Mining Incidents
MSHA mine register by county

Mines in Solano County, California

Solano County, California has 13 mines on MSHA's register: 2 active, 2 intermittent, 9 abandoned. 2 miners have died and 121 accidents have been reported at these mines between 1986 and 2024. Inspectors have issued 340 citations.

Every mine MSHA has registered in Solano County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in Solano County →

Mines on register
13
Active
2
Fatalities on record
2
Citations issued
340
0 underground · 13 surface · 0 facilities 0 coal · 13 metal and non-metal 2 intermittent 9 abandoned 121 reported accidents, 1986–2024
Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Solano County, California · Population 450,824
0.1%
Mining share of county employment
$99,994
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
Asta Construction Company Inc 2 0 0
CalMat Co 1 1 2
Basalt Rock Div-Dillingham Heavy Const Inc 1 0 0
Delta Associates 1 0 0
Dutra Materials 1 0 0
Fred Chisamore 1 0 0
Herman Supply Company Inc 1 0 0
Leslie Salt Company 1 0 0
Lind Marine Incorporated 1 1 0
Oliver De Silva Inc 1 0 0
Mines in Solano County13 on register
  1. Lake Herman Quarry
    Surface metal/non-metal · CalMat Co · MSHA ID 0400726
    Active
  2. Lind Marine Incorporated
    Surface metal/non-metal · Lind Marine Incorporated · MSHA ID 0405249
    Active
  3. DECKER ISLAND
    Surface metal/non-metal · Dutra Materials · MSHA ID 0405275
    Intermittent
  4. McCormick Pit
    Surface metal/non-metal · Asta Construction Company Inc · MSHA ID 0405190
    Abandoned
  5. State Pit
    Surface metal/non-metal · Asta Construction Co Inc · MSHA ID 0405641
    Intermittent
  6. Cordelia Quarry
    Surface metal/non-metal · Oliver De Silva Inc · MSHA ID 0400278
    Abandoned
  7. Fletcher Ranch Pit
    Surface metal/non-metal · Delta Associates · MSHA ID 0404426
    Abandoned
  8. Lake Herman Qy
    Surface metal/non-metal · W E Martin · MSHA ID 0400271
    Abandoned
  9. Lambe Pit
    Surface metal/non-metal · Herman Supply Company Inc · MSHA ID 0404427
    Abandoned
  10. Leslie Salt And Chemical Plant
    Surface metal/non-metal · Leslie Salt Company · MSHA ID 0404057
    Abandoned
  11. Lopez Road Quarry
    Surface metal/non-metal · Fred Chisamore · MSHA ID 0403774
    Abandoned
  12. Parrish Quarry
    Surface metal/non-metal · Basalt Rock Div-Dillingham Heavy Const Inc · MSHA ID 0400216
    Abandoned
  13. Potrero Hills Quarry
    Surface metal/non-metal · Syar Industries Inc · MSHA ID 0404423
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

Other counties in CaliforniaAll counties →
How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.