{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"0203375","name":"Kerley Pit","status":"Abandoned","status_date":"2023-05-03","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"AZ","county":"Pima","nearest_town":"Sahuarita","operator_id":"L00039","operator_name":"Granite Construction Company","controller_id":"M00079","controller_name":"Granite Construction Inc","district":"C09","office":"Mesa South AZ Field Office","employees":0,"latitude":31.919167,"longitude":-111.015},"coverage":{"contributingSources":10,"registeredSources":20,"sourceRows":108},"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":"0203375","name":"Kerley Pit"},"operator":{"type":"operator","id":"L00039","name":"Granite Construction Company"},"controller":{"type":"controller","id":"M00079","name":"Granite Construction Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00079","name":"Granite Construction Inc"},"object":{"type":"mine","id":"0203375","name":"Kerley Pit"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203375|M00079|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00039","name":"Granite Construction Company"},"object":{"type":"mine","id":"0203375","name":"Kerley Pit"},"validFrom":"2017-02-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203375|L00039|2017-02-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00079","name":"Granite Construction Inc"},"object":{"type":"operator","id":"L00039","name":"Granite Construction Company"},"validFrom":"2017-02-21","validTo":null,"current":true,"derived":true,"evidenceMineId":"0203375","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203375|L00039|2017-02-21|M00079|1950-01-01|103572"}}],"coverage":{"historyRecords":1,"edgeCount":3,"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":"2023-05-03","lastDate":"2023-05-03","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":"2017-05-31","lastDate":"2017-05-31","metrics":{"ss":0,"delinquent":1,"recentRows":0,"paidPenalty":116,"proposedPenalty":116,"currentAssessment":116},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2901363","VIOLATION_NO":"9303044","ISSUE_DT":"05/31/2017","CFR_STANDARD_CD":"56.14100(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-05-31"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":58,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-yearly","name":"Contractor Employment and Production — Yearly","domains":["contractors","production","safety"],"products":["long-run contractor trend","annual denominator reconciliation"],"rowCount":17,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"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":1,"firstDate":"2017-02-21","lastDate":"2017-02-21","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":6,"firstDate":"2017-05-31","lastDate":"2020-11-18","metrics":{"inspectors":6,"recentRows":0,"onSiteHours":17,"inspectionHours":45.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"168921","EVENT_NO":"6786769","INSPECTION_BEGIN_DT":"11/18/2020","INSPECTION_END_DT":"11/18/2020","ACTIVITY_CODE":"E17","ACTIVITY":"Special Emphasis Programs","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"1","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2020-11-18"},{"SOURCE_ROW_NUMBER":"717626","EVENT_NO":"6784580","INSPECTION_BEGIN_DT":"03/25/2020","INSPECTION_END_DT":"03/25/2020","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2020-03-25"},{"SOURCE_ROW_NUMBER":"996501","EVENT_NO":"6786109","INSPECTION_BEGIN_DT":"01/31/2019","INSPECTION_END_DT":"01/31/2019","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.5","SUM_TOTAL_ON_SITE_HOURS":"7","sourceDate":"2019-01-31"},{"SOURCE_ROW_NUMBER":"105491","EVENT_NO":"6694872","INSPECTION_BEGIN_DT":"04/19/2018","INSPECTION_END_DT":"04/19/2018","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10.5","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2018-04-19"},{"SOURCE_ROW_NUMBER":"729843","EVENT_NO":"8590780","INSPECTION_BEGIN_DT":"07/13/2017","INSPECTION_END_DT":"07/13/2017","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2017-07-13"},{"SOURCE_ROW_NUMBER":"938386","EVENT_NO":"8590773","INSPECTION_BEGIN_DT":"05/31/2017","INSPECTION_END_DT":"05/31/2017","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9.5","SUM_TOTAL_ON_SITE_HOURS":"3","sourceDate":"2017-05-31"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":17,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2021-Q1":{"hours":60,"employees":2,"production":0},"2020-Q4":{"hours":60,"employees":2,"production":0},"2020-Q3":{"hours":60,"employees":2,"production":0},"2020-Q2":{"hours":60,"employees":2,"production":0},"2020-Q1":{"hours":60,"employees":2,"production":0},"2019-Q4":{"hours":60,"employees":2,"production":0},"2019-Q3":{"hours":60,"employees":2,"production":0},"2019-Q2":{"hours":60,"employees":2,"production":0},"2019-Q1":{"hours":90,"employees":2,"production":0},"2018-Q4":{"hours":90,"employees":2,"production":0},"2018-Q3":{"hours":90,"employees":2,"production":0},"2018-Q2":{"hours":90,"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":5,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2017":{"hours":360,"employees":2,"production":0},"2018":{"hours":360,"employees":2,"production":0},"2019":{"hours":270,"employees":2,"production":0},"2020":{"hours":240,"employees":2,"production":0},"2021":{"hours":60,"employees":2,"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":"2017-05-31","lastDate":"2017-05-31","metrics":{"ss":0,"amountDue":116,"contested":0,"amountPaid":116,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":116},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"160789","VIOLATION_NO":"9303044","VIOLATION_ISSUE_DT":"05/31/2017","SIG_SUB":"N","PART_SECTION":"56.14100(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"07/13/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-05-31"}]}],"safety":{"href":"/api/v1/mines/0203375/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0203375/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":"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":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"0203375","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}