{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"3301385","name":"COLUMBUS GRAVEL-319","status":"Abandoned","status_date":"2002-02-28","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"OH","county":"Franklin","nearest_town":"","operator_id":"L00208","operator_name":"Martin Marietta Aggregates","controller_id":"M00174","controller_name":"Martin Marietta Materials Inc","district":"M2","office":"Hebron OH Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":10,"registeredSources":20,"sourceRows":47},"relationships":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-17T05:35:58.500035+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"operator":{"type":"operator","id":"L00208","name":"Martin Marietta Aggregates"},"controller":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00109","name":"American Aggregates Corp"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1950-01-01","validTo":"1987-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L00109|1950-01-01|1987-02-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00014","name":"American Aggregates Corp"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|M00014|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00014","name":"American Aggregates Corp"},"object":{"type":"operator","id":"L00109","name":"American Aggregates Corp"},"validFrom":"1950-01-01","validTo":"1987-02-28","current":false,"derived":true,"evidenceMineId":"3301385","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L00109|1950-01-01|M00014|1950-01-01|101410"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|M00174|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01219","name":"Consolidated Gold Fields Limited"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1987-02-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|M01219|1987-02-04|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10003","name":"American Aggregates Corp"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1987-03-01","validTo":"1989-08-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L10003|1987-03-01|1989-08-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01219","name":"Consolidated Gold Fields Limited"},"object":{"type":"operator","id":"L10003","name":"American Aggregates Corp"},"validFrom":"1987-03-01","validTo":"1989-08-09","current":false,"derived":true,"evidenceMineId":"3301385","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L10003|1987-03-01|M01219|1987-02-04|117564"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1989-03-10","validTo":"1990-02-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|M00521|1989-03-10|1990-02-01"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11562","name":"American Aggregates Corp"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1989-08-10","validTo":"1990-02-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L11562|1989-08-10|1990-02-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00521","name":"Hanson PLC"},"object":{"type":"operator","id":"L11562","name":"American Aggregates Corp"},"validFrom":"1989-08-10","validTo":"1990-02-01","current":false,"derived":true,"evidenceMineId":"3301385","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L11562|1989-08-10|M00521|1989-03-10|112556"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11566","name":"American Aggregates Corp"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1990-02-02","validTo":"1997-05-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L11566|1990-02-02|1997-05-27"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1990-02-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|M08942|1990-02-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"operator","id":"L11566","name":"American Aggregates Corp"},"validFrom":"1990-02-02","validTo":"1997-05-27","current":false,"derived":true,"evidenceMineId":"3301385","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L11566|1990-02-02|M08942|1990-02-02|144597"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00208","name":"Martin Marietta Aggregates"},"object":{"type":"mine","id":"3301385","name":"COLUMBUS GRAVEL-319"},"validFrom":"1997-05-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L00208|1997-05-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L00208","name":"Martin Marietta Aggregates"},"validFrom":"1997-05-28","validTo":null,"current":true,"derived":true,"evidenceMineId":"3301385","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"3301385|L00208|1997-05-28|M00174|1950-01-01|106231"}}],"coverage":{"historyRecords":5,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":3,"firstDate":"2000-08-09","lastDate":"2001-07-20","metrics":{"daysLost":0,"injuries":3,"fatalities":0,"recentRows":0,"restrictedDays":56,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"105356","DOCUMENT_NO":"220012180012","ACCIDENT_DT":"07/20/2001","DEGREE_INJURY":"DAYS RESTRICTED ACTIVITY ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Warehouseman, Bagger, Palletizer/Stacker, Store keeper, Packager, Fabricator, Cleaning plant operator","NO_INJURIES":"1","NARRATIVE":"WHILE WASHING @ PIT. HIGH PRESSURE WATER HOSE GOT LOOSE AND HIT HIM IN THE LEFT LEG, CUTTING HIS LEG BETWEEN KNEE AND ANKLE.","sourceDate":"2001-07-20"},{"SOURCE_ROW_NUMBER":"226056","DOCUMENT_NO":"220010430050","ACCIDENT_DT":"02/06/2001","DEGREE_INJURY":"DAYS RESTRICTED ACTIVITY ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Caught in, under or between NEC","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","NARRATIVE":"WORKING IN DROP BOX ON AC SCREEN A PIECE OF AUGER KICKED OUT AND CAUGHT THE FINGER ON HIS LEFT HAND AGAINST ANOTHER PIECE OF STEEL, BROKE ONE FINGER AND CUT ALL THREE.","sourceDate":"2001-02-06"},{"SOURCE_ROW_NUMBER":"239049","DOCUMENT_NO":"220002270236","ACCIDENT_DT":"08/09/2000","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall to the walkway or working surface","OCCUPATION":"Backhoe operator, Trackhoe operator, Crane operator","NO_INJURIES":"1","NARRATIVE":"WE WERE MOVING DRAGLINE BACK TO SOUTH PIT, WERE MOVING ELECTRIC POWER BOXES & CABLE BACK BEHIND DRAGLINE; WAS PULLING CABLE PULLING WITH LOADER. OTHER EMPLOYEE STOPPED TO REHOOK TO OPPOSITE S IDE OF BUCKET; STARTED TO PULL CABLE--FLIPPED UP KNOCKING ME OFF OF FEET; (I) FELL FORWARD, HITTING MY HEAD ON GROUND--CUT OVER LEFT EYE AND NOSE. TIME WAS AROUND 8:30-8:45 A.M.","sourceDate":"2000-08-09"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2002-02-28","lastDate":"2002-02-28","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":3,"firstDate":"2000-03-01","lastDate":"2000-12-26","metrics":{"ss":0,"delinquent":3,"recentRows":0,"paidPenalty":165,"proposedPenalty":165,"currentAssessment":165},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"144916","VIOLATION_NO":"7833526","ISSUE_DT":"12/26/2000","CFR_STANDARD_CD":"56.12021","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-12-26"},{"SOURCE_ROW_NUMBER":"90680","VIOLATION_NO":"7833017","ISSUE_DT":"03/01/2000","CFR_STANDARD_CD":"56.4603(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-03-01"},{"SOURCE_ROW_NUMBER":"90679","VIOLATION_NO":"7833016","ISSUE_DT":"03/01/2000","CFR_STANDARD_CD":"56.14132(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2000-03-01"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":1,"firstDate":"2000-08-01","lastDate":"2000-08-01","metrics":{"appeals":0,"decisions":1,"recentRows":0,"decisionPenalty":0,"originalPenalty":113},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"236909","VIOLATION_NO":"7823866","DOCKET_NO":"LAKE20000035M","DECISION_DT":"08/01/2000","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"113.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"N/A","sourceDate":"2000-08-01"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":5,"firstDate":"1950-01-01","lastDate":"1997-05-28","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":4},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":2,"firstDate":"2000-03-01","lastDate":"2000-12-26","metrics":{"inspectors":2,"recentRows":0,"onSiteHours":25,"inspectionHours":34,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"45639","EVENT_NO":"0809011","INSPECTION_BEGIN_DT":"12/26/2000","INSPECTION_END_DT":"12/27/2000","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"15","SUM_TOTAL_ON_SITE_HOURS":"10","sourceDate":"2000-12-26"},{"SOURCE_ROW_NUMBER":"1058018","EVENT_NO":"0725133","INSPECTION_BEGIN_DT":"03/01/2000","INSPECTION_END_DT":"03/02/2000","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"19","SUM_TOTAL_ON_SITE_HOURS":"15","sourceDate":"2000-03-01"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":23,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2002-Q4":{"hours":0,"employees":0,"production":0},"2002-Q3":{"hours":0,"employees":0,"production":0},"2002-Q2":{"hours":0,"employees":0,"production":0},"2002-Q1":{"hours":81,"employees":1,"production":0},"2001-Q4":{"hours":19293,"employees":31,"production":0},"2001-Q3":{"hours":18155,"employees":28,"production":0},"2001-Q2":{"hours":18341,"employees":28,"production":0},"2001-Q1":{"hours":15429,"employees":36,"production":0},"2000-Q4":{"hours":23420,"employees":37,"production":0},"2000-Q3":{"hours":24940,"employees":39,"production":0},"2000-Q2":{"hours":25790,"employees":41,"production":0},"2000-Q1":{"hours":14796,"employees":38,"production":0}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":5,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":88946,"employees":39,"production":0},"2001":{"hours":71218,"employees":31,"production":0},"2002":{"hours":81,"employees":1,"production":0}},"recentRecords":[]},{"id":"msha-mines","name":"Mines","domains":["identity","production","logistics"],"products":["mine identity","status","commodity","location","operator and controller"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":3,"firstDate":"2000-03-01","lastDate":"2000-12-26","metrics":{"ss":0,"amountDue":165,"contested":0,"amountPaid":165,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":165},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1741346","VIOLATION_NO":"7833526","VIOLATION_ISSUE_DT":"12/26/2000","SIG_SUB":"N","PART_SECTION":"56.12021","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"12/27/2000","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2000-12-26"},{"SOURCE_ROW_NUMBER":"1741345","VIOLATION_NO":"7833017","VIOLATION_ISSUE_DT":"03/01/2000","SIG_SUB":"N","PART_SECTION":"56.4603(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/01/2000","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2000-03-01"},{"SOURCE_ROW_NUMBER":"1741344","VIOLATION_NO":"7833016","VIOLATION_ISSUE_DT":"03/01/2000","SIG_SUB":"N","PART_SECTION":"56.14132(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"03/01/2000","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2000-03-01"}]}],"safety":{"href":"/api/v1/mines/3301385/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/3301385/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[{"chapter":"I","heading":"Danger signs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12021","part":"56","subchapter":"K","subpart":"K","id":"56.12021","citation":"30 CFR 56.12021","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Closure of valves.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4603","part":"56","subchapter":"K","subpart":"C","id":"56.4603","citation":"30 CFR 56.4603","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Horns and backup alarms.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132","part":"56","subchapter":"K","subpart":"M","id":"56.14132","citation":"30 CFR 56.14132","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"3301385","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}