Data / Mines / Kentucky / Aa Limestone
Aa Limestone, Carter County, Kentucky: 26 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Aa Limestone is an active crushed, broken limestone surface mine in Carter County, Kentucky, operated by Heidelberg Materials Midwest Agg, Inc. with 12 employees on MSHA's record (mine ID 1517923). Since January 1, 2022 MSHA inspectors issued 26 citations and orders there with $5,553 in proposed penalties, and 2 accident reports were filed there, with 2 injury or illness cases.
The request: Watch Aa Limestone (MSHA mine ID 1517923) in Carter County, Kentucky: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 1517923
- Status
- Active since October 1, 1998
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Carter County, Kentucky
- Nearest town
- Grayson
- Operator
- Heidelberg Materials Midwest Agg, Inc.
- Parent company
- Heidelberg Materials AG
- Employees
- 12
- MSHA field office
- Hazard KY Field Office
- Citations and orders since January 1, 2022
- 26
- Significant and substantial
- 4 (15.4%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $5,553
- Amount paid so far
- $4,938
- Inspections
- 13
- Inspector hours on site
- 264
- Citations per inspection
- 2.00 (all mines 2.30)
- Accident reports
- 2
- Injury and illness cases
- 2
- Fatalities
- 0
- Latest MSHA record
- July 1, 2026
- Citations issued to contractors here
- 3 ($824 proposed)
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 | 8 | 1 | $1,423 | 1 |
| 2023 | 6 | 1 | $1,846 | 1 |
| 2024 | 2 | 0 | $298 | 0 |
| 2025 | 5 | 0 | $755 | 0 |
| 2026 | 5 | 2 | $1,231 | 0 |
Standards cited most at Aa Limestone
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 56.14132 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 1 |
| 30 CFR 41.12 | Notice of legal identity | 1 |
| 30 CFR 46.9 | Training at sand, gravel and surface stone mines | 1 |
| 30 CFR 56.4200 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.13011 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12065 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Aa Limestone
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 2 |
What the accident reports at Aa Limestone describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Striking or bumping | 1 |
| Slip or fall of person | 1 |
Other open mines in Carter County, Kentucky
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Buffalo Valley Resources LLC | Buffalo Valley Resources LLC | Carter County, KY | Crushed, broken limestone | 15 | 44 |
| Valley Stone | Mountain Materials Inc | Carter County, KY | Crushed, broken limestone | 12 | 25 |
| Brushy Creek Stone | Mountain Materials Inc | Carter County, KY | Crushed, broken limestone | 15 | 14 |
| Messer Clay Company | Messer Clay Company | Carter County, KY | Common clays | 3 | 3 |
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.