MINE DETAILS
HAVRE DE GRACE QUARRY
MSHA MINE ID1800657
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- HAVRE DE GRACE QUARRY39.56833, -76.10028Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. MSHA quarterly production and employment reports.
Coal production
—reported short tons
Hours worked
—reported employee hours
Tons per hour
—production ÷ 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 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-17
Violations
91 significant & substantial (S&S)
Accident records
60 records classified as fatality
Proposed penalties · USD
1,591.009 of 9 violations with amounts
On-site inspection hours
91.006 inspections · 6 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 | — | 0 | 0 | 0 | — |
| 2025-Q2 | 0 | 0 | — | 2 | 0 | 0 | — |
| 2025-Q3 | 3 | 0 | 453.00 | 0 | 0 | 1 | 25.3 |
| 2025-Q4 | 0 | 0 | — | 2 | 0 | 0 | — |
| 2026-Q1 | 0 | 0 | — | 1 | 0 | 1 | 25.0 |
| 2026-Q2 | 1 | 0 | 151.00 | 1 | 0 | 1 | 6.0 |
| 2026-Q3 | 5 | 1 | 987.00 | 0 | 0 | 3 | 34.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Compliance Follow-up Inspection · 0.5 on-site hours
Compliance Follow-up Inspection · 0.0 on-site hours
56.14101(a)(2) · $151.00 proposed
46.3(a) · $151.00 proposed
56.11001 · S&S · $267.00 proposed
56.14100(b) · $267.00 proposed
56.14101(a)(2) · $151.00 proposed
Regular Safety and Health Inspection · 34.3 on-site hours
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was performing maintenance on the 992K loader bucket. While EE was swapping out the bucket teeth, EE sustained an injury to EE's left middle finger.
Verbal Hazard Complaint Inspections · 6.0 on-site hours
56.20011 · $151.00 proposed
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Loose clothing got caught on rebar causing trip.
Regular Safety and Health Inspection · 25.0 on-site hours
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
Accident narrative
An employee was cutting a hole in a urethane cover with a blade to access the fill plug when the blade slipped and cut into their hand, causing a laceration between the thumb and index finger.
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was attempting to remove a screen from the lower deck, when the screen became stuck. The employee chipped out some frozen material and EE attempted to remove the screen again. As the screen came loose, the employee jolted backwards and hit EE's head on a crossmember in the screen. The employee decided to seek out medical attention on 12/17/25.
56.14109(b)(2) · $151.00 proposed
56.14207 · $151.00 proposed
56.20003(a) · $151.00 proposed
Regular Safety and Health Inspection · 25.3 on-site hours
OTHER · INJURIES DUE TO NATURAL CAUSES
Accident narrative
Employee was found laying on the ground unresponsive in the shop, EE was then transported to a local medical facility via ambulance
HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY
Accident narrative
On 4/28/25, an employee felt a pop in EE's upper back while using a sledgehammer in the gyratory crusher. Did not seek medical treatment until 4/30/2025.
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.
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.
—
Vulcan Materials CompanycontrolsFlorida Rock Industries IncoperatesHAVRE DE GRACE QUARRY
msha-controller-operator-history · controller/operator co-tenure derived on mine 1800657—
Vulcan Materials CompanycontrolsVulcan Construction Materials, LLCoperatesHAVRE DE GRACE QUARRY
msha-controller-operator-history · controller/operator co-tenure derived on mine 1800657—
Legacy Vulcan Corp (Form:Vulcan Materials Co)controlsVulcan Construction Materials, LLCoperatesHAVRE DE GRACE QUARRY
msha-controller-operator-history · controller/operator co-tenure derived on mine 1800657—
Florida Rock Industries InccontrolsFlorida Rock Industries IncoperatesHAVRE DE GRACE QUARRY
msha-controller-operator-history · controller/operator co-tenure derived on mine 1800657Other 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
83 historical accident/injury rows; 0 coded fatalities and 1,585 lost days across the published record.
ACCIDENT + INJURY RECORD15 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
173 violation rows across the full record; 42 carry an S&S flag and $32,653 appears in current assessed amounts.
ENFORCEMENT ACTIVITY27 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
51 personal. 1 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 EXPOSURE51 samples
personal-health-samples04 / PRODUCTIONcontext
Quarterly production and employment
45K employee hours and 75 summed average employees across reported subunits in the latest published quarter.
2002-Q40 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
8 contested-violation rows, 14 civil-penalty docket/decision rows, and 22 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE44 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions06 / 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 CONTEXT23 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
84 inspection events and 2K published inspection hours across the historical record.
OVERSIGHT COVERAGE16 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 17, 2026. 16 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.
Not present in the 2024 EIA coal workbook.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
30 CFR 56.14101Brakes.3 recent rows ↗30 CFR 46.3Training plans.1 recent row ↗30 CFR 56.11001Safe access.1 recent row ↗30 CFR 56.14100Safety defects; examination, correction and records.1 recent row ↗30 CFR 56.20011Barricades and warning signs.1 recent row ↗30 CFR 56.14109Unguarded conveyors with adjacent travelways.1 recent row ↗30 CFR 56.14207Parking procedures for unattended equipment.1 recent row ↗30 CFR 56.20003Housekeeping.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
507765156.14101(a)(2)Citation
507765046.3(a)Citation
507764956.11001S&S
507764856.14100(b)Citation
507764756.14101(a)(2)Citation
507563356.20011Citation
507228056.14109(b)(2)Citation
507227956.14207Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgLaborer, Bullgang
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
Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Zinc oxide fumesWelder, etc.
C/E: 00.03Concentration: 0000.15 · limit: 0005.00Source unit unspecified
Vanadium fumesWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0050.00Source unit unspecified
Nickel fumesWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0001.00Source unit unspecified
Molybdenum fumesWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0010.00Source unit unspecified
Manganese fumesWelder, etc.
C/E: 00.02Concentration: 0000.12 · limit: 0005.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
15 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors83May 1, 2000—Jun 6, 2026mine-keyed
Addresses of Recordidentity · logistics1May 17, 1978—May 17, 1978mine-keyed
Assessed Violationscompliance · legal168Feb 15, 2000—Aug 5, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal14Dec 8, 2004—Oct 17, 2023mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal22Jun 21, 2004—Mar 14, 2024mine-keyed
Contested Violationscompliance · legal8Mar 4, 2004—Jun 29, 2022mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety3,011Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety631Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance4Mar 9, 1978—Nov 16, 2007mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance36Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance84Feb 15, 2000—Aug 17, 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 · safety51Aug 13, 2003—Aug 5, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal173Feb 15, 2000—Aug 5, 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.