MSHA DATABASEMSHA records · 15 contributing sources · snapshot Oct 13, 2026

MINE DETAILS

Canaan

ActiveSurfaceCrushed, Broken Limestone NEC
MSHA MINE ID0600019
LOCATIONLitchfield, CT
PUBLIC RECORD4,094 linked rows

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

89

17 significant & substantial (S&S)

  1. 2025 Q115
  2. 2025 Q243
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q231
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

4

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q12
  6. 2026 Q20
  7. 2026 Q32
  8. 2026 Q4 *0

Proposed penalties · USD

34,722.00

89 of 89 violations with amounts

  1. 2025 Q16,391
  2. 2025 Q220,833
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1—
  6. 2026 Q27,498
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

321.00

6 inspections · 6 with hours

  1. 2025 Q179.50
  2. 2025 Q2115.75
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q150.00
  6. 2026 Q275.75
  7. 2026 Q3—
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q11536,391.0000279.5
2025-Q243820,833.00001115.8
2025-Q300—000—
2025-Q400—000—
2026-Q100—20150.0
2026-Q23167,498.0000275.8
2026-Q300—200—
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. accident220262190028

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    A miner was walking to the locker room from RM area when they tripped on a layflat rug and fell down. EE was able call for assistance which arrived quickly. First aid started with a cool compress. The miner was taken to the local urgent care for evaluation which determined they sustained a right ankle sprain. A splint and crutches were provided, a follow up provided a walking boot.

  2. accident220261950035

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    As employee was climbing into their truck at the mine, their hand slipped off the handhold and they fell to the ground. Employee sustained a strain to their right hip and back.

  3. inspectionF039DAB

    Compliance Follow-up Inspection · 0.8 on-site hours

  4. violation5079508

    56.14100(c) · $151.00 proposed

  5. violation5079507

    56.4201(b) · $151.00 proposed

  6. violation5079506

    56.14100(c) · $151.00 proposed

  7. violation5079505

    47.44(b) · $151.00 proposed

  8. violation5079504

    56.14103(b) · $151.00 proposed

  9. violation5079503

    56.14101(a)(3) · $151.00 proposed

  10. violation5079502

    56.14100(c) · $151.00 proposed

  11. violation5079501

    56.14107(a) · $151.00 proposed

  12. violation5076999

    56.12008 · $151.00 proposed

  13. violation5076998

    56.12004 · $151.00 proposed

  14. violation5077000

    56.14105 · S&S · $336.00 proposed

  15. violation5076997

    56.14107(a) · S&S · $959.00 proposed

  16. violation5076996

    56.13011 · $151.00 proposed

  17. violation5076995

    56.14107(a) · $151.00 proposed

  18. violation5076993

    56.11002 · $151.00 proposed

  19. violation5076992

    56.20003(c) · $151.00 proposed

  20. violation5076991

    56.4601 · $151.00 proposed

  21. violation5076990

    56.14205 · S&S · $432.00 proposed

  22. violation5076989

    56.14100(c) · $151.00 proposed

  23. violation5076988

    56.4104(a) · $151.00 proposed

  24. violation5076987

    47.44(b) · $151.00 proposed

  25. violation5076986

    56.20003(a) · S&S · $697.00 proposed

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.

CURRENT HIERARCHYMinerals Technologies Inc → Specialty Minerals Inc → Canaan
HISTORY RECORDS13 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Minerals Technologies InccontrolsSpecialty Minerals IncoperatesCanaan

msha-controller-operator-history · controller/operator co-tenure derived on mine 0600019
Other 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 / SAFETYwatch

Accidents and injuries

130 historical accident/injury rows; 0 coded fatalities and 1,630 lost days across the published record.

ACCIDENT + INJURY RECORD6 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

767 violation rows across the full record; 124 carry an S&S flag and $349,238 appears in current assessed amounts.

ENFORCEMENT ACTIVITY241 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

Occupational health samples

178 personal. 22 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 EXPOSURE178 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

14K employee hours and 36 summed average employees across reported subunits in the latest published quarter.

2026-Q20 tons
mine-production-quarterlymine-production-yearly
05 / LEGALwatch

Contests, conferences and decisions

50 contested-violation rows, 50 civil-penalty docket/decision rows, and 35 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE135 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions
06 / 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 CONTEXT18 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

105 inspection events and 4K published inspection hours across the historical record.

OVERSIGHT COVERAGE23 since 2021
inspectionsviolations

HEALTH SAMPLING

Silica and quartz

Matching records00 coal · 0 personal · 0 area
Sample status0 not voided0 voided · 0 status not reported
Personal samples with C/E > 1—0 published ratios · not a citation count
2026 · No reported dates in this selection
Date / sampleDataset / analyteOccupation / areaMeasurementSample statusPublished action
No silica records match these filters. Missing samples do not establish safe conditions.
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.

RECENT PUBLIC RECORDS

Recent violations and samples

Latest records retained for inspection; aggregates above use the full source history.

VIOLATIONS12 latest shown
507950856.14100(c)Citation
507950756.4201(b)Citation
507950656.14100(c)Citation
507950547.44(b)Citation
507950456.14103(b)Citation
507950356.14101(a)(3)Citation
507950256.14100(c)Citation
507950156.14107(a)Citation
OTHER HEALTH SAMPLES8 latest shown

Coal dust, noise and other contaminants. Silica records above ↑

Respirable dust, <.1mgComplete Load-Haul-Dump
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgShovel Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgCrusher Oper/Worker
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Nuisance dust, total, <1% QtzDry Screen Plant Operator
C/E: 00.78Concentration: 0007.80 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzBagging Operator
C/E: 01.10Concentration: 0011.03 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzDry Screen Plant Operator
C/E: 02.26Concentration: 0022.56 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzDry Screen Plant Operator
C/E: 02.99Concentration: 0029.85 · limit: 0010.00Source unit unspecified
Nuisance dust, total, <1% QtzDry Screen Plant Operator
C/E: 02.37Concentration: 0023.70 · limit: 0010.00Source unit unspecified

SOURCE COVERAGE

Reporting dates and coverage

15 datasets contain linked records. Missing datasets are listed below.

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors130Jan 4, 2000—Jul 28, 2026mine-keyed
Addresses of Recordidentity · logistics1Feb 23, 1983—Feb 23, 1983mine-keyed
Assessed Violationscompliance · legal763Jun 6, 2000—May 21, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal50Apr 2, 2010—Jun 13, 2024mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal35Nov 10, 2015—Mar 11, 2021mine-keyed
Contested Violationscompliance · legal50Jul 8, 2008—May 10, 2023mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety1,314Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety300Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance1Jan 1, 1950—Jan 1, 1950mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance318Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance105Mar 28, 2000—Jun 5, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety—No published rowsabsent / not applicable
Metal and Nonmetal Personal Health Sampleshealth · safety178Feb 14, 2001—May 21, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal767Jun 6, 2000—May 21, 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.