{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4500256","name":"Elk Pit","status":"Abandoned","status_date":"2015-10-01","mine_type":"Surface","coal_metal":"M","commodity":"Fire Clay","state":"WA","county":"King","nearest_town":"Ravensdale","operator_id":"L00311","operator_name":"Mutual Materials Company","controller_id":"M00250","controller_name":"Mutual Materials Company","district":"M7","office":"Kent WA Field Office","employees":0,"latitude":47.345278,"longitude":-121.901667},"coverage":{"contributingSources":11,"registeredSources":20,"sourceRows":167},"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":"4500256","name":"Elk Pit"},"operator":{"type":"operator","id":"L00311","name":"Mutual Materials Company"},"controller":{"type":"controller","id":"M00250","name":"Mutual Materials Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00250","name":"Mutual Materials Company"},"object":{"type":"mine","id":"4500256","name":"Elk Pit"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|M00250|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03139","name":"Moulden & Sons' Inc"},"object":{"type":"mine","id":"4500256","name":"Elk Pit"},"validFrom":"1950-01-01","validTo":"1989-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|L03139|1950-01-01|1989-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02531","name":"Moulden Ronald F"},"object":{"type":"mine","id":"4500256","name":"Elk Pit"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|M02531|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02531","name":"Moulden Ronald F"},"object":{"type":"operator","id":"L03139","name":"Moulden & Sons' Inc"},"validFrom":"1950-01-01","validTo":"1989-05-31","current":false,"derived":true,"evidenceMineId":"4500256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|L03139|1950-01-01|M02531|1950-01-01|125874"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11613","name":"Stowe Construction Inc"},"object":{"type":"mine","id":"4500256","name":"Elk Pit"},"validFrom":"1989-06-01","validTo":"2003-03-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|L11613|1989-06-01|2003-03-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08971","name":"Stowe Linda & Bryan"},"object":{"type":"mine","id":"4500256","name":"Elk Pit"},"validFrom":"1989-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|M08971|1989-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08971","name":"Stowe Linda & Bryan"},"object":{"type":"operator","id":"L11613","name":"Stowe Construction Inc"},"validFrom":"1989-06-01","validTo":"2003-03-30","current":false,"derived":true,"evidenceMineId":"4500256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|L11613|1989-06-01|M08971|1989-06-01|144782"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00311","name":"Mutual Materials Company"},"object":{"type":"mine","id":"4500256","name":"Elk Pit"},"validFrom":"2003-03-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|L00311|2003-03-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00250","name":"Mutual Materials Company"},"object":{"type":"operator","id":"L00311","name":"Mutual Materials Company"},"validFrom":"2003-03-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"4500256","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4500256|L00311|2003-03-31|M00250|1950-01-01|108183"}}],"coverage":{"historyRecords":3,"edgeCount":9,"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":"2015-10-01","lastDate":"2015-10-01","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":1,"firstDate":"2004-04-13","lastDate":"2004-04-13","metrics":{"ss":0,"delinquent":1,"recentRows":0,"paidPenalty":60,"proposedPenalty":60,"currentAssessment":60},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"549911","VIOLATION_NO":"6355476","ISSUE_DT":"04/13/2004","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":"2004-04-13"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":63,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-yearly","name":"Contractor Employment and Production — Yearly","domains":["contractors","production","safety"],"products":["long-run contractor trend","annual denominator reconciliation"],"rowCount":16,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"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":"1950-01-01","lastDate":"2003-03-31","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":"2003-07-30","lastDate":"2009-05-27","metrics":{"inspectors":9,"recentRows":0,"onSiteHours":51.5,"inspectionHours":83,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"846278","EVENT_NO":"1144612","INSPECTION_BEGIN_DT":"05/27/2009","INSPECTION_END_DT":"05/27/2009","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2009-05-27"},{"SOURCE_ROW_NUMBER":"367950","EVENT_NO":"1134868","INSPECTION_BEGIN_DT":"05/15/2008","INSPECTION_END_DT":"05/15/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2008-05-15"},{"SOURCE_ROW_NUMBER":"380778","EVENT_NO":"1134361","INSPECTION_BEGIN_DT":"08/29/2007","INSPECTION_END_DT":"08/29/2007","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2007-08-29"},{"SOURCE_ROW_NUMBER":"437131","EVENT_NO":"1077324","INSPECTION_BEGIN_DT":"02/07/2007","INSPECTION_END_DT":"02/07/2007","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2007-02-07"},{"SOURCE_ROW_NUMBER":"317899","EVENT_NO":"1131857","INSPECTION_BEGIN_DT":"08/28/2006","INSPECTION_END_DT":"08/28/2006","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2006-08-28"},{"SOURCE_ROW_NUMBER":"221195","EVENT_NO":"1123531","INSPECTION_BEGIN_DT":"06/02/2005","INSPECTION_END_DT":"06/02/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2005-06-02"},{"SOURCE_ROW_NUMBER":"147515","EVENT_NO":"1118875","INSPECTION_BEGIN_DT":"10/26/2004","INSPECTION_END_DT":"10/26/2004","ACTIVITY_CODE":"10","ACTIVITY":"ATTEMPTED INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2004-10-26"},{"SOURCE_ROW_NUMBER":"1070000","EVENT_NO":"1118493","INSPECTION_BEGIN_DT":"04/12/2004","INSPECTION_END_DT":"04/13/2004","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"37","SUM_TOTAL_ON_SITE_HOURS":"25","sourceDate":"2004-04-12"},{"SOURCE_ROW_NUMBER":"470252","EVENT_NO":"1116488","INSPECTION_BEGIN_DT":"07/30/2003","INSPECTION_END_DT":"07/30/2003","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2003-07-30"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":59,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2010-Q3":{"hours":22,"employees":1,"production":0},"2010-Q2":{"hours":10,"employees":1,"production":0},"2010-Q1":{"hours":22,"employees":1,"production":0},"2009-Q4":{"hours":0,"employees":0,"production":0},"2009-Q3":{"hours":24,"employees":1,"production":0},"2009-Q2":{"hours":25,"employees":1,"production":0},"2009-Q1":{"hours":16,"employees":1,"production":0},"2008-Q4":{"hours":24,"employees":1,"production":0},"2008-Q3":{"hours":15,"employees":1,"production":0},"2008-Q2":{"hours":32,"employees":1,"production":0},"2008-Q1":{"hours":48,"employees":2,"production":0},"2007-Q4":{"hours":52,"employees":2,"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":12,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2003":{"hours":395,"employees":5,"production":0},"2004":{"hours":120,"employees":1,"production":0},"2005":{"hours":234,"employees":3,"production":0},"2006":{"hours":198,"employees":1,"production":0},"2007":{"hours":470,"employees":2,"production":0},"2008":{"hours":119,"employees":2,"production":0},"2009":{"hours":65,"employees":1,"production":0},"2010":{"hours":54,"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-personal-health-samples","name":"Metal and Nonmetal Personal Health Samples","domains":["health","safety"],"products":["personal exposure trend","occupation patterns","analyte coverage"],"rowCount":1,"firstDate":"2004-04-13","lastDate":"2004-04-13","metrics":{"recentRows":0,"actionTaken":1,"maxExposureRatio":0,"overExposureLimit":0,"exposureRatioTotal":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"40221","EVENT_NO":"1118493","SAMPLE_NO":"000000200403634900","SAMPLE_DATE":"04/13/2004","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Bulldozer Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2004-04-13"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":1,"firstDate":"2004-04-13","lastDate":"2004-04-13","metrics":{"ss":0,"amountDue":60,"contested":0,"amountPaid":60,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":60},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2447912","VIOLATION_NO":"6355476","VIOLATION_ISSUE_DT":"04/13/2004","SIG_SUB":"N","PART_SECTION":"56.18010","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/03/2004","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2004-04-13"}]}],"safety":{"href":"/api/v1/mines/4500256/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4500256/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":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4500256","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}