Data / Mines / Nonmetal mines

Nonmetal mineral mines in the US: 933 open mines

Name: Nonmetal mineral mines
Creator: SpecStream
License: https://creativecommons.org/licenses/by/4.0/

MSHA lists 933 open nonmetal mineral mines in the US, run by 643 operators and employing 22,519 people. Since January 1, 2022 its inspectors issued 27,738 citations and orders there with $18,217,806 in proposed penalties, and operators reported 2,281 injury or illness cases, 14 of them fatal. The operators with the most open mines are General Shale Brick, Inc.; U.S. Silica Company, LLC; Acme Brick Company. Data from MSHA, November 6, 2026.

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Open mines: 933
Operators: 643
Employees: 22,519
Active: 631
Intermittent: 248
Temporarily Idled: 47
NonProducing: 5
New Mine: 2
Mines run by individuals, counted and not listed: 53
Citations and orders since January 1, 2022: 27,738
Significant and substantial: 4,822 (17.4%)
Closure orders: 702
High negligence or reckless: 2,033
Proposed penalties: $18,217,806
Amount paid so far: $13,456,233
Inspections: 12,635
Inspector hours on site: 149,368
Citations per inspection: 2.20 (all mines 2.30)
Accident reports: 2,607
Injury and illness cases: 2,281
Fatalities: 14
Latest MSHA record: November 5, 2026

Operators with the most open mines

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

Operator	Open mines	Employees	Citations since 2022	Proposed penalties	Injury cases
General Shale Brick, Inc.	24	77	64	$9,288	0
U.S. Silica Company, LLC	23	1,076	748	$344,604	59
Acme Brick Company	10	61	61	$9,818	1
Cimbar Resources	9	271	250	$80,023	29
United States Gypsum Company	8	277	363	$130,599	30
Black Hills Bentonite-A Limited Liability Co	8	78	224	$68,438	41
American Colloid Company Mineral Group	8	247	208	$68,089	38
Covia Solutions LLC	8	169	157	$32,887	24
KaMin LLC.	7	676	189	$87,566	32
The Quartz Corp USA	7	86	134	$31,425	4
Thiele Kaolin Company	6	734	133	$39,930	49
Wyo-Ben, Inc	6	157	83	$17,018	31
Gold Bond Building Products, LLC.	6	92	55	$9,260	3
Glen-Gery Corporation	6	13	21	$3,089	0
Martin Marietta Materials, Inc.	5	220	252	$213,870	45
Magris Talc USA Inc.	5	197	183	$35,064	52
Kentucky Tennessee Clay Company	5	155	176	$119,476	12
Acg Materials	5	136	89	$32,364	2
Halliburton	5	49	63	$11,135	4
Imc Phosphates Company	4	821	437	$194,005	57
Imerys Filtration Minerals, Inc.	4	266	328	$480,987	20
Georgia-Pacific Gypsum LLC	4	46	116	$36,005	8
Imerys Perlite USA, Inc	4	59	96	$38,845	6
Covia Clay LLC	4	127	77	$26,833	12
Bentonite Performance Minerals, LLC	4	213	72	$12,812	11
Sibelco North America, Inc	4	166	71	$17,949	3
Imerys Refractory Minerals USA Inc.	4	229	70	$24,797	3
M-I L L C	4	48	61	$14,805	5
Active Minerals International LLC	4	151	56	$14,154	20
VM Buyer LLC	4	65	50	$15,233	11
Little River Materials	4	24	11	$4,346	2
Ed Pelletier & Sons Co	4	20	2	$0	0
Taylor Clay Products	4	5	1	$147	0
Morton Salt Inc	3	414	1,248	$1,177,107	36
Csi Sands NE LTD.	3	32	371	$1,084,132	5
Intrepid Potash-New Mexico, LLC	3	468	361	$105,775	15
American Gilsonite Company	3	104	100	$18,797	22
Carbo Ceramics Inc	3	88	86	$47,377	20
Badger Mining Corporation	3	121	84	$18,854	25
SRM Materials, LLC	3	32	63	$16,164	7
Source Energy Services Proppants, LP	3	56	62	$15,783	5
Old Hickory Clay Company	3	50	57	$15,996	1
West Texas Rock Resources LLC	3	6	47	$8,056	0
Elevation Newco LLC	3	76	34	$6,615	7
Van Eaton Ready Mix, Inc	3	19	34	$4,561	1
American Gypsum Company LLC	3	34	26	$4,195	1
Imerys Mica Kings Mountain Inc	3	20	19	$2,786	5
Henry Brick Company Inc	3	9	15	$2,618	0
Triangle Brick Company	3	16	10	$1,770	0
Michels Road & Stone, Inc.	3	5	0	$0	0
Pine Hall Brick	3	4	0	$0	0
Cargill Inc	2	398	402	$70,557	32
U S Borax Inc	2	629	366	$643,234	40
Cimbar Performance Minerals	2	68	164	$107,414	6
DTS Sands LLC	2	11	154	$59,950	2
Independence OH, LLC	2	103	143	$49,027	25
United Salt Carlsbad LLC	2	90	130	$73,209	19
Nestle Purina PetCare Company	2	645	126	$35,867	26
Carolina Stalite Company LP	2	148	115	$89,331	27
Gouverneur LLC	2	33	110	$38,252	8
U.S. Silica Energy Company	2	87	100	$38,841	5
Tolsa Wyoming Bentonite Corp.	2	9	85	$56,892	1
Hess Pumice Products Inc	2	91	73	$98,172	0
Dicaperl Minerals LLC	2	2	71	$28,330	15
Clariant Corporation	2	76	68	$18,583	9
Alpine Silica, LLC	2	45	61	$20,170	19
Progressive Contracting Inc	2	23	59	$27,611	1
Liberty Materials, Inc.	2	8	50	$26,104	3
Amp Processing, LLC	2	4	45	$19,357	7
CalPortland Company	2	12	42	$13,550	2
Imerys Clays Inc	2	67	41	$6,411	4
Protech Minerals, LLC	2	7	40	$6,989	0
Byk USA LLC	2	159	36	$5,814	8
Granite Construction Company	2	25	32	$5,243	0
TV Materials Inc.	2	5	31	$7,164	0
Kyanite Mining Corp	2	97	29	$4,008	11
Ares Strategic Mining Inc.	2	4	28	$4,150	1
The Chemours Company FC LLC	2	10	28	$5,762	5
Burningham Enterprises Inc	2	4	25	$5,166	0
South AL Sand and Gravel, Inc	2	9	23	$23,556	0
General Finance Inc	2	10	21	$4,352	0
Mineral Manufacturing Corp.	2	37	21	$6,290	3
Elementis Specialties Inc	2	35	20	$3,355	3
Western Mining and Minerals, Inc.	2	12	20	$4,080	4
Black Hills Lignite a Limited Liability Co	2	11	19	$13,472	0
Monarch Mountain Minerals & Aggregates, LLC	2	11	19	$4,737	0
Gopher Construction Inc	2	4	16	$3,162	0
Coromoto Minerals LLC	2	4	14	$2,230	0
Imerys Minerals USA, Inc.	2	17	13	$1,856	2
Certainteed Gypsum and Ceiling Manufacturing Inc	2	7	12	$2,098	0
Seawright & Robison Construction, Inc.	2	8	12	$2,186	0
Tennessee Aggregates LLC	2	10	9	$463	0
Acme Brick Tile & Stone LLC	2	7	8	$705	0
Decaigny Excavating Inc	2	4	6	$907	0
Gingue Construction Inc.	2	10	6	$731	0
South Alabama Materials Inc	2	7	6	$932	0
Capital Sand Company, Inc.	2	8	5	$755	1
E & S Mining & Trucking Co Inc	2	7	5	$755	0
Table Rock Minerals LLC	2	6	5	$737	2
Tri-County Paving, Inc.	2	3	5	$747	1

Operators with the most citations

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

Operator	Open mines	Employees	Citations since 2022	Proposed penalties	Injury cases
Morton Salt Inc	3	414	1,248	$1,177,107	36
We Soda Alkali, LLC	1	815	996	$875,599	89
International Minerals Carlsbad, Inc.	1	467	887	$1,303,370	34
American Soda LLC	1	449	804	$396,226	41
U.S. Silica Company, LLC	23	1,076	748	$344,604	59
Tata Chemicals Soda Ash Partners LLC	1	539	626	$287,540	38
Imc Phosphates Company	4	821	437	$194,005	57
Compass Minerals Louisiana Inc.	1	161	411	$239,849	26
Cargill Inc	2	398	402	$70,557	32
Csi Sands NE LTD.	3	32	371	$1,084,132	5
U S Borax Inc	2	629	366	$643,234	40
United States Gypsum Company	8	277	363	$130,599	30
Intrepid Potash-New Mexico, LLC	3	468	361	$105,775	15
Sisecam Wyoming, LLC	1	437	345	$122,741	11
Imerys Filtration Minerals, Inc.	4	266	328	$480,987	20
American Rock Salt Company LLC	1	215	326	$140,974	38
Norlite	1	4	308	$372,167	7
Imerys Wollastonite USA, LLC	1	43	277	$308,528	8
Martin Marietta Materials, Inc.	5	220	252	$213,870	45
Cimbar Resources	9	271	250	$80,023	29
Wedron Silica LLC	1	140	244	$184,316	26
Pcs Phosphate, White Springs	1	247	232	$215,850	90
American Tripoli	1	0	227	$201,577	1
Black Hills Bentonite-A Limited Liability Co	8	78	224	$68,438	41
Hutchinson Salt Company	1	43	211	$83,857	12
American Colloid Company Mineral Group	8	247	208	$68,089	38
Northeast Solite Corp	1	28	205	$130,282	23
Independent Salt Company	1	60	198	$82,201	15
Lyons Salt Company	1	76	197	$92,101	6
Pattison Company, LLC	1	139	190	$56,445	43

Mines with the most citations

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

Mine	Operator	County	Main commodity	Employees	Citations since 2022
We Soda @ Westvaco	We Soda Alkali, LLC	Sweetwater County, WY	Trona	815	996
International Minerals Carlsbad, Inc.	International Minerals Carlsbad, Inc.	Eddy County, NM	Potash	467	887
American Soda LLC	American Soda LLC	Sweetwater County, WY	Trona	449	804
Weeks Island Mine and Mill	Morton Salt Inc	Iberia Parish, LA	Salt	125	693
Tata Chemicals Mine	Tata Chemicals Soda Ash Partners LLC	Sweetwater County, WY	Trona	539	626
Grand Saline Operations	Morton Salt Inc	Van Zandt County, TX	Salt	180	423
Cote Blanche Mine	Compass Minerals Louisiana Inc.	Iberia Parish, LA	Salt	161	411
Boron Operations	U S Borax Inc	Kern County, CA	Boron minerals	624	364
Big Island Mine & Refinery	Sisecam Wyoming, LLC	Sweetwater County, WY	Trona	437	345
Hampton Corners Mine and Retsof Bagging	American Rock Salt Company LLC	Livingston County, NY	Salt	215	326
Cohoes Mine and Mill	Norlite	Albany County, NY	Common shale	4	308
Cargill Deicing Solutions-Cleveland Mn	Cargill Inc	Cuyahoga County, OH	Salt	203	305
Willsboro Mine (fox Knoll)	Imerys Wollastonite USA, LLC	Essex County, NY	Wollastonite	43	277
Intrepid Potash East	Intrepid Potash-New Mexico, LLC	Eddy County, NM	Potash	240	275
Four Corners	Imc Phosphates Company	Polk County, FL	Phosphate rock	500	269
Buffalo Dock	Csi Sands NE LTD.	Erie County, NY	Sand, industrial	13	250
Imerys Lompoc Plant	Imerys Filtration Minerals, Inc.	Santa Barbara County, CA	Diatomaceous earth (diatomite)	198	249
Wedron Plant	Wedron Silica LLC	La Salle County, IL	Sand, industrial	140	244
Swift Creek Mine	Pcs Phosphate, White Springs	Hamilton County, FL	Phosphate rock	247	232
MOSenecaMfr LLC DBA American Tr	American Tripoli	Newton County, MO	Tripoli	0	227
Hutchinson Salt Company	Hutchinson Salt Company	Reno County, KS	Salt	43	211
Ottawa Plant	U.S. Silica Company, LLC	La Salle County, IL	Ground silica	124	209
MT Marion Pit and Mill	Northeast Solite Corp	Ulster County, NY	Common shale	28	205
Independent Salt Company	Independent Salt Company	Ellsworth County, KS	Salt	60	198
Lyons Mine	Lyons Salt Company	Rice County, KS	Salt	76	197
Pattison Company, LLC	Pattison Company, LLC	Clayton County, IA	Sand, industrial	139	190
Arcosa Boulder Plant #1604	Arcosa LWB, LLC	Jefferson County, CO	Common shale	10	176
LeFevre-Mager Mine	Mounds Production Company LLC	Pulaski County, IL	Common clays	29	171
Western Proppants Facility #1	Western Proppants, LLC	Goshen County, WY	Sand, industrial	21	164
Dimmit Mine	Iron Oak Eagle Ford LLC	Dimmit County, TX	Sand, industrial	33	151
Detroit Salt Mine	Detroit Salt Co LLC	Wayne County, MI	Salt	41	149
Martin Marietta, Gabbs Mine	Martin Marietta Materials, Inc.	Nye County, NV	Industrial inorg. chemicals	115	144
Force Sand Pleasanton	Force Sand, LLC	Atascosa County, TX	Sand, industrial	13	142
South Fort Meade Mine	Imc Phosphates Company	Polk County, FL	Phosphate rock	216	134
Morton Salt Fairport Mine	Morton Salt Inc	Lake County, OH	Salt	109	132
Fort Smith Plant	Covia Isp, Inc.	Sebastian County, AR	Sand, industrial	59	132
Capital Rock LLC	Capital Rock LLC	Placer County, CA	Graphite	15	132
Columbia Plant	U.S. Silica Company, LLC	Lexington County, SC	Sand, industrial	55	124
Arepet Industries	Arepet Industries, LLC	Bexar County, TX	Sand, industrial	20	121
Wall Street Sand Co	Wall Street Sand Co LLC	Winkler County, TX	Sand, industrial	6	121
Cimbar-Mv	Cimbar Performance Minerals	Posey County, IN	Talc	34	118
Poteet Plant	Carousel Energy Services	Atascosa County, TX	Ground silica	4	117
DTS Sands- Bag Plant	DTS Sands LLC	Jackson County, OH	Sand, industrial	6	114
Pacific Plant	U.S. Silica Company, LLC	St Louis County, MO	Quartz, ground	41	109
Sperry Mine	United States Gypsum Company	Des Moines County, IA	Gypsum	60	107
New Mexico Salt & Minerals LLC	New Mexico Salt & Minerals LLC	Eddy County, NM	Salt, brine evaporated	1	106
Z&T Ranch Sand Plant	Independence OH, LLC	Loving County, TX	Sand, industrial	35	104
Cinder Mountain Mine	Volcanic Stone Co	Union County, NM	Misc. nonmetallic mnls.	2	102
Edgar Minerals, Inc.	Edgar Minerals, Inc.	Putnam County, FL	Kaolin and ball clay	37	100
Ripley Mine and Mill	Oil Dri Production Company LLC	Tippah County, MS	Common clays	63	99
Hockley Mine	United Salt Hockley, LLC	Harris County, TX	Salt	59	98
K-T Feldspar Plant	The Quartz Corp USA	Mitchell County, NC	Feldspar	49	98
Cayuga Mine	Cargill Inc	Tompkins County, NY	Salt	195	97
Atascosa	Iron Oak Atascosa LLC	Atascosa County, TX	Sand, industrial	99	96
Cedar Bluff	Sierra Frac Sand, LLC	Bossier Parish, LA	Sand, industrial	46	96
Blue Rapids Mine and Mill	GP Industrial Plasters LLC	Marshall County, KS	Gypsum	41	96
Thompson Mine	Great Sand LLC	Geauga County, OH	Ground silica	23	96
Crane County Plant	U.S. Silica Energy Company	Crane County, TX	Sand, industrial	85	93
Blue Diamond Hill	Gypsum Resources LLC	Clark County, NV	Gypsum	49	93
Manley Bros.	Manley Bros.Of Indiana Inc	La Salle County, IL	Sand, industrial	23	91
Carolina Stalite Company-Stalite Mill	Carolina Stalite Company LP	Rowan County, NC	Common shale	121	90
Sweetwater Quarry	United States Gypsum Company	Nolan County, TX	Gypsum	47	90
Enoree Operations	Specialty Vermiculite LLC	Laurens County, SC	Vermiculite	20	85
Bear River Zeolite Company	Bear River Zeolite Company	Franklin County, ID	Zeolites	13	85
Tolsa Wyoming Bentonite Plant	Tolsa Wyoming Bentonite Corp.	Natrona County, WY	Bentonite	8	85
Dock #1 Whiskey Island	Csi Sands NE LTD.	Cuyahoga County, OH	Ground silica	3	85
No. 4 Mine	Gouverneur LLC	Lewis County, NY	Misc. nonmetallic mnls.	9	83
Lane Mtn Silica Quarry & Mill	Lane Mt. Silica Co.	Stevens County, WA	Ground silica	39	82
Shoals Mine	United States Gypsum Company	Martin County, IN	Gypsum	49	80
Sweetwater Quarry	Georgia-Pacific Gypsum LLC	Nolan County, TX	Gypsum	6	80
R. S. I. Pit	Ramirez & Sons, Inc.	Lea County, NM	Shell	7	76
Bloomfield Plant	Nestle Purina PetCare Company	Stoddard County, MO	Common clays	520	75
Lee Creek Mine	PCS Phosphate Company Inc	Beaufort County, NC	Phosphate rock	676	71
Wrens Plant	KaMin LLC.	Jefferson County, GA	Kaolin and ball clay	147	71
Carlsbad Plant	United Salt Carlsbad LLC	Eddy County, NM	Salt, brine evaporated	50	70
Christy Minerals Plant	Christy Minerals LLC	Montgomery County, MO	Clay, ceramic, refractory mnls.	35	69
Ludlow Mill	Magris Talc USA Inc.	Windsor County, VT	Talc	23	69
Deepstep Road Plant	Thiele Kaolin Company	Washington County, GA	Kaolin and ball clay	202	68
Ida-Ore	Ida-Ore Mining, LLC	Jerome County, ID	Zeolites	9	68
Quincy WA Plant	Imerys Filtration Minerals, Inc.	Grant County, WA	Misc. nonmetallic mnls.	42	67
Waverly	San Joaquin County Aggregates	San Joaquin County, CA	Sand, industrial	4	66
Solid Rock Materials	Solid Rock Materials, LLC	Perry County, MS	Sand, industrial	4	64
Arcosa Brooklyn Plant #1683	Arcosa LW HPB, LLC	Morgan County, IN	Common shale	31	63
Schoolhouse Quartz Plant	Sibelco North America, Inc	Avery County, NC	Quartz, crystal	144	62
Smoky Canyon Mine	J R Simplot Company	Caribou County, ID	Phosphate rock	235	61
Cimbar Resources Inc.	Cimbar Resources	Nueces County, TX	Pigment minerals	36	61
Empire Blended Products Inc	Empire Blended Products Inc	Ocean County, NJ	Sand, industrial	20	61
Quincy Plant and Mines	Clariant Corporation	Gadsden County, FL	Common clays	75	60
Kentucky-Tennessee Clay Company	Kentucky Tennessee Clay Company	Washington County, GA	Common clays	56	60
Carlsbad Lake Plant	United Salt Carlsbad LLC	Eddy County, NM	Salt, brine evaporated	40	60
TQP-Eagle Lake	TQP-Eagle Lake, LP	Colorado County, TX	Sand, industrial	11	60
Grosso Materials Inc.	Grosso Materials Inc	Orange County, NY	Common shale	6	59
Mulcoa Plant No 2	Imerys Refractory Minerals USA Inc.	Sumter County, GA	Common clays	106	58
Gleason Mills and Mines	Kentucky Tennessee Clay Company	Weakley County, TN	Common clays	50	58
Kermit Mine	Badger Mining Corporation	Winkler County, TX	Sand, industrial	50	57
Route 81, LLC	S M Gallivan LLC	Greene County, NY	Common shale	5	57
Dicaperl Minerals LLC	Dicaperl Minerals LLC	Socorro County, NM	Perlite	1	57
Calvert Mine	Calvert USA, LLC	Norton County, KS	Pumice	4	56
McIntyre Plant	KaMin LLC.	Wilkinson County, GA	Kaolin and ball clay	79	55
Select Materials-Millwood Operation	Select Materials	Knox County, OH	Sand, industrial	5	55

Main commodities

Main commodity	Open mines	Share
Sand, industrial	308	33%
Common clays	98	10.5%
Gypsum	55	5.9%
Clay, ceramic, refractory mnls.	52	5.6%
Common shale	50	5.4%
Bentonite	31	3.3%
Fire clay	27	2.9%
Shell	26	2.8%
Barite barium ore	24	2.6%
Misc. nonmetallic mnls.	22	2.4%
Gemstones	19	2%
Kaolin and ball clay	18	1.9%
Salt	15	1.6%
Ground silica	13	1.4%
Phosphate rock	13	1.4%

States

State	Open mines	Share
Texas	94	10.1%
California	52	5.6%
Nevada	49	5.3%
Alabama	47	5%
Georgia	46	4.9%
Wyoming	40	4.3%
North Carolina	39	4.2%
Wisconsin	36	3.9%
Florida	33	3.5%
New Mexico	32	3.4%
Utah	31	3.3%
New York	27	2.9%
Ohio	27	2.9%
Oklahoma	27	2.9%
Mississippi	26	2.8%

Citations and injury cases by year

Calendar years since 2022; 2026 runs to the date of the MSHA files.

Year	Citations and orders	Significant and substantial	Proposed penalties	Injury and illness cases
2022	5,302	1,010	$3,272,935	502
2023	5,936	1,053	$4,437,722	496
2024	6,157	1,044	$4,212,384	463
2025	5,652	935	$3,604,347	439
2026	4,691	780	$2,690,417	381

Standards cited most at nonmetal mineral mines

Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.

Standard	What the part covers	Citations
30 CFR 56.14107	Surface metal and nonmetal mines	1,457
30 CFR 56.20003	Surface metal and nonmetal mines	1,378
30 CFR 56.14100	Surface metal and nonmetal mines	1,356
30 CFR 56.12004	Surface metal and nonmetal mines	1,196
30 CFR 56.14112	Surface metal and nonmetal mines	1,176
30 CFR 56.12032	Surface metal and nonmetal mines	961
30 CFR 50.30	Reporting of accidents, injuries and illnesses	668
30 CFR 57.20003	Underground metal and nonmetal mines	599
30 CFR 56.14132	Surface metal and nonmetal mines	564
30 CFR 56.11001	Surface metal and nonmetal mines	554
30 CFR 57.14100	Underground metal and nonmetal mines	549
30 CFR 47.41	Hazard communication	547
30 CFR 56.4201	Surface metal and nonmetal mines	545
30 CFR 56.12028	Surface metal and nonmetal mines	530
30 CFR 56.12018	Surface metal and nonmetal mines	505

Injury and illness cases at nonmetal mineral mines

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

Degree	Cases
Fatality	14
Permanent disability	29
Days away from work or restricted activity	1,504
No lost time, or an occupational illness	734

What the accident reports at nonmetal mineral mines describe

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

Classification	Reports
Handling of materials	759
Slip or fall of person	525
Handtools (nonpowered)	264
Machinery	241
Hoisting	217
Powered haulage	200
Other	120
Disorders (repeated trauma)	56
Stepping or kneeling on object	31
Fire	28

Equipment named in accident reports at nonmetal mineral mines

Equipment	Reports
Hand tools (not powered)	274
Elevator	228
Hand tools (powered)	82
Front-end loader	81
Forklift	68
Ore haulage trucks - off highway trucks	56
Packaging machine	42
Shovel	34
Bulldozer	33
Conveyor	33

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