm
2025 · 3 incidents
The employee was descending the ladder from the top deck of the cone when a hand slipped approximately midway down, causing them to fall to the deck below. Reported to management 10/30 when diagnosed with a hernia.
August 4, 2025
AZ · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
HANDLING OF MATERIALS
Arcosa Aggregates West, LLC · Caught in, under or between a moving and a stationary object
Employees thumb was pinched between stand and component while adjusting stand. Fracture and laceration to thumb.
May 5, 2025
AZ · Metal/Non-Metal
maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech
HANDTOOLS (NONPOWERED)
The employee had removed the pin on the tooth and was tapping it with a small sledgehammer on top to dislodge it from the shank. In the process of striking the tooth, a fragment of metal splintered off the tooth, striking the employee in the thigh.
For insurers, brokers, and safety consultants
The full compliance file on 1024 San Tan Valley
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and
docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF
with the underlying data as CSV.