{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"4105861","name":"BISON PIT","status":"Intermittent","status_date":"2026-09-18","mine_type":"Surface","coal_metal":"M","commodity":"Crushed, Broken Limestone NEC","state":"TX","county":"Potter","nearest_town":"Amarillo Texas","operator_id":"0188513","operator_name":"WES AGG,LLC","controller_id":"0199441","controller_name":"JW  Thomas; Travis  Thomas","district":"M5","office":"Norman OK Field Office","employees":14,"latitude":35.6414,"longitude":-101.5981},"coverage":{"contributingSources":9,"registeredSources":20,"sourceRows":20},"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":"4105861","name":"BISON PIT"},"operator":{"type":"operator","id":"0188513","name":"WES AGG,LLC"},"controller":{"type":"controller","id":"0199441","name":"JW  Thomas; Travis  Thomas"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0176401","name":"Travis  Thomas et al"},"object":{"type":"mine","id":"4105861","name":"BISON PIT"},"validFrom":"2023-05-01","validTo":"2026-03-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4105861|0176401|2023-05-01|2026-03-30"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0188513","name":"WES AGG,LLC"},"object":{"type":"mine","id":"4105861","name":"BISON PIT"},"validFrom":"2026-03-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4105861|0188513|2026-03-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0176401","name":"Travis  Thomas et al"},"object":{"type":"operator","id":"0188513","name":"WES AGG,LLC"},"validFrom":"2026-03-31","validTo":"2026-03-30","current":false,"derived":true,"evidenceMineId":"4105861","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4105861|0188513|2026-03-31|0176401|2023-05-01|37617"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0176401","name":"John  Thomas et al"},"object":{"type":"operator","id":"0188513","name":"WES AGG,LLC"},"validFrom":"2026-03-31","validTo":"2026-03-30","current":false,"derived":true,"evidenceMineId":"4105861","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4105861|0188513|2026-03-31|0176401|2023-05-01|37618"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0176401","name":"JW  Thomas et al"},"object":{"type":"operator","id":"0188513","name":"WES AGG,LLC"},"validFrom":"2026-03-31","validTo":"2026-03-30","current":false,"derived":true,"evidenceMineId":"4105861","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4105861|0188513|2026-03-31|0176401|2023-05-01|37619"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0199441","name":"JW  Thomas et al"},"object":{"type":"mine","id":"4105861","name":"BISON PIT"},"validFrom":"2026-03-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4105861|0199441|2026-03-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0199441","name":"JW  Thomas et al"},"object":{"type":"operator","id":"0188513","name":"WES AGG,LLC"},"validFrom":"2026-03-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"4105861","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4105861|0188513|2026-03-31|0199441|2026-03-31|42473"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0199441","name":"Travis  Thomas et al"},"object":{"type":"operator","id":"0188513","name":"WES AGG,LLC"},"validFrom":"2026-03-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"4105861","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4105861|0188513|2026-03-31|0199441|2026-03-31|42474"}}],"coverage":{"historyRecords":5,"edgeCount":8,"intervalAnomalies":3,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":1,"firstDate":"2026-09-19","lastDate":"2026-09-19","metrics":{"daysLost":0,"injuries":1,"fatalities":0,"recentRows":1,"restrictedDays":6,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"67564","DOCUMENT_NO":"220262660020","ACCIDENT_DT":"09/19/2026","DEGREE_INJURY":"DAYS RESTRICTED ACTIVITY ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in pulling or pushing objects","OCCUPATION":"Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Employee was replacing broken machine guard on cone shaker.  Employee felt a \"pop\" in their neck and felt a sharp pain running down their back.","sourceDate":"2026-09-19"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2026-09-18","lastDate":"2026-09-18","metrics":{},"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":5,"firstDate":"2026-03-31","lastDate":"2026-03-31","metrics":{"recentRows":5,"currentOperatorTenures":5,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":1,"firstDate":"2026-09-14","lastDate":"2026-09-14","metrics":{"inspectors":1,"recentRows":1,"onSiteHours":14.5,"inspectionHours":27.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"529054","EVENT_NO":"F0510EB","INSPECTION_BEGIN_DT":"09/14/2026","INSPECTION_END_DT":"09/16/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"27.5","SUM_TOTAL_ON_SITE_HOURS":"14.5","sourceDate":"2026-09-14"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":2,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":8037,"employees":15,"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":2,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026":{"hours":8037,"employees":15,"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":4,"firstDate":"2026-09-15","lastDate":"2026-09-15","metrics":{"recentRows":4,"actionTaken":4,"maxExposureRatio":4.14,"overExposureLimit":1,"exposureRatioTotal":4.14},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"314476","EVENT_NO":"F0510EB","SAMPLE_NO":"000000202603815000","SAMPLE_DATE":"09/15/2026","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0002.86","EXPOSURE_LIMIT":"0000.69","C_OVER_E":"04.14","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"LAB RESULTS INDICATE EXPOSURE LIMIT EXCEEDED","sourceDate":"2026-09-15"},{"SOURCE_ROW_NUMBER":"314459","EVENT_NO":"F0510EB","SAMPLE_NO":"000000202603814700","SAMPLE_DATE":"09/15/2026","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Rotary Bucket Ex. Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-09-15"},{"SOURCE_ROW_NUMBER":"314399","EVENT_NO":"F0510EB","SAMPLE_NO":"000000202603814800","SAMPLE_DATE":"09/15/2026","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-09-15"},{"SOURCE_ROW_NUMBER":"314243","EVENT_NO":"F0510EB","SAMPLE_NO":"000000202603814900","SAMPLE_DATE":"09/15/2026","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Supervisor, Co. Official","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2026-09-15"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":3,"firstDate":"2026-09-14","lastDate":"2026-09-28","metrics":{"ss":2,"amountDue":0,"contested":0,"amountPaid":0,"recentRows":3,"section104d":0,"unterminated":2,"proposedPenalty":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2211878","VIOLATION_NO":"5175543","VIOLATION_ISSUE_DT":"09/28/2026","SIG_SUB":"Y","PART_SECTION":"56.5002","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","CONTESTED_IND":"N","sourceDate":"2026-09-28"},{"SOURCE_ROW_NUMBER":"2211877","VIOLATION_NO":"5175542","VIOLATION_ISSUE_DT":"09/28/2026","SIG_SUB":"Y","PART_SECTION":"56.5001(a)/56.5005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","CONTESTED_IND":"N","sourceDate":"2026-09-28"},{"SOURCE_ROW_NUMBER":"2211876","VIOLATION_NO":"5175533","VIOLATION_ISSUE_DT":"09/14/2026","SIG_SUB":"N","PART_SECTION":"56.12008","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/14/2026","CONTESTED_IND":"N","sourceDate":"2026-09-14"}]}],"safety":{"href":"/api/v1/mines/4105861/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4105861/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":"Exposure monitoring.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5002","part":"56","subchapter":"K","subpart":"D","id":"56.5002","citation":"30 CFR 56.5002","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":"Exposure limits for airborne contaminants.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-D/section-56.5001","part":"56","subchapter":"K","subpart":"D","id":"56.5001","citation":"30 CFR 56.5001","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":"4105861","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}