Data / Mines / Iowa / Mielke's Quarry
Mielke's Quarry, Clayton County, Iowa: 9 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Mielke's Quarry is an active crushed, broken limestone surface mine in Clayton County, Iowa, operated by L J Crushing with 2 employees on MSHA's record (mine ID 1302508). Since January 1, 2022 MSHA inspectors issued 9 citations and orders there with $1,293 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Mielke's Quarry (MSHA mine ID 1302508) in Clayton County, Iowa: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 1302508
- Status
- Active since October 16, 2026
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Clayton County, Iowa
- Nearest town
- McGregor
- Operator
- L J Crushing
- Employees
- 2
- MSHA field office
- Fort Dodge IA Field Office
- Citations and orders since January 1, 2022
- 9
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $1,293
- Amount paid so far
- $1,293
- Inspections
- 7
- Inspector hours on site
- 34
- Citations per inspection
- 1.29 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- June 25, 2026
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 | $399 | 0 |
| 2024 | 3 | 0 | $441 | 0 |
| 2025 | 1 | 0 | $151 | 0 |
| 2026 | 2 | 0 | $302 | 0 |
Standards cited most at Mielke's Quarry
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 50.30 | Reporting of accidents, injuries and illnesses | 3 |
| 30 CFR 56.1000 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4402 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 1 |
Other open mines in Clayton County, Iowa
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Pattison Company, LLC | Pattison Company, LLC | Clayton County, IA | Sand, industrial | 139 | 190 |
| Portable Sand 2 | Dyersville Ready Mix Inc | Clayton County, IA | Construction sand and gravel | 2 | 15 |
| Portable Wash Plant | C.J. Moyna & Sons LLC | Clayton County, IA | Construction sand and gravel | 2 | 7 |
| Portable Plant #2 | C.J. Moyna & Sons LLC | Clayton County, IA | Crushed, broken limestone | 4 | 4 |
| Recker Rock Products, LLC | Recker Rock Products, LLC | Clayton County, IA | Construction sand and gravel | 2 | 3 |
| Portable Grizzly | C.J. Moyna & Sons LLC | Clayton County, IA | Sand, industrial | 2 | 1 |
| Portable Grizzly #2 | C.J. Moyna & Sons LLC | Clayton County, IA | Crushed, broken limestone | 2 | 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.