{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2601776","name":"Spring Valley","status":"Abandoned","status_date":"2002-12-04","mine_type":"Surface","coal_metal":"M","commodity":"Gold Ore","state":"NV","county":"Lyon","nearest_town":"silver city","operator_id":"0050494","operator_name":"Geo-Nevada Inc.","controller_id":"0040866","controller_name":"Hau Sun  Ho","district":"M7","office":"Henderson NV Field Office","employees":0,"latitude":39.263902,"longitude":-119.63666},"coverage":{"contributingSources":9,"registeredSources":20,"sourceRows":19},"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":"2601776","name":"Spring Valley"},"operator":{"type":"operator","id":"0050494","name":"Geo-Nevada Inc."},"controller":{"type":"controller","id":"0040866","name":"Hau Sun  Ho"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10893","name":"Nova Technology International Inc"},"object":{"type":"mine","id":"2601776","name":"Spring Valley"},"validFrom":"1981-11-01","validTo":"1988-03-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|L10893|1981-11-01|1988-03-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08437","name":"Nova Technology International Inc"},"object":{"type":"mine","id":"2601776","name":"Spring Valley"},"validFrom":"1981-11-01","validTo":"1988-03-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|M08437|1981-11-01|1988-03-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08437","name":"Nova Technology International Inc"},"object":{"type":"operator","id":"L10893","name":"Nova Technology International Inc"},"validFrom":"1981-11-01","validTo":"1988-03-30","current":false,"derived":true,"evidenceMineId":"2601776","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|L10893|1981-11-01|M08437|1981-11-01|143356"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10894","name":"Gold Bug Joint Venture"},"object":{"type":"mine","id":"2601776","name":"Spring Valley"},"validFrom":"1988-03-31","validTo":"2002-01-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|L10894|1988-03-31|2002-01-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08438","name":"Cahan Leslie L & Robert W Craig"},"object":{"type":"mine","id":"2601776","name":"Spring Valley"},"validFrom":"1988-03-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|M08438|1988-03-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08438","name":"Cahan Leslie L & Robert W Craig"},"object":{"type":"operator","id":"L10894","name":"Gold Bug Joint Venture"},"validFrom":"1988-03-31","validTo":"2002-01-03","current":false,"derived":true,"evidenceMineId":"2601776","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|L10894|1988-03-31|M08438|1988-03-31|143357"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050494","name":"Geo-Nevada Inc."},"object":{"type":"mine","id":"2601776","name":"Spring Valley"},"validFrom":"2002-01-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|0050494|2002-01-04|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0040866","name":"Hau Sun  Ho"},"object":{"type":"mine","id":"2601776","name":"Spring Valley"},"validFrom":"2002-01-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|0040866|2002-01-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040866","name":"Hau Sun  Ho"},"object":{"type":"operator","id":"0050494","name":"Geo-Nevada Inc."},"validFrom":"2002-01-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"2601776","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601776|0050494|2002-01-04|0040866|2002-01-04|850"}}],"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":"2002-12-04","lastDate":"2002-12-04","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":"2001-10-04","lastDate":"2001-10-04","metrics":{"ss":0,"delinquent":1,"recentRows":0,"paidPenalty":0,"proposedPenalty":55,"currentAssessment":55},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"15928","VIOLATION_NO":"6277150","ISSUE_DT":"10/04/2001","CFR_STANDARD_CD":"56.1000","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-10-04"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":2,"firstDate":"2001-10-22","lastDate":"2001-10-22","metrics":{"linkedIssuances":2},"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":"1981-11-01","lastDate":"2002-01-04","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":4,"firstDate":"2001-10-04","lastDate":"2002-04-03","metrics":{"inspectors":4,"recentRows":0,"onSiteHours":11,"inspectionHours":36,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"489015","EVENT_NO":"0622416","INSPECTION_BEGIN_DT":"04/03/2002","INSPECTION_END_DT":"04/03/2002","ACTIVITY_CODE":"02","ACTIVITY":"COMPLIANCE FOLLOW-UP INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2002-04-03"},{"SOURCE_ROW_NUMBER":"937814","EVENT_NO":"0622410","INSPECTION_BEGIN_DT":"02/27/2002","INSPECTION_END_DT":"02/27/2002","ACTIVITY_CODE":"10","ACTIVITY":"ATTEMPTED INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2002-02-27"},{"SOURCE_ROW_NUMBER":"785954","EVENT_NO":"0481860","INSPECTION_BEGIN_DT":"10/05/2001","INSPECTION_END_DT":"10/05/2001","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2001-10-05"},{"SOURCE_ROW_NUMBER":"229556","EVENT_NO":"0481859","INSPECTION_BEGIN_DT":"10/04/2001","INSPECTION_END_DT":"10/05/2001","ACTIVITY_CODE":"13","ACTIVITY":"HAZARD COMPLAINT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"19","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2001-10-04"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":4,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2002-Q4":{"hours":480,"employees":1,"production":0},"2002-Q3":{"hours":480,"employees":1,"production":0},"2002-Q2":{"hours":480,"employees":1,"production":0},"2002-Q1":{"hours":480,"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":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2002":{"hours":1920,"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":2,"firstDate":"2001-10-04","lastDate":"2001-10-05","metrics":{"ss":1,"amountDue":55,"contested":0,"amountPaid":0,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":55},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1520290","VIOLATION_NO":"6277151","VIOLATION_ISSUE_DT":"10/05/2001","SIG_SUB":"Y","PART_SECTION":"56.20011","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/03/2002","CONTESTED_IND":"N","sourceDate":"2001-10-05"},{"SOURCE_ROW_NUMBER":"1520289","VIOLATION_NO":"6277150","VIOLATION_ISSUE_DT":"10/04/2001","SIG_SUB":"N","PART_SECTION":"56.1000","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/04/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2001-10-04"}]}],"safety":{"href":"/api/v1/mines/2601776/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2601776/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":"Barricades and warning signs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011","part":"56","subchapter":"K","subpart":"S","id":"56.20011","citation":"30 CFR 56.20011","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":"Notification of commencement of operations and closing of mines.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-A/section-56.1000","part":"56","subchapter":"K","subpart":"A","id":"56.1000","citation":"30 CFR 56.1000","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":"2601776","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}