Mining Facts - 2014

Overall Mining

The Mine Safety and Health Administration (MSHA) maintains data collected under the Code of Federal Regulations (30 CFR Part 50) on accidents, fatal and nonfatal injuries, illnesses, employment, and coal production. Summary data were obtained from the MSHA data files for mine operators and independent contractors working on mine property. See Statistical Methodology for further information.

Mining Operations

• In 2014, a total of 13,604 mining operations [1] reported employment to MSHA.
• Active mining operations were distributed among the coal (n=1,632; 12.0%), metal and nonmetal (n=1,256; 9.2%), and stone and sand & gravel (n=10,716; 78.8%) industry sectors. [2]
• The majority of the active mining operations were classified as surface (n=12,900; 94.8%). Underground mines accounted for the remainder of operations (n=704; 5.2%).
• The majority of the mining operations produced the primary commodity of sand & gravel (44.4%), followed by crushed and broken limestone (14.2%), and bituminous coal (10.9%).
• Mines reporting to MSHA are located in all 50 states, Puerto Rico, and the Virgin Islands. Pennsylvania had the most active mines in 2014 (n=880; 6.5%). Almost half (48.6%) of the active mining operations were located in the 13 states with the highest number of mining operations.

 

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Data for the previous chart showing the number of active mining operations and percent of total by commodity in 2014  (N=13,604) 

Commodity	Number of Mines	Percentage of Total
Coal	1,632	12.0
Metal	345	2.5
Nonmetal	911	6.7
Stone	4,350	32.0
Sand & Gravel	6,366	46.8

 

Employees

• A total of 366,535 employees, [3] corresponding to 311,476 full-time equivalent (FTE) [4] employees, were reported to MSHA by mine operators and independent contractors. [5]
• The average number of mine operator employees comprised 67.9% of the workforce compared to 32.1% for independent contractors.
• Within the mining commodities, [6] coal mine operator employees accounted for 27.6% of all employee hours reported, followed by stone operators (20.9%), metal operators (14.8%), noncoal contractors (13.0%), sand & gravel operators (8.5%), nonmetal operators (8.5%), and coal contractors (6.8%).
• The FTE employees reported for surface [7] work locations were higher (n=250,525; 80.4%) than those at underground work locations (n=60,951; 19.6%).
• The distribution of employees by industry sector included coal operators (n=77,462; 21.1%), metal and nonmetal operators (n=71,194; 19.4%), stone and sand & gravel operators (n=100,043; 27.3%), coal contractors (n=38,548; 10.5%), and noncoal contractors (n=79,288; 21.6%).

 

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 Data for the previous chart showing the average number of employees by industry sector in 2014

Industry Sector	Number of Employees
Coal Operator	77,462
Metal and Nonmetal Operator	71,194
Stone and Sand & Gravel Operator	100,043
Coal Contractor	38,548
Noncoal Contractor	79,288

 

Occupational Fatalities

• There were 43 occupational fatalities reported to MSHA in 2014. This compares to 41 in 2013.
• The number of fatalities reported by mine operators was 33 (76.7%) and independent contractors reported 10 (23.3%).
• Within the industry sectors, stone and sand & gravel had the highest number of fatalities (n=17; 39.5%), followed by the coal sector (n=15; 34.9%), and the metal and nonmetal sector (n=11; 25.6%).
• Fatalities occurred at surface work locations in 65.1% of the cases (n=28) with the remainder (n=15; 34.9%) occurring at underground work locations.
• The overall fatality rate was 15.1 [95% confidence interval (CI): 11.0, 20.4] per 100,000 FTE employees.
• The fatality rate of 24.6 [CI: 13.8, 40.6] for underground workers was higher than the surface worker rate of 12.6 [CI: 8.3, 18.1].
• The fatality rate for mine operators was 14.6 [CI: 10.1, 20.5] (n=33). Independent contractors had a fatality rate of 17.2 [CI: 8.3, 31.7] (n=10).
• The highest number of fatalities reported by accident classification was for powered haulage (n=13; 30.2%).
• The nature of injury most frequently reported for the fatalities was multiple injuries (n=18; 43.9%), followed by crushing (n=15; 34.9%).
• Nearly half (n=21; 48.8%) of the parts of body most frequently reported for fatalities was the category for multiple parts.

 

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 Data for the previous chart showing the distribution of occupational fatalities by accident class for 2014 (N=43)

Accident Classification	Percentage of Total
Powered haulage	30.2
Machinery	18.6
Slip or fall of person	16.3
Fall of ground (from in place)	14.0
Falling, rolling, or sliding rock or material	11.6
All other	9.3

 

Nonfatal Lost-time Injuries

• In 2014, there were 5,199 nonfatal lost-time injuries occurring at an overall rate of 1.8 [CI: 1.8, 1.9] per 100 FTE employees. This compares to 5,258 nonfatal lost-time injuries in 2013 occurring at a matching rate.
• These injuries occurred at underground (n=1,853; 35.6%) and surface (n=3,346; 64.4%) work locations.
• A total of 340,430 days were lost from work [8] as a result of these injuries.
• The nonfatal lost-time injury rate for mine operators was 2.1 [CI: 2.0, 2.1] per 100 FTE employees, and the independent contractor injury rate was 0.9 [CI: 0.8, 1.0].
• Underground workers had a higher rate of nonfatal lost-time injuries at 3.0 [CI: 2.9, 3.2]. The rate for surface workers was 1.5 [CI: 1.4, 1.6) per 100 FTE employees.
• The most frequent accident classification of nonfatal lost-time injuries involved handling materials (n=1,911; 36.8%), followed by slip or fall of person (n=1,357; 26.1%).
• Sprains or strains was the most frequently reported nature of injury (n=2,311; 44.5%). This was followed by injuries involving fractures and chips (n=945; 18.2%); cuts, lacerations, and punctures (n=497; 9.6%); and contusions and bruises (n=471; 9.1%).
• The back was the most frequently reported body part injured (n=926; 17.8%) resulting in 59,796 days lost from work. This was followed by injuries to the finger (n=666; 12.8%; 30,869 days lost), knee (n=544; 10.5%; 34,274 days lost), and shoulder (n=496; 9.5%; 45,467 days lost). 

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Data for the previous chart showing the rate (per 100 full-time equivalent employees) of nonfatal lost-time injuries by year, 2010–2014 (excludes office employees) 

Year	Overall	Operator	Contractor
2010	2.0	2.2	1.2
2011	1.9	2.1	1.2
2012	1.9	2.1	1.1
2013	1.8	2.0	1.0
2014	1.8	2.1	0.9

Coal Mine Operator Industry Sector

Mining Operations

• In 2014, a total of 1,632 coal mining operations reported employment to MSHA. This compares to 1,700 coal mining operations in 2013.
• Bituminous mines comprised 91.2% (n=1,488) and anthracite mines 8.8% (n=144) of all coal mining operations.
• The majority of coal mines are classified as surface mines (n=1,185; 72.6%).
• Approximately 71% of all coal mines were located in three states: Kentucky (n=418; 25.6%), Pennsylvania (n=381; 23.3%), and West Virginia (n=364; 22.3%).

 Employees

• A total of 77,462 employees, corresponding to 85,829 FTE employees, were reported by coal mine operators.
• Within the mining commodity sectors, coal mine operator employees accounted for 21.1% of all employee hours reported.
• The average number of employees at underground work locations was reported as 38,172 (49.3%) and 39,290 (50.7%) employees were reported as working at surface locations.

 Occupational Fatalities

• There were 13 occupational fatalities (10 occurring underground and 3 at surface work locations) reported among coal mine operator employees in 2014.
• The fatality rate was 15.7 [CI: 8.3, 26.8] per 100,000 FTE employees.
• The distribution of coal operator fatalities by accident classification was powered haulage (n=4; 30.8%), fall of ground (n=4; 30.8%), machinery (n=4; 30.8%), and electrical (n=1; 7.7%).
• The nature of injury for these coal mine operator fatalities was crushing (n=7; 53.8%), followed by multiple injuries (n=5; 38.5%) and electric shock and electrocution (n=1; 7.7%).

 Nonfatal Lost-time Injuries

• There were 2,059 nonfatal lost-time injuries (1,532 at underground and 527 at surface work locations) among coal mine operators occurring at a rate of 2.5 [CI: 2.4, 2.6] per 100 FTE employees. A total of 159,895 days lost from work resulted from these injuries.
• The most frequent accident classification of nonfatal lost-time injuries for coal mine operator employees involved handling materials (n=730; 35.5%), followed by slip or fall of person (n=505; 24.5%).
• Sprains or strains was the most frequently reported nature of injury (n=983; 47.7%). This was followed by fractures or chips (n=415; 20.2%).
• The back was the most frequently reported body part injured (n=414; 20.1%). This was followed by injuries to the knee (n=227; 11.0%), fingers (n=209; 10.2%), and shoulders (n=202; 9.8%).

 

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Data for the previous chart showing the number and rate (per 100 full-time equivalent employees) of coal mine operator nonfatal lost-time injuries by work location and year, 2010–2014 (excludes office employees)

Year	Underground Number	Underground Rate	Surface Number	Surface Rate
2010	1,818	3.8	670	1.4
2011	1,896	3.6	691	1.3
2012	1,717	3.4	596	1.3
2013	1,577	3.4	551	1.3
2014	1,532	3.5	527	1.3

Metal and Nonmetal Mine Operator Industry Sector

Mining Operations

• A total of 1,256 metal and nonmetal mining operations reported employment to MSHA in 2014. This compares to 1,231 mines reported in 2013.
• There were 1,116 surface and 140 underground metal and nonmetal mines.
• The primary commodity of “sand, industrial, ground silica/quartz” comprised the largest number of metal and nonmetal mining operations (n=285; 22.7%). This was followed by gold (n=191; 15.2%) and common clay (n=138; 11.0%).
• The leading Standard Industrial Classification for primary commodity mined at metal mining operations was gold (n=191; 55.4%). Nonmetal mining operations reported “sand, industrial, ground silica/quartz” as the primary commodity mined (n=285; 31.3%).
• Active metal and nonmetal mining operations are found throughout 48 states and Puerto Rico (no active mines in Hawaii, New Hampshire, or the Virgin Islands).
• The majority of metal and nonmetal mining operations are classified as surface mines (n=1,116; 88.9%).
• Nevada had the largest number of metal and nonmetal mines (n=114; 9.1%), followed by California (n=93; 7.4%), and Texas (n=85; 6.8%).

 Employees

• Metal and nonmetal mine operators reported a total of 71,194 employees, corresponding to 72,428 FTE employees.
• Within the mining commodity sectors, metal and nonmetal mine operator employees accounted for 23.3% of all employee hours reported.
• Metal and nonmetal employees were reported for both underground (12.8%) and surface (87.2%) work locations.

 Occupational Fatalities

• There were 8 occupational fatalities (2 occurring underground and 6 at surface work locations) reported among metal and nonmetal mine operator employees in 2014. This compares to 7 fatalities reported in 2013.
• The fatality rate was 12.5 [CI: 5.4, 24.7] per 100,000 FTE employees.
• The highest number of fatalities by accident classification was powered haulage (n=5; 62.5%).
• The nature of injury with the highest frequency was crushing (n=4; 50.0%).

 Nonfatal Lost-time Injuries

• There were 1,127 nonfatal lost-time injuries (174 at underground and 953 at surface work locations) among metal and nonmetal operators occurring at a rate of 1.8 [CI: 1.7, 1.9] per 100 FTE employees. A total of 56,633 days lost from work resulted from these injuries.
• The most frequent accident classification of nonfatal lost-time injuries for metal and nonmetal mine operator employees in­volved handling materials (n=409; 36.3%) followed by slip or fall of person (n=308; 27.3%).
• Sprains or strains was the most frequently reported nature of injury (n=550; 48.8%).
• The back was the most frequently reported body part injured (n=191; 16.9%). This was followed by injuries to fingers (n=143; 12.7%), knees (n=142; 12.6%), and shoulders (n=127; 11.3%). 

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Data for the previous chart showing the number and rate (per 100 full-time equivalent employees) of metal and nonmetal mine operator nonfatal lost-time injuries by work location and year, 2010–2014 (excludes office employees) 

Year	Underground Number	Underground Rate	Surface Number	Surface Rate
2010	235	3.0	703	1.6
2011	223	2.5	733	1.6
2012	259	2.7	741	1.5
2013	204	2.1	948	1.8
2014	174	1.8	953	1.8

Stone and Sand & Gravel Mine Operator Industry Sector

Mining Operations

• A total of 10,716 stone and sand & gravel mining operations reported employee hours to MSHA in 2014. This compares to 10,828 active mines in 2013.
• There were 10,599 surface stone and sand & gravel mining operations and 117 underground stone mining operations.
• Stone and sand & gravel mines were found throughout all 50 states, the Virgin Islands, and Puerto Rico.
• In stone mining, crushed and broken limestone was the primary commodity for the largest number of mining operations (n=1,926; 44.3%).
• Pennsylvania had the most stone mines (n=399; 9.2%), followed by Texas (n=382; 8.8%).
• Sand & gravel is the primary commodity mined at sand & gravel mines (n=6,038; 94.8%). The other primary commodity mined was construction sand & gravel and common sand (n=328; 5.2%).
• The states with the leading number of sand & gravel mines were Minnesota (n=496; 7.8%), New York (n=394; 6.2%), Wisconsin (n=380; 6.0%), and Michigan (n=348; 5.5%).

 Employees

• There were 100,043 employees, corresponding to 91,581 FTE employees, reported by stone and sand & gravel mine operators.
• Within the mining commodity sectors, stone and sand & gravel mine operator employees accounted for 29.4% of all employee hours reported.
• All sand & gravel operator hours reported were for surface work locations. Stone operator hours were reported for both underground (3.2%) and surface (96.8%) work locations.

 Occupational Fatalities

•  In 2014, there were 12 occupational fatalities reported among stone and sand & gravel mine operators, the same number reported in 2013.
• Ten of these fatalities occurred at surface work areas of the mine and two occurred at underground work locations.
• The fatality rate was 15.2 [CI: 7.8, 26.5] per 100,000 FTE employees.
• Falling, rolling, or sliding rock or material was the accident classification with the most fatalities (n=4; 33.3%).
• The leading nature of injury for these fatalities was multiple injuries (n=6; 50.0%).

 Nonfatal Lost-time Injuries

• There were 1,478 nonfatal lost-time injuries (44 at underground and 1,434 at surface work locations) among stone and sand & gravel operators occurring at a rate of 1.9 [CI: 1.8, 2.0] per 100 FTE employees. A total of 88,824 days lost from work resulted from these injuries.
• The leading accident classification of nonfatal lost-time injuries for stone and sand & gravel operator employees involved handling materials (n=593; 40.1%), followed by slip or fall of person (n=377; 25.5%).
• Sprains or strains was the most frequently reported nature of injury (n=615; 41.6%), followed by fractures and chips (n=254; 17.2%).
• The back was the most frequently reported body part injured (n=250; 16.9%). This was followed by injuries to fingers (n=235; 15.9%), the knee (n=141; 9.5%), and shoulders (n=129; 8.7%).

   

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Data for the previous chart showing the number and rate (per 100 full-time equivalent employees) of stone and sand & gravel mine operator nonfatal lost-time injuries by work location and year, 2010–2014 (excludes office employees)

Year	Underground Number	Underground Rate	Surface Number	Surface Rate
2010	41	2.2	1,542	2.1
2011	35	1.8	1,451	1.9
2012	42	2.2	1,478	1.9
2013	36	1.9	1,327	1.8
2014	44	2.1	1,434	1.9

Coal and Noncoal Independent Contractors

An independent contractor is defined by MSHA as “any person, partnership, corporation, subsidiary of a corporation, firm, association or other organization that contracts to perform services or construction at a mine.” Contractors that perform specific types of work are required to report the number of employees who work at coal mines and noncoal mines.

Independent Contracting Companies

• A total of 10,042 independent contracting companies reported employee hours to MSHA.
• Coal contractors accounted for 3,006 of the companies (29.9%), and 7,036 (70.1%) were noncoal (metal, nonmetal, stone, and sand & gravel) contracting companies.

 Employees

• Independent contractors reported a total of 117,836 employees, corresponding to 61,638 FTE employees.
• Coal contractor employees comprised 32.7% (n=38,548) of the contractor employment, and noncoal contractor employees represented 67.3% with 79,288 employees reported.
• The distribution of employee hours for coal contractors was 18.0% for underground work locations and 82.0% for surface locations.
• Noncoal contractor employee hours were reported at underground locations 4.8% of the time with 95.2% of the hours being worked at surface locations.

Occupational Fatalities

• In 2014, ten occupational fatalities occurred among independent contractor employees at a rate of 17.2 [CI: 8.3, 31.7] per 100,000 FTE employees. This compares to four occupational fatalities in 2013 (no fatality rates are calculated when the number of fatalities is less than five).
• Two of these fatalities were attributed to coal contractors and eight fatalities were for noncoal contractors.
• Nine of these fatalities occurred at surface areas of the mine and one fatality occurred underground.
• Of the contractor fatalities, four had an accident classification of slip or fall of person, three were powered haulage, two were machinery, and one fatality was classified as falling, rolling, or sliding rock or material.

 Nonfatal Lost-time Injuries

• There were 535 nonfatal lost-time injuries among contractor employees (103 at underground and 432 at surface work locations) with an overall rate of 0.9 [CI: 0.8, 1.0] injuries per 100 FTE employees.
• The underground nonfatal lost-time injury rate of 1.8 [CI: 1.4, 2.1] was greater than the surface injury rate of 0.8 [CI: 0.7, 0.9] per 100 FTE workers.
• Of the total injuries, 237 were attributed to coal contractors and 298 were for noncoal contractors.
• The leading contractor classification of nonfatal lost-time injuries involved handling materials (n=179; 33.5%), followed by slip or fall of person (n=167; 31.2%).
• The back was the most frequently reported part of body injured for coal contractors (n=33; 13.9%) followed by fingers (n=30; 12.7%). The leading parts of body injured for noncoal contractors were fingers (n=49; 16.4%) and the back (n=38; 12.8%).
• Sprains and strains was the most frequently reported nature of injury for coal contractors (n=82; 34.6%) and also for noncoal contractors (n=81; 27.2%). 

  

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Data for the previous chart showing the number and rate (per 100 full-time equivalent employees) of coal and noncoal contractor lost-time injuries by year, 2010–2014 (excludes office employees)

Year	Coal Number	Coal Rate	Noncoal Number	Noncoal Rate
2010	361	1.5	253	0.9
2011	403	1.6	345	1.0
2012	345	1.4	384	1.0
2013	271	1.3	344	0.9
2014	237	1.2	298	0.8

Notes

Publicly released employment and accident/injury/illness data were collected by the Mine Safety and Health Administration (MSHA) under the Code of Federal Regulations (30 CFR 50). All analyses of accident data exclude office employees. Occupational fatalities exclude all cases under 17 years of age. Caution should be used when interpreting rates based on a small number of events.

[1] Both mine operator and independent contractor employees work at mining operations. Active mines are those that report any mine o operator employment. Mines at which only independent contractors were working and did not show any operator employment were not counted.

[2] Mining industry sectors include: (1) coal, (2) metal and nonmetal, and (3) stone and sand & gravel.

[3] Average number of employees working at individual mines during calendar quarters of active operations (includes office workers).

[4] Full-time equivalent employees computed using reported employee hours (2,000 hours = 1 FTE; includes office workers).

[5] Independent contractors do not report mine-specific information for employment. The data they provide are summaries for all coal and all noncoal (metal, nonmetal, stone, and sand & gravel) mining operations. For this reason, contractors cannot be included when computing fatality and injury rates for either the metal and nonmetal or the stone and sand & gravel industry sectors.

[6] Mining commodity and type of employer classes include coal operators, metal operators, nonmetal operators, stone operators, sand & gravel operators, coal contractors, and noncoal (metal, nonmetal, stone, and sand & gravel) contractors.

[7] 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.

[8] Total days lost 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.

 

Data Tables

Active Mining Operations, 2014

Commodity and Industry Sector	Underground	Surface	Total
Coal	447	1,185	1,632
Coal Sector	447	1,185	1,632
Metal	96	249	345
Nonmetal	44	867	911
Metal and Nonmetal Sector	140	1,116	1,256
Stone	117	4,233	4,350
Sand & Gravel	0	6,366	6,366
Stone and Sand & Gravel Sector	117	10,599	10,716
TOTAL	704	12,900	13,604

Independent Contracting Companies, 2014

Commodity	Companies
Coal	3,006
Noncoal	7,036
Total	10,042

Employment Characteristics, 2014

Commodity, Type of Employer, Industry Sector	Underground  Employees	Surface Employees	Total Employees	Underground FTE Employees	Surface FTE Employees	Total FTE Employees
Coal Operator Sector	38,172	39,290	77,462	43,623	42,206	85,829
Metal Operator	6,424	38,414	44,838	6,540	39,548	46,089
Nonmetal Operator	2,709	23,647	26,356	2,944	23,396	26,339
Metal and Nonmetal Operator Sector	9,133	62,061	71,194	9,484	62,944	72,428
Stone Operator	1,878	63,804	65,682	2,083	63,050	65,133
Sand & Gravel Operator	0	34,361	34,361	0	26,447	26,447
Stone and Sand & Gravel Operator Sector	1,878	98,165	100,043	2,083	89,498	91,581
Operator Total	49,183	199,516	248,699	55,190	194,648	249,838
Coal Contractor	6.068	32,480	38,548	3,805	17,356	21,161
Noncoal Contractor	2,826	76,462	79,288	1,955	38,522	40,477
Contractor Total	8,894	108,942	117,836	5,761	55,877	61,638
TOTAL	58,077	308,458	366,535	60,951	250,525	311,476
Note: Components may not sum to totals due to rounding

Occupational Fatalities, 2014

Rate per 100,000 full-time equivalent employees; 95% confidence interval

Commodity, Type of Employer, Industry Sector	Total Number	Total Rate	Total Lower CI	Total Upper CI
Coal Operator Sector	13	15.7	8.3	26.8
Metal Operator	3	NC	NC	NC
Nonmetal Operator	5	22.2	7.2	51.8
Metal and Nonmetal Operator Sector	8	12.5	5.4	24.7
Stone Operator	5	8.9	2.9	20.9
Sand & Gravel Operator	7	30.3	12.2	62.3
Stone and Sand & Gravel Operator Sector	12	15.2	7.8	26.5
Operator Total	33	14.6	10.1	20.5
Coal Contractor	2	NC	NC	NC
Noncoal Contractor	8	21.0	9.0	41.3
Contractor Total	10	17.2	8.3	31.7
TOTAL	43	15.1	11.0	20.4
Note: NC–Not calculated when N is less than 5

Occupational Fatalities (Underground), 2014

Rate per 100,000 full-time equivalent employees; 95% confidence interval

Commodity, Type of Employer, Industry Sector	Underground Number	Underground Rate	Underground Lower CI	Underground Upper CI
Coal Operator Sector	10	22.9	11.0	42.2
Metal Operator	2	NC	NC	NC
Nonmetal Operator	0	NC	NC	NC
Metal and Nonmetal Operator Sector	2	NC	NC	NC
Stone Operator	2	NC	NC	NC
Sand & Gravel Operator	NA	NA	NA	NA
Stone and Sand & Gravel Operator Sector	2	NC	NC	NC
Operator Total	14	25.4	13.9	42.6
Coal Contractor	0	NC	NC	NC
Noncoal Contractor	1	NC	NC	NC
Contractor Total	1	NC	NC	NC
TOTAL	15	24.6	13.8	40.6
Notes: NA–Not applicable; NC–Not calculated when N is less than 5

Occupational Fatalities (Surface), 2014

Rate per 100,000 full-time equivalent employees; 95% confidence interval

Commodity, Type of Employer, Industry Sector	Surface Number	Surface Rate	Surface Lower CI	Surface Upper CI
Coal Operator Sector	3	NC	NC	NC
Metal Operator	1	NC	NC	NC
Nonmetal Operator	5	25.6	8.3	59.6
Metal and Nonmetal Operator Sector	6	11.1	4.1	24.1
Stone Operator	3	NC	NC	NC
Sand & Gravel Operator	7	30.3	12.2	62.3
Stone and Sand & Gravel Operator Sector	10	13.0	6.2	23.9
Operator Total	19	11.1	6.7	17.4
Coal Contractor	2	NC	NC	NC
Noncoal Contractor	7	19.3	7.8	39.8
Contractor Total	9	17.2	7.9	32.7
TOTAL	28	12.6	8.3	18.1
Note: NC–Not calculated when N is less than 5

Nonfatal Lost-time Injuries, 2014

Rate per 100 full-time equivalent employees; 95% confidence interval

Commodity, Type of Employer, Industry Sector	Total Number	Total Rate	Total Lower CI	Total Upper CI
Coal Operator Sector	2,059	2.5	2.4	2.6
Metal Operator	744	1.8	1.7	1.9
Nonmetal Operator	383	1.7	1.5	1.9
Metal and Nonmetal Operator Sector	1,127	1.8	1.7	1.9
Stone Operator	1,157	2.1	1.9	2.2
Sand & Gravel Operator	321	1.4	1.2	1.5
Stone and Sand & Gravel Operator Sector	1,478	1.9	1.8	2.0
Operator Total	4,664	2.1	2.0	2.1
Coal Contractor	237	1.2	1.0	1.3
Noncoal Contractor	298	0.8	0.7	0.9
Contractor Total	535	0.9	0.8	1.0
TOTAL	5,199	1.8	1.8	1.9

Nonfatal Lost-time Injuries (Underground), 2014

Rate per 100 full-time equivalent employees; 95% confidence interval

Commodity, Type of Employer, Industry Sector	Underground Number	Underground Rate	Underground Lower CI	Underground Upper CI
Coal Operator Sector	1,532	3.5	3.3	3.7
Metal Operator	128	2.0	1.6	2.3
Nonmetal Operator	46	1.6	1.1	2.1
Metal and Nonmetal Operator Sector	174	1.8	1.6	2.1
Stone Operator	44	2.1	1.5	2.8
Sand & Gravel Operator	NA	NA	NA	NA
Stone and Sand & Gravel Operator Sector	44	2.1	1.5	2.8
Operator Total	1,750	3.2	3.0	3.3
Coal Contractor	86	2.3	1.8	2.8
Noncoal Contractor	17	0.9	0.5	1.4
Contractor Total	103	1.8	1.4	2.1
TOTAL	1,853	3.0	2.9	3.2
Note: NA–Not applicable

Nonfatal Lost-time Injuries (Surface), 2014

Rate per 100 full-time equivalent employees; 95% confidence interval

Commodity, Type of Employer, Industry Sector	Surface Number	Surface Rate	Surface Lower CI	Surface Upper CI
Coal Operator Sector	527	1.3	1.2	1.5
Metal Operator	616	1.8	1.6	1.9
Nonmetal Operator	337	1.7	1.5	1.9
Metal and Nonmetal Operator Sector	953	1.8	1.6	1.9
Stone Operator	1,113	2.1	1.9	2.2
Sand & Gravel Operator	321	1.4	1.2	1.5
Stone and Sand & Gravel Operator Sector	1,434	1.9	1.8	2.0
Operator Total	2,914	1.7	1.6	1.8
Coal Contractor	151	0.9	0.8	1.1
Noncoal Contractor	281	0.8	0.7	0.9
Contractor Total	432	0.8	0.7	0.9
TOTAL	3,346	1.5	1.4	1.6

  

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