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U.S. MINING ENTITIES / OPERATOR / L01838

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Kilgore Contracting

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA OPERATOR IDL01838

MINE PORTFOLIO

55 of 55 mines and facilities

2025-01-01 – 2026-10-18. All statuses records; production reporting is not required.

Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Benjamin4202528 · Active6/8 quarters reportedUtah, UTSurface · MSHA: Construction Sand and Gravel026,32510127.3
Bluffdale Pit4202179 · Active6/8 quarters reportedUtah, UTSurface · MSHA: Construction Sand and Gravel056,19710131.5
Brigham Pit4202523 · Active6/8 quarters reportedBox Elder, UTSurface · MSHA: Construction Sand and Gravel012,00214028.5
Crusher 10504296 · Intermittent6/8 quarters reportedMesa, COSurface · MSHA: Construction Sand and Gravel015,2463018.3
Crusher 20504645 · Intermittent6/8 quarters reportedDelta, COSurface · MSHA: Construction Sand and Gravel018,8410015.0
Crusher 30504593 · Intermittent6/8 quarters reportedEmery, UTSurface · MSHA: Construction Sand and Gravel030,5101131.8
Crusher #60504746 · Intermittent5/8 quarters reportedMesa, COSurface · MSHA: Construction Sand and Gravel011,0760010.5
Erda Pit4201479 · Active6/8 quarters reportedSalt Lake, UTSurface · MSHA: Construction Sand and Gravel06,406008.0
Gentry Pit1001668 · IntermittentMinidoka, IDSurface · MSHA: Construction Sand and Gravel——103.0
Grantsville Pit4202637 · Active6/8 quarters reportedTooele, UTSurface · MSHA: Construction Sand and Gravel020,41224045.0
Grey Goose0503869 · Intermittent6/8 quarters reportedGrand, COSurface · MSHA: Construction Sand and Gravel018,4693022.0
Herriman Pit4201823 · Active6/8 quarters reportedSalt Lake, UTSurface · MSHA: Construction Sand and Gravel012,9484022.0
HIGHLAND PIT4200941 · Active6/8 quarters reportedUtah, UTSurface · MSHA: Construction Sand and Gravel036,75419335.8
HP 300 (Crusher 4)0504594 · Intermittent6/8 quarters reportedDelta, COSurface · MSHA: Construction Sand and Gravel07,6761020.5
Hyrum Pit4202360 · Active6/8 quarters reportedCache, UTSurface · MSHA: Construction Sand and Gravel035,72112036.5
Little Mountain4200400 · Intermittent3/8 quarters reportedBox Elder, UTSurface · MSHA: Construction Sand and Gravel0931504.8
Maryland Creek0503800 · Active6/8 quarters reportedSummit, COSurface · MSHA: Construction Sand and Gravel025,02017048.3
MONA PIT4202212 · Active6/8 quarters reportedJuab, UTSurface · MSHA: Construction Sand and Gravel046,6438037.8
Parley's Stone4202102 · Active6/8 quarters reportedSalt Lake, UTSurface · MSHA: Construction Sand and Gravel026,97811041.8
Pit #1 43rd Ave0202867 · Active6/8 quarters reportedMaricopa, AZSurface · MSHA: Construction Sand and Gravel093,68816335.3
Plant 1 Avondale0203390 · Active6/8 quarters reportedMaricopa, AZSurface · MSHA: Construction Sand and Gravel028,97519133.5
Portable Crusher Unit F4202042 · Intermittent6/8 quarters reportedSweetwater, WYSurface · MSHA: Construction Sand and Gravel031,1097139.5
Stockton Pit4202480 · Active6/8 quarters reportedTooele, UTSurface · MSHA: Construction Sand and Gravel051,52610134.5
Walker Sand & Gravel1000772 · Intermittent6/8 quarters reportedBlaine, IDSurface · MSHA: Construction Sand and Gravel020,276228.5
Washplant 10504873 · Intermittent6/8 quarters reportedMesa, COSurface · MSHA: Construction Sand and Gravel04,7321012.5
Washplant 30504565 · Intermittent6/8 quarters reportedMesa, COSurface · MSHA: Construction Sand and Gravel06,045009.3
Washplant 40503809 · Active6/8 quarters reportedLa Plata, COSurface · MSHA: Construction Sand and Gravel03,9613021.0
WASHPLANT 54201736 · Intermittent6/8 quarters reportedGrand, UTSurface · MSHA: Construction Sand and Gravel07,8920044.5
Wellsville Pit4201960 · Intermittent6/8 quarters reportedCache, UTSurface · MSHA: Construction Sand and Gravel08,6762018.5
West Valley4201980 · Intermittent6/8 quarters reportedSalt Lake, UTSurface · MSHA: Construction Sand and Gravel025,25312034.5
1976 PIONEER PLANT #10504046 · AbandonedMesa, COSurface · MSHA: Construction Sand and Gravel——00—
19 Road Pit0503877 · AbandonedMesa, COSurface · MSHA: Construction Sand and Gravel——00—
Bauer Pit4202465 · AbandonedTooele, UTSurface · MSHA: Construction Sand and Gravel——00—
BRADBURY PIT0503472 · AbandonedMesa, COSurface · MSHA: Construction Sand and Gravel——00—
Buckeye Plant0203165 · Temporarily Idled6/8 quarters reportedMaricopa, AZSurface · MSHA: Construction Sand and Gravel0580001.0
CEDARAPIDS PLANT #2X3100503801 · AbandonedMesa, COSurface · MSHA: Construction Sand and Gravel——00—
CEDAR RAPIDS PLANT #30504559 · AbandonedMoffat, COSurface · MSHA: Construction Sand and Gravel——00—
Cottonwood Quarry0505099 · Abandoned2/8 quarters reportedGrand, COSurface · MSHA: Construction Sand and Gravel00100.5
Crusher 50505047 · Temporarily Idled6/8 quarters reportedLa Plata, COSurface · MSHA: Construction Sand and Gravel01,9660013.0
Elam Pit0503937 · AbandonedMesa, COSurface · MSHA: Construction Sand and Gravel——00—
Extec S-5 Track Mounted Screen sn96170502366 · AbandonedSummit, COSurface · MSHA: Construction Sand and Gravel——00—
Huffer Pit0501950 · AbandonedMesa, COSurface · MSHA: Construction Sand and Gravel——00—
Jaffee Pit0502139 · AbandonedPitkin, COSurface · MSHA: Construction Sand and Gravel——00—
KC-Portable 24801625 · AbandonedSalt Lake, UTSurface · MSHA: Construction Sand and Gravel——00—
KC (WY)-Portable 34801626 · AbandonedSalt Lake, UTSurface · MSHA: Construction Sand and Gravel——00—
Lewis & Lewis, Portable 014801482 · Abandoned1/8 quarters reportedSweetwater, WYSurface · MSHA: Construction Sand and Gravel0520101.0
Metso LT106 Track Mounted Jaw Crusher0504872 · AbandonedRoutt, COSurface · MSHA: Construction Sand and Gravel——00—
Mona4201545 · AbandonedSalt Lake, UTSurface · MSHA: Construction Sand and Gravel——00—
Portable Crusher Unit B4201963 · Abandoned6/8 quarters reportedBannock, IDSurface · MSHA: Construction Sand and Gravel05,849809.0
Portable-JCI 6203 Track Screen1002146 · AbandonedMinidoka, IDSurface · MSHA: Construction Sand and Gravel——00—
Powerscreen 2100-21002147 · AbandonedMinidoka, IDSurface · MSHA: Construction Sand and Gravel——00—
Roadrunner Screen1001916 · AbandonedMinidoka, IDSurface · MSHA: Construction Sand and Gravel——00—
Snowstorm Portable Plant0501013 · AbandonedClear Creek, COSurface · MSHA: Construction Sand and Gravel——00—
Track Plant 10504616 · Temporarily Idled6/8 quarters reportedRoutt, COSurface · MSHA: Construction Sand and Gravel040500—
Walker Sand & Gravel1002021 · AbandonedBlaine, IDSurface · MSHA: Construction Sand and Gravel——00—

Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.

LOCATION

Portfolio map

46 of 55 mines 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.

2025 Q1 – 2026 Q4

JSONCSV

Database snapshot · 2026-10-18. All 55 mines listed under this operator were checked; 35 have reports in the available quarters. Totals use current ownership.

Coal production

0

reported short tons

  1. 2025 Q1 *0
  2. 2025 Q2 *0
  3. 2025 Q3 *0
  4. 2025 Q4 *0
  5. 2026 Q1 *0
  6. 2026 Q2 *0
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

Hours worked

699,608

reported employee hours

  1. 2025 Q1 *80,234
  2. 2025 Q2 *101,435
  3. 2025 Q3 *107,840
  4. 2025 Q4 *126,964
  5. 2026 Q1 *133,073
  6. 2026 Q2 *150,062
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

Tons per hour

0.00

production ÷ hours worked

  1. 2025 Q1 *0.00
  2. 2025 Q2 *0.00
  3. 2025 Q3 *0.00
  4. 2025 Q4 *0.00
  5. 2026 Q1 *0.00
  6. 2026 Q2 *0.00
  7. 2026 Q3—No usable value reported
  8. 2026 Q4 *—No usable value reported

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
Quarterly production, employment and reporting coverage for Arizona Materials
QuarterCoal (short tons)Hours workedTons / hourAvg. employeesCoverage
2025 Q1080,2340.0014532/35 mines reporting
2025 Q20101,4350.0016633/35 mines reporting
2025 Q30107,8400.0016532/35 mines reporting
2025 Q40126,9640.0020034/35 mines reporting
2026 Q10133,0730.0023333/35 mines reporting
2026 Q20150,0620.0024833/35 mines reporting
2026 Q3————No report
2026 Q4————No report

Safety and enforcement

2025-01-01 – 2026-10-18

Violations

225

42 significant & substantial (S&S)

  1. 2025 Q110
  2. 2025 Q259
  3. 2025 Q340
  4. 2025 Q444
  5. 2026 Q129
  6. 2026 Q221
  7. 2026 Q320
  8. 2026 Q4 *2

Accident records

14

0 records classified as fatality

  1. 2025 Q11
  2. 2025 Q21
  3. 2025 Q32
  4. 2025 Q40
  5. 2026 Q15
  6. 2026 Q25
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

101,634.00

213 of 225 violations with amounts

  1. 2025 Q11,818
  2. 2025 Q221,721
  3. 2025 Q314,751
  4. 2025 Q439,096
  5. 2026 Q111,254
  6. 2026 Q29,306
  7. 2026 Q33,688
  8. 2026 Q4 *—

On-site inspection hours

804.00

126 inspections · 126 with hours

  1. 2025 Q161.75
  2. 2025 Q2173.25
  3. 2025 Q3122.00
  4. 2025 Q4137.25
  5. 2026 Q168.50
  6. 2026 Q2109.00
  7. 2026 Q3118.25
  8. 2026 Q4 *14.00

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
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q11021,818.00101261.8
2025-Q2591421,721.001021173.3
2025-Q340714,751.002024122.0
2025-Q4441039,096.000021137.3
2026-Q129511,254.00501568.5
2026-Q22109,306.005015109.0
2026-Q32043,688.000016118.3
2026-Q4 *20—00214.0

Most cited CFR sections

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

SectionViolationsS&S
30 CFR 56.14107Moving machine parts.297
30 CFR 56.12004Electrical conductors.202
30 CFR 56.12032Inspection and cover plates.181
30 CFR 56.14100Safety defects; examination, correction and records.143
30 CFR 56.14112Construction and maintenance of guards.141
30 CFR 56.20003Housekeeping.103
30 CFR 56.4201Inspection.100
30 CFR 56.9300Berms or guardrails.97
30 CFR 56.12008Insulation and fittings for power wires and cables.80
30 CFR 56.11001Safe access.75

Safety activity

  1. violation9906803
    Stockton Pit · 4202480

    56.14112(b) · $151.00 proposed

  2. inspection6790992
    WASHPLANT 5 · 4201736

    Regular Safety and Health Inspection · 16.5 on-site hours

  3. inspectionF03B2EF
    Crusher 3 · 0504593

    Regular Safety and Health Inspection · 8.0 on-site hours

  4. inspectionF02BB5A
    Maryland Creek · 0503800

    Regular Safety and Health Inspection · 13.8 on-site hours

  5. violation5211335
    Maryland Creek · 0503800

    56.14205 · $642.00 proposed

  6. violation5211334
    Maryland Creek · 0503800

    56.4130(b) · $193.00 proposed

  7. accident220261590030
    Benjamin · 4202528

    POWERED HAULAGE · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    An employee was cleaning accumulated mud from around a machine guard when their tool contacted the moving conveyor belt. This contact caused the tool to pull forward, pinching the employee's hand against the gearbox. The incident resulted in lacerations that required medical treatment, including stitches.

  8. inspectionF013F02
    Crusher 1 · 0504296

    Regular Safety and Health Inspection · 3.0 on-site hours

  9. inspectionF0450FC
    Grantsville Pit · 4202637

    Verbal Hazard Complaint Inspections · 1.0 on-site hours

  10. inspectionF0450FB
    Grantsville Pit · 4202637

    Spot Inspection · 1.5 on-site hours

  11. violation5055491
    Grantsville Pit · 4202637

    56.14100(c) · $288.00 proposed

  12. violation5055490
    Grantsville Pit · 4202637

    56.11003 · $288.00 proposed

  13. violation5055489
    Grantsville Pit · 4202637

    56.14107(a) · $432.00 proposed

  14. inspectionF013EF8
    HP 300 (Crusher 4) · 0504594

    Regular Safety and Health Inspection · 4.0 on-site hours

  15. inspectionF0450F9
    Benjamin · 4202528

    Regular Safety and Health Inspection · 6.3 on-site hours

  16. violation5055480
    Benjamin · 4202528

    56.13011 · $151.00 proposed

  17. violation5055479
    Benjamin · 4202528

    56.12004 · $151.00 proposed

  18. violation5058366
    HIGHLAND PIT · 4200941

    41.12 · $151.00 proposed

  19. inspectionF0211F0
    Washplant 4 · 0503809

    Regular Safety and Health Inspection · 4.5 on-site hours

  20. violation5037348
    Washplant 4 · 0503809

    56.18002(b) · $151.00 proposed

  21. accident220261100022
    Pit #1 43rd Ave · 0202867

    HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    EE was changing screens at the washplant and was cutting a piece of rubber using a utility knife. During the cutting motion the knife slipped past the rubber and stabbed the EEs thumb.

  22. violation9826361
    HIGHLAND PIT · 4200941

    56.20010 · $151.00 proposed

  23. accident220261100005
    HIGHLAND PIT · 4200941

    INUNDATION · ACCIDENT ONLY

    Accident narrative

    Highland city started to fill the canal earlier than what was communicated. When the canal was filled (pressurized) the valve that feeds water to the plant was in an open position to prevent water from freezing over the winter months. With the canal being pressurized and the valve in the open position, water started to flow into the pond causing the damn embankment to fail.

  24. inspectionF02D43E
    HIGHLAND PIT · 4200941

    Regular Safety and Health Inspection · 6.8 on-site hours

  25. inspectionF03A027
    Brigham Pit · 4202523

    Regular Safety and Health Inspection · 6.0 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.

SELECTED PORTFOLIO

1 linked controller.

Relationships reflect the selected mine status and current MSHA controller/operator fields.

CONTROLLER / M02046Summit Materials LLC55 selected mines →