{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-18T09:31:49.615Z","identity":{"mine_id":"4703935","name":"Pioneer 2854 Portable Jaw Crusher","status":"Intermittent","status_date":"2023-02-07","mine_type":"Surface","coal_metal":"M","commodity":"Crushed, Broken Stone NEC","state":"WI","county":"Fond Du Lac","nearest_town":"Waupun, WI","operator_id":"0183093","operator_name":"Kartechner Brothers LLC","controller_id":"0169541","controller_name":"David  Kartechner; Nick  Kartechner","district":"M4","office":"Peru IL Field Office","employees":2,"latitude":43.793056,"longitude":-88.738889},"coverage":{"contributingSources":9,"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":"4703935","name":"Pioneer 2854 Portable Jaw Crusher"},"operator":{"type":"operator","id":"0183093","name":"Kartechner Brothers LLC"},"controller":{"type":"controller","id":"0169541","name":"David  Kartechner; Nick  Kartechner"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0169541","name":"Nick  Kartechner et al"},"object":{"type":"mine","id":"4703935","name":"Pioneer 2854 Portable Jaw Crusher"},"validFrom":"2022-05-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703935|0169541|2022-05-04|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0183093","name":"Kartechner Brothers LLC"},"object":{"type":"mine","id":"4703935","name":"Pioneer 2854 Portable Jaw Crusher"},"validFrom":"2023-03-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703935|0183093|2023-03-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0169541","name":"Nick  Kartechner et al"},"object":{"type":"operator","id":"0183093","name":"Kartechner Brothers LLC"},"validFrom":"2023-03-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703935","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703935|0183093|2023-03-10|0169541|2022-05-04|35829"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0169541","name":"David  Kartechner et al"},"object":{"type":"operator","id":"0183093","name":"Kartechner Brothers LLC"},"validFrom":"2023-03-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"4703935","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4703935|0183093|2023-03-10|0169541|2022-05-04|35830"}}],"coverage":{"historyRecords":2,"edgeCount":4,"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":"2023-02-07","lastDate":"2023-02-07","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":5,"firstDate":"2024-03-19","lastDate":"2025-03-27","metrics":{"ss":1,"delinquent":5,"recentRows":5,"paidPenalty":747,"proposedPenalty":747,"currentAssessment":747},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2976869","VIOLATION_NO":"9695771","ISSUE_DT":"03/27/2025","CFR_STANDARD_CD":"56.12025","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-03-27"},{"SOURCE_ROW_NUMBER":"2976868","VIOLATION_NO":"9695770","ISSUE_DT":"03/27/2025","CFR_STANDARD_CD":"56.4101","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-03-27"},{"SOURCE_ROW_NUMBER":"2976867","VIOLATION_NO":"9695769","ISSUE_DT":"03/27/2025","CFR_STANDARD_CD":"56.14100(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-03-27"},{"SOURCE_ROW_NUMBER":"2704514","VIOLATION_NO":"9695407","ISSUE_DT":"03/19/2024","CFR_STANDARD_CD":"56.14100(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"147.00","CURRENT_ASSESSMENT_AMT":"147.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-03-19"},{"SOURCE_ROW_NUMBER":"2704513","VIOLATION_NO":"9695406","ISSUE_DT":"03/19/2024","CFR_STANDARD_CD":"56.11002","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"147.00","CURRENT_ASSESSMENT_AMT":"147.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-03-19"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":2,"firstDate":"2023-03-10","lastDate":"2023-03-10","metrics":{"recentRows":2,"currentOperatorTenures":2,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":5,"firstDate":"2023-06-28","lastDate":"2025-12-08","metrics":{"inspectors":5,"recentRows":5,"onSiteHours":26.25,"inspectionHours":62.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"55246","EVENT_NO":"F02A5C4","INSPECTION_BEGIN_DT":"12/08/2025","INSPECTION_END_DT":"12/09/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"17.25","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2025-12-08"},{"SOURCE_ROW_NUMBER":"710820","EVENT_NO":"F02A5C3","INSPECTION_BEGIN_DT":"12/02/2025","INSPECTION_END_DT":"12/03/2025","ACTIVITY_CODE":"E16","ACTIVITY":"Spot Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3.75","SUM_TOTAL_ON_SITE_HOURS":"1.25","sourceDate":"2025-12-02"},{"SOURCE_ROW_NUMBER":"1008153","EVENT_NO":"F0165FF","INSPECTION_BEGIN_DT":"03/26/2025","INSPECTION_END_DT":"03/28/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"21.5","SUM_TOTAL_ON_SITE_HOURS":"9.5","sourceDate":"2025-03-26"},{"SOURCE_ROW_NUMBER":"864357","EVENT_NO":"6909772","INSPECTION_BEGIN_DT":"03/18/2024","INSPECTION_END_DT":"03/19/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"17","SUM_TOTAL_ON_SITE_HOURS":"7","sourceDate":"2024-03-18"},{"SOURCE_ROW_NUMBER":"736672","EVENT_NO":"6905470","INSPECTION_BEGIN_DT":"06/28/2023","INSPECTION_END_DT":"06/28/2023","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2023-06-28"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":13,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":3154,"employees":4,"production":0},"2026-Q1":{"hours":3222,"employees":5,"production":0},"2025-Q4":{"hours":1705,"employees":4,"production":0},"2025-Q3":{"hours":2043,"employees":4,"production":0},"2025-Q2":{"hours":1484,"employees":4,"production":0},"2025-Q1":{"hours":930,"employees":4,"production":0},"2024-Q4":{"hours":2155,"employees":5,"production":0},"2024-Q3":{"hours":1896,"employees":3,"production":0},"2024-Q2":{"hours":1878,"employees":4,"production":0},"2024-Q1":{"hours":1692,"employees":3,"production":0},"2023-Q4":{"hours":2007,"employees":4,"production":0},"2023-Q3":{"hours":892,"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":4,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2023":{"hours":3462,"employees":3,"production":0},"2024":{"hours":7621,"employees":4,"production":0},"2025":{"hours":6162,"employees":4,"production":0},"2026":{"hours":6376,"employees":5,"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":3,"firstDate":"2024-03-19","lastDate":"2025-12-09","metrics":{"recentRows":3,"actionTaken":3,"maxExposureRatio":0.53,"overExposureLimit":0,"exposureRatioTotal":0.53},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"308290","EVENT_NO":"F02A5C4","SAMPLE_NO":"000000202505364800","SAMPLE_DATE":"12/09/2025","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":"2025-12-09"},{"SOURCE_ROW_NUMBER":"283163","EVENT_NO":"6909772","SAMPLE_NO":"000000202401312400","SAMPLE_DATE":"03/19/2024","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.81","EXPOSURE_LIMIT":"0001.54","C_OVER_E":"00.53","JOB_CD_DESC":"Backhoe Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2024-03-19"},{"SOURCE_ROW_NUMBER":"283162","EVENT_NO":"6909772","SAMPLE_NO":"000000202401312300","SAMPLE_DATE":"03/19/2024","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Cleanup Man","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2024-03-19"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":5,"firstDate":"2024-03-19","lastDate":"2025-03-27","metrics":{"ss":1,"amountDue":747,"contested":0,"amountPaid":747,"recentRows":5,"section104d":0,"unterminated":0,"proposedPenalty":747},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"3035767","VIOLATION_NO":"9695771","VIOLATION_ISSUE_DT":"03/27/2025","SIG_SUB":"N","PART_SECTION":"56.12025","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/27/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-03-27"},{"SOURCE_ROW_NUMBER":"3035766","VIOLATION_NO":"9695770","VIOLATION_ISSUE_DT":"03/27/2025","SIG_SUB":"N","PART_SECTION":"56.4101","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/27/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-03-27"},{"SOURCE_ROW_NUMBER":"3035765","VIOLATION_NO":"9695769","VIOLATION_ISSUE_DT":"03/27/2025","SIG_SUB":"N","PART_SECTION":"56.14100(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/27/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-03-27"},{"SOURCE_ROW_NUMBER":"3035764","VIOLATION_NO":"9695407","VIOLATION_ISSUE_DT":"03/19/2024","SIG_SUB":"N","PART_SECTION":"56.14100(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/19/2024","PROPOSED_PENALTY":"147","AMOUNT_DUE":"147","AMOUNT_PAID":"147","CONTESTED_IND":"N","sourceDate":"2024-03-19"},{"SOURCE_ROW_NUMBER":"3035763","VIOLATION_NO":"9695406","VIOLATION_ISSUE_DT":"03/19/2024","SIG_SUB":"Y","PART_SECTION":"56.11002","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/19/2024","PROPOSED_PENALTY":"147","AMOUNT_DUE":"147","AMOUNT_PAID":"147","CONTESTED_IND":"N","sourceDate":"2024-03-19"}]}],"safety":{"href":"/api/v1/mines/4703935/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4703935/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":"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":"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","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":"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}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4703935","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}