{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"3101104","name":"Lemon Springs Quarry","status":"Active","status_date":"2007-10-10","mine_type":"Surface","coal_metal":"M","commodity":"Crushed, Broken Granite","state":"NC","county":"Lee","nearest_town":"Lemon Springs","operator_id":"L16197","operator_name":"Martin Marietta Materials Inc","controller_id":"M00174","controller_name":"Martin Marietta Materials Inc","district":"C05","office":"Sanford NC Field Office","employees":28,"latitude":35.408888,"longitude":-79.210833},"coverage":{"contributingSources":15,"registeredSources":20,"sourceRows":3697},"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":"3101104","name":"Lemon Springs Quarry"},"operator":{"type":"operator","id":"L16197","name":"Martin Marietta Materials Inc"},"controller":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00208","name":"Martin Marietta Aggregates"},"object":{"type":"mine","id":"3101104","name":"Lemon Springs Quarry"},"validFrom":"1950-01-01","validTo":"2003-06-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3101104|L00208|1950-01-01|2003-06-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"3101104","name":"Lemon Springs Quarry"},"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":"3101104|M00174|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L00208","name":"Martin Marietta Aggregates"},"validFrom":"1950-01-01","validTo":"2003-06-08","current":false,"derived":true,"evidenceMineId":"3101104","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3101104|L00208|1950-01-01|M00174|1950-01-01|106138"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16197","name":"Martin Marietta Materials Inc"},"object":{"type":"mine","id":"3101104","name":"Lemon Springs Quarry"},"validFrom":"2003-06-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3101104|L16197|2003-06-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00174","name":"Martin Marietta Materials Inc"},"object":{"type":"operator","id":"L16197","name":"Martin Marietta Materials Inc"},"validFrom":"2003-06-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"3101104","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3101104|L16197|2003-06-09|M00174|1950-01-01|106139"}}],"coverage":{"historyRecords":2,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":17,"firstDate":"2000-04-25","lastDate":"2025-02-27","metrics":{"daysLost":996,"injuries":15,"fatalities":0,"recentRows":1,"restrictedDays":465,"contractorRecords":5},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"40989","DOCUMENT_NO":"220250690023","ACCIDENT_DT":"02/27/2025","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"OTHER","ACCIDENT_TYPE":"Struck by flying object","OCCUPATION":"Welder (shop)","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Night shift EE decided to retrieve EE's RC car from the employee parking area. The EE retrieved the RC car, placed it in the company truck, and stopped by the granite sand pile. EE began operating the RC car and during this process, EE lost control of the RC car and it jumped off the ramp at approximately 20 mph and struck the EE in the face, causing a laceration on EE's chin.","sourceDate":"2025-02-27"},{"SOURCE_ROW_NUMBER":"49626","DOCUMENT_NO":"220162850016","ACCIDENT_DT":"09/08/2016","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck against a moving object","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"A Volvo A40G off road 6x6 truck made contact with a Komatsu PC360 excavator while approaching from the blindside of the excavator. This incident was investigated by Mine Safety and Health Inspector on 09/12/2016. The complaint ID is 966940. We were notified on 10/03/2016 that the operator of the Volvo 6x6 truck had filed a claim of injury.","sourceDate":"2016-09-08"},{"SOURCE_ROW_NUMBER":"10942","DOCUMENT_NO":"220131690027","ACCIDENT_DT":"06/10/2013","DEGREE_INJURY":"DAYS RESTRICTED ACTIVITY ONLY","CLASSIFICATION":"OTHER","ACCIDENT_TYPE":"Absorption of radiations, caustics, toxic and noxious substances","OCCUPATION":"Outside foreman, Leadman","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Employee was moving some chains and was apparently bitten by an insect.  Area became inflamed and he was seen by a physician on 6/12.","sourceDate":"2013-06-10"},{"SOURCE_ROW_NUMBER":"225957","DOCUMENT_NO":"220120230076","ACCIDENT_DT":"05/11/2011","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in pulling or pushing objects","OCCUPATION":"Drill operator","NO_INJURIES":"1","DAYS_LOST":"63","NARRATIVE":"Employee pulled some electrical cable by hand to move it from one area to another and felt numbness and tingling in his left elbow and fingers.","sourceDate":"2011-05-11"},{"SOURCE_ROW_NUMBER":"105275","DOCUMENT_NO":"220111610055","ACCIDENT_DT":"03/23/2011","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in pulling or pushing objects","OCCUPATION":"Haul/Off road/Coal/Ore/Pit/Quarry/Rock/Rubber tire truck driver, Transportation truck driver","NO_INJURIES":"1","DAYS_LOST":"762","NARRATIVE":"Employee was pulling a piece of wire from in front of the haul truck he was preparing to operate. He felt a pain in his lower back and went to the clinic where he was diagnosed with a mild back sprain. He returned to his regular job as truck driver. His condition improved until 06/06/2011 when it unexpectedly got worse and the doctor put him out of work.","sourceDate":"2011-03-23"},{"SOURCE_ROW_NUMBER":"208771","DOCUMENT_NO":"220091980047","ACCIDENT_DT":"07/15/2009","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Employee was cutting a piece of conveyor belt to make a patch. The utility knife slipped while he was pulling towards himself and struck the right leg just above the knee, inflicting a gash about one and one half inches. Required several stitches to close.","sourceDate":"2009-07-15"},{"SOURCE_ROW_NUMBER":"230312","DOCUMENT_NO":"220081200014","ACCIDENT_DT":"04/19/2008","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"A brush and grass fire was observed on mine property and was called in to the emergency dispatcher. The Lemon Springs Fire Department was dispatched and was on scene in 17 minutes. The fire was controlled and the responding units left in one hour and 46 minutes. The fire was immediatly reported to MSHA. The cause of the fire was not determined.","sourceDate":"2008-04-19"},{"SOURCE_ROW_NUMBER":"109602","DOCUMENT_NO":"220071590038","ACCIDENT_DT":"05/29/2007","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Caught in, under or between a moving and a stationary object","OCCUPATION":"Haul/Off road/Coal/Ore/Pit/Quarry/Rock/Rubber tire truck driver, Transportation truck driver","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"EE had his finger mashed in the door of the haul truck cab. He was pulling the CB cable that was dragging inside the cab. Another EE was training on the truck. He got out of the cab & pulled slack out of the CB cable line. Injured was trying to hold the cable out of the way while the door was shut. Injured thought he was OK & told other EE to shut the door. Finger was fractured.","sourceDate":"2007-05-29"},{"SOURCE_ROW_NUMBER":"260500","DOCUMENT_NO":"220071990028","ACCIDENT_DT":"05/15/2007","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in lifting objects","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","DAYS_LOST":"128","NARRATIVE":"Ee was lifting screens to the top of the screen deck and felt an onset of back pain. He thought it was pulled muscle but when it didnt get better he went to the dr. and after it did nfot improve, an mri was done showing a herniated disc. because his contition did not improve any the dr. took him out of work on 7/16/07.","sourceDate":"2007-05-15"},{"SOURCE_ROW_NUMBER":"19487","DOCUMENT_NO":"220070600040","ACCIDENT_DT":"02/23/2007","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Pumper","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Employee was holding a side panel of polyurethane screen deck on his right knee and trimming it with a utility knife when the knife slipped and cut his leg. The resulting laceration required four stitches to close. Medical only, no lost time.","sourceDate":"2007-02-23"},{"SOURCE_ROW_NUMBER":"234604","DOCUMENT_NO":"220050940092","ACCIDENT_DT":"03/23/2005","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FIRE","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"A screen fire was started during construction of the new secondary plant. Belt 26 was started & it was rubbing on the structure, so EE trimmed a small piece of metal with a torch. Some of the slag fell to the screen deck below & started a fire on the rubber screen deck. The fire was extinguished in about 45 minutes. No injuries.","sourceDate":"2005-03-23"},{"SOURCE_ROW_NUMBER":"66755","DOCUMENT_NO":"220050890036","ACCIDENT_DT":"03/23/2005","DEGREE_INJURY":"DYS AWY FRM WRK & RESTRCTD ACT","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Struck by falling object","OCCUPATION":"Laborer, Blacksmith, Bull gang, Parts runner, Roustabout, Pick-up man, Pitman","NO_INJURIES":"1","DAYS_LOST":"14","NARRATIVE":"While changing jaw dies on the jaw crusher, Employee was getting set up to trim an old die to fit the rock box between the feeder & the jaw. While moving this die that weighed approx.1000#, the lifting chain came unhooked alowing the die to fall over the work platform. As it fell it struck EE's rt. leg scraping the skin. 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