MSHA DATABASEMSHA records · 15 contributing sources · snapshot Oct 18, 2026

MINE DETAILS

ADAMS

ActiveSurfaceCrushed, Broken Limestone NEC
MSHA MINE ID1900035
LOCATIONBerkshire, MA
PUBLIC RECORD5,803 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 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

192

29 significant & substantial (S&S)

  1. 2025 Q171
  2. 2025 Q261
  3. 2025 Q32
  4. 2025 Q40
  5. 2026 Q123
  6. 2026 Q233
  7. 2026 Q32
  8. 2026 Q4 *0

Accident records

3

0 records classified as fatality

  1. 2025 Q11
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q41
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

54,855.00

190 of 192 violations with amounts

  1. 2025 Q117,806
  2. 2025 Q214,751
  3. 2025 Q31,842
  4. 2025 Q4—
  5. 2026 Q18,033
  6. 2026 Q212,423
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

523.25

17 inspections · 17 with hours

  1. 2025 Q1154.75
  2. 2025 Q2128.50
  3. 2025 Q318.00
  4. 2025 Q4—
  5. 2026 Q197.00
  6. 2026 Q2115.25
  7. 2026 Q39.75
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q171917,806.00102154.8
2025-Q261714,751.00002128.5
2025-Q3221,842.0000618.0
2025-Q400—100—
2026-Q12348,033.0000397.0
2026-Q233512,423.00003115.3
2026-Q322—1019.8
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5076734

    56.14201(b) · $151.00 proposed

  2. violation5076733

    56.14132(a) · $209.00 proposed

  3. violation5076915

    56.14100(c) · S&S · $151.00 proposed

  4. violation5076914

    56.16006 · $151.00 proposed

  5. violation5076913

    56.4104(a) · $267.00 proposed

  6. violation5076912

    56.12025 · $151.00 proposed

  7. violation5076911

    56.12032 · $1,037.00 proposed

  8. violation5076910

    56.12004 · $151.00 proposed

  9. violation5076909

    56.14112(a)(1) · $177.00 proposed

  10. violation5076908

    56.4601 · $151.00 proposed

  11. violation5076907

    56.4104(a) · $267.00 proposed

  12. violation5076906

    56.12018 · $1,126.00 proposed

  13. violation5076905

    56.12008 · $151.00 proposed

  14. violation5076904

    56.12008 · $151.00 proposed

  15. violation5076903

    56.14107(a) · $592.00 proposed

  16. inspectionF01D3F9

    Regular Safety and Health Inspection · 92.5 on-site hours

  17. accident220261590002

    SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    While walking into a building, a miner slipped on a walkway and attempted to brace themselves to prevent a fall. Miner was able to stop the fall but reported right shoulder discomfort. Physician approved to continue work without restrictions. After continued soreness an MRI resulted in a slight tear on 5/29/2026. Operator received documentation on 6/2/2026.

  18. inspectionF0237D3

    Compliance Follow-up Inspection · 3.0 on-site hours

  19. violation5074420

    56.14100(c) · S&S · $883.00 proposed

  20. inspectionF014FB5

    103 (g) Written Notification Hazard Complaint Inspectio · 5.3 on-site hours

  21. inspectionF014FB6

    Spot Inspection · 5.0 on-site hours

  22. violation5074419

    56.11001 · S&S · $959.00 proposed

  23. inspectionF0109E6

    Compliance Follow-up Inspection · 1.3 on-site hours

  24. inspectionF013E9E

    Compliance Follow-up Inspection · 2.5 on-site hours

  25. inspectionF0109DF

    Compliance Follow-up Inspection · 1.0 on-site hours

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

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 → ADAMS
HISTORY RECORDS13 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

Minerals Technologies InccontrolsSpecialty Minerals IncoperatesADAMS

msha-controller-operator-history · controller/operator co-tenure derived on mine 1900035
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

95 historical accident/injury rows; 1 coded fatalities and 994 lost days across the published record.

ACCIDENT + INJURY RECORD15 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

1,252 violation rows across the full record; 202 carry an S&S flag and $493,597 appears in current assessed amounts.

ENFORCEMENT ACTIVITY472 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHwatch

Occupational health samples

123 personal. 6 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 EXPOSURE123 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

58K employee hours and 130 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

97 contested-violation rows, 97 civil-penalty docket/decision rows, and 32 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE226 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

132 inspection events and 7K published inspection hours across the historical record.

OVERSIGHT COVERAGE46 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
507957650.10(b)S&S
507957556.14105S&S
507861056.12032Citation
507860956.12032Citation
507697656.14100(c)Citation
507697556.4601Citation
507697456.14112(b)Citation
507697356.12018Citation
OTHER HEALTH SAMPLES8 latest shown

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

Calcium oxideTruck Driver
C/E: 00.27Concentration: 0001.34 · limit: 0005.00Source unit unspecified
Calcium oxideBagging Operator
C/E: 00.82Concentration: 0004.10 · limit: 0005.00Source unit unspecified
Calcium oxideBagging Operator
C/E: 00.18Concentration: 0000.92 · limit: 0005.00Source unit unspecified
Calcium oxideTruck Driver
C/E: 01.30Concentration: 0006.48 · limit: 0005.00Source unit unspecified
Calcium oxideKiln/Dryer Operator
C/E: 00.05Concentration: 0000.24 · limit: 0005.00Source unit unspecified
Respirable dust, <.1mgRotary Bucket Ex. Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzTruck Driver
C/E: 00.00Concentration: 0000.29 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgMechanic
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified

SOURCE COVERAGE

Reporting dates and coverage

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

DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors95Jan 13, 2000—Aug 28, 2026mine-keyed
Addresses of Recordidentity · logistics1Feb 22, 1983—Feb 22, 1983mine-keyed
Assessed Violationscompliance · legal1,242Feb 29, 2000—Apr 21, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal97Jun 18, 2008—Nov 25, 2025mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal32Oct 12, 2001—Aug 25, 2023mine-keyed
Contested Violationscompliance · legal97Jul 27, 2006—Mar 5, 2025mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety1,924Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety409Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance1Jan 1, 1950—Jan 1, 1950mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance316Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance132Feb 28, 2000—Sep 1, 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 · safety123Sep 13, 2001—May 19, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal1,252Feb 29, 2000—Sep 1, 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.