{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-18T09:31:49.615Z","identity":{"mine_id":"2300678","name":"BOETTCHER SAND & GRAVEL PLANT","status":"Abandoned","status_date":"2007-05-24","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"MO","county":"Gasconade","nearest_town":"Rolla","operator_id":"L31125","operator_name":"Boettcher Concrete Company","controller_id":"M31125","controller_name":"Herbert F  Boettcher","district":"C10","office":"Rolla MO Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":8,"registeredSources":20,"sourceRows":77},"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":"2300678","name":"BOETTCHER SAND & GRAVEL PLANT"},"operator":{"type":"operator","id":"L31125","name":"Boettcher Concrete Company"},"controller":{"type":"controller","id":"M31125","name":"Herbert F  Boettcher"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L31125","name":"Boettcher Concrete Company"},"object":{"type":"mine","id":"2300678","name":"BOETTCHER SAND & GRAVEL PLANT"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2300678|L31125|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M31125","name":"Herbert F  Boettcher"},"object":{"type":"mine","id":"2300678","name":"BOETTCHER SAND & GRAVEL PLANT"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2300678|M31125|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M31125","name":"Herbert F  Boettcher"},"object":{"type":"operator","id":"L31125","name":"Boettcher Concrete Company"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2300678","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2300678|L31125|1950-01-01|M31125|1950-01-01|159394"}}],"coverage":{"historyRecords":1,"edgeCount":3,"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":"2007-05-24","lastDate":"2007-05-24","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":7,"firstDate":"2001-05-08","lastDate":"2005-09-13","metrics":{"ss":2,"delinquent":7,"recentRows":0,"paidPenalty":496,"proposedPenalty":496,"currentAssessment":496},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"404530","VIOLATION_NO":"6238896","ISSUE_DT":"09/13/2005","CFR_STANDARD_CD":"56.18010","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-09-13"},{"SOURCE_ROW_NUMBER":"388380","VIOLATION_NO":"6216292","ISSUE_DT":"08/08/2002","CFR_STANDARD_CD":"56.18010","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-08-08"},{"SOURCE_ROW_NUMBER":"388383","VIOLATION_NO":"6216303","ISSUE_DT":"07/25/2002","CFR_STANDARD_CD":"56.9300(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":"2002-07-25"},{"SOURCE_ROW_NUMBER":"388382","VIOLATION_NO":"6216302","ISSUE_DT":"07/25/2002","CFR_STANDARD_CD":"56.11001","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"150.00","CURRENT_ASSESSMENT_AMT":"150.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-07-25"},{"SOURCE_ROW_NUMBER":"388381","VIOLATION_NO":"6216301","ISSUE_DT":"07/25/2002","CFR_STANDARD_CD":"56.14112(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":"2002-07-25"},{"SOURCE_ROW_NUMBER":"141520","VIOLATION_NO":"6203489","ISSUE_DT":"05/08/2001","CFR_STANDARD_CD":"56.11002","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"66.00","CURRENT_ASSESSMENT_AMT":"66.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-05-08"},{"SOURCE_ROW_NUMBER":"141519","VIOLATION_NO":"6203488","ISSUE_DT":"05/08/2001","CFR_STANDARD_CD":"56.12013","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-05-08"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":1,"firstDate":"1950-01-01","lastDate":"1950-01-01","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":14,"firstDate":"2001-05-08","lastDate":"2007-05-23","metrics":{"inspectors":14,"recentRows":0,"onSiteHours":41.5,"inspectionHours":89,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1100763","EVENT_NO":"1049200","INSPECTION_BEGIN_DT":"05/23/2007","INSPECTION_END_DT":"05/23/2007","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.5","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2007-05-23"},{"SOURCE_ROW_NUMBER":"454428","EVENT_NO":"1048619","INSPECTION_BEGIN_DT":"05/01/2007","INSPECTION_END_DT":"05/01/2007","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2007-05-01"},{"SOURCE_ROW_NUMBER":"306161","EVENT_NO":"1042854","INSPECTION_BEGIN_DT":"10/11/2006","INSPECTION_END_DT":"10/11/2006","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2006-10-11"},{"SOURCE_ROW_NUMBER":"695413","EVENT_NO":"1042840","INSPECTION_BEGIN_DT":"08/14/2006","INSPECTION_END_DT":"08/14/2006","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2006-08-14"},{"SOURCE_ROW_NUMBER":"399273","EVENT_NO":"1043097","INSPECTION_BEGIN_DT":"04/04/2006","INSPECTION_END_DT":"04/04/2006","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.5","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2006-04-04"},{"SOURCE_ROW_NUMBER":"813338","EVENT_NO":"1029627","INSPECTION_BEGIN_DT":"10/13/2005","INSPECTION_END_DT":"10/14/2005","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2005-10-13"},{"SOURCE_ROW_NUMBER":"247279","EVENT_NO":"1029699","INSPECTION_BEGIN_DT":"09/13/2005","INSPECTION_END_DT":"09/13/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2005-09-13"},{"SOURCE_ROW_NUMBER":"362129","EVENT_NO":"1028619","INSPECTION_BEGIN_DT":"10/05/2004","INSPECTION_END_DT":"10/05/2004","ACTIVITY_CODE":"37","ACTIVITY":"MISCELLANEOUS INSPECTION/INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2004-10-05"},{"SOURCE_ROW_NUMBER":"908580","EVENT_NO":"1025886","INSPECTION_BEGIN_DT":"02/25/2004","INSPECTION_END_DT":"02/25/2004","ACTIVITY_CODE":"16","ACTIVITY":"PART 50 AUDIT","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2004-02-25"},{"SOURCE_ROW_NUMBER":"190590","EVENT_NO":"1025885","INSPECTION_BEGIN_DT":"02/25/2004","INSPECTION_END_DT":"02/25/2004","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2004-02-25"},{"SOURCE_ROW_NUMBER":"126918","EVENT_NO":"1022628","INSPECTION_BEGIN_DT":"08/20/2003","INSPECTION_END_DT":"08/21/2003","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2003-08-20"},{"SOURCE_ROW_NUMBER":"1152923","EVENT_NO":"1013224","INSPECTION_BEGIN_DT":"07/25/2002","INSPECTION_END_DT":"08/08/2002","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16","SUM_TOTAL_ON_SITE_HOURS":"10","sourceDate":"2002-07-25"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":40,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2007-Q2":{"hours":0,"employees":0,"production":0},"2007-Q1":{"hours":0,"employees":0,"production":0},"2005-Q4":{"hours":278,"employees":4,"production":0},"2005-Q3":{"hours":341,"employees":3,"production":0},"2005-Q2":{"hours":274,"employees":3,"production":0},"2005-Q1":{"hours":478,"employees":3,"production":0},"2004-Q4":{"hours":117,"employees":3,"production":0},"2004-Q3":{"hours":135,"employees":2,"production":0},"2004-Q2":{"hours":236,"employees":3,"production":0},"2004-Q1":{"hours":404,"employees":3,"production":0},"2003-Q4":{"hours":302,"employees":3,"production":0},"2003-Q3":{"hours":196,"employees":3,"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":6,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":533,"employees":2,"production":0},"2001":{"hours":1193,"employees":2,"production":0},"2002":{"hours":1576,"employees":3,"production":0},"2003":{"hours":1419,"employees":3,"production":0},"2004":{"hours":892,"employees":3,"production":0},"2005":{"hours":1371,"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":7,"firstDate":"2001-05-08","lastDate":"2005-09-13","metrics":{"ss":2,"amountDue":496,"contested":0,"amountPaid":496,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":496},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1422180","VIOLATION_NO":"6238896","VIOLATION_ISSUE_DT":"09/13/2005","SIG_SUB":"N","PART_SECTION":"56.18010","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/13/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-09-13"},{"SOURCE_ROW_NUMBER":"1422176","VIOLATION_NO":"6216292","VIOLATION_ISSUE_DT":"08/08/2002","SIG_SUB":"N","PART_SECTION":"56.18010","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/19/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-08-08"},{"SOURCE_ROW_NUMBER":"1422179","VIOLATION_NO":"6216303","VIOLATION_ISSUE_DT":"07/25/2002","SIG_SUB":"N","PART_SECTION":"56.9300(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/26/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-07-25"},{"SOURCE_ROW_NUMBER":"1422178","VIOLATION_NO":"6216302","VIOLATION_ISSUE_DT":"07/25/2002","SIG_SUB":"Y","PART_SECTION":"56.11001","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/07/2002","PROPOSED_PENALTY":"150","AMOUNT_DUE":"150","AMOUNT_PAID":"150","CONTESTED_IND":"N","sourceDate":"2002-07-25"},{"SOURCE_ROW_NUMBER":"1422177","VIOLATION_NO":"6216301","VIOLATION_ISSUE_DT":"07/25/2002","SIG_SUB":"N","PART_SECTION":"56.14112(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/26/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-07-25"},{"SOURCE_ROW_NUMBER":"1422175","VIOLATION_NO":"6203489","VIOLATION_ISSUE_DT":"05/08/2001","SIG_SUB":"Y","PART_SECTION":"56.11002","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"06/16/2001","PROPOSED_PENALTY":"66","AMOUNT_DUE":"66","AMOUNT_PAID":"66","CONTESTED_IND":"N","sourceDate":"2001-05-08"},{"SOURCE_ROW_NUMBER":"1422174","VIOLATION_NO":"6203488","VIOLATION_ISSUE_DT":"05/08/2001","SIG_SUB":"N","PART_SECTION":"56.12013","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"05/08/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-05-08"}]}],"safety":{"href":"/api/v1/mines/2300678/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2300678/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":"First aid.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-Q/section-56.18010","part":"56","subchapter":"K","subpart":"Q","id":"56.18010","citation":"30 CFR 56.18010","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":2},{"chapter":"I","heading":"Berms or guardrails.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300","part":"56","subchapter":"K","subpart":"H","id":"56.9300","citation":"30 CFR 56.9300","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":"Safe access.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001","part":"56","subchapter":"K","subpart":"J","id":"56.11001","citation":"30 CFR 56.11001","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":"Construction and maintenance of guards.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112","part":"56","subchapter":"K","subpart":"M","id":"56.14112","citation":"30 CFR 56.14112","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":"Handrails and toeboards.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11002","part":"56","subchapter":"K","subpart":"J","id":"56.11002","citation":"30 CFR 56.11002","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":"Splices and repairs of power cables.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12013","part":"56","subchapter":"K","subpart":"K","id":"56.12013","citation":"30 CFR 56.12013","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":"2300678","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}