{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"0404909","name":"Chili Gulch Rock","status":"Abandoned","status_date":"2025-06-30","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"CA","county":"Calaveras","nearest_town":"Calaveras","operator_id":"0108185","operator_name":"Kellog Creek Aggregates Inc","controller_id":"0091553","controller_name":"Sherri  Mognaga","district":"M7","office":"Vacaville CA Field Office","employees":0,"latitude":38.321111,"longitude":-120.526111},"coverage":{"contributingSources":8,"registeredSources":20,"sourceRows":24},"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":"0404909","name":"Chili Gulch Rock"},"operator":{"type":"operator","id":"0108185","name":"Kellog Creek Aggregates Inc"},"controller":{"type":"controller","id":"0091553","name":"Sherri  Mognaga"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L40360","name":"Wolin & Sons Inc"},"object":{"type":"mine","id":"0404909","name":"Chili Gulch Rock"},"validFrom":"1987-10-01","validTo":"2022-09-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404909|L40360|1987-10-01|2022-09-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M40360","name":"Wolin William E"},"object":{"type":"mine","id":"0404909","name":"Chili Gulch Rock"},"validFrom":"1987-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404909|M40360|1987-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M40360","name":"Wolin William E"},"object":{"type":"operator","id":"L40360","name":"Wolin & Sons Inc"},"validFrom":"1987-10-01","validTo":"2022-09-13","current":false,"derived":true,"evidenceMineId":"0404909","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404909|L40360|1987-10-01|M40360|1987-10-01|170060"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0091553","name":"Sherri  Mognaga"},"object":{"type":"mine","id":"0404909","name":"Chili Gulch Rock"},"validFrom":"2010-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404909|0091553|2010-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0108185","name":"Kellog Creek Aggregates Inc"},"object":{"type":"mine","id":"0404909","name":"Chili Gulch Rock"},"validFrom":"2022-09-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404909|0108185|2022-09-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0091553","name":"Sherri  Mognaga"},"object":{"type":"operator","id":"0108185","name":"Kellog Creek Aggregates Inc"},"validFrom":"2022-09-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"0404909","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404909|0108185|2022-09-14|0091553|2010-01-01|14696"}}],"coverage":{"historyRecords":2,"edgeCount":6,"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":"2025-06-30","lastDate":"2025-06-30","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":"2024-08-28","lastDate":"2024-08-28","metrics":{"ss":0,"delinquent":1,"recentRows":1,"paidPenalty":147,"proposedPenalty":147,"currentAssessment":147},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2969212","VIOLATION_NO":"9999510","ISSUE_DT":"08/28/2024","CFR_STANDARD_CD":"50.30(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"147.00","CURRENT_ASSESSMENT_AMT":"147.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-08-28"}]},{"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":"1987-10-01","lastDate":"2022-09-14","metrics":{"recentRows":1,"currentOperatorTenures":1,"completedOperatorTenures":1},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":3,"firstDate":"2023-08-02","lastDate":"2025-02-25","metrics":{"inspectors":3,"recentRows":3,"onSiteHours":9.75,"inspectionHours":22.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"895626","EVENT_NO":"F011114","INSPECTION_BEGIN_DT":"02/25/2025","INSPECTION_END_DT":"03/03/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.75","SUM_TOTAL_ON_SITE_HOURS":"4.5","sourceDate":"2025-02-25"},{"SOURCE_ROW_NUMBER":"508898","EVENT_NO":"F014E87","INSPECTION_BEGIN_DT":"08/26/2024","INSPECTION_END_DT":"08/28/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12.25","SUM_TOTAL_ON_SITE_HOURS":"4.5","sourceDate":"2024-08-26"},{"SOURCE_ROW_NUMBER":"557825","EVENT_NO":"6875915","INSPECTION_BEGIN_DT":"08/02/2023","INSPECTION_END_DT":"08/02/2023","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3.5","SUM_TOTAL_ON_SITE_HOURS":".75","sourceDate":"2023-08-02"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":11,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2025-Q2":{"hours":234,"employees":1,"production":0},"2025-Q1":{"hours":60,"employees":1,"production":0},"2024-Q4":{"hours":52,"employees":1,"production":0},"2024-Q3":{"hours":130,"employees":2,"production":0},"2024-Q2":{"hours":121,"employees":2,"production":0},"2024-Q1":{"hours":173,"employees":2,"production":0},"2023-Q4":{"hours":214,"employees":2,"production":0},"2023-Q3":{"hours":197,"employees":1,"production":0},"2023-Q2":{"hours":284,"employees":2,"production":0},"2023-Q1":{"hours":248,"employees":2,"production":0},"2022-Q4":{"hours":816,"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":4,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2022":{"hours":816,"employees":2,"production":0},"2023":{"hours":943,"employees":2,"production":0},"2024":{"hours":476,"employees":2,"production":0},"2025":{"hours":294,"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":1,"firstDate":"2024-08-28","lastDate":"2024-08-28","metrics":{"ss":0,"amountDue":147,"contested":0,"amountPaid":147,"recentRows":1,"section104d":0,"unterminated":0,"proposedPenalty":147},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"248669","VIOLATION_NO":"9999510","VIOLATION_ISSUE_DT":"08/28/2024","SIG_SUB":"N","PART_SECTION":"50.30(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"08/28/2024","PROPOSED_PENALTY":"147","AMOUNT_DUE":"147","AMOUNT_PAID":"147","CONTESTED_IND":"N","sourceDate":"2024-08-28"}]}],"safety":{"href":"/api/v1/mines/0404909/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0404909/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":"Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30","part":"50","subchapter":"I","subpart":"D","id":"50.30","citation":"30 CFR 50.30","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER I—ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND PRODUCTION IN MINES","partHeading":"PART 50—NOTIFICATION, INVESTIGATION, REPORTS AND RECORDS OF ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"0404909","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}