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MSHA public records

GREENHORN PIT & MILL

MSHA mine ID 0403138 · Nevada County, CA

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Operator: Hansen Brothers Enterprises
Controller: Jeff Hansen
Mine status: Active since Oct 22, 1987
Mine type: Surface
Primary commodity: Construction Sand and Gravel
Citations issued: Apr 3, 2025 to Oct 20, 2026

Past 24 months at a glance

Inspections: 8
Citations and orders: 3
Marked S&S by MSHA: 0

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MSHA enforcement updates for mining service teams. MineCitation is not legal advice.

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Assessed penalties

$151

Last 12 months: 2 citations and $0 in assessed penalties. 1 of 3 citations in the past 24 months have an MSHA assessment so far, first proposed at $151. 0 are marked contested. What these terms mean

How MSHA turns penalty points into a dollar figure: try the free MSHA penalty calculator.

Citations by standard

The 30 CFR section MSHA cited, most cited first.

Standard	Citations	Assessed	Latest
50.30(a)	1	$151	Apr 3, 2025
56.14132(a)	1	$0	Oct 20, 2026
56.15001	1	$0	Oct 20, 2026

Latest citations

Newest first.

Issued	Standard	Type	Assessed
Oct 20, 2026 No. 9890852 56.15001	56.15001	Citation	Not yet assessed
Oct 20, 2026 No. 9890851 56.14132(a)	56.14132(a)	Citation	Not yet assessed
Apr 3, 2025 No. 9689201 50.30(a)	50.30(a)	Citation	$151 Closed

Issued

Standard

Type

Assessed

Oct 20, 2026

No. 9890852

56.15001

Citation

Not yet assessed

Oct 20, 2026

No. 9890851

56.14132(a)

Citation

Not yet assessed

Apr 3, 2025

No. 9689201

50.30(a)

Citation

$151

Closed

Latest inspections

Regular Safety and Health Inspection
Event F022F62
Oct 20, 2026
Spot Inspection
Event F036E02
Sep 15, 2026
Verbal Hazard Complaint Inspections
Event F023BC0
Mar 31, 2026
Regular Safety and Health Inspection
Event F023BBF
Mar 30, 2026 to Mar 31, 2026
Regular Safety and Health Inspection
Event F022F44
Oct 22, 2025
Spot Inspection
Event F025DA5
Sep 10, 2025 to Sep 11, 2025
Regular Safety and Health Inspection
Event 6963983
Apr 2, 2025 to Apr 14, 2025
Regular Safety and Health Inspection
Event F014EA0
Nov 6, 2024

What these terms mean

S&S: Significant and substantial. MSHA marks a violation S&S when it is reasonably likely to cause a serious injury or illness.
Citations and orders: A citation records a violation an inspector found. An order is stronger, for example an order to withdraw miners from an area.
Assessed: The penalty MSHA has set for a citation, as it stands today.
Not yet assessed: MSHA has not set a penalty for this citation yet.
First proposed: The penalty MSHA first proposed, before any change from a contest or settlement.
Contested: The operator formally disputed the citation or its penalty. The amount can still change.
Printed: MSHA has mailed the penalty bill (proposed assessment) to the operator. It is not paid or final yet.
Received: MSHA has recorded that the operator received the penalty bill. It is not paid or final yet.
Billed: The date MSHA printed the penalty bill. The operator has 30 days from receiving it to contest the penalty.
Controller: The person or company that controls the mine operator, often a parent company.

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About this record

These figures come from public Mine Safety and Health Administration (MSHA) open government data on mines, inspections, violations and assessed violations. MineCitation copies them as published and does not add findings of its own.

A citation records a condition an MSHA inspector found. Operators can contest citations and penalties, and amounts can change after review. MineCitation is not legal advice.

See something that does not match MSHA's records? Email support@minecitation.com with the mine ID and we will check it against the source data.

S&S rate 0% of this mine's citations, compared with 18% across 353 cited surface metal and nonmetal mines in CA in the same 24 months.

GREENHORN PIT & MILL MSHA citations and inspections | MineCitation

MSHA data as of Oct 24, 2026 · Source: MSHA open data · Look up mine 0403138 on MSHA