Data / Mines / Hawaii / Waikapu Quarry
Waikapu Quarry, Maui County, Hawaii: 11 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Waikapu Quarry is an active crushed, broken stone surface mine in Maui County, Hawaii, operated by Hawaiian Cement with 5 employees on MSHA's record (mine ID 5100171). Since January 1, 2022 MSHA inspectors issued 11 citations and orders there with $7,788 in proposed penalties, and 1 accident report was filed there, with 1 injury or illness case.
The request: Watch Waikapu Quarry (MSHA mine ID 5100171) in Maui County, Hawaii: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 5100171
- Status
- Active since October 15, 2004
- Main commodity
- Crushed, broken stone
- Mine type
- Surface
- County
- Maui County, Hawaii
- Nearest town
- Wailuku
- Operator
- Hawaiian Cement
- Parent company
- Knife River Corporation
- Employees
- 5
- MSHA field office
- San Juan PR Field Office
- Citations and orders since January 1, 2022
- 11
- Significant and substantial
- 5 (45.5%)
- Closure orders
- 1
- High negligence or reckless
- 3
- Proposed penalties
- $7,788
- Amount paid so far
- $7,788
- Inspections
- 12
- Inspector hours on site
- 111
- Citations per inspection
- 0.92 (all mines 2.30)
- Accident reports
- 1
- Injury and illness cases
- 1
- Fatalities
- 0
- Latest MSHA record
- October 28, 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 | 1 | 0 | $133 | 1 |
| 2024 | 1 | 0 | $147 | 0 |
| 2025 | 2 | 0 | $302 | 0 |
| 2026 | 7 | 5 | $7,206 | 0 |
Standards cited most at Waikapu 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 56.3130 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.3401 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.3131 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 1 |
Injury and illness cases at Waikapu Quarry
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 1 |
What the accident reports at Waikapu Quarry describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 1 |
Equipment named in accident reports at Waikapu Quarry
| Equipment | Reports |
|---|---|
| Screen | 1 |
Other open mines in Maui County, Hawaii
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Puunene Quarry | Hawaiian Cement | Maui County, HI | Crushed, broken stone | 14 | 13 |
| Molokai Quarry | Manawainui Molokai Quarry LLC | Maui County, HI | Crushed, broken stone | 7 | 11 |
| Puunene Camp 10 Quarry | Kahala Concrete, LLC | Maui County, HI | Crushed, broken traprock | 20 | 5 |
| Gbi #1 K0 232 Metso LT120 | Goodfellow Brothers Inc | Maui County, HI | Construction sand and gravel | 3 | 1 |
| Gbi #13, K0 243 Metso LT 120 | Goodfellow Brothers Inc | Maui County, HI | Construction sand and gravel | 3 | 1 |
| Kihei Base Yard | Goodfellow Brothers Inc | Maui County, HI | Sand, common | 3 | 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.