Portable Sand Plant #4 Metal/Non-Metal
Tiefenthaler Ag-Lime, Inc
· Surface
Controlled by
Dale Tiefenthaler
Lanesboro,
Carroll County,
IA
·
Intermittent
MSHA Mine ID: 1302448
Watch this mine
Email me when a new MSHA incident is filed at Portable Sand Plant #4.
- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2016
11
citations
2
significant & substantial
$1,690
proposed penalties
$1,690
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 72 | 1 | 0 | 13888.9 |
| 2025 Q3 | 80 | 0 | 0 | 0.0 |
| 2025 Q2 | 187 | 4 | 1 | 21390.4 |
| 2025 Q1 | 233 | 0 | 0 | 0.0 |
| 2024 Q4 | 218 | 0 | 0 | 0.0 |
| 2024 Q3 | 223 | 0 | 0 | 0.0 |
| 2024 Q2 | 165 | 1 | 0 | 6060.6 |
| 2022 Q4 | 50 | 0 | 0 | 0.0 |
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.