Incidents Occurring in 2009 but Determined in 2012
 
 
| Date of Incident | 
Mine Name | 
Operating Company | 
Determination | 
Report | 
|  August 31, 2009 | 
 Cresson Project | 
 Anglogold Ashanti (Colorado) Corp. | 
 Natural | 
  | 
 
  Incidents Occurring in 2010 but Determined in 2012
 
 
| Date of Incident | 
Mine Name | 
Operating Company | 
Determination | 
Report | 
|  August 31, 2009 | 
   West Coast Aggregate | 
 West Coast Aggregate Supply, Inc. | 
 Natural | 
  | 
 
 
 
 
 
  Incidents Occurring in 2011 but Determined in 2012
 
| Date of Incident | 
Mine Name | 
Operating Company | 
Determination | 
Report | 
|  January 3, 2011 | 
 Black Mountain Quarry | 
 CEMEX Construction Materials Pacific, LLC | 
 Natural Causes | 
  | 
|  January 14, 2011 | 
  Thornton Quarry | 
 Hanson Material Service | 
 Tresspassing | 
  | 
|  January 18, 2011 | 
  Kensington | 
 Coeur Alaska, Inc. | 
 Natural Causes | 
  | 
 
|  February 13, 2011 | 
 King William | 
 Nestle Purina Pet Care | 
 Other | 
  | 
|  February 17, 2011 | 
 South Flint Gravel, Inc. | 
 South Flint Gravel, Inc. | 
 Natural Causes | 
  | 
|  March 19, 2011 | 
 Landmark Plant | 
 Cheney Lime & Cement Company | 
 Suicide | 
  | 
|  March 22, 2011 | 
 Main Processing Plant | 
 Thiele Kaolin Company | 
 Natural Causes | 
  | 
|  April 6, 2011 | 
 Barrick Cortez Underground | 
 Cortez Joint Venture | 
 Natural Causes | 
  | 
|  April 13, 2011 | 
 Bradshaw Pit | 
 Granite Construction Company | 
 Trespassing | 
  | 
|  May 6, 2011 | 
 PCP #3 | 
  Hallett Materials, Inc. | 
 Natural Causes | 
  | 
 
|  May 25, 2011 | 
 Portable Plant No. 1 | 
 Meverden Material, Inc. | 
 Natural Causes | 
  | 
|  June 9, 2011 | 
 Riverside Stone Mine | 
 Yager Materials, LLC. | 
 Natural Causes | 
  | 
|  June 11, 2011 | 
 Hicone Quarry | 
 Martin Marietta Materials | 
 Suicide | 
  | 
|  June 28, 2011 | 
 Voca Mine | 
 Proppant Specialists | 
 Natural Causes | 
  | 
|  July 11, 2011 | 
 Cheokee Quarry | 
 Vulcan Construction Materials | 
 Natural Causes | 
  | 
|  July 11, 2011 | 
 CEMEX-19th Avenue Pit | 
 CEMEX Construction Material South, LLC | 
 Trespassing | 
  | 
|  July 21, 2011 | 
 Fort Pierce Mines | 
 Florida Rock Industries, Inc. | 
 Accidental | 
  | 
 
|  August 3, 2011 | 
 S C L Quarry | 
 Cemex Construction Materials of Florida, LLC | 
 Trespassing | 
  | 
|  August 11, 2011 | 
 Hookers Prairie Mine | 
 Mosaic Fertilizer, LLC | 
 Natural Causes | 
  | 
|  August 20, 2011 | 
 Little Rock Plant | 
 GEO Specialty Chemicals | 
 Natural Causes | 
  | 
|  September 13, 2011 | 
 DeQuincy Plant | 
 Southwest Graphite Company | 
 Natural Causes | 
  | 
 
 
|  September 28, 2011 | 
 Busque Quarry | 
 Busque Construction Co. | 
 Suicide | 
  | 
|  October 5, 2011 | 
 Clinchfield Plant CEMEX, Inc. | 
 CEMEX Southeast, LLC. | 
 Natural Causes | 
  | 
|  October 5, 2011 | 
 Lehigh Permanente Quarry | 
 Lehigh Southwest Cement | 
 Homicide | 
  | 
|  October 5, 2011 | 
 Lehigh Permanente Quarry | 
 Lehigh Southwest Cement | 
 Homicide | 
  | 
|  October 5, 2011 | 
 Lehigh Permanente Quarry | 
 Lehigh Southwest Cement | 
 Homicide | 
  | 
|  October 19, 2011 | 
 Onlelaunee Quarry | 
  Berks Product Corp. | 
 Trespassing | 
  | 
 
|  November 11, 2011 | 
 Boone Quarries-East | 
 Con-Agg of MO, LLC | 
 Trespassing | 
  | 
 
 
|  November 15, 2011 | 
 Two Rivers Sand & Gravel Pit | 
 Two Rivers Sand & Gravel, Inc. | 
 Natural Causes | 
  | 
|  November 15, 2011 | 
 Tata Chemicals Mill | 
 Tata Chemicals (Soda Ash) Partners | 
 Natural Causes | 
  | 
|  November 28, 2011 | 
 Beck Street South  | 
  Staker & Parson Companies | 
 Natural Causes | 
  | 
|  November 29, 2011 | 
 Lithonia/Pine Mountain Quarry | 
 Hanson Aggregates Southeast, LLC | 
 Natural Causes | 
  | 
 
 Incidents Occurring and Determined in 2012
 
 
| Date of Incident | 
Mine Name | 
Operating Company | 
Determination | 
Report | 
 
 
  
|  February 2, 2012 | 
 Linwood Mine | 
 Linwood Mining and Minerals Corporation | 
 Natural Causes | 
  | 
 
|  February 15, 2012 | 
 Sherwin Alumina, L.P. | 
 Sherwin Alumina Company, LLC | 
 Natural Causes | 
  | 
|  April 24, 2012 | 
 Sunflower Quarry | 
 Hunt Martin Materials, LLC | 
 Homicide | 
  | 
|  May 16, 2012 | 
 Butler Pit | 
 Concrete Nor'West | 
 Trespassing | 
  | 
 
|  June 11, 2012 | 
 Red Bluff Pit | 
 Red Bluff Sand & Gravel, LLC | 
 Natural Causes | 
  |