Data / Mines / Wisconsin / Plant #26
Plant #26, Marathon County, Wisconsin: 1 MSHA citation
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Plant #26 is an intermittent construction sand and gravel surface mine in Marathon County, Wisconsin, operated by River City Stone Division Of Mathy Construction Co with 3 employees on MSHA's record (mine ID 4702928). Since January 1, 2022 MSHA inspectors issued 1 citation and orders there with $147 in proposed penalties, and 7 accident reports were filed there, with 7 injury or illness cases.
The request: Watch Plant #26 (MSHA mine ID 4702928) in Marathon County, Wisconsin: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4702928
- Status
- Intermittent since January 15, 2013
- Main commodity
- Construction sand and gravel
- Mine type
- Surface
- County
- Marathon County, Wisconsin
- Nearest town
- Mosinee
- Operator
- River City Stone Division Of Mathy Construction Co
- Parent company
- Mathy Construction Company
- Employees
- 3
- MSHA field office
- Marquette MI Field Office
- Citations and orders since January 1, 2022
- 1
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 0
- High negligence or reckless
- 1
- Proposed penalties
- $147
- Amount paid so far
- $147
- Inspections
- 8
- Inspector hours on site
- 66
- Citations per inspection
- 0.12 (all mines 2.30)
- Accident reports
- 7
- Injury and illness cases
- 7
- Fatalities
- 0
- Latest MSHA record
- July 8, 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 | 0 | 0 | $0 | 1 |
| 2023 | 0 | 0 | $0 | 2 |
| 2024 | 1 | 0 | $147 | 2 |
| 2025 | 0 | 0 | $0 | 1 |
| 2026 | 0 | 0 | $0 | 1 |
Standards cited most at Plant #26
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 56.15003 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Plant #26
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 5 |
| No lost time, or an occupational illness | 2 |
What the accident reports at Plant #26 describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Powered haulage | 2 |
| Machinery | 2 |
| Handling of materials | 2 |
| Slip or fall of person | 1 |
Equipment named in accident reports at Plant #26
| Equipment | Reports |
|---|---|
| Ore haulage trucks - off highway trucks | 2 |
| Hand tools (powered) | 2 |
Other open mines in Marathon County, Wisconsin
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| 3M, Greystone Plant | 3M Company | Marathon County, WI | Crushed, broken granite | 61 | 70 |
| 3M, Downtown Plant | 3M Company | Marathon County, WI | Crushed, broken granite | 114 | 45 |
| Ridgeview | Kafka Granite LLC | Marathon County, WI | Crushed, broken granite | 6 | 27 |
| Crusher No 1 | Paul Bugar Trucking Inc. | Marathon County, WI | Construction sand and gravel | 4 | 18 |
| Sandstone Quarry | Krukowski Stone Company Inc | Marathon County, WI | Dimension sandstone | 4 | 14 |
| Kafka Road Materials Crusher | Kafka Road Materials LLC | Marathon County, WI | Crushed, broken granite | 5 | 9 |
| Morgan Pit and Mill | Morgan Sand & Gravel LLC | Marathon County, WI | Construction sand and gravel | 2 | 9 |
| Mitch King Gravel, South Fork | Mitch King & Sons Gravel & Trucking Inc | Marathon County, WI | Construction sand and gravel | 2 | 9 |
| Worden Enterprises, LLC. | Worden Enterprises, LLC. | Marathon County, WI | Crushed, broken granite | 3 | 7 |
| Portable Plant #2 | R.C. Pavers, LLC | Marathon County, WI | Construction sand and gravel | 3 | 7 |
| Damitz Pit | Meverden Materials Inc. | Marathon County, WI | Construction sand and gravel | 2 | 7 |
| Mitch King Gravel | Mitch King & Sons Gravel & Trucking Inc | Marathon County, WI | Construction sand and gravel | 3 | 6 |
| Red Rock #1 Plant | Red Rock Granite, Inc. | Marathon County, WI | Crushed, broken granite | 6 | 5 |
| Rib Mt. | Meverden Materials Inc. | Marathon County, WI | Crushed, broken granite | 2 | 5 |
| Lippmann 170107-Portable | James Peterson Sons Inc | Marathon County, WI | Construction sand and gravel | 4 | 4 |
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.