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Data / Mines / California / Tehama County

Mines in Tehama County, California: 8 open mines

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

MSHA lists 8 open mines in Tehama County, California, run by 7 operators and employing 29 people. Since January 1, 2022 its inspectors issued 39 citations and orders there with $8,369 in proposed penalties, and operators reported 1 injury or illness case. The operators with the most open mines are Nordic Industries Inc; 7/11 Materials Inc; Valley Rock Products. Data from MSHA, November 6, 2026.

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Open mines
8
Operators
7
Employees
29
Active
4
Intermittent
4
Mines run by individuals, counted and not listed
1
Citations and orders since January 1, 2022
39
Significant and substantial
4 (10.3%)
Closure orders
0
High negligence or reckless
1
Proposed penalties
$8,369
Amount paid so far
$8,218
Inspections
64
Inspector hours on site
232
Citations per inspection
0.61 (all mines 2.30)
Accident reports
1
Injury and illness cases
1
Fatalities
0
Latest MSHA record
June 29, 2026

Operators with the most open mines in Tehama County, California

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

OperatorOpen minesEmployeesCitations since 2022Proposed penaltiesInjury cases
Nordic Industries Inc250$00
7/11 Materials Inc1414$4,7280
Valley Rock Products1210$1,4620
Thomes Creek Rock Company Inc199$1,3011
Franklin Construction Inc141$1510
Tehama Rock Products140$00

Operators with the most citations in Tehama County, California

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

OperatorOpen minesEmployeesCitations since 2022Proposed penaltiesInjury cases
7/11 Materials Inc1414$4,7280
Valley Rock Products1210$1,4620
Thomes Creek Rock Company Inc199$1,3011
Franklin Construction Inc141$1510
Nordic Industries Inc250$00
Tehama Rock Products140$00

Mines with the most citations

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

MineOperatorCountyMain commodityEmployeesCitations since 2022
Pine Creek Rock7/11 Materials IncTehama County, CAConstruction sand and gravel414
Valley Rock Products, Red Bluff PlantValley Rock ProductsTehama County, CAConstruction sand and gravel210
Thomes Creek Rock Co IncThomes Creek Rock Company IncTehama County, CAConstruction sand and gravel99
Deer Creek PlantFranklin Construction IncTehama County, CAConstruction sand and gravel41
Vina QuarryNordic Industries IncTehama County, CACrushed, broken stone40
Long Ranch QuarryTehama Rock ProductsTehama County, CACrushed, broken stone40
Paynes Creek QuarryNordic Industries IncTehama County, CAConstruction sand and gravel10

Main commodities

Main commodityOpen minesShare
Construction sand and gravel675%
Crushed, broken stone225%

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
2022113$1,4630
2023140$2,0020
202421$3,0920
202570$1,0570
202650$7551

Standards cited most at mines in Tehama County, California

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 56.14132Surface metal and nonmetal mines3
30 CFR 50.30Reporting of accidents, injuries and illnesses3
30 CFR 56.14107Surface metal and nonmetal mines3
30 CFR 56.12018Surface metal and nonmetal mines3
30 CFR 56.14100Surface metal and nonmetal mines2
30 CFR 56.14101Surface metal and nonmetal mines2
30 CFR 56.11001Surface metal and nonmetal mines2
30 CFR 56.12004Surface metal and nonmetal mines2
30 CFR 56.20003Surface metal and nonmetal mines2
30 CFR 56.15005Surface metal and nonmetal mines2
30 CFR 56.14110Surface metal and nonmetal mines1
30 CFR 56.16001Surface metal and nonmetal mines1
30 CFR 56.14115Surface metal and nonmetal mines1
30 CFR 56.11004Surface metal and nonmetal mines1
30 CFR 56.12020Surface metal and nonmetal mines1

Injury and illness cases at mines in Tehama County, California

Accident reports by degree of injury, as the operator reported them to MSHA.

DegreeCases
Days away from work or restricted activity1

What the accident reports at mines in Tehama County, California describe

Accident classification, as MSHA codes the circumstances that contributed most directly.

ClassificationReports
Slip or fall of person1

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.