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Data / Mines / Minnesota / Sibley County

Mines in Sibley County, Minnesota: 10 open mines

Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.

MSHA lists 10 open mines in Sibley County, Minnesota, run by 4 operators and employing 23 people. Since January 1, 2022 its inspectors issued 40 citations and orders there with $6,307 in proposed penalties, and operators reported no injury or illness cases. The operators with the most open mines are Chard Grading & Excavation LLC; Cemstone Products Company; Wm Mueller & Sons Inc. Data from MSHA, November 6, 2026.

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Open mines
10
Operators
4
Employees
23
Intermittent
9
Active
1
Citations and orders since January 1, 2022
40
Significant and substantial
7 (17.5%)
Closure orders
0
High negligence or reckless
0
Proposed penalties
$6,307
Amount paid so far
$6,307
Inspections
53
Inspector hours on site
258
Citations per inspection
0.75 (all mines 2.30)
Accident reports
0
Injury and illness cases
0
Fatalities
0
Latest MSHA record
September 23, 2026

Operators with the most open mines in Sibley County, Minnesota

Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.

OperatorOpen minesEmployeesCitations since 2022Proposed penaltiesInjury cases
Chard Grading & Excavation LLC4109$1,3150
Cemstone Products Company3628$4,5330
Wm Mueller & Sons Inc252$3080
High Island Contracting LLC121$1510

Operators with the most citations in Sibley County, Minnesota

Citations and orders issued since January 1, 2022 at their open mines here.

OperatorOpen minesEmployeesCitations since 2022Proposed penaltiesInjury cases
Cemstone Products Company3628$4,5330
Chard Grading & Excavation LLC4109$1,3150
Wm Mueller & Sons Inc252$3080
High Island Contracting LLC121$1510

Mines with the most citations

Open mines, ranked by citations and orders since January 1, 2022.

MineOperatorCountyMain commodityEmployeesCitations since 2022
Henderson Pit 096Cemstone Products CompanySibley County, MNConstruction sand and gravel215
1840WP PortableCemstone Products CompanySibley County, MNConstruction sand and gravel29
Sibley Pit Wash Plant/ ScreenerChard Grading & Excavation LLCSibley County, MNSand, common36
GT205 Portable ScreenCemstone Products CompanySibley County, MNConstruction sand and gravel24
#2 Portable Screen/ConeChard Grading & Excavation LLCSibley County, MNConstruction sand and gravel33
#72 50 Ve Pioneer CrusherWm Mueller & Sons IncSibley County, MNConstruction sand and gravel32
Nagel PitHigh Island Contracting LLCSibley County, MNConstruction sand and gravel21
Superior Cone CrusherWm Mueller & Sons IncSibley County, MNConstruction sand and gravel20
#3 Portable ScreenerChard Grading & Excavation LLCSibley County, MNSand, common20
#4 Portable Screener & Wash PlantChard Grading & Excavation LLCSibley County, MNConstruction sand and gravel20

Main commodities

Main commodityOpen minesShare
Construction sand and gravel880%
Sand, common220%

Citations and injury cases by year

Calendar years since 2022; 2026 runs to the date of the MSHA files.

YearCitations and ordersSignificant and substantialProposed penaltiesInjury and illness cases
202262$9970
202391$1,2870
2024183$2,9660
202530$4530
202641$6040

Standards cited most at mines in Sibley County, Minnesota

Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.

StandardWhat the part coversCitations
30 CFR 50.30Reporting of accidents, injuries and illnesses8
30 CFR 56.12004Surface metal and nonmetal mines7
30 CFR 56.14107Surface metal and nonmetal mines5
30 CFR 56.12018Surface metal and nonmetal mines3
30 CFR 56.12032Surface metal and nonmetal mines3
30 CFR 56.4104Surface metal and nonmetal mines3
30 CFR 56.16005Surface metal and nonmetal mines2
30 CFR 56.20003Surface metal and nonmetal mines1
30 CFR 56.4201Surface metal and nonmetal mines1
30 CFR 56.12005Surface metal and nonmetal mines1
30 CFR 56.11002Surface metal and nonmetal mines1
30 CFR 56.14112Surface metal and nonmetal mines1
30 CFR 56.14132Surface metal and nonmetal mines1
30 CFR 56.14207Surface metal and nonmetal mines1
30 CFR 56.4402Surface metal and nonmetal mines1

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.