{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-18T09:31:49.615Z","identity":{"mine_id":"3400059","name":"Willis Quarry","status":"Abandoned","status_date":"2008-11-18","mine_type":"Surface","coal_metal":"M","commodity":"Dimension Granite","state":"OK","county":"Greer","nearest_town":"Granite","operator_id":"L10790","operator_name":"Oklahoma Red Granite","controller_id":"M08367","controller_name":"Ellen  Willis","district":"M5","office":"Norman OK Field Office","employees":0,"latitude":34.988084,"longitude":-99.394094},"coverage":{"contributingSources":8,"registeredSources":20,"sourceRows":100},"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":"2026-10-18T09:31:49.615908+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":"3400059","name":"Willis Quarry"},"operator":{"type":"operator","id":"L10790","name":"Oklahoma Red Granite"},"controller":{"type":"controller","id":"M08367","name":"Ellen  Willis"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10789","name":"J R Willis Granite Company"},"object":{"type":"mine","id":"3400059","name":"Willis Quarry"},"validFrom":"1950-01-01","validTo":"1989-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|L10789|1950-01-01|1989-02-28"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08366","name":"J R  Willis"},"object":{"type":"mine","id":"3400059","name":"Willis Quarry"},"validFrom":"1950-01-01","validTo":"1989-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|M08366|1950-01-01|1989-02-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08366","name":"J R  Willis"},"object":{"type":"operator","id":"L10789","name":"J R Willis Granite Company"},"validFrom":"1950-01-01","validTo":"1989-02-28","current":false,"derived":true,"evidenceMineId":"3400059","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|L10789|1950-01-01|M08366|1950-01-01|143255"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10790","name":"Oklahoma Red Granite Inc"},"object":{"type":"mine","id":"3400059","name":"Willis Quarry"},"validFrom":"1989-03-01","validTo":"1998-08-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|L10790|1989-03-01|1998-08-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08367","name":"Ellen  Willis"},"object":{"type":"mine","id":"3400059","name":"Willis Quarry"},"validFrom":"1989-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|M08367|1989-03-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08367","name":"Ellen  Willis"},"object":{"type":"operator","id":"L10790","name":"Oklahoma Red Granite Inc"},"validFrom":"1989-03-01","validTo":"1998-08-31","current":false,"derived":true,"evidenceMineId":"3400059","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|L10790|1989-03-01|M08367|1989-03-01|143256"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16254","name":"Polycor U S"},"object":{"type":"mine","id":"3400059","name":"Willis Quarry"},"validFrom":"1998-09-01","validTo":"2006-05-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|L16254|1998-09-01|2006-05-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"mine","id":"3400059","name":"Willis Quarry"},"validFrom":"1998-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|M12431|1998-09-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12431","name":"Polycor Inc"},"object":{"type":"operator","id":"L16254","name":"Polycor U S"},"validFrom":"1998-09-01","validTo":"2006-05-01","current":false,"derived":true,"evidenceMineId":"3400059","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|L16254|1998-09-01|M12431|1998-09-01|153721"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10790","name":"Oklahoma Red Granite"},"object":{"type":"mine","id":"3400059","name":"Willis Quarry"},"validFrom":"2006-05-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|L10790|2006-05-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08367","name":"Ellen  Willis"},"object":{"type":"operator","id":"L10790","name":"Oklahoma Red Granite"},"validFrom":"2006-05-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"3400059","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"3400059|L10790|2006-05-02|M08367|1989-03-01|143257"}}],"coverage":{"historyRecords":4,"edgeCount":11,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2008-11-18","lastDate":"2008-11-18","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":8,"firstDate":"2000-03-06","lastDate":"2006-10-25","metrics":{"ss":1,"delinquent":8,"recentRows":0,"paidPenalty":1240,"proposedPenalty":1240,"currentAssessment":1240},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"429124","VIOLATION_NO":"6225634","ISSUE_DT":"10/25/2006","CFR_STANDARD_CD":"50.30(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2006-10-25"},{"SOURCE_ROW_NUMBER":"140292","VIOLATION_NO":"7896585","ISSUE_DT":"03/21/2001","CFR_STANDARD_CD":"56.13021","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"140291","VIOLATION_NO":"7896584","ISSUE_DT":"03/21/2001","CFR_STANDARD_CD":"56.16006","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"140290","VIOLATION_NO":"7896583","ISSUE_DT":"03/21/2001","CFR_STANDARD_CD":"56.12034","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"140289","VIOLATION_NO":"7896582","ISSUE_DT":"03/21/2001","CFR_STANDARD_CD":"56.14107(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":"2001-03-21"},{"SOURCE_ROW_NUMBER":"140288","VIOLATION_NO":"7896581","ISSUE_DT":"03/21/2001","CFR_STANDARD_CD":"56.4230(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"140287","VIOLATION_NO":"7896580","ISSUE_DT":"03/21/2001","CFR_STANDARD_CD":"56.14130(a)(3)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"850.00","CURRENT_ASSESSMENT_AMT":"850.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"91030","VIOLATION_NO":"7888076","ISSUE_DT":"03/06/2000","CFR_STANDARD_CD":"50.30(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":"2000-03-06"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":4,"firstDate":"1950-01-01","lastDate":"2006-05-02","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":3},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":10,"firstDate":"2000-02-15","lastDate":"2008-11-18","metrics":{"inspectors":9,"recentRows":0,"onSiteHours":26,"inspectionHours":55.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"830233","EVENT_NO":"1054087","INSPECTION_BEGIN_DT":"11/18/2008","INSPECTION_END_DT":"11/18/2008","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"1","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2008-11-18"},{"SOURCE_ROW_NUMBER":"348431","EVENT_NO":"1050073","INSPECTION_BEGIN_DT":"02/06/2008","INSPECTION_END_DT":"02/06/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2008-02-06"},{"SOURCE_ROW_NUMBER":"1054094","EVENT_NO":"1045364","INSPECTION_BEGIN_DT":"10/25/2006","INSPECTION_END_DT":"10/25/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10.5","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2006-10-25"},{"SOURCE_ROW_NUMBER":"53700","EVENT_NO":"1045749","INSPECTION_BEGIN_DT":"05/31/2006","INSPECTION_END_DT":"05/31/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2006-05-31"},{"SOURCE_ROW_NUMBER":"1153962","EVENT_NO":"1024408","INSPECTION_BEGIN_DT":"06/03/2003","INSPECTION_END_DT":"06/03/2003","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2003-06-03"},{"SOURCE_ROW_NUMBER":"1049437","EVENT_NO":"0796343","INSPECTION_BEGIN_DT":"01/15/2002","INSPECTION_END_DT":"01/15/2002","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2002-01-15"},{"SOURCE_ROW_NUMBER":"85595","EVENT_NO":"0804425","INSPECTION_BEGIN_DT":"03/29/2001","INSPECTION_END_DT":"03/29/2001","ACTIVITY_CODE":"02","ACTIVITY":"COMPLIANCE FOLLOW-UP INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2001-03-29"},{"SOURCE_ROW_NUMBER":"1092381","EVENT_NO":"0804415","INSPECTION_BEGIN_DT":"03/21/2001","INSPECTION_END_DT":"03/23/2001","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"9","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"366559","EVENT_NO":"0804069","INSPECTION_BEGIN_DT":"07/25/2000","INSPECTION_END_DT":"07/25/2000","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"0","SUM_TOTAL_INSP_HOURS":"0","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2000-07-25"},{"SOURCE_ROW_NUMBER":"317045","EVENT_NO":"0725551","INSPECTION_BEGIN_DT":"02/15/2000","INSPECTION_END_DT":"02/15/2000","ACTIVITY_CODE":"10","ACTIVITY":"ATTEMPTED INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2000-02-15"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":54,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2008-Q3":{"hours":0,"employees":0,"production":0},"2008-Q2":{"hours":0,"employees":0,"production":0},"2008-Q1":{"hours":24,"employees":3,"production":0},"2007-Q4":{"hours":15,"employees":2,"production":0},"2007-Q3":{"hours":36,"employees":2,"production":0},"2007-Q2":{"hours":196,"employees":2,"production":0},"2007-Q1":{"hours":118,"employees":2,"production":0},"2006-Q4":{"hours":196,"employees":2,"production":0},"2006-Q3":{"hours":246,"employees":2,"production":0},"2004-Q2":{"hours":0,"employees":0,"production":0},"2004-Q1":{"hours":1,"employees":1,"production":0},"2003-Q4":{"hours":3,"employees":1,"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":14,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":1343,"employees":2,"production":0},"2001":{"hours":1148,"employees":5,"production":0},"2002":{"hours":44,"employees":2,"production":0},"2003":{"hours":16,"employees":1,"production":0},"2004":{"hours":1,"employees":1,"production":0},"2006":{"hours":442,"employees":2,"production":0},"2007":{"hours":365,"employees":2,"production":0},"2008":{"hours":24,"employees":3,"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":8,"firstDate":"2000-03-06","lastDate":"2006-10-25","metrics":{"ss":1,"amountDue":1240,"contested":0,"amountPaid":1240,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":1240},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1781867","VIOLATION_NO":"6225634","VIOLATION_ISSUE_DT":"10/25/2006","SIG_SUB":"N","PART_SECTION":"50.30(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/25/2006","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2006-10-25"},{"SOURCE_ROW_NUMBER":"1781866","VIOLATION_NO":"7896585","VIOLATION_ISSUE_DT":"03/21/2001","SIG_SUB":"N","PART_SECTION":"56.13021","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/23/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"1781865","VIOLATION_NO":"7896584","VIOLATION_ISSUE_DT":"03/21/2001","SIG_SUB":"N","PART_SECTION":"56.16006","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/23/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"1781864","VIOLATION_NO":"7896583","VIOLATION_ISSUE_DT":"03/21/2001","SIG_SUB":"N","PART_SECTION":"56.12034","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/23/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"1781863","VIOLATION_NO":"7896582","VIOLATION_ISSUE_DT":"03/21/2001","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/23/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"1781862","VIOLATION_NO":"7896581","VIOLATION_ISSUE_DT":"03/21/2001","SIG_SUB":"N","PART_SECTION":"56.4230(a)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/23/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"1781861","VIOLATION_NO":"7896580","VIOLATION_ISSUE_DT":"03/21/2001","SIG_SUB":"Y","PART_SECTION":"56.14130(a)(3)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"03/29/2001","PROPOSED_PENALTY":"850","AMOUNT_DUE":"850","AMOUNT_PAID":"850","CONTESTED_IND":"N","sourceDate":"2001-03-21"},{"SOURCE_ROW_NUMBER":"1781860","VIOLATION_NO":"7888076","VIOLATION_ISSUE_DT":"03/06/2000","SIG_SUB":"N","SECTION_OF_ACT":"103(h)","PART_SECTION":"50.30(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/06/2000","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2000-03-06"}]}],"safety":{"href":"/api/v1/mines/3400059/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/3400059/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":"Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30","part":"50","subchapter":"I","subpart":"D","id":"50.30","citation":"30 CFR 50.30","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER I—ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND PRODUCTION IN MINES","partHeading":"PART 50—NOTIFICATION, INVESTIGATION, REPORTS AND RECORDS OF ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES","subpartHeading":"","text":null,"occurrenceCount":2},{"chapter":"I","heading":"High-pressure hose connections.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-L/section-56.13021","part":"56","subchapter":"K","subpart":"L","id":"56.13021","citation":"30 CFR 56.13021","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":"Protection of gas cylinder valves.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16006","part":"56","subchapter":"K","subpart":"O","id":"56.16006","citation":"30 CFR 56.16006","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":"Guarding around lights.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12034","part":"56","subchapter":"K","subpart":"K","id":"56.12034","citation":"30 CFR 56.12034","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":"Moving machine parts.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107","part":"56","subchapter":"K","subpart":"M","id":"56.14107","citation":"30 CFR 56.14107","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":"Self-propelled equipment.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4230","part":"56","subchapter":"K","subpart":"C","id":"56.4230","citation":"30 CFR 56.4230","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":"Roll-over protective structures (ROPS) and seat belts.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130","part":"56","subchapter":"K","subpart":"M","id":"56.14130","citation":"30 CFR 56.14130","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":"3400059","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}