Data / Mines / Wisconsin / Waukesha County
Mines in Waukesha County, Wisconsin: 34 open mines
MSHA lists 34 open mines in Waukesha County, Wisconsin, run by 9 operators and employing 158 people. Since January 1, 2022 its inspectors issued 347 citations and orders there with $56,137 in proposed penalties, and operators reported 53 injury or illness cases. The operators with the most open mines are Payne & Dolan Inc; Johnson Sand & Gravel Inc; Lannon Stone Products Inc. Data from MSHA, November 6, 2026.
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- Open mines
- 34
- Operators
- 9
- Employees
- 158
- Active
- 18
- Intermittent
- 15
- Temporarily Idled
- 1
- Citations and orders since January 1, 2022
- 347
- Significant and substantial
- 22 (6.3%)
- Closure orders
- 2
- High negligence or reckless
- 16
- Proposed penalties
- $56,137
- Amount paid so far
- $53,117
- Inspections
- 289
- Inspector hours on site
- 2,018
- Citations per inspection
- 1.20 (all mines 2.30)
- Accident reports
- 53
- Injury and illness cases
- 53
- Fatalities
- 0
- Latest MSHA record
- October 30, 2026
Operators with the most open mines in Waukesha 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 |
|---|---|---|---|---|---|
| Payne & Dolan Inc | 10 | 48 | 69 | $13,033 | 15 |
| Johnson Sand & Gravel Inc | 7 | 17 | 26 | $3,768 | 4 |
| Lannon Stone Products Inc | 6 | 53 | 117 | $19,282 | 28 |
| Halquist Stone Company Inc | 5 | 22 | 33 | $4,471 | 1 |
| Genesee Aggregate Corp. | 2 | 6 | 27 | $3,937 | 1 |
| Monacelli Stone Company Inc | 1 | 5 | 37 | $6,634 | 3 |
| Amrize Mid-America Inc. | 1 | 4 | 24 | $2,992 | 0 |
| Lemke Stone Inc | 1 | 2 | 12 | $1,722 | 1 |
| The Sand Pit Inc | 1 | 1 | 2 | $298 | 0 |
Operators with the most citations in Waukesha 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 |
|---|---|---|---|---|---|
| Lannon Stone Products Inc | 6 | 53 | 117 | $19,282 | 28 |
| Payne & Dolan Inc | 10 | 48 | 69 | $13,033 | 15 |
| Monacelli Stone Company Inc | 1 | 5 | 37 | $6,634 | 3 |
| Halquist Stone Company Inc | 5 | 22 | 33 | $4,471 | 1 |
| Genesee Aggregate Corp. | 2 | 6 | 27 | $3,937 | 1 |
| Johnson Sand & Gravel Inc | 7 | 17 | 26 | $3,768 | 4 |
| Amrize Mid-America Inc. | 1 | 4 | 24 | $2,992 | 0 |
| Lemke Stone Inc | 1 | 2 | 12 | $1,722 | 1 |
| The Sand Pit Inc | 1 | 1 | 2 | $298 | 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 |
|---|---|---|---|---|---|
| Sussex Quarry | Lannon Stone Products Inc | Waukesha County, WI | Crushed, broken limestone | 20 | 40 |
| Monacelli Stone Company Inc | Monacelli Stone Company Inc | Waukesha County, WI | Crushed, broken limestone | 5 | 37 |
| West Quarry | Lannon Stone Products Inc | Waukesha County, WI | Crushed, broken limestone | 17 | 35 |
| Waukesha Lime & Stone | Payne & Dolan Inc | Waukesha County, WI | Crushed, broken limestone | 25 | 34 |
| Amrize Colgate Pit Yard 1 | Amrize Mid-America Inc. | Waukesha County, WI | Construction sand and gravel | 4 | 24 |
| Lisbon Pit | Lannon Stone Products Inc | Waukesha County, WI | Construction sand and gravel | 6 | 19 |
| Genesee Pit & Mill | Genesee Aggregate Corp. | Waukesha County, WI | Construction sand and gravel | 3 | 18 |
| Lannon Quarry | Lannon Stone Products Inc | Waukesha County, WI | Crushed, broken limestone | 6 | 17 |
| North Lake Pit | Halquist Stone Company Inc | Waukesha County, WI | Construction sand and gravel | 6 | 17 |
| PC10 | Payne & Dolan Inc | Waukesha County, WI | Construction sand and gravel | 2 | 14 |
| Portable #1 | Johnson Sand & Gravel Inc | Waukesha County, WI | Construction sand and gravel | 4 | 12 |
| Lemke Stone Inc | Lemke Stone Inc | Waukesha County, WI | Dimension limestone | 2 | 12 |
| Halquist Stone Company Cawley's Quarry | Halquist Stone Company Inc | Waukesha County, WI | Crushed, broken limestone | 3 | 10 |
| Ottawa Sand & Gravel | Genesee Aggregate Corp. | Waukesha County, WI | Construction sand and gravel | 3 | 9 |
| Portable #2 | Johnson Sand & Gravel Inc | Waukesha County, WI | Construction sand and gravel | 3 | 6 |
| Dousman Pit | Lannon Stone Products Inc | Waukesha County, WI | Construction sand and gravel | 2 | 6 |
| PC1 | Payne & Dolan Inc | Waukesha County, WI | Construction sand and gravel | 5 | 5 |
| PC9 | Payne & Dolan Inc | Waukesha County, WI | Construction sand and gravel | 2 | 5 |
| Portable No 8 | Johnson Sand & Gravel Inc | Waukesha County, WI | Construction sand and gravel | 2 | 5 |
| Halquist Stone Company-Lannon Quarry | Halquist Stone Company Inc | Waukesha County, WI | Crushed, broken limestone | 9 | 3 |
| PW4 | Payne & Dolan Inc | Waukesha County, WI | Crushed, broken limestone | 2 | 3 |
| PC4 | Payne & Dolan Inc | Waukesha County, WI | Construction sand and gravel | 3 | 2 |
| PW10 | Payne & Dolan Inc | Waukesha County, WI | Construction sand and gravel | 3 | 2 |
| Halquist Stone Company-Ideal Quarry | Halquist Stone Company Inc | Waukesha County, WI | Crushed, broken limestone | 2 | 2 |
| PW1 | Payne & Dolan Inc | Waukesha County, WI | Crushed, broken limestone | 2 | 2 |
| The Sand Pit Inc | The Sand Pit Inc | Waukesha County, WI | Construction sand and gravel | 1 | 2 |
| Portable #3 | Johnson Sand & Gravel Inc | Waukesha County, WI | Construction sand and gravel | 3 | 1 |
| PW5 | Payne & Dolan Inc | Waukesha County, WI | Crushed, broken limestone | 2 | 1 |
| DL-2 | Payne & Dolan Inc | Waukesha County, WI | Construction sand and gravel | 2 | 1 |
| JSG Portable No 9 | Johnson Sand & Gravel Inc | Waukesha County, WI | Construction sand and gravel | 2 | 1 |
| Willow Springs Quarry | Halquist Stone Company Inc | Waukesha County, WI | Crushed, broken limestone | 2 | 1 |
| JSG Portable No 10 | Johnson Sand & Gravel Inc | Waukesha County, WI | Construction sand and gravel | 1 | 1 |
| JSG Portable No 11 | Johnson Sand & Gravel Inc | Waukesha County, WI | Construction sand and gravel | 2 | 0 |
| Mobile Crushing Plant | Lannon Stone Products Inc | Waukesha County, WI | Crushed, broken limestone | 2 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 20 | 58.8% |
| Crushed, broken limestone | 13 | 38.2% |
| Dimension limestone | 1 | 2.9% |
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 | 59 | 4 | $8,609 | 10 |
| 2023 | 96 | 7 | $15,193 | 14 |
| 2024 | 99 | 6 | $16,275 | 16 |
| 2025 | 34 | 5 | $8,510 | 5 |
| 2026 | 59 | 0 | $7,550 | 8 |
Standards cited most at mines in Waukesha 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 | 34 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 30 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 26 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 20 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 19 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 12 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 10 |
| 30 CFR 47.44 | Hazard communication | 10 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 8 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 8 |
| 30 CFR 56.12030 | Surface metal and nonmetal mines | 7 |
Injury and illness cases at mines in Waukesha County, Wisconsin
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 30 |
| No lost time, or an occupational illness | 23 |
What the accident reports at mines in Waukesha County, Wisconsin describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 26 |
| Slip or fall of person | 12 |
| Machinery | 6 |
| Handtools (nonpowered) | 4 |
| Powered haulage | 3 |
| Exploding vessels under pressure | 1 |
| Disorders (physical agents) | 1 |
Equipment named in accident reports at mines in Waukesha County, Wisconsin
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 4 |
| Welding machine | 3 |
| Front-end loader | 3 |
| Trucks | 2 |
| Crusher | 2 |
| Conveyor | 2 |
| Dimension stone machinery | 2 |
| Shovel | 2 |
| Hand tools (powered) | 1 |
| Man lift | 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.