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

MINE DETAILS

Williams Sandpit

ActiveSurfaceConstruction Sand and Gravel
MSHA MINE ID1302163
LOCATIONJohnson, IA
PUBLIC RECORD1,125 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

12

6 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q22
  3. 2025 Q36
  4. 2025 Q41
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q33
  8. 2026 Q4 *0

Accident records

2

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q31
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

3,887.00

8 of 12 violations with amounts

  1. 2025 Q1—
  2. 2025 Q2302
  3. 2025 Q33,434
  4. 2025 Q4151
  5. 2026 Q1—
  6. 2026 Q2—
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

109.00

6 inspections · 6 with hours

  1. 2025 Q1—
  2. 2025 Q210.75
  3. 2025 Q350.25
  4. 2025 Q419.00
  5. 2026 Q121.25
  6. 2026 Q2—
  7. 2026 Q37.75
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—000—
2025-Q221302.0000210.8
2025-Q3653,434.0010150.3
2025-Q410151.0000119.0
2026-Q100—10121.3
2026-Q200—000—
2026-Q330—0017.8
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5118980

    56.14100(a)

  2. violation5118979

    56.14101(a)(2)

  3. inspectionF037BE5

    Regular Safety and Health Inspection · 7.8 on-site hours

  4. violation5118978

    56.14207

  5. inspectionF03F344

    Non-Chargeable Accident Investigation · 21.3 on-site hours

  6. accident220260260002

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee fell from dozer track while adding hydraulic oil. Employee lost footing and fell to the ground, landing on frozen surface. Conditions contributing to the accident included frozen ground and elevated work position on equipment. Injury resulted in a hip fracture requiring medical treatment and lost work time.

  7. violation8944938

    56.14100(b) · $151.00 proposed

  8. inspectionF01E350

    Regular Safety and Health Inspection · 19.0 on-site hours

  9. violation9697585

    46.12(a)(2) · S&S · $432.00 proposed

  10. violation9697584

    56.15006 · S&S · $959.00 proposed

  11. violation9697583

    46.5(a) · S&S · $407.00 proposed

  12. violation9697582

    56.12017 · S&S · $818.00 proposed

  13. violation9697581

    56.15006 · S&S · $818.00 proposed

  14. accident220252670002

    ELECTRICAL · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Contractor electrician and another EE went to the GFI, talked about what was happening w/dredge etc. They pulled the handle to trip fuses. EE opened the GFI door and talked about how everything worked. EE looked and tested the fuses down low w/EE's meter then went to test things up higher and that's when EE's meter blew up.

  15. inspectionF01E34C

    Non-Fatal Accident Investigation · 50.3 on-site hours

  16. violation8944928

    Description not reported

  17. inspectionF0167C7

    Compliance Follow-up Inspection · 1.5 on-site hours

  18. inspectionF0167C2

    Regular Safety and Health Inspection · 9.3 on-site hours

  19. violation9695918

    56.14130(c) · $151.00 proposed

  20. violation9695917

    56.14100(c) · S&S · $151.00 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 HIERARCHYS & G Minerals Corp; Pellco Co Inc → S & G Materials → Williams Sandpit
HISTORY RECORDS24 relationships
INTERVAL CHECKPASScontroller/operator overlap
—

S & G Minerals Corp et alcontrolsS & G MaterialsoperatesWilliams Sandpit

msha-controller-operator-history · controller/operator co-tenure derived on mine 1302163
—

Pellco Co InccontrolsS & G MaterialsoperatesWilliams Sandpit

msha-controller-operator-history · controller/operator co-tenure derived on mine 1302163
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

8 historical accident/injury rows; 0 coded fatalities and 223 lost days across the published record.

ACCIDENT + INJURY RECORD4 since 2021
accidentsmine-production-quarterly
02 / COMPLIANCEwatch

Violations and penalties

133 violation rows across the full record; 20 carry an S&S flag and $22,880 appears in current assessed amounts.

ENFORCEMENT ACTIVITY33 since 2021
inspectionsviolationsassessed-violationsorders-107a
03 / HEALTHcontext

Occupational health samples

17 personal. 0 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 EXPOSURE17 samples
personal-health-samples
04 / PRODUCTIONcontext

Quarterly production and employment

5K employee hours and 8 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

1 contested-violation rows, 1 civil-penalty docket/decision rows, and 4 conference records linked by issuance number.

POST-ISSUANCE LIFECYCLE6 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 CONTEXT3 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations
07 / INSPECTIONScontext

Inspections

68 inspection events and 992 published inspection hours across the historical record.

OVERSIGHT COVERAGE17 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
511898056.14100(a)Citation
511897956.14101(a)(2)Citation
511897856.14207Citation
894493856.14100(b)Citation
969758546.12(a)(2)S&S
969758456.15006S&S
969758346.5(a)S&S
969758256.12017S&S
OTHER HEALTH SAMPLES8 latest shown

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

Respirable dust, <.1mgMechanic
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgUtility Man
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, total, <1% QtzMechanic
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgDredge/Barge Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader Operator
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 · contractors8Apr 10, 2002—Jan 15, 2026mine-keyed
Addresses of Recordidentity · logistics1Dec 8, 2011—Dec 8, 2011mine-keyed
Assessed Violationscompliance · legal128Apr 27, 2000—Oct 22, 2025mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal1Feb 12, 2014—Feb 12, 2014mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal4Aug 18, 2004—Feb 11, 2026mine-keyed
Contested Violationscompliance · legal1Jun 5, 2013—Jun 5, 2013mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety410Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety86Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Jan 1, 1989—Jan 1, 1989mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance211Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance54Not published—Not publishedmine-keyed
Inspectionssafety · compliance68Apr 27, 2000—Aug 19, 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 · safety17Mar 24, 2010—Oct 23, 2025mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal133Apr 27, 2000—Aug 20, 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.