{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-18T09:31:49.615Z","identity":{"mine_id":"2501168","name":"ELKHORN SAND & GRAVEL","status":"Abandoned","status_date":"2004-07-14","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"NE","county":"Holt","nearest_town":"Atkinson","operator_id":"L14690","operator_name":"Elkhorn Sand & Gravel","controller_id":"M11181","controller_name":"Greg S  Vogel","district":"M4","office":"Duluth District","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":8,"registeredSources":20,"sourceRows":39},"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":"2501168","name":"ELKHORN SAND & GRAVEL"},"operator":{"type":"operator","id":"L14690","name":"Elkhorn Sand & Gravel"},"controller":{"type":"controller","id":"M11181","name":"Greg S  Vogel"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14690","name":"Elkhorn Sand & Gravel"},"object":{"type":"mine","id":"2501168","name":"ELKHORN SAND & GRAVEL"},"validFrom":"1996-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2501168|L14690|1996-06-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11181","name":"Greg S  Vogel"},"object":{"type":"mine","id":"2501168","name":"ELKHORN SAND & GRAVEL"},"validFrom":"1996-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2501168|M11181|1996-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11181","name":"Greg S  Vogel"},"object":{"type":"operator","id":"L14690","name":"Elkhorn Sand & Gravel"},"validFrom":"1996-06-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2501168","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"2501168|L14690|1996-06-01|M11181|1996-06-01|150888"}}],"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":"2004-07-14","lastDate":"2004-07-14","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":"2002-07-31","lastDate":"2002-07-31","metrics":{"ss":0,"delinquent":3,"recentRows":0,"paidPenalty":165,"proposedPenalty":165,"currentAssessment":165},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"29288","VIOLATION_NO":"4653123","ISSUE_DT":"07/31/2002","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":"2002-07-31"},{"SOURCE_ROW_NUMBER":"29287","VIOLATION_NO":"4653122","ISSUE_DT":"07/31/2002","CFR_STANDARD_CD":"56.14100(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":"2002-07-31"},{"SOURCE_ROW_NUMBER":"29286","VIOLATION_NO":"4653121","ISSUE_DT":"07/31/2002","CFR_STANDARD_CD":"56.14103(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":"2002-07-31"}]},{"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":"1996-06-01","lastDate":"1996-06-01","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":7,"firstDate":"2000-04-26","lastDate":"2003-06-17","metrics":{"inspectors":7,"recentRows":0,"onSiteHours":18,"inspectionHours":40,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"357629","EVENT_NO":"0606480","INSPECTION_BEGIN_DT":"06/17/2003","INSPECTION_END_DT":"06/17/2003","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"14","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2003-06-17"},{"SOURCE_ROW_NUMBER":"1016178","EVENT_NO":"1066098","INSPECTION_BEGIN_DT":"04/30/2003","INSPECTION_END_DT":"04/30/2003","ACTIVITY_CODE":"40","ACTIVITY":"SPECIAL ENFORCEMENT 1","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2003-04-30"},{"SOURCE_ROW_NUMBER":"223084","EVENT_NO":"1065551","INSPECTION_BEGIN_DT":"10/30/2002","INSPECTION_END_DT":"10/30/2002","ACTIVITY_CODE":"10","ACTIVITY":"ATTEMPTED INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2002-10-30"},{"SOURCE_ROW_NUMBER":"137018","EVENT_NO":"1065544","INSPECTION_BEGIN_DT":"10/24/2002","INSPECTION_END_DT":"10/24/2002","ACTIVITY_CODE":"46","ACTIVITY":"SPECIAL ENFORCEMENT 4","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2002-10-24"},{"SOURCE_ROW_NUMBER":"595078","EVENT_NO":"1065446","INSPECTION_BEGIN_DT":"09/12/2002","INSPECTION_END_DT":"09/12/2002","ACTIVITY_CODE":"02","ACTIVITY":"COMPLIANCE FOLLOW-UP INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2002-09-12"},{"SOURCE_ROW_NUMBER":"192730","EVENT_NO":"0606717","INSPECTION_BEGIN_DT":"07/31/2002","INSPECTION_END_DT":"07/31/2002","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2002-07-31"},{"SOURCE_ROW_NUMBER":"418940","EVENT_NO":"0605120","INSPECTION_BEGIN_DT":"04/26/2000","INSPECTION_END_DT":"04/26/2000","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2000-04-26"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":19,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2004-Q3":{"hours":0,"employees":0,"production":0},"2004-Q2":{"hours":0,"employees":0,"production":0},"2004-Q1":{"hours":0,"employees":0,"production":0},"2003-Q4":{"hours":160,"employees":1,"production":0},"2003-Q3":{"hours":0,"employees":0,"production":0},"2003-Q2":{"hours":0,"employees":0,"production":0},"2003-Q1":{"hours":0,"employees":0,"production":0},"2002-Q4":{"hours":0,"employees":0,"production":0},"2002-Q3":{"hours":940,"employees":2,"production":0},"2002-Q2":{"hours":320,"employees":2,"production":0},"2002-Q1":{"hours":0,"employees":0,"production":0},"2001-Q4":{"hours":160,"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":4,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":840,"employees":1,"production":0},"2001":{"hours":2200,"employees":2,"production":0},"2002":{"hours":1260,"employees":2,"production":0},"2003":{"hours":160,"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":"2002-07-31","lastDate":"2002-07-31","metrics":{"ss":0,"amountDue":165,"contested":0,"amountPaid":165,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":165},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1496669","VIOLATION_NO":"4653123","VIOLATION_ISSUE_DT":"07/31/2002","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/12/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-07-31"},{"SOURCE_ROW_NUMBER":"1496668","VIOLATION_NO":"4653122","VIOLATION_ISSUE_DT":"07/31/2002","SIG_SUB":"N","PART_SECTION":"56.14100(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/12/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-07-31"},{"SOURCE_ROW_NUMBER":"1496667","VIOLATION_NO":"4653121","VIOLATION_ISSUE_DT":"07/31/2002","SIG_SUB":"N","PART_SECTION":"56.14103(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/12/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-07-31"}]}],"safety":{"href":"/api/v1/mines/2501168/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2501168/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":"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":"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":1},{"chapter":"I","heading":"Operators stations.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14103","part":"56","subchapter":"K","subpart":"M","id":"56.14103","citation":"30 CFR 56.14103","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":"2501168","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}