MINE DETAILS
Tulsa Plant
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Tulsa Plant36.16444, -95.81500Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. MSHA quarterly production and employment reports.
Coal production
0reported short tons
Hours worked
393,069reported 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 | 0 | 62,813 | 0.00 | 121 | 1/1 mines reporting |
| 2025 Q2 | 0 | 66,490 | 0.00 | 120 | 1/1 mines reporting |
| 2025 Q3 | 0 | 64,280 | 0.00 | 114 | 1/1 mines reporting |
| 2025 Q4 | 0 | 64,321 | 0.00 | 121 | 1/1 mines reporting |
| 2026 Q1 | 0 | 65,505 | 0.00 | 120 | 1/1 mines reporting |
| 2026 Q2 | 0 | 69,660 | 0.00 | 121 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
9023 significant & substantial (S&S)
Accident records
90 records classified as fatality
Proposed penalties · USD
169,788.0090 of 90 violations with amounts
On-site inspection hours
213.758 inspections · 8 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 | — | 2 | 0 | 2 | 26.0 |
| 2025-Q2 | 25 | 6 | 57,042.00 | 0 | 0 | 1 | 52.0 |
| 2025-Q3 | 9 | 5 | 54,942.00 | 6 | 0 | 3 | 38.8 |
| 2025-Q4 | 34 | 7 | 24,102.00 | 1 | 0 | 1 | 52.5 |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q2 | 22 | 5 | 33,702.00 | 0 | 0 | 1 | 44.5 |
| 2026-Q3 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
MACHINERY · PERM TOT OR PERM PRTL DISABLTY
Accident narrative
A process attendant clearing material under the East/West CCDC screw reached into a leak hole, where their finger contacted the moving screw, amputating its tip. They reported the incident immediately, received first aid, and was taken to the ER for a tetanus shot and further treatment.
FIRE · ACCIDENT ONLY
Accident narrative
11:40pm a fire was discovered on hot belt 3 due to leak-by from the clinker gate. When the material was moved outside, there was no visual verification it was still going to the belt. The area was evacuated, 911 was called, and fire trucks arrived shortly after. Power was shut off and locked out for safety. The fire was out by 12:13am.
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
Accident narrative
While diverting material to another chute, a process attendant manually assisted a gate closure using a rock bar. During the attempt, attendant was using a strong amount of force to hit the gate. Their hand shifted and left pinky was caught between the bar and equipment, causing a laceration and fractured fingertip. Attendant was transferred to the local ER and received 7 stitches.
IGNITION OR EXPLOSION OF GAS OR DUST · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
A maintenance apprentice was assisting with coal mill adjustments was injured after slag from nearby hot work ignited a gas leak in a burner pipe, causing a flashover and backflash through the kiln. The incident led to a diagnosis with lifting restrictions.
IGNITION OR EXPLOSION OF GAS OR DUST · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
A mechanic was performing adjustments on the coal and was injured after slag from nearby hot work ignited a gas leak in a burner pipe, causing a flashover and backflash through the kiln. The force caused the mechanic to fall back and hit EE's thigh on a nearby handrail resulting in a contusion. The mechanic was given restrictions.
IGNITION OR EXPLOSION OF GAS OR DUST · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
During hot work on a coal pipe, slag fell into the burner pipe and ignited a combustible source, causing a flashover into the kiln. A backflash returned to the coal mill, where three other mechanics were working. The three mechanics were taken to the emergency room and were given diagnosis and work restrictions
DISORDERS (PHYSICAL AGENTS) · OCCUPATNAL ILLNESS NOT DEG 1-6
Accident narrative
Process attendant showed signs of heat exhaustion, including feeling hot and a headache when trying to unplug the kiln feed elevator with an air lance. They came down to the ground and their symptoms worsened, prompting EMS response. Employee was treated with an IV, diagnosed with heat exhaustion and released the same day.
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Utility operator was cutting a piece of vacuum hose towards EE's body and cut self in the upper abdominal area. Employee received approximate 1.5" long laceration and was taken to the hospital and received 8 staples.
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
A mechanic and mechanic apprentice were horse playing in the maintenance shop. When the apprentice went to plant their right knee, EE fell and hit their right knee on the floor and heard a pop. The employee has been diagnosed with a fractured kneecap and will undergo further evaluation.
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.
Holcim LtdcontrolsLaFarge Building Materials IncorporatedoperatesTulsa Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 3400026Holcim LtdcontrolsLafarge North AmericaoperatesTulsa Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 3400026Eagle Materials InccontrolsCentral Plains Cement Co.operatesTulsa Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 3400026Lafarge S AcontrolsLafarge North AmericaoperatesTulsa Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 3400026Lafarge S AcontrolsLaFarge Building Materials IncorporatedoperatesTulsa Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 3400026Blue Circle Industries PlccontrolsBlue Circle IncoperatesTulsa Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 3400026Martin Marietta Materials InccontrolsMartin Marietta CementoperatesTulsa Plant
msha-controller-operator-history · controller/operator co-tenure derived on mine 3400026Other 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.
Accidents and injuries
213 historical accident/injury rows; 0 coded fatalities and 2,246 lost days across the published record.
accidentsmine-production-quarterlyViolations and penalties
1,152 violation rows across the full record; 284 carry an S&S flag and $906,976 appears in current assessed amounts.
inspectionsviolationsassessed-violationsorders-107aOccupational health samples
105 personal. 12 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.
personal-health-samplesQuarterly production and employment
70K employee hours and 121 summed average employees across reported subunits in the latest published quarter.
mine-production-quarterlymine-production-yearlyContests, conferences and decisions
104 contested-violation rows, 104 civil-penalty docket/decision rows, and 13 conference records linked by issuance number.
conferencescontested-violationscivil-penalty-dockets-decisionsContractors
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.
contractor-production-quarterlycontractor-production-yearlyaccidentsviolationsInspections
124 inspection events and 5K published inspection hours across the historical record.
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 18, 2026. 33 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 |
|---|---|---|---|---|---|
| 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.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
Coal dust, noise and other contaminants. Silica records above ↑
SOURCE COVERAGE
Reporting dates and coverage
15 datasets contain linked records. Missing datasets are listed below.
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.