Data / Mines / Wisconsin / Fond Du Lac County
Mines in Fond Du Lac County, Wisconsin: 26 open mines
MSHA lists 26 open mines in Fond Du Lac County, Wisconsin, run by 15 operators and employing 426 people. Since January 1, 2022 its inspectors issued 451 citations and orders there with $303,724 in proposed penalties, and operators reported 44 injury or illness cases, 1 of them fatal. The operators with the most open mines are Eden Stone Co., LLC; J&J Baumhardt Aggregates; Kartechner Brothers, LLC.. Data from MSHA, November 6, 2026.
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- Open mines
- 26
- Operators
- 15
- Employees
- 426
- Active
- 14
- Intermittent
- 12
- Citations and orders since January 1, 2022
- 451
- Significant and substantial
- 78 (17.3%)
- Closure orders
- 3
- High negligence or reckless
- 44
- Proposed penalties
- $303,724
- Amount paid so far
- $228,291
- Inspections
- 228
- Inspector hours on site
- 1,792
- Citations per inspection
- 1.98 (all mines 2.30)
- Accident reports
- 44
- Injury and illness cases
- 44
- Fatalities
- 1
- Latest MSHA record
- October 28, 2026
Operators with the most open mines in Fond Du Lac County, Wisconsin
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Eden Stone Co., LLC | 4 | 93 | 99 | $187,795 | 13 |
| J&J Baumhardt Aggregates | 3 | 4 | 21 | $3,669 | 0 |
| Kartechner Brothers, LLC. | 3 | 9 | 10 | $1,498 | 0 |
| Oakfield Stone Company, Inc. | 2 | 26 | 92 | $44,835 | 1 |
| R & R Wash Materials Inc | 2 | 5 | 51 | $11,863 | 1 |
| Halquist Stone Company Inc | 2 | 47 | 9 | $1,831 | 11 |
| Buechel Stone Corp | 2 | 81 | 7 | $1,264 | 1 |
| Graymont Western Lime Inc. | 1 | 42 | 45 | $10,532 | 12 |
| Fond Du Lac Stone Inc | 1 | 34 | 37 | $21,292 | 0 |
| Rademann Stone & Landscape Company, Inc. | 1 | 52 | 36 | $10,374 | 2 |
| Badger Mining Corporation | 1 | 23 | 14 | $4,241 | 3 |
| Quality Aggregate | 1 | 4 | 14 | $2,062 | 0 |
| HH&J Aggregate Landscape Supply Inc. | 1 | 2 | 9 | $1,419 | 0 |
| Carew Concrete & Supply Company Inc | 1 | 2 | 4 | $596 | 0 |
| Baumhardt Sand & Gravel Company | 1 | 2 | 3 | $453 | 0 |
Operators with the most citations in Fond Du Lac County, Wisconsin
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Eden Stone Co., LLC | 4 | 93 | 99 | $187,795 | 13 |
| Oakfield Stone Company, Inc. | 2 | 26 | 92 | $44,835 | 1 |
| R & R Wash Materials Inc | 2 | 5 | 51 | $11,863 | 1 |
| Graymont Western Lime Inc. | 1 | 42 | 45 | $10,532 | 12 |
| Fond Du Lac Stone Inc | 1 | 34 | 37 | $21,292 | 0 |
| Rademann Stone & Landscape Company, Inc. | 1 | 52 | 36 | $10,374 | 2 |
| J&J Baumhardt Aggregates | 3 | 4 | 21 | $3,669 | 0 |
| Badger Mining Corporation | 1 | 23 | 14 | $4,241 | 3 |
| Quality Aggregate | 1 | 4 | 14 | $2,062 | 0 |
| Kartechner Brothers, LLC. | 3 | 9 | 10 | $1,498 | 0 |
| Halquist Stone Company Inc | 2 | 47 | 9 | $1,831 | 11 |
| HH&J Aggregate Landscape Supply Inc. | 1 | 2 | 9 | $1,419 | 0 |
| Buechel Stone Corp | 2 | 81 | 7 | $1,264 | 1 |
| Carew Concrete & Supply Company Inc | 1 | 2 | 4 | $596 | 0 |
| Baumhardt Sand & Gravel Company | 1 | 2 | 3 | $453 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Fond Du Lac | Oakfield Stone Company, Inc. | Fond Du Lac County, WI | Dimension limestone | 24 | 80 |
| Eden Facility | Eden Stone Co., LLC | Fond Du Lac County, WI | Dimension limestone | 79 | 77 |
| Eden Quarry & Mill | Graymont Western Lime Inc. | Fond Du Lac County, WI | Lime | 42 | 45 |
| Fond Du Lac Stone, Inc. | Fond Du Lac Stone Inc | Fond Du Lac County, WI | Dimension limestone | 34 | 37 |
| County Road B Quarry | Rademann Stone & Landscape Company, Inc. | Fond Du Lac County, WI | Dimension stone | 52 | 36 |
| Portable Plant #2 | R & R Wash Materials Inc | Fond Du Lac County, WI | Construction sand and gravel | 2 | 31 |
| Portable Plant #1 | R & R Wash Materials Inc | Fond Du Lac County, WI | Construction sand and gravel | 3 | 20 |
| Fairwater Plant | Badger Mining Corporation | Fond Du Lac County, WI | Sand, industrial | 23 | 14 |
| Plant 2 | Quality Aggregate | Fond Du Lac County, WI | Crushed, broken stone | 4 | 14 |
| Highway 41 Quarry | Eden Stone Co., LLC | Fond Du Lac County, WI | Dimension limestone | 3 | 12 |
| Oakfield Quarry | Oakfield Stone Company, Inc. | Fond Du Lac County, WI | Dimension limestone | 2 | 12 |
| Screening Plant-Rental | J&J Baumhardt Aggregates | Fond Du Lac County, WI | Sand, industrial | 2 | 11 |
| Hamilton Quarry | Halquist Stone Company Inc | Fond Du Lac County, WI | Dimension limestone | 42 | 9 |
| Elbe Pit | HH&J Aggregate Landscape Supply Inc. | Fond Du Lac County, WI | Construction sand and gravel | 2 | 9 |
| Niagara Stone | Eden Stone Co., LLC | Fond Du Lac County, WI | Dimension limestone | 8 | 8 |
| Oakfield | Buechel Stone Corp | Fond Du Lac County, WI | Dimension stone | 14 | 7 |
| Pioneer 2854 Portable Jaw Crusher | Kartechner Brothers, LLC. | Fond Du Lac County, WI | Crushed, broken stone | 2 | 5 |
| Portable Wash Plant | J&J Baumhardt Aggregates | Fond Du Lac County, WI | Construction sand and gravel | 1 | 5 |
| Portable Screening Plant | J&J Baumhardt Aggregates | Fond Du Lac County, WI | Construction sand and gravel | 1 | 5 |
| Carew-Eden Pit | Carew Concrete & Supply Company Inc | Fond Du Lac County, WI | Construction sand and gravel | 2 | 4 |
| Hazemag Impactor | Kartechner Brothers, LLC. | Fond Du Lac County, WI | Crushed, broken stone | 2 | 4 |
| Portable Crusher | Baumhardt Sand & Gravel Company | Fond Du Lac County, WI | Construction sand and gravel | 2 | 3 |
| Oakfield Quarry | Eden Stone Co., LLC | Fond Du Lac County, WI | Dimension limestone | 3 | 2 |
| Kpi, Jci Plant | Kartechner Brothers, LLC. | Fond Du Lac County, WI | Construction sand and gravel | 5 | 1 |
| Buechel Stone Corp, FDL | Buechel Stone Corp | Fond Du Lac County, WI | Dimension limestone | 67 | 0 |
| Fond Du Lac Stone Quarry | Halquist Stone Company Inc | Fond Du Lac County, WI | Dimension limestone | 5 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Dimension limestone | 10 | 38.5% |
| Construction sand and gravel | 8 | 30.8% |
| Crushed, broken stone | 3 | 11.5% |
| Sand, industrial | 2 | 7.7% |
| Dimension stone | 2 | 7.7% |
| Lime | 1 | 3.8% |
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 | 64 | 9 | $14,723 | 13 |
| 2023 | 85 | 13 | $29,038 | 11 |
| 2024 | 99 | 20 | $169,956 | 7 |
| 2025 | 131 | 25 | $53,764 | 3 |
| 2026 | 72 | 11 | $36,243 | 10 |
Standards cited most at mines in Fond Du Lac County, Wisconsin
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 56.14100 | Surface metal and nonmetal mines | 67 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 23 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 21 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 21 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 18 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 17 |
| 30 CFR 56.14130 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 13 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 13 |
| 30 CFR 47.44 | Hazard communication | 12 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 10 |
Injury and illness cases at mines in Fond Du Lac County, Wisconsin
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Fatality | 1 |
| Days away from work or restricted activity | 27 |
| No lost time, or an occupational illness | 16 |
What the accident reports at mines in Fond Du Lac County, Wisconsin describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 15 |
| Handtools (nonpowered) | 7 |
| Slip or fall of person | 7 |
| Powered haulage | 6 |
| Machinery | 5 |
| Disorders (repeated trauma) | 3 |
| Other | 1 |
Equipment named in accident reports at mines in Fond Du Lac County, Wisconsin
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 7 |
| Front-end loader | 4 |
| Dimension stone machinery | 2 |
| Conveyor | 2 |
| Hand tools (powered) | 2 |
| Forklift | 1 |
| Carriage-mounted drills | 1 |
Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. 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.