MINE DETAILS
Ima Mine
MSHA MINE ID1000224
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Ima Mine44.53250, -113.69278Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
0reported short tons
Hours worked
8,954reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | 0 | 8,954 | 0.00 | 16 | 1/1 mines reporting |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
322 significant & substantial (S&S)
Accident records
00 records classified as fatality
Proposed penalties · USD
3,256.0019 of 32 violations with amounts
On-site inspection hours
96.7511 inspections · 11 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q2 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q3 | 2 | 0 | 168.00 | 0 | 0 | 2 | 9.5 |
| 2025-Q4 | 3 | 0 | 453.00 | 0 | 0 | 1 | 5.5 |
| 2026-Q1 | 16 | 0 | 1,729.00 | 0 | 0 | 2 | 25.8 |
| 2026-Q2 | 4 | 0 | 453.00 | 0 | 0 | 2 | 17.3 |
| 2026-Q3 | 7 | 2 | 453.00 | 0 | 0 | 3 | 38.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 1 | 0.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Regular Safety and Health Inspection · 0.0 on-site hours
57.5060(b)(3) · S&S
Spot Inspection · 3.5 on-site hours
62.130(c)
57.4201(a)(5)
57.14100(c) · S&S
Verbal Hazard Complaint Inspections · 23.5 on-site hours
57.12008 · $151.00 proposed
57.4402 · $151.00 proposed
57.4201(a)(2) · $151.00 proposed
Regular Safety and Health Inspection · 11.8 on-site hours
57.4402 · $151.00 proposed
57.12018 · $151.00 proposed
57.12008 · $151.00 proposed
Regular Safety and Health Inspection · 10.0 on-site hours
57.5041
Spot Inspection · 7.3 on-site hours
Compliance Follow-up Inspection · 9.5 on-site hours
57.4361(c)
57.11053
57.8520
57.12028 · $151.00 proposed
57.4361(c)
57.4361(b)(1)
57.11053
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
OWNERSHIP
Operator and controller history
Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.
—
American Tungsten CorpcontrolsAmerican Tungsten LtdoperatesIma Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 1000224—
Inspiration Development CompanycontrolsInspiration Development CompanyoperatesIma Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 1000224Other historical summaries · source-specific periods
RECORD SUMMARY
Production, safety and enforcement
These summaries use the periods stated on each card, independently of the reporting period above.
01 / SAFETYneutral
Accidents and injuries
0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
ACCIDENT + INJURY RECORD0 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
32 violation rows across the full record; 2 carry an S&S flag and $3,256 appears in current assessed amounts.
ENFORCEMENT ACTIVITY32 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
13 personal; 2 area. 2 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
OCCUPATIONAL EXPOSURE15 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
9K employee hours and 16 summed average employees across reported subunits in the latest published quarter.
2025-Q40 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
3 contested-violation rows, 3 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE6 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions06 / CONTRACTORScontext
Contractors
Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
ENTITY-LEVEL CONTEXT1 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
11 inspection events and 305 published inspection hours across the historical record.
OVERSIGHT COVERAGE11 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 1 silica records across the mine’s published history.
Personal silica samples · concentration / limit
Quarterly mean · published C/E ratio
— No eligible measurements. * Quarter in progress. Means describe the available samples, not average exposure across the mine.
Quartz % is the sample’s quartz content; µg/m³ is its reported concentration. Personal C/E is the ratio to the limit published with that sample. Personal and area concentration units and void status are not specified in those source files.
| Date / sample | Dataset / analyte | Occupation / area | Measurement | Sample status | Published action |
|---|---|---|---|---|---|
| 000000202603483800 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Drill Helper | 0.29× published limitConcentration: 0000.32 · limit: 0001.11Source unit unspecified | Not reported | NO ACTIONInspection F02A279 |
Sources and interpretation
- Coal means use numeric concentrations from samples marked not voided, excluding control/invalid sample types and dates after the snapshot. Missing values remain null; reported zeroes remain zero.
- Quarterly means describe available samples, not mine-wide or worker-average exposure. Quarters with no eligible measurements remain empty; the current quarter is partial.
- Personal C/E is MSHA's published concentration-to-limit ratio. A value above 1 is not by itself a citation or a determination under the 2024 silica rule. Personal and area files do not publish a void-status field.
- Area records include bulk-dust analyses and are kept separate from personal exposure results. Their concentration units are not specified in the source dictionary.
- Missing samples do not establish safe conditions. Coal quartz percentage and concentration are separate measures. No compliance threshold is inferred for coal samples.
Coal quartz field definitions ↗Metal/nonmetal personal field definitions ↗Metal/nonmetal area field definitions ↗
EIA + TITLE 30
EIA production and cited regulations
EIA annual figures are reported separately from MSHA. Regulation links use the current eCFR snapshot.
Not present in the 2024 EIA coal workbook.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
30 CFR 57.5060Limit on exposure to diesel particulate matter.1 recent row ↗30 CFR 62.130Permissible exposure level.1 recent row ↗30 CFR 57.4201Inspection.2 recent rows ↗30 CFR 57.14100Safety defects; examination, correction and records.1 recent row ↗30 CFR 57.12008Insulation and fittings for power wires and cables.2 recent rows ↗30 CFR 57.4402Safety can use.2 recent rows ↗30 CFR 57.12018Identification of power switches.1 recent row ↗30 CFR 57.5041Smoking prohibition.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
505627457.5060(b)(3)S&S
505626962.130(c)Citation
505626857.4201(a)(5)Citation
505626757.14100(c)S&S
505666057.12008Citation
505665957.4402Citation
505665857.4201(a)(2)Citation
505622357.4402Citation
Coal dust, noise and other contaminants. Silica records above ↑
TC from EC @ 160Front-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
TC from EC @ 160Diamond Drill Operator
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
ORGANIC CARBONDiamond Drill Operator
C/E: 00.00Concentration: 0053.00 · limit: 0000.00Source unit unspecified
EC @ 160Diamond Drill Operator
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
ORGANIC CARBONFront-end Loader Operator
C/E: 00.00Concentration: 0215.00 · limit: 0000.00Source unit unspecified
EC @ 160Front-end Loader Operator
C/E: 01.19Concentration: 0190.00 · limit: 0160.00Source unit unspecified
TC @ 160Diamond Drill Operator
C/E: 00.00Concentration: 0000.00 · limit: 0160.00Source unit unspecified
ORGANIC CARBONDiamond Drill Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
14 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors—No published rowsabsent / not applicable
Addresses of Recordidentity · logistics1Aug 22, 2025—Aug 22, 2025mine-keyed
Assessed Violationscompliance · legal19Aug 27, 2025—Aug 5, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal3Not published—Not publishedmine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal—No published rowsabsent / not applicable
Contested Violationscompliance · legal3May 19, 2026—May 19, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety14Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety10Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Jan 1, 1950—Aug 20, 2025mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance3Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance3Not published—Not publishedmine-keyed
Inspectionssafety · compliance11Aug 27, 2025—Oct 5, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety2Aug 26, 2026—Aug 26, 2026mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety13Aug 26, 2026—Aug 26, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal32Aug 27, 2025—Sep 11, 2026mine-keyed
107(a) Orders Issuedsafety · compliance—No published rowsabsent / not applicable
NOTES
Limitations
- Contractor production is entity-level and is never represented as mine-attributable.
- Missing rows can mean no event, publication delay, identity mismatch, or inapplicability.