{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-18T09:31:49.615Z","identity":{"mine_id":"4104857","name":"PRESIDIO RIO GRANDE LEVEE","status":"Abandoned","status_date":"2016-10-21","mine_type":"Surface","coal_metal":"M","commodity":"Clay, Ceramic, Refractory Mnls.","state":"TX","county":"Presidio","nearest_town":"PRESIDIO","operator_id":"0117391","operator_name":"TIERRA MINING MATERIALS, L.L.C.","controller_id":"0099403","controller_name":"Raul  Villa; Bruce R  Sullivan","district":"M5","office":"Carlsbad NM Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":10,"registeredSources":20,"sourceRows":61},"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":"4104857","name":"PRESIDIO RIO GRANDE LEVEE"},"operator":{"type":"operator","id":"0117391","name":"TIERRA MINING MATERIALS, L.L.C."},"controller":{"type":"controller","id":"0099403","name":"Raul  Villa; Bruce R  Sullivan"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0117391","name":"TIERRA MINING MATERIALS, L.L.C."},"object":{"type":"mine","id":"4104857","name":"PRESIDIO RIO GRANDE LEVEE"},"validFrom":"2011-02-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4104857|0117391|2011-02-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0099403","name":"Raul  Villa et al"},"object":{"type":"mine","id":"4104857","name":"PRESIDIO RIO GRANDE LEVEE"},"validFrom":"2011-02-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4104857|0099403|2011-02-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0099403","name":"Raul  Villa et al"},"object":{"type":"operator","id":"0117391","name":"TIERRA MINING MATERIALS, L.L.C."},"validFrom":"2011-02-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"4104857","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4104857|0117391|2011-02-22|0099403|2011-02-22|16416"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0099403","name":"Bruce R  Sullivan et al"},"object":{"type":"operator","id":"0117391","name":"TIERRA MINING MATERIALS, L.L.C."},"validFrom":"2011-02-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"4104857","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4104857|0117391|2011-02-22|0099403|2011-02-22|16417"}}],"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":"2016-10-21","lastDate":"2016-10-21","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":8,"firstDate":"2011-02-22","lastDate":"2012-03-12","metrics":{"ss":4,"delinquent":8,"recentRows":0,"paidPenalty":2400,"proposedPenalty":4886,"currentAssessment":2500},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2116562","VIOLATION_NO":"8676079","ISSUE_DT":"03/12/2012","CFR_STANDARD_CD":"56.1000","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2012-03-12"},{"SOURCE_ROW_NUMBER":"2100280","VIOLATION_NO":"8615272","ISSUE_DT":"02/23/2011","CFR_STANDARD_CD":"46.9(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-02-23"},{"SOURCE_ROW_NUMBER":"2100279","VIOLATION_NO":"8615271","ISSUE_DT":"02/23/2011","CFR_STANDARD_CD":"56.14132(b)(1)(i)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-02-23"},{"SOURCE_ROW_NUMBER":"2100278","VIOLATION_NO":"8615270","ISSUE_DT":"02/22/2011","CFR_STANDARD_CD":"56.12028","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"243.00","CURRENT_ASSESSMENT_AMT":"243.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"2100277","VIOLATION_NO":"8615269","ISSUE_DT":"02/22/2011","CFR_STANDARD_CD":"41.11(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"2100276","VIOLATION_NO":"8615267","ISSUE_DT":"02/22/2011","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"2000.00","CURRENT_ASSESSMENT_AMT":"807.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"2100275","VIOLATION_NO":"8615266","ISSUE_DT":"02/22/2011","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"2000.00","CURRENT_ASSESSMENT_AMT":"807.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"2100274","VIOLATION_NO":"8615265","ISSUE_DT":"02/22/2011","CFR_STANDARD_CD":"56.12032","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"243.00","CURRENT_ASSESSMENT_AMT":"243.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2011-02-22"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":5,"firstDate":"2012-02-27","lastDate":"2012-02-27","metrics":{"appeals":0,"decisions":5,"recentRows":0,"decisionPenalty":2200,"originalPenalty":4586},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"346595","VIOLATION_NO":"8615267","DOCKET_NO":"CENT 2012-117M","DECISION_DT":"02/27/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"2000.00","DECISION_PENALTY_AMT":"807.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2012-02-27"},{"SOURCE_ROW_NUMBER":"105744","VIOLATION_NO":"8615266","DOCKET_NO":"CENT 2012-117M","DECISION_DT":"02/27/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"2000.00","DECISION_PENALTY_AMT":"807.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2012-02-27"},{"SOURCE_ROW_NUMBER":"105180","VIOLATION_NO":"8615269","DOCKET_NO":"CENT 2012-118M","DECISION_DT":"02/27/2012","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2012-02-27"},{"SOURCE_ROW_NUMBER":"105179","VIOLATION_NO":"8615265","DOCKET_NO":"CENT 2012-118M","DECISION_DT":"02/27/2012","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"243.00","DECISION_PENALTY_AMT":"243.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2012-02-27"},{"SOURCE_ROW_NUMBER":"105033","VIOLATION_NO":"8615270","DOCKET_NO":"CENT 2012-118M","DECISION_DT":"02/27/2012","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"243.00","DECISION_PENALTY_AMT":"243.00","JUDGE_FIRST_NAME":"Robert","JUDGE_LAST_NAME":"Lesnick","sourceDate":"2012-02-27"}]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":5,"firstDate":"2011-02-22","lastDate":"2011-02-22","metrics":{"decisions":5,"ssChanged":3,"recentRows":0,"decisionPenalty":2200,"proposedPenalty":4586},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"418312","CITATION_NO":"8615267","CITATION_ISSUE_DT":"02/22/2011","DOCKET_NO":"CENT 2012-117M","DECISION_DT":"02/27/2012","CFR_STANDARD_CODE":"56.14107(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"2000.00","DECISION_PENALTY_AMT":"807.00","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"361905","CITATION_NO":"8615266","CITATION_ISSUE_DT":"02/22/2011","DOCKET_NO":"CENT 2012-117M","DECISION_DT":"02/27/2012","CFR_STANDARD_CODE":"56.14107(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"2000.00","DECISION_PENALTY_AMT":"807.00","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"305799","CITATION_NO":"8615269","CITATION_ISSUE_DT":"02/22/2011","DOCKET_NO":"CENT 2012-118M","DECISION_DT":"02/27/2012","CFR_STANDARD_CODE":"41.11(a)","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"304936","CITATION_NO":"8615270","CITATION_ISSUE_DT":"02/22/2011","DOCKET_NO":"CENT 2012-118M","DECISION_DT":"02/27/2012","CFR_STANDARD_CODE":"56.12028","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"243.00","DECISION_PENALTY_AMT":"243.00","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"135622","CITATION_NO":"8615265","CITATION_ISSUE_DT":"02/22/2011","DOCKET_NO":"CENT 2012-118M","DECISION_DT":"02/27/2012","CFR_STANDARD_CODE":"56.12032","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"243.00","DECISION_PENALTY_AMT":"243.00","sourceDate":"2011-02-22"}]},{"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":"2011-02-22","lastDate":"2011-02-22","metrics":{"recentRows":0,"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":"2011-02-22","lastDate":"2012-03-12","metrics":{"inspectors":5,"recentRows":0,"onSiteHours":15,"inspectionHours":41.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"912918","EVENT_NO":"6549980","INSPECTION_BEGIN_DT":"03/12/2012","INSPECTION_END_DT":"03/12/2012","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2012-03-12"},{"SOURCE_ROW_NUMBER":"390798","EVENT_NO":"6549526","INSPECTION_BEGIN_DT":"05/04/2011","INSPECTION_END_DT":"05/05/2011","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"15","SUM_TOTAL_ON_SITE_HOURS":"6.5","sourceDate":"2011-05-04"},{"SOURCE_ROW_NUMBER":"1002632","EVENT_NO":"6542397","INSPECTION_BEGIN_DT":"02/28/2011","INSPECTION_END_DT":"02/28/2011","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2011-02-28"},{"SOURCE_ROW_NUMBER":"1054742","EVENT_NO":"6542394","INSPECTION_BEGIN_DT":"02/22/2011","INSPECTION_END_DT":"02/23/2011","ACTIVITY_CODE":"E04","ACTIVITY":"Verbal Hazard Complaint Inspections","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.5","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"255416","EVENT_NO":"6542395","INSPECTION_BEGIN_DT":"02/22/2011","INSPECTION_END_DT":"02/23/2011","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"4.5","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2011-02-22"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":24,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2016-Q4":{"hours":0,"employees":0,"production":0},"2016-Q3":{"hours":0,"employees":0,"production":0},"2016-Q2":{"hours":0,"employees":0,"production":0},"2016-Q1":{"hours":0,"employees":0,"production":0},"2015-Q4":{"hours":0,"employees":0,"production":0},"2015-Q3":{"hours":0,"employees":0,"production":0},"2015-Q2":{"hours":0,"employees":0,"production":0},"2015-Q1":{"hours":0,"employees":0,"production":0},"2014-Q4":{"hours":0,"employees":0,"production":0},"2014-Q3":{"hours":0,"employees":0,"production":0},"2014-Q2":{"hours":0,"employees":0,"production":0},"2014-Q1":{"hours":0,"employees":0,"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":{"2011":{"hours":5810,"employees":5,"production":0},"2012":{"hours":233,"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":8,"firstDate":"2011-02-22","lastDate":"2012-03-12","metrics":{"ss":4,"amountDue":2500,"contested":0,"amountPaid":2400,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":4886},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2186930","VIOLATION_NO":"8676079","VIOLATION_ISSUE_DT":"03/12/2012","SIG_SUB":"N","PART_SECTION":"56.1000","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/12/2012","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2012-03-12"},{"SOURCE_ROW_NUMBER":"2186929","VIOLATION_NO":"8615272","VIOLATION_ISSUE_DT":"02/23/2011","SIG_SUB":"N","PART_SECTION":"46.9(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/28/2011","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2011-02-23"},{"SOURCE_ROW_NUMBER":"2186928","VIOLATION_NO":"8615271","VIOLATION_ISSUE_DT":"02/23/2011","SIG_SUB":"N","PART_SECTION":"56.14132(b)(1)(i)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/28/2011","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2011-02-23"},{"SOURCE_ROW_NUMBER":"2186927","VIOLATION_NO":"8615270","VIOLATION_ISSUE_DT":"02/22/2011","SIG_SUB":"Y","PART_SECTION":"56.12028","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/23/2011","PROPOSED_PENALTY":"243","AMOUNT_DUE":"243","AMOUNT_PAID":"243","CONTESTED_IND":"N","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"2186926","VIOLATION_NO":"8615269","VIOLATION_ISSUE_DT":"02/22/2011","SIG_SUB":"N","PART_SECTION":"41.11(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/23/2011","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"2186925","VIOLATION_NO":"8615267","VIOLATION_ISSUE_DT":"02/22/2011","SIG_SUB":"Y","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"02/22/2011","PROPOSED_PENALTY":"2000","AMOUNT_DUE":"807","AMOUNT_PAID":"807","CONTESTED_IND":"N","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"2186924","VIOLATION_NO":"8615266","VIOLATION_ISSUE_DT":"02/22/2011","SIG_SUB":"Y","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"02/22/2011","PROPOSED_PENALTY":"2000","AMOUNT_DUE":"807","AMOUNT_PAID":"807","CONTESTED_IND":"N","sourceDate":"2011-02-22"},{"SOURCE_ROW_NUMBER":"2186923","VIOLATION_NO":"8615265","VIOLATION_ISSUE_DT":"02/22/2011","SIG_SUB":"Y","PART_SECTION":"56.12032","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/22/2011","PROPOSED_PENALTY":"243","AMOUNT_DUE":"243","AMOUNT_PAID":"243","CONTESTED_IND":"N","sourceDate":"2011-02-22"}]}],"safety":{"href":"/api/v1/mines/4104857/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4104857/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":"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},{"chapter":"I","heading":"Records of training.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9","part":"46","subchapter":"H","subpart":"","id":"46.9","citation":"30 CFR 46.9","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER H—EDUCATION AND TRAINING","partHeading":"PART 46—TRAINING AND RETRAINING OF MINERS ENGAGED IN SHELL DREDGING OR EMPLOYED AT SAND, GRAVEL, SURFACE STONE, SURFACE CLAY, COLLOIDAL PHOSPHATE, OR SURFACE LIMESTONE MINES.","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Horns and backup alarms.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132","part":"56","subchapter":"K","subpart":"M","id":"56.14132","citation":"30 CFR 56.14132","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":"Testing grounding systems.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028","part":"56","subchapter":"K","subpart":"K","id":"56.12028","citation":"30 CFR 56.12028","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 by operator.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.11","part":"41","subchapter":"G","subpart":"B","id":"41.11","citation":"30 CFR 41.11","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER G—FILING AND OTHER ADMINISTRATIVE REQUIREMENTS","partHeading":"PART 41—NOTIFICATION OF LEGAL IDENTITY","subpartHeading":"","text":null,"occurrenceCount":1},{"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":2},{"chapter":"I","heading":"Inspection and cover plates.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032","part":"56","subchapter":"K","subpart":"K","id":"56.12032","citation":"30 CFR 56.12032","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":"4104857","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}