Data / Mines / Washington / Stevens County
Mines in Stevens County, Washington: 11 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 11 open mines in Stevens County, Washington, run by 8 operators and employing 87 people. Since January 1, 2022 its inspectors issued 124 citations and orders there with $35,346 in proposed penalties, and operators reported 13 injury or illness cases. The operators with the most open mines are Interstate Concrete and Asphalt Company; Whitestone Calcium Inc; Lane Mt. Silica Co.. Data from MSHA, November 6, 2026.
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- Open mines
- 11
- Operators
- 8
- Employees
- 87
- Intermittent
- 9
- Active
- 2
- Mines run by individuals, counted and not listed
- 2
- Citations and orders since January 1, 2022
- 124
- Significant and substantial
- 7 (5.6%)
- Closure orders
- 0
- High negligence or reckless
- 5
- Proposed penalties
- $35,346
- Amount paid so far
- $25,171
- Inspections
- 82
- Inspector hours on site
- 452
- Citations per inspection
- 1.51 (all mines 2.30)
- Accident reports
- 13
- Injury and illness cases
- 13
- Fatalities
- 0
- Latest MSHA record
- September 8, 2026
Operators with the most open mines in Stevens County, Washington
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 |
|---|---|---|---|---|---|
| Interstate Concrete and Asphalt Company | 3 | 12 | 16 | $2,368 | 0 |
| Whitestone Calcium Inc | 2 | 16 | 7 | $3,803 | 3 |
| Lane Mt. Silica Co. | 1 | 39 | 82 | $26,376 | 7 |
| Allied Minerals Co | 1 | 2 | 6 | $890 | 0 |
| Hemphill Brothers Inc | 1 | 7 | 2 | $284 | 3 |
| Stevens County Road Dept | 1 | 5 | 0 | $0 | 0 |
Operators with the most citations in Stevens County, Washington
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Lane Mt. Silica Co. | 1 | 39 | 82 | $26,376 | 7 |
| Interstate Concrete and Asphalt Company | 3 | 12 | 16 | $2,368 | 0 |
| Whitestone Calcium Inc | 2 | 16 | 7 | $3,803 | 3 |
| Allied Minerals Co | 1 | 2 | 6 | $890 | 0 |
| Hemphill Brothers Inc | 1 | 7 | 2 | $284 | 3 |
| Stevens County Road Dept | 1 | 5 | 0 | $0 | 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 |
|---|---|---|---|---|---|
| Lane Mtn Silica Quarry & Mill | Lane Mt. Silica Co. | Stevens County, WA | Ground silica | 39 | 82 |
| Dawson Sand & Gravel | Interstate Concrete and Asphalt Company | Stevens County, WA | Construction sand and gravel | 4 | 8 |
| Interstate Concrete and Asphalt-Hawkins | Interstate Concrete and Asphalt Company | Stevens County, WA | Construction sand and gravel | 6 | 6 |
| Plant 1 | Allied Minerals Co | Stevens County, WA | Crushed, broken limestone | 2 | 6 |
| Chewelah Plant | Whitestone Calcium Inc | Stevens County, WA | Dimension marble | 11 | 4 |
| Kelly Hill Quarry | Whitestone Calcium Inc | Stevens County, WA | Crushed, broken limestone | 5 | 3 |
| Northport Limestone | Hemphill Brothers Inc | Stevens County, WA | Crushed, broken limestone | 7 | 2 |
| Portable 1 | Interstate Concrete and Asphalt Company | Stevens County, WA | Crushed, broken stone | 2 | 2 |
| Brown's Quarry | Stevens County Road Dept | Stevens County, WA | Construction sand and gravel | 5 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 4 | 36.4% |
| Crushed, broken limestone | 3 | 27.3% |
| Crushed, broken stone | 2 | 18.2% |
| Ground silica | 1 | 9.1% |
| Dimension marble | 1 | 9.1% |
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 | 16 | 1 | $2,637 | 4 |
| 2023 | 26 | 1 | $7,949 | 2 |
| 2024 | 18 | 3 | $9,229 | 3 |
| 2025 | 34 | 2 | $8,079 | 2 |
| 2026 | 30 | 0 | $7,452 | 2 |
Standards cited most at mines in Stevens County, Washington
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 | 10 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 10 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 5 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 5 |
| 30 CFR 56.15001 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 4 |
| 30 CFR 47.41 | Hazard communication | 3 |
| 30 CFR 56.14103 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 3 |
Injury and illness cases at mines in Stevens County, Washington
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 6 |
| No lost time, or an occupational illness | 7 |
What the accident reports at mines in Stevens County, Washington describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 4 |
| Disorders (repeated trauma) | 4 |
| Machinery | 2 |
| Slip or fall of person | 1 |
| Other | 1 |
| Powered haulage | 1 |
Equipment named in accident reports at mines in Stevens County, Washington
| Equipment | Reports |
|---|---|
| Milling machinery | 1 |
| Bench grinder | 1 |
| Ore haulage trucks - off highway trucks | 1 |
| Front-end loader | 1 |
| Crusher | 1 |
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.