Nonmetal Operator Mining Facts - 2007 (HTML)
DHHS (NIOSH) Publication No. 2009–161
In 2007, a total of 725 nonmetal mining operations reported employment to the Mine Safety and Health Administration (MSHA).  Nonmetal mines comprised 4.9% of all mining operations.
- Mines producing common clay comprised 25.4% (n=184) of all nonmetal mining operations.
- Nonmetal mining operations were located in all states and territories except Alaska, Delaware, Hawaii, Maine, New Hampshire, Rhode Island, Puerto Rico, and the U.S. Virgin Islands.
- Within the mining sectors,  nonmetal mine operator employees accounted for 6.9% of all employee hours reported.
- Employee hours were reported at underground (10.7%) and surface (89.3%) work locations. 
|Commodity and Type|
|Sand and Gravel Operator||75.0||78.9||78.1||77.0||75.3||74.8||76.6||78.4||79.6||76.7|
There was one work-related fatality in nonmetal mines in 2007. There were no fatalities in 2006.
Nonfatal Lost-time Injuries
There were 508 nonfatal lost-time injuries (91 at underground and 417 at surface work locations) among nonmetal operator employees occurring at an overall rate of 2.5 injuries per 100 FTE employees. A total of 26,954 days lost from work,  resulted from these injuries.
- The underground nonfatal lost-time injury rate was greater than the surface injury rate (3.7 vs. 2.4 per 100 FTE workers).
- In 2007, the most frequent classification of nonfatal lost-time injuries involved handling materials (n=182; 35.8%).
- Sprains and strains were the most frequently reported nature of injury (n=231; 45.5%).
- The back was the most frequently reported body part injured (n=84; 16.5%) and accounted for 3,864 days lost from work.
|Slip or fall of person||129||25.4|
Mine operator characteristics, 2007
|Commodity and Type of Employer||Underground Mining Operations ||Surface Mining Operations ||Total Mining Operations |
|Sand & Gravel Operator||Not applicable||7,199||7,199|
Contractor characteristics, 2007
|Commodity and Type of Employer||Number of Companies|
Employment characteristics, 2007
|Commodity and Type of Employer||Underground Employees ||Surface Employees ||Total Employees ||Underground FTE Employees ||Surface FTE Employees ||Total FTE Employees |
|Sand & Gravel Operator||Not applicable||45,761||45,761||Not applicable||38,340||38,340|
Mining Occupational Fatalities (per 100,000 FTE employees), 2007
|Commodity and Type of Employer||Underground Fatalities||Underground Fatality Rate||Surface Fatalities||Surface Fatality Rate||Fatalities||Fatality Rate|
|Sand & Gravel Operator||Not applicable||Not applicable||5||15.0||5||15.0|
Nonfatal Lost-time Injuries (per 100 FTE employees), 2007
|Commodity and Type of Employer||Underground Injuries||Underground Injury Rate||Surface Injuries||Surface Injury Rate||Injuries||Injury Rate|
|Sand & Gravel Operator||Not applicable||Not applicable||657||2.0||657||2.0|
Data source: Publicly released data files of employment and accident/injury/illness collected by MSHA under 30 CFR 50.
Notes: All analyses of accident data exclude office employees. Occupational fatalities exclude all cases under 17 years of age. Further statistical methodology is available on the NIOSH Internet. Data in the above tables may not add to totals shown because of independent rounding. Caution should be used when interpreting rates based on a small number of events.
- Mines at which only independent contractors were working did not show any employment and were not counted.
- Average number of employees working at individual mines during calendar quarters of active operations (includes office workers).
- Full-time equivalent employees computed using reported employee hours (2,000 hours = 1 FTE).
- Mining sectors include coal operators, metal operators, nonmetal operators, stone operators, sand and gravel operators, coal contractors, and noncoal contractors.
- Surface work locations include surface operations at underground mines, surface operations (strip or open pit), dredge, other surface operations, independent shops and yards, and mills or preparation plants.
- Includes actual days away from work and/or days of restricted work activity. For permanently disabling injuries only, statutory days charged by MSHA were used if they exceeded the total lost workdays.
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