{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"1302336","name":"PWP #8","status":"Abandoned","status_date":"2014-11-14","mine_type":"Surface","coal_metal":"M","commodity":"Sand, Common","state":"IA","county":"Polk","nearest_town":"Des Moines","operator_id":"0085824","operator_name":"Hallett Materials","controller_id":"M06183","controller_name":"CRH PLC","district":"M4","office":"Duluth District","employees":0,"latitude":41.661389,"longitude":-93.582778},"coverage":{"contributingSources":8,"registeredSources":20,"sourceRows":89},"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":"2026-10-13T11:19:05.459773+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":"1302336","name":"PWP #8"},"operator":{"type":"operator","id":"0085824","name":"Hallett Materials"},"controller":{"type":"controller","id":"M06183","name":"CRH PLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12677","name":"Rasmussen Group Inc"},"object":{"type":"mine","id":"1302336","name":"PWP #8"},"validFrom":"1999-04-01","validTo":"2001-08-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1302336|M12677|1999-04-01|2001-08-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"1302336","name":"PWP #8"},"validFrom":"2001-08-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1302336|M06183|2001-08-11|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16568","name":"Hallett Materials Inc"},"object":{"type":"mine","id":"1302336","name":"PWP #8"},"validFrom":"2006-10-25","validTo":"2008-01-02","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1302336|L16568|2006-10-25|2008-01-02"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"L16568","name":"Hallett Materials Inc"},"validFrom":"2006-10-25","validTo":"2008-01-02","current":false,"derived":true,"evidenceMineId":"1302336","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1302336|L16568|2006-10-25|M06183|2001-08-11|136940"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12677","name":"Rasmussen Group Inc"},"object":{"type":"operator","id":"L16568","name":"Hallett Materials Inc"},"validFrom":"2006-10-25","validTo":"2001-08-10","current":false,"derived":true,"evidenceMineId":"1302336","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1302336|L16568|2006-10-25|M12677|1999-04-01|154322"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0085824","name":"Hallett Materials"},"object":{"type":"mine","id":"1302336","name":"PWP #8"},"validFrom":"2008-01-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1302336|0085824|2008-01-03|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"1302336","name":"PWP #8"},"validFrom":"2008-01-03","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1302336|M06183|2008-01-03|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"0085824","name":"Hallett Materials"},"validFrom":"2008-01-03","validTo":null,"current":true,"derived":true,"evidenceMineId":"1302336","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1302336|0085824|2008-01-03|M06183|2008-01-03|137467"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":1,"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":"2014-11-14","lastDate":"2014-11-14","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":10,"firstDate":"2008-10-08","lastDate":"2010-11-03","metrics":{"ss":2,"delinquent":10,"recentRows":0,"paidPenalty":1124,"proposedPenalty":1124,"currentAssessment":1124},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2162087","VIOLATION_NO":"6551670","ISSUE_DT":"11/03/2010","CFR_STANDARD_CD":"56.14100(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-11-03"},{"SOURCE_ROW_NUMBER":"2162086","VIOLATION_NO":"6551669","ISSUE_DT":"11/03/2010","CFR_STANDARD_CD":"56.14100(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-11-03"},{"SOURCE_ROW_NUMBER":"2074595","VIOLATION_NO":"6551206","ISSUE_DT":"08/18/2010","CFR_STANDARD_CD":"56.15005","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-08-18"},{"SOURCE_ROW_NUMBER":"2074594","VIOLATION_NO":"6551205","ISSUE_DT":"08/18/2010","CFR_STANDARD_CD":"56.15005","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-08-18"},{"SOURCE_ROW_NUMBER":"2074593","VIOLATION_NO":"6551204","ISSUE_DT":"08/18/2010","CFR_STANDARD_CD":"56.4101","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-08-18"},{"SOURCE_ROW_NUMBER":"381333","VIOLATION_NO":"6413479","ISSUE_DT":"10/15/2008","CFR_STANDARD_CD":"62.130(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-10-15"},{"SOURCE_ROW_NUMBER":"381332","VIOLATION_NO":"6413478","ISSUE_DT":"10/09/2008","CFR_STANDARD_CD":"56.12028","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-10-09"},{"SOURCE_ROW_NUMBER":"381330","VIOLATION_NO":"6413476","ISSUE_DT":"10/09/2008","CFR_STANDARD_CD":"56.12025","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"224.00","CURRENT_ASSESSMENT_AMT":"224.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-10-09"},{"SOURCE_ROW_NUMBER":"381331","VIOLATION_NO":"6413477","ISSUE_DT":"10/08/2008","CFR_STANDARD_CD":"56.12028","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-10-08"},{"SOURCE_ROW_NUMBER":"381329","VIOLATION_NO":"6413475","ISSUE_DT":"10/08/2008","CFR_STANDARD_CD":"56.12008","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-10-08"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":3,"firstDate":"2006-10-25","lastDate":"2008-01-03","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":2},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":9,"firstDate":"2007-09-26","lastDate":"2014-09-24","metrics":{"inspectors":9,"recentRows":0,"onSiteHours":56,"inspectionHours":85.25,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"290478","EVENT_NO":"6639749","INSPECTION_BEGIN_DT":"09/24/2014","INSPECTION_END_DT":"09/25/2014","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10.5","SUM_TOTAL_ON_SITE_HOURS":"5.5","sourceDate":"2014-09-24"},{"SOURCE_ROW_NUMBER":"716662","EVENT_NO":"6576165","INSPECTION_BEGIN_DT":"08/14/2012","INSPECTION_END_DT":"08/14/2012","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"1.5","sourceDate":"2012-08-14"},{"SOURCE_ROW_NUMBER":"1127246","EVENT_NO":"6518437","INSPECTION_BEGIN_DT":"11/22/2010","INSPECTION_END_DT":"11/22/2010","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.25","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2010-11-22"},{"SOURCE_ROW_NUMBER":"420243","EVENT_NO":"6573212","INSPECTION_BEGIN_DT":"11/02/2010","INSPECTION_END_DT":"11/03/2010","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10.25","SUM_TOTAL_ON_SITE_HOURS":"8.5","sourceDate":"2010-11-02"},{"SOURCE_ROW_NUMBER":"11597","EVENT_NO":"6518153","INSPECTION_BEGIN_DT":"09/13/2010","INSPECTION_END_DT":"09/13/2010","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.5","SUM_TOTAL_ON_SITE_HOURS":".25","sourceDate":"2010-09-13"},{"SOURCE_ROW_NUMBER":"611581","EVENT_NO":"6518139","INSPECTION_BEGIN_DT":"08/18/2010","INSPECTION_END_DT":"08/18/2010","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8.5","SUM_TOTAL_ON_SITE_HOURS":"7","sourceDate":"2010-08-18"},{"SOURCE_ROW_NUMBER":"6677","EVENT_NO":"1009855","INSPECTION_BEGIN_DT":"10/08/2008","INSPECTION_END_DT":"10/16/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"31","SUM_TOTAL_ON_SITE_HOURS":"23.25","sourceDate":"2008-10-08"},{"SOURCE_ROW_NUMBER":"181454","EVENT_NO":"1009986","INSPECTION_BEGIN_DT":"04/22/2008","INSPECTION_END_DT":"04/22/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4.75","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2008-04-22"},{"SOURCE_ROW_NUMBER":"1088955","EVENT_NO":"1009178","INSPECTION_BEGIN_DT":"09/26/2007","INSPECTION_END_DT":"09/26/2007","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"13.5","SUM_TOTAL_ON_SITE_HOURS":"6.5","sourceDate":"2007-09-26"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":44,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2012-Q3":{"hours":1,"employees":1,"production":0},"2011-Q4":{"hours":0,"employees":0,"production":0},"2011-Q3":{"hours":660,"employees":3,"production":0},"2011-Q2":{"hours":1089,"employees":4,"production":0},"2011-Q1":{"hours":0,"employees":0,"production":0},"2010-Q4":{"hours":1855,"employees":5,"production":0},"2010-Q3":{"hours":2511,"employees":4,"production":0},"2010-Q2":{"hours":1587,"employees":4,"production":0},"2010-Q1":{"hours":0,"employees":0,"production":0},"2009-Q4":{"hours":1275,"employees":3,"production":0},"2009-Q3":{"hours":1666,"employees":6,"production":0},"2009-Q2":{"hours":840,"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":11,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2006":{"hours":1499,"employees":3,"production":0},"2007":{"hours":1522,"employees":3,"production":0},"2008":{"hours":4789,"employees":4,"production":0},"2009":{"hours":3781,"employees":4,"production":0},"2010":{"hours":5953,"employees":5,"production":0},"2011":{"hours":1749,"employees":4,"production":0},"2012":{"hours":1,"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":10,"firstDate":"2008-10-08","lastDate":"2010-11-03","metrics":{"ss":2,"amountDue":1124,"contested":0,"amountPaid":1124,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":1124},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"676755","VIOLATION_NO":"6551670","VIOLATION_ISSUE_DT":"11/03/2010","SIG_SUB":"N","PART_SECTION":"56.14100(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"2","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"11/22/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2010-11-03"},{"SOURCE_ROW_NUMBER":"676754","VIOLATION_NO":"6551669","VIOLATION_ISSUE_DT":"11/03/2010","SIG_SUB":"N","PART_SECTION":"56.14100(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"2","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"11/03/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2010-11-03"},{"SOURCE_ROW_NUMBER":"676748","VIOLATION_NO":"6551206","VIOLATION_ISSUE_DT":"08/18/2010","SIG_SUB":"N","PART_SECTION":"56.15005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/13/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2010-08-18"},{"SOURCE_ROW_NUMBER":"676747","VIOLATION_NO":"6551205","VIOLATION_ISSUE_DT":"08/18/2010","SIG_SUB":"N","PART_SECTION":"56.15005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/13/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2010-08-18"},{"SOURCE_ROW_NUMBER":"676746","VIOLATION_NO":"6551204","VIOLATION_ISSUE_DT":"08/18/2010","SIG_SUB":"N","PART_SECTION":"56.4101","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/18/2010","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2010-08-18"},{"SOURCE_ROW_NUMBER":"676753","VIOLATION_NO":"6413479","VIOLATION_ISSUE_DT":"10/15/2008","SIG_SUB":"Y","PART_SECTION":"62.130(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"11/03/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-10-15"},{"SOURCE_ROW_NUMBER":"676752","VIOLATION_NO":"6413478","VIOLATION_ISSUE_DT":"10/09/2008","SIG_SUB":"N","PART_SECTION":"56.12028","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/14/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-10-09"},{"SOURCE_ROW_NUMBER":"676750","VIOLATION_NO":"6413476","VIOLATION_ISSUE_DT":"10/09/2008","SIG_SUB":"Y","PART_SECTION":"56.12025","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/14/2008","PROPOSED_PENALTY":"224","AMOUNT_DUE":"224","AMOUNT_PAID":"224","CONTESTED_IND":"N","sourceDate":"2008-10-09"},{"SOURCE_ROW_NUMBER":"676751","VIOLATION_NO":"6413477","VIOLATION_ISSUE_DT":"10/08/2008","SIG_SUB":"N","PART_SECTION":"56.12028","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/14/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-10-08"},{"SOURCE_ROW_NUMBER":"676749","VIOLATION_NO":"6413475","VIOLATION_ISSUE_DT":"10/08/2008","SIG_SUB":"N","PART_SECTION":"56.12008","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/14/2008","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2008-10-08"}]}],"safety":{"href":"/api/v1/mines/1302336/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1302336/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":"Safety defects; examination, correction and records.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100","part":"56","subchapter":"K","subpart":"M","id":"56.14100","citation":"30 CFR 56.14100","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":"Safety belts and lines.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15005","part":"56","subchapter":"K","subpart":"N","id":"56.15005","citation":"30 CFR 56.15005","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":"Warning signs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101","part":"56","subchapter":"K","subpart":"C","id":"56.4101","citation":"30 CFR 56.4101","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","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 62.130","heading":"Permissible exposure level.","id":"62.130","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.130","part":"62","partHeading":"PART 62—OCCUPATIONAL NOISE EXPOSURE","subchapter":"M","subchapterHeading":"SUBCHAPTER M—UNIFORM MINE HEALTH REGULATIONS","subpart":"","subpartHeading":"","text":"(a) The mine operator must assure that no miner is exposed during any work shift to noise that exceeds the permissible exposure level. If during any work shift a miner's noise exposure exceeds the permissible exposure level, the mine operator must use all feasible engineering and administrative controls to reduce the miner's noise exposure to the permissible exposure level, and enroll the miner in a hearing conservation program that complies with § 62.150 of this part. When a mine operator uses administrative controls to reduce a miner's exposure, the mine operator must post the procedures for such controls on the mine bulletin board and provide a copy to the affected miner.\n\n(b) If a miner's noise exposure continues to exceed the permissible exposure level despite the use of all feasible engineering and administrative controls, the mine operator must continue to use the engineering and administrative controls to reduce the miner's noise exposure to as low a level as is feasible.\n\n(c) The mine operator must assure that no miner is exposed at any time to sound levels exceeding 115 dBA, as determined without adjustment for the use of any hearing protector.","occurrenceCount":1},{"chapter":"I","heading":"Testing grounding systems.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028","part":"56","subchapter":"K","subpart":"K","id":"56.12028","citation":"30 CFR 56.12028","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":"Grounding circuit enclosures.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025","part":"56","subchapter":"K","subpart":"K","id":"56.12025","citation":"30 CFR 56.12025","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":"Insulation and fittings for power wires and cables.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008","part":"56","subchapter":"K","subpart":"K","id":"56.12008","citation":"30 CFR 56.12008","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":"1302336","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}