View Report,Materials Page,NRC Report #,Type of Call,Date/Time Received,Description Of Incident,Type Of Incident,Incident Cause,Incident Date/Time,Location,State,Nearest City,County,Suspected Responsible Company,Medium Affected,Material Name
986348,986348,986348,INCIDENT,8/18/2011 5:08,A BACKUP OF A TAILINGS LINE RESULTED IN A RELEASE OF TAILINGS INTO A DRY WASH.,FIXED,EQUIPMENT FAILURE,8/17/2011 18:45,4201 W. PIMA MINE ROAD,AZ,SAHUARITA,PIMA,ASARCO,LAND,LEAD SULFIDE
983252,983252,983252,INCIDENT,7/20/2011 11:49,CALLER STATED THAT THERE WAS A RELEASE OF AN UNKNOWN AMOUNT OF SULFURIC ACID FROM A PIPELINE DUE TO UNKNOWN CAUSES..,PIPELINE,UNKNOWN,7/20/2011 6:48,NONE HW 177 MILEPOST 153,AZ,KERNEY,PINAL,ASARCO INC,LAND,SULFURIC ACID
980447,980447,980447,INCIDENT,6/22/2011 15:13,CALLER IS REPORTING A DISCHARGE OF SCRUBBER BLOW DOWN WATER (CONTAINING 4.75 POUNDS OF ARSENIC TRIOXIDE) FROM THE GAS COOLING TOWERS AT THE ACID PLANT DUE TO A BROKEN PIPE.,FIXED,EQUIPMENT FAILURE,6/21/2011 20:40,640 ASARCO AVENUE,AZ,HAYDEN,GILA,ASARCO,LAND,SCRUBBER BLOW DOWN WATER
980447,980447,980447,INCIDENT,6/22/2011 15:13,CALLER IS REPORTING A DISCHARGE OF SCRUBBER BLOW DOWN WATER (CONTAINING 4.75 POUNDS OF ARSENIC TRIOXIDE) FROM THE GAS COOLING TOWERS AT THE ACID PLANT DUE TO A BROKEN PIPE.,FIXED,EQUIPMENT FAILURE,6/21/2011 20:40,640 ASARCO AVENUE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC TRIOXIDE
975013,975013,975013,INCIDENT,5/5/2011 21:45,CALLER IS REPORTING THAT 6000-8000 TONS OF COPPER ORE TAILING RELEASED FROM ONE OF THE TAILING PONDS DUE TO A BREACH IN THE DIKE.,FIXED,OTHER,5/5/2011 15:00,***SEC/TOWN/SHIP ARE APPROXIMATE***,AZ,HAYDEN,GILA,ASARCO,LAND,COPPER ORE TAILING
942625,942625,942625,INCIDENT,6/3/2010 2:49,CALLER IS REPORTING THAT SULFURIC ACID RELEASED FROM AN ONSITE PROCESS SOLUTION PIPELINE DUE TO A LINE RUPTURE. AS A RESULT THE MATERIAL RELEASED INTO STORM WATER COLLECTION POND.,PIPELINE,EQUIPMENT FAILURE,6/2/2010 20:12,*** SEE SEC/TOWN/RANGE***,AZ,MARANA,PIMA,ASARCO-SILVER BELL MINING,WATER,SULFURIC ACID
942155,942155,942155,INCIDENT,5/29/2010 20:43,CALLER IS REPORTING A BROKEN LINE ON PUMP THAT LEADS TO A STORAGE TANK ON THE FACILITY CAUSING A RELEASE OF MATERIAL TO THE SOIL.,FIXED,EQUIPMENT FAILURE,5/29/2010 13:30,ACID PLANT HAYDEN AVE,AZ,HAYDEN,GILA,ASARCO,LAND,SCRUBBER BLOW DOWN SLURRY
942155,942155,942155,INCIDENT,5/29/2010 20:43,CALLER IS REPORTING A BROKEN LINE ON PUMP THAT LEADS TO A STORAGE TANK ON THE FACILITY CAUSING A RELEASE OF MATERIAL TO THE SOIL.,FIXED,EQUIPMENT FAILURE,5/29/2010 13:30,ACID PLANT HAYDEN AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
918089,918089,918089,INCIDENT,9/17/2009 16:11,CALLER STATED THAT MINERAL ORE TAILINGS CONTAINING LEAD SULFIDE WERE DISCOVERED DURING A NORMAL ROUND.,FIXED,EQUIPMENT FAILURE,9/17/2009 8:00,100 HAYDEN AVE,AZ,HAYDEN,GILA,ASARCO,LAND,LEAD SULFIDE
886809,886809,886809,INCIDENT,10/10/2008 21:46,CALLER IS REPORTING A RELEASE OF HYDRAULIC OIL FROM A DRILL AT A MINE SITE DUE TO A FAILURE OF A LINE OR FITTING. THE RELEASE  WENT ONTO THE GROUND.,FIXED,EQUIPMENT FAILURE,10/10/2008 9:00,25000 WEST EZRAVALLEY ROAD AT THE PORTLAND SITE,AZ,MARANA,PIMA,ASARCO SILVER BELL MINE,LAND,HYDRAULIC OIL
880961,880961,880961,INCIDENT,8/18/2008 9:15,"A PROCESS LINE RUPTURED, RESULTING IN A DISCHARGE OF A PRODUCT NAMED ""STRIPPER BLOWDOWN"".",FIXED,EQUIPMENT FAILURE,8/18/2008 5:00,640 ASARCO AVENUE,AZ,HAYDEN,GILA,ASARCO,SOIL,ARSENIC
878596,878596,878596,INCIDENT,7/27/2008 7:02,CALLER IS REPORTING A RELEASE OF LEAD COMPOUND FROM ITS CONTAINMENT ON THE FACILITY DUE TO EQUIPMENT FAILURE OF THE CONTAINMENT. CALLER STATES THAT GREATER THAN TEN POUNDS HAS RELEASED. THE MATERIAL IS FULLY CONTAINED ON THE FACILITY.,FIXED,EQUIPMENT FAILURE,7/27/2008 3:00,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,SOIL,LEAD COMPOUND
841357,841357,841357,INCIDENT,7/8/2007 15:00,CALLER IS REPORTING A DISCHARGE OF SULFURIC ACID ONTO THE GROUND.  WHILE IN THE PROCESS OF LOADING A RAILCAR THE SPILL OCCURRED. THE CAUSE IS UNKNOWN WHY THE ACID SPILLED.,FIXED,UNKNOWN,7/8/2007 12:01,HWY 177,AZ,HAYDEN,GILA,ASARCO,LAND,SULFURIC ACID
832704,832704,832704,INCIDENT,4/19/2007 0:02,ARSENIC HAS RELEASED ONTO THE SOIL FROM A FURNACE VENT DURING HIGH WINDS.,FIXED,EQUIPMENT FAILURE,4/18/2007 16:30,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
828762,828762,828762,INCIDENT,3/10/2007 11:14,"CALLER REPORTED A LINE RUNNING TO A SOLVENT TANK RUPTURED DUE TO UNKNOWN CAUSES, SPILLING SULFURIC ACID TO THE GROUND.",FIXED,EQUIPMENT FAILURE,3/10/2007 7:45,"8 MILES NORTH OF KERNEY, AZ HWY 177",AZ,KERNEY,PINAL,ASARCO,LAND,SULFURIC ACID
826624,826624,826624,INCIDENT,2/15/2007 16:57,CALLER STATED THAT SULFURIC ACID GREATER THAN 1000 POUNDS DISCHARGED FROM A PIPELINE THROUGH THE PLANT ONTO THE GROUND.,FIXED,EQUIPMENT FAILURE,2/15/2007 13:30,8 MILES NORTHWEST OFF OF HWY 177,AZ,KEARNY,PINAL,ASARCO,LAND,SULFURIC ACID
824774,824774,824774,INCIDENT,1/26/2007 19:17,CALLER STATED THERE WAS A RELEASE OF MATERIALS FROM AN OVERFLOW TANK DUE TO A CONTAINMENT FAILURE.,STORAGE TANK,EQUIPMENT FAILURE,1/26/2007 13:45,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,SOIL,ARSENIC
820456,820456,820456,INCIDENT,12/9/2006 12:17,"CALLER REPORTS A DISCHARGE OF 8000 POUNDS OF SULFURIC ACID FROM AN EARTHEN SECONDARY CONTAINMENT BURM TO SOIL.  THERE WAS A DRAIN PIPE IN THE EARTHEN SECONDARY CONTAINMENT  WHICH WAS SECURED TO STOP LEAKING, BUT HAS SINCE FAILED, ALLOWING THE 8000 POUNDS OF SULFURIC ACID TO DISCHARGE TO A DIRT AREA AND ROAD AROUND THE CONTAINMENT.  CALLER REPORTS THE MATERIAL WAS MADE UP OF 93% SULFURIC ACID AND REACHED A REMOTE, 10 SQAURE MILE RADIUS OF PROPERTY, WITH NO COMMUNITY IMPACTS.",STORAGE TANK,EQUIPMENT FAILURE,12/9/2006 7:30,ASARCO RAY OPERATIONS 8 MILES NORTH OF KEARNY ARIZONA ON ARIZONA STATE HIGHWAY 177 PO BOX 8,AZ,HAYDEN,PINAL,ASARCO,SOIL,SULFURIC ACID
820398,820398,820398,INCIDENT,12/8/2006 16:01,CALLER IS REPORTING A DISCHARGE OF SULFURIC ACID FROM A STORAGE TANK DUE TO FAILURE OF THE PIPING SYSTEM.,STORAGE TANK,EQUIPMENT FAILURE,12/8/2006 3:49,ASARCO RAY OPERATIONS ON AZ HWY 177,AZ,KEARNY,PINAL,ASARCO,OTHER,SULFURIC ACID
815407,815407,815407,INCIDENT,10/19/2006 16:22,THE CALLER REPORTS THAT DURING THE REPAIR OF A 24 INCH PIPELINE THE LINE DISCONNECTED AND RELEASED MATERIAL TO THE GROUND.,FIXED,EQUIPMENT FAILURE,10/19/2006 8:20,25000 WEST AVRA VALLEY RD,AZ,MARANA,PIMA,ASARCO-SILVER BELL MINING,SOIL,RAFFINATE: MIXTURE OF 5.5 GRAMS PER LITER OF SULFURIC ACID AND VARIOUS METALS
808478,808478,808478,INCIDENT,8/20/2006 18:43,CALLER STATED THAT THERE WAS A RELEASE OF SULFURIC ACID DUE TO A PIPE FAILURE INSIDE OF THE MINE.,FIXED,EQUIPMENT FAILURE,8/19/2006 20:00,INSIDE A MINE HWY 177,AZ,KEARNY,PINAL,ASARCO INC,SUBSURFACE,SULFURIC ACID
808197,808197,808197,INCIDENT,8/17/2006 19:00,REPORTING A RELEASE OF MATERIALS ONTO THE GROUND AND INTO SECONDARY CONTAINMENT FROM A STORAGE TANK DUE TO EQUIPMENT FAILURE.,STORAGE TANK,EQUIPMENT FAILURE,8/17/2006 5:00,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARCINIC
789822,789822,789822,INCIDENT,3/3/2006 19:03,LEAD SPILLED ONTO THE SOIL FROM A LEAKING VACUUM TRUCK.,MOBILE,EQUIPMENT FAILURE,3/3/2006 15:00,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,LEAD
789113,789113,789113,INCIDENT,2/24/2006 21:35,SULFURIC ACID SPILLED ONTO THE SOIL FROM AN OVERFILLED STORAGE TANK.,STORAGE TANK,EQUIPMENT FAILURE,2/24/2006 16:30,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,SULFURIC ACID
785200,785200,785200,INCIDENT,1/14/2006 15:14,AN OPERATOR LEFT A VALVE OPEN ON A CSO TANK CAUSING A RELEASE OF 4000 GALLONS OF PROCESS SOLUTION INTO A PRIMARY AND SECONDARY CONTAINMENT AND 4.09 POUNDS OF ARSENIC CONTAINED IN THE SOLUTION.,STORAGE TANK,OPERATOR ERROR,1/14/2006 8:30,640 ASARCO AVENUE,AZ,HAYDEN,GILA,ASARCO,OTHER,ARSENIC
785200,785200,785200,INCIDENT,1/14/2006 15:14,AN OPERATOR LEFT A VALVE OPEN ON A CSO TANK CAUSING A RELEASE OF 4000 GALLONS OF PROCESS SOLUTION INTO A PRIMARY AND SECONDARY CONTAINMENT AND 4.09 POUNDS OF ARSENIC CONTAINED IN THE SOLUTION.,STORAGE TANK,OPERATOR ERROR,1/14/2006 8:30,640 ASARCO AVENUE,AZ,HAYDEN,GILA,ASARCO,OTHER,PROCESS SOLUTION
762840,762840,762840,INCIDENT,6/20/2005 16:27,"REPORTING A MATERIAL RELEASE DISCOVERY FROM AN UNKNOWN SOURCE INVOLVING ""CHEMICALS RUNNING DOWN THE STREET AND PEOPLE ARE BEING TOLD TO GET OUT OF THEIR HOUSES"".",FIXED,UNKNOWN,6/20/2005 13:26,ASARCO (COOPER MINE),AZ,HAYDEN,GILA,ASARCO,LAND,UNKNOWN MATERIAL
763269,763269,763269,INCIDENT,6/24/2005 11:36,"CALLER STATED THERE WAS A RELEASE OF MATERIALS FROM A 24"" CONCRETE STEEL LINED PIPELINE (100 PSI GUAGE). WASTE FLOW LINE 15 FEET UNDERGROUND RELEASED ONTO A CHILDREN'S PLAYGROUND DUE TO EQUIPMENT FAILURE.",PIPELINE,EQUIPMENT FAILURE,6/20/2005 13:00,INTERSECTION OF VELASCO AVE & HAYDEN ROAD,AZ,HAYDEN,PINAL,ASARCO,LAND,LEAD SULFIDE
762863,762863,762863,INCIDENT,6/20/2005 19:11,CALLER STATED THERE WAS A RELEASE OF MATERIALS FROM A 30 INCH PIPELINE DUE TO A HOLE.,PIPELINE,EQUIPMENT FAILURE,6/20/2005 12:15,ALASCO AVENUE,AZ,HAYDEN PARK,GILA,ASARCO,LAND,LEAD COMPOUND
762863,762863,762863,INCIDENT,6/20/2005 19:11,CALLER STATED THERE WAS A RELEASE OF MATERIALS FROM A 30 INCH PIPELINE DUE TO A HOLE.,PIPELINE,EQUIPMENT FAILURE,6/20/2005 12:15,ALASCO AVENUE,AZ,HAYDEN PARK,GILA,ASARCO,LAND,PAILINGS
762863,762863,762863,INCIDENT,6/20/2005 19:11,CALLER STATED THERE WAS A RELEASE OF MATERIALS FROM A 30 INCH PIPELINE DUE TO A HOLE.,PIPELINE,EQUIPMENT FAILURE,6/20/2005 12:15,ALASCO AVENUE,AZ,HAYDEN PARK,GILA,ASARCO,LAND,ARSENIC
750895,750895,750895,INCIDENT,2/23/2005 17:14,DIESEL RELEASED FROM THE FUEL TANK OF A HAUL TRUCK DUE TO OPERATOR FAILED TO DISCONNECT THE FUEL HOSE.,MOBILE,UNKNOWN,2/22/2005 16:00,THE RAY MINE ON HWY 177,AZ,SUPERIOR,PINAL,ASARCO INC,SOIL,OIL: DIESEL
727869,727869,727869,INCIDENT,7/10/2004 16:37,THE MATERIAL RELEASED FROM A TAILING PIPELINE DUE TO A PIPLINE BREAK,PIPELINE,EQUIPMENT FAILURE,7/10/2004 9:30,KENNECOTT AVE AND HWY 177 100 HAYDEN AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
727869,727869,727869,INCIDENT,7/10/2004 16:37,THE MATERIAL RELEASED FROM A TAILING PIPELINE DUE TO A PIPLINE BREAK,PIPELINE,EQUIPMENT FAILURE,7/10/2004 9:30,KENNECOTT AVE AND HWY 177 100 HAYDEN AVE,AZ,HAYDEN,GILA,ASARCO,LAND,LEAD ARSENATE
727869,727869,727869,INCIDENT,7/10/2004 16:37,THE MATERIAL RELEASED FROM A TAILING PIPELINE DUE TO A PIPLINE BREAK,PIPELINE,EQUIPMENT FAILURE,7/10/2004 9:30,KENNECOTT AVE AND HWY 177 100 HAYDEN AVE,AZ,HAYDEN,GILA,ASARCO,LAND,CADMIUM
727869,727869,727869,INCIDENT,7/10/2004 16:37,THE MATERIAL RELEASED FROM A TAILING PIPELINE DUE TO A PIPLINE BREAK,PIPELINE,EQUIPMENT FAILURE,7/10/2004 9:30,KENNECOTT AVE AND HWY 177 100 HAYDEN AVE,AZ,HAYDEN,GILA,ASARCO,LAND,COPPER ORE TAILINGS
705928,705928,705928,INCIDENT,11/20/2003 18:43,MATERIAL RELEASED FROM A STORAGE TANK (STONE CONE SETTLER OVERFLOW) DUE TO AN OPEN DOOR WHERE CLEANING MAINTENANCE WAS BEING DONE.,STORAGE TANK,OPERATOR ERROR,11/20/2003 12:30,640 ASARCO AVE.,AZ,HAYDEN,GILA,ASARCO,LAND,LEAD
705928,705928,705928,INCIDENT,11/20/2003 18:43,MATERIAL RELEASED FROM A STORAGE TANK (STONE CONE SETTLER OVERFLOW) DUE TO AN OPEN DOOR WHERE CLEANING MAINTENANCE WAS BEING DONE.,STORAGE TANK,OPERATOR ERROR,11/20/2003 12:30,640 ASARCO AVE.,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
705928,705928,705928,INCIDENT,11/20/2003 18:43,MATERIAL RELEASED FROM A STORAGE TANK (STONE CONE SETTLER OVERFLOW) DUE TO AN OPEN DOOR WHERE CLEANING MAINTENANCE WAS BEING DONE.,STORAGE TANK,OPERATOR ERROR,11/20/2003 12:30,640 ASARCO AVE.,AZ,HAYDEN,GILA,ASARCO,LAND,CADMIUM
702824,702824,702824,INCIDENT,10/17/2003 15:09,"CALLER STATED THAT THERE ARE SECONDARY MATERIALS IN A CONCRETE BUNKER WHICH LEAKED OUT, RELEASING ONTO THE GROUND AND INTO A PIT (CONTAINMENT AREA).",FIXED,EQUIPMENT FAILURE,10/16/2003 19:00,"HAYDEN SMELTER (AT THE SOUTHWEST CORNER OF BEDDING AREA, NEAR ENTRANCE) 640 ASARCO AVENUE",AZ,HAYDEN,GILA,ASARCO,LAND,LEAD IN SOLUTION
702824,702824,702824,INCIDENT,10/17/2003 15:09,"CALLER STATED THAT THERE ARE SECONDARY MATERIALS IN A CONCRETE BUNKER WHICH LEAKED OUT, RELEASING ONTO THE GROUND AND INTO A PIT (CONTAINMENT AREA).",FIXED,EQUIPMENT FAILURE,10/16/2003 19:00,"HAYDEN SMELTER (AT THE SOUTHWEST CORNER OF BEDDING AREA, NEAR ENTRANCE) 640 ASARCO AVENUE",AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
640151,640151,640151,INCIDENT,3/21/2003 15:26,MATERIAL RELEASED FROM TAILINGS IMPOUNDMENT DUE TO A SEEP THROUGH THE BACK OF THE TAILINGS IMPOUNDMENT.,FIXED,OTHER,3/20/2003 10:00,RAY MINE,AZ,RIVERSIDE,PINAL,ASARCO INC,WATER,TAILINGS WATER
630005,630005,630005,INCIDENT,11/23/2002 14:50,"THE CALLER STATED THAT THERE WAS A POWER BUMP, THE PROCESS CONTROL WAS BURNED UP. THE SOLUTION POND OVERFLOWED.",FIXED,EQUIPMENT FAILURE,11/23/2002 4:10,25000 WEST AVRA VALLEY RD,AZ,MARANA,PIMA,ASARCO-SILVER BELL MINING,LAND,COPPER SULFATE (IC)
630005,630005,630005,INCIDENT,11/23/2002 14:50,"THE CALLER STATED THAT THERE WAS A POWER BUMP, THE PROCESS CONTROL WAS BURNED UP. THE SOLUTION POND OVERFLOWED.",FIXED,EQUIPMENT FAILURE,11/23/2002 4:10,25000 WEST AVRA VALLEY RD,AZ,MARANA,PIMA,ASARCO-SILVER BELL MINING,LAND,SULFURIC ACID
630005,630005,630005,INCIDENT,11/23/2002 14:50,"THE CALLER STATED THAT THERE WAS A POWER BUMP, THE PROCESS CONTROL WAS BURNED UP. THE SOLUTION POND OVERFLOWED.",FIXED,EQUIPMENT FAILURE,11/23/2002 4:10,25000 WEST AVRA VALLEY RD,AZ,MARANA,PIMA,ASARCO-SILVER BELL MINING,LAND,RAFFINATE (PROCESS SOLUTION)
627724,627724,627724,INCIDENT,10/30/2002 12:47,MATERIAL SPILLED FROM A DROP BOX AT MINE,FIXED,UNKNOWN,10/29/2002 20:30,SOUTH SIDE OF MINE 4201 WEST PIMA MINE ROAD,AZ,SAHUARTA,PIMA,ASARCO MISSION COMPLEX,LAND,"GROUND ROCK, MATERIAL LEFT OVER AFTER COPPER EXTRACTED"
623542,623542,623542,INCIDENT,9/20/2002 16:04,THE MATERIAL RELEASED FROM A FOUR INCH PIPELINE DUE TO AN EQUIPMENT FAILURE.,PIPELINE,EQUIPMENT FAILURE,9/20/2002 9:00,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
610942,610942,610942,INCIDENT,6/13/2002 18:00,THE MATERIAL RELEASED FROM A 3 INCH PIPELINE DUE TO A BREAK IN THE LINE.,PIPELINE,EQUIPMENT FAILURE,6/13/2002 8:30,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,LEAD
610942,610942,610942,INCIDENT,6/13/2002 18:00,THE MATERIAL RELEASED FROM A 3 INCH PIPELINE DUE TO A BREAK IN THE LINE.,PIPELINE,EQUIPMENT FAILURE,6/13/2002 8:30,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
599528,599528,599528,INCIDENT,4/13/2002 20:52,BLOWDOWN FAILURE OF HAYDEN SMELTER.,FIXED,EQUIPMENT FAILURE,4/13/2002 5:00,CONCENTRATE BEDDING AREA. 640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,OTHER,ARSENIC
595250,595250,595250,INCIDENT,2/28/2002 16:23,"THE MATERIAL RELEASED OUT OF THE FOUR INCH BOND STRAND FIBER PIPE, CONNECTED TO THE STORAGE TANK RUNNING TO THE RAIL CAR LOAD OUT, DUE TO A FAILED ELBOW JOINT WHICH PARTED.",FIXED,EQUIPMENT FAILURE,2/28/2002 9:00,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
565739,565739,565739,INCIDENT,5/11/2001 13:44,"A 36 INCH ""DISTRIBUTION LINE"" TAILING LINE DEVELOPED A BRAKE CAUSING A RELEASE OF MINE TAILING DOWIN THE TAILING DAM> INTO A DRY STREAM CHANNEL",PIPELINE,EQUIPMENT FAILURE,5/11/2001 8:00,4201 WEST PIMA MINE ROAD,AZ,SAHUARTA,PIMA,ASARCO MISSION COMPLEX,WATER,MINE TAILING MIXED WITH WATER
562653,562653,562653,INCIDENT,4/11/2001 17:34,THE MATERIAL WAS RELEASED FROM A FLANGE ON A ELBOW PIPELINE DUE TO A FAILED SEAL.,PIPELINE,EQUIPMENT FAILURE,4/10/2001 15:15,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC COMPOUNDS
561366,561366,561366,INCIDENT,3/31/2001 15:32,THE MATERIAL RELEASED OUT OF THE THREE INCH PROCESS PIPE LINE DUE TO ELBOW FAILURE.,FIXED,EQUIPMENT FAILURE,3/31/2001 4:45,ASARCO PLANT 640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC COMPOUNDS
559282,559282,559282,INCIDENT,3/12/2001 13:11,"THE CALLER STATED THAT DUE TO A MECHANICAL FAILURE, A RAKE DRIVE AT THE FILTER THICKENER, SPILLED MATERIAL..",FIXED,EQUIPMENT FAILURE,3/10/2001 20:30,KENNECOTT AND HAYDEN AVE.,AZ,HAYDEN,GILA,ASARCO,LAND,COPPER SULFATE (IC)
557505,557505,557505,INCIDENT,2/22/2001 11:23,WELD FAILURE ON INTERNAL TRANSFER LINE,FIXED,EQUIPMENT FAILURE,2/21/2001 14:45,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC COMPOUNDS
557505,557505,557505,INCIDENT,2/22/2001 11:23,WELD FAILURE ON INTERNAL TRANSFER LINE,FIXED,EQUIPMENT FAILURE,2/21/2001 14:45,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,LEAD COMPUNDS
557505,557505,557505,INCIDENT,2/22/2001 11:23,WELD FAILURE ON INTERNAL TRANSFER LINE,FIXED,EQUIPMENT FAILURE,2/21/2001 14:45,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,CADMIUM COMPOUNDS
557070,557070,557070,INCIDENT,2/17/2001 15:36,THE MATERIAL RELEASED OUT OF A FOUR INCH PIPE LINE THAT RUNS FROM THE STRIPPER UNIT TO THE FILTER PLANT DUE TO AN UNKNOWN LEAK.,FIXED,EQUIPMENT FAILURE,2/16/2001 19:00,ASARCO PLANT KENNECOTT AND HAYDEN AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC ACID
544839,544839,544839,INCIDENT,10/11/2000 12:54,DURING HEAVY RAIN STORMS A COLLECTION DAM OVERFLOWED AND RELEASED SOME MATERIAL INTO A LOCAL CREEK,FIXED,NATURAL PHENOMENON,10/10/2000 12:30,RAY MINE ON HWY 177,AZ,KEARNY,PINAL,ASARCO,WATER,COPPER SULFATE (IC)
522926,522926,522926,INCIDENT,3/14/2000 16:24,THE DOORS ON A RAIL HOPPER CAR MALFUNCTIONED CAUSING THE RELEASE,RAILROAD,EQUIPMENT FAILURE,3/13/2000 20:30,ASARCO RAY MINE HIGHWAY 177,AZ,KARNEY,PINAL,ASARCO,LAND,LEAD SULFIDE
509558,509558,509558,INCIDENT,12/20/1999 15:25,KO GAS REHEATER / CRACK IN BRICK LINING CAUSED CORROSION ON THE SHELL,FIXED,EQUIPMENT FAILURE,12/20/1999 7:30,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,AIR,SULFUR TRIOXIDE
442570,442570,442570,INCIDENT,6/21/1998 15:23,SATURATION TOWER/PLUGGED LINE IN TOWER/WHEN LINE WAS UNPLUGGED BYWORKERS THE MATERIAL WAS RELEASED,FIXED,OPERATOR ERROR,6/20/1998 13:00,640 ASARCO AVENUE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC ACID
427087,427087,427087,INCIDENT,3/5/1998 16:50,"""CSO"" SOLUTION LINE / A RUBBER EXPANSION JOINT FAILED CAUSING A RELEASEOF ARSENIC TO THE SOIL",FIXED,EQUIPMENT FAILURE,3/4/1998 21:30,640 ARSACO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
400813,400813,400813,INCIDENT,8/25/1997 9:39,LEACH SOLUTION DAM / UPSET DUE TO POWER OUTAGE DURING STORM,FIXED,NATURAL PHENOMENON,8/24/1997 20:30,RAY OPERATIONS (MINE),AZ,KEARNY,PINAL,ASARCO INC,WATER,COPPER SULFATE (IC)
393808,393808,393808,INCIDENT,7/3/1997 19:21,OVERCAPPING OF PROCESS POND/OPERATOR ERROR DURING STARTUP,FIXED,OPERATOR ERROR,7/3/1997 13:00,25000 WEST AVRA VALLEY RD,AZ,MARANA,PIMA,ASARCO-SILVER BELL MINING,WATER,COPPER SULFATE (IC)
326777,326777,326777,INCIDENT,2/19/1996 14:51,SOLUTION LINE/SPOOL FAILED,FIXED,OTHER,2/19/1996 9:40,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC
291234,291234,291234,INCIDENT,5/12/1995 16:17,WATER LINE//BRAKER VALVE FAILED,FIXED,EQUIPMENT FAILURE,5/7/1995 10:00,4201 WEST PIMA MINE RD 5 MILES FROM ABOVE MISSION COMPLEX PROPERTY,AZ,SAHUARITA,PIMA,ASARCO MISSION COMPLEX,LAND,COPPER SULFATE (IC) AMMINIATED
285096,285096,285096,INCIDENT,3/30/1995 19:30,GRAVITY FLOW LINE / CRACKED AT A CUPLING,FIXED,EQUIPMENT FAILURE,3/30/1995 11:30,,AZ,KERNEY,PINAL,ASARCO,WATER,COPPER SULFATE (PROCESSED WATER)
271731,271731,271731,INCIDENT,12/2/1994 13:56,EXPANSION JOINT FAILURE /PIPELINE,PIPELINE,EQUIPMENT FAILURE,12/2/1994 6:05,640 ASARCO AVE,AZ,HADEN,GILA,ASARCO,LAND,ARSENIC
253914,253914,253914,INCIDENT,8/6/1994 14:23,STORAGE TANK//MATERIAL RELEASED DURING MAINTENANCE,FIXED,OPERATOR ERROR,8/6/1994 8:30,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO RAY COMPLEX,LAND,SULFURIC ACID
251632,251632,251632,INCIDENT,7/25/1994 15:59,4 INCH PIPE/EXPANSION JOINT FAILED CAUSING THE RELEASE OF MATERIAL,FIXED,EQUIPMENT FAILURE,7/25/1994 5:30,100 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO RAY COMPLEX,LAND,ARSENIC
244293,244293,244293,INCIDENT,6/16/1994 12:10,STORAGE TANK//TANK LEAKED DUE TO PINHOLE IN TANK,FIXED,EQUIPMENT FAILURE,6/15/1994 13:00,640 ASARCO AVE ACID PLANT STORAGE TANK,AZ,HAYDEN,GILA,ASARCO,LAND,SULFURIC ACID
195172,195172,195172,INCIDENT,8/29/1993 11:36,14 INCH PIPELINE/BULLDOZER STRUCK PIPELINE CAUSING RUPTURE//STRUCK DURING HEAVY RAIN WHILE SHORING UP CONTAINMENT AREA.,PIPELINE,OPERATOR ERROR,8/28/1993 14:30,RAY MINE HWY 177,AZ,KEARNY,PINAL,ASARCO INC.,WATER,COPPER SULFATE (IC)
192445,192445,192445,INCIDENT,8/14/1993 13:06,FILL PIPE ON ACID TANKER TRUCK / DRIVER OVERFILLED TANK,MOBILE,OPERATOR ERROR,8/13/1993 20:30,640 ASARCO AVE ACID LOADING DOCK,AZ,HADEN,GILA,ASARCO,LAND,SULFURIC ACID
163438,163438,163438,INCIDENT,3/22/1993 14:12,TAILING PILE / WATER CUT UNDER PILE,FIXED,OTHER,3/22/1993 7:00,KENNECOTT AVE,AZ,HADEN,PINAL,ASARCO,WATER,COPPER FLOATATION TAILINGS
154090,154090,154090,INCIDENT,1/19/1993 21:17,TAILINGS PILE/FLOOD WATERS WASHED THE MATERIAL INTO THE RIVER,FIXED,NATURAL PHENOMENON,1/19/1993 13:17,GILA RIVER ASARCO COMPLEX,AZ,HADEN,PINAL,ASARCO,WATER,COPPER SULFATE (IC)
154066,154066,154066,INCIDENT,1/19/1993 17:50,STORM WATER CATCH BASIN/OVERFLOW DUE TO HEAVY RAIN,FIXED,NATURAL PHENOMENON,1/18/1993 13:00,,AZ,KERNEY,PINAL,ASARCO,WATER,COPPER SULFATE (IC)
154063,154063,154063,INCIDENT,1/19/1993 17:45,MINING SITE/RAINS CAUSED LEECHING FROM SOIL,FIXED,NATURAL PHENOMENON,1/18/1993 9:00,,AZ,KERNEY,PINAL,ASARCO,WATER,COPPER SULFATE (IC)
152826,152826,152826,INCIDENT,1/11/1993 18:25,CONTAINMENT POND/EARTHEN DAM AROUND THE POND FAILED DUE TO HEAVY RAIN,FIXED,NATURAL PHENOMENON,1/11/1993 6:30,RAY MINE,AZ,KERNEY,PINAL,ASARCO,WATER,COPPER SULFATE (IC)
152824,152824,152824,INCIDENT,1/11/1993 18:20,SUMP/OVERFLOW DUE TO HEAVY RAINS,FIXED,NATURAL PHENOMENON,1/11/1993 3:00,RAY MINE,AZ,KERNEY,PINAL,ASARCO,WATER,"COPPER SULFATE (IC), OTH=MILLIONS OF GAL"
152488,152488,152488,INCIDENT,1/8/1993 21:11,HOLDING POND / DRAINED,FIXED,DUMPING,1/8/1993 15:30,RAY MINE HWY 177,AZ,KEARNY,PINAL,ASARCO,WATER,COPPER SULFATE (IC)
152275,152275,152275,INCIDENT,1/8/1993 10:22,SUMP / OVERFLOWED DUE TO HEAVY RAINS,FIXED,OTHER,1/7/1993 23:45,STATE HWY 177,AZ,KEARNY,PINAL,ASARCO,WATER,COPPER SULFATE (IC)
150659,150659,150659,INCIDENT,12/26/1992 23:23,DRYING TOWER / FLANGE FAILURE,FIXED,EQUIPMENT FAILURE,12/26/1992 4:10,640 ASARCO AVE ACID PLANT,AZ,HADEN,GILA,ASARCO,LAND,SULFURIC ACID
140867,140867,140867,INCIDENT,10/16/1992 9:43,** CONTINUOUS RELEASE TYPE -,CONTINUOUS,UNKNOWN,10/16/1992 9:43,RAY MINE 10 MILES NORTH OF KEARNY,AZ,KEARNY,PINAL,ASARCO,,
136931,136931,136931,INCIDENT,9/16/1992 10:53,OVERHEAD ACID LINE / STRUCK BY DUMP TRUCK,FIXED,TRANSPORT ACCIDENT,9/15/1992 18:30,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,SULFURIC ACID  (93 %)
134514,134514,134514,INCIDENT,8/31/1992 12:25,PCB TRANSFORMER/GASKET FAILURE,FIXED,EQUIPMENT FAILURE,8/27/1992 13:30,HWY 177,AZ,KERNEY,PINAL,ASARCO,LAND,POLYCHLORINATED BIPHENYLS
133564,133564,133564,INCIDENT,8/25/1992 14:27,STORAGE TANK/HOLE DEVELOPED DUE TO UNKNOWN CAUSE,FIXED,UNKNOWN,8/25/1992 8:00,HADEN CONCENTRATOR KENNECOTT AVE,AZ,HADEN,PIMA,ASARCO,LAND,CARBON DISULFIDE
118451,118451,118451,INCIDENT,5/19/1992 18:27,SUMP/OVERFLOWED,FIXED,UNKNOWN,5/19/1992 14:20,POB 8,AZ,HADEN,GILA,ASARCO,LAND,SULFURIC ACID
112358,112358,112358,INCIDENT,3/30/1992 15:45,ACID TANK CAR / FLANGE LEAKED,RAILROAD,EQUIPMENT FAILURE,3/29/1992 17:00,64 ASARCO AVE,AZ,HADEN,GILA,ASARCO,LAND,SULFURIC ACID
111789,111789,111789,INCIDENT,3/25/1992 13:13,AN ACID SCRUBBER WAS BEING CLEANED/ PRODUCT OVERFLOWED,FIXED,OPERATOR ERROR,3/25/1992 4:30,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,ARSENIC ACID
108448,108448,108448,INCIDENT,2/27/1992 18:37,ACID TANK/DRAIN LINE HAD CONTAINED MORE ACID THAN ANTICIPATED WHILE ITWAS BEING DISASSEMBLED- OPERATOR ERROR.,FIXED,OPERATOR ERROR,2/27/1992 13:00,640 ASARCO AVE,AZ,HADEN,GILA,ASARCO,LAND,SULFURIC ACID
107289,107289,107289,INCIDENT,2/19/1992 0:20,VAT NO.12/LOOSE PIPE FITTING,FIXED,EQUIPMENT FAILURE,2/15/1992 14:00,HWY 177,AZ,KEARNY,PINAL,ASARCO,LAND,COPPER SULFATE (ic)
106877,106877,106877,INCIDENT,2/14/1992 17:07,LOWER SLIME DAM/OVERFLOW DUE TO HEAVY RAIN,FIXED,NATURAL PHENOMENON,2/13/1992 13:30,OFF HWY 177,AZ,KERNEY,PINAL,ASARCO-RAY COMPLEX,WATER,COPPER SULFATE (IC)
102194,102194,102194,INCIDENT,1/9/1992 12:39,SUMP ON PUMP / OVERFLOWED DUE TO OPERATOR ERROR,FIXED,OPERATOR ERROR,1/7/1992 11:00,,AZ,KEARNY,PINAL,ASARCO-RAY COMPLEX,LAND,COPPER SULFATE (IC)
90863,90863,90863,INCIDENT,10/3/1991 13:00,16 INCH PIPELINE / RUPTURED BY A FALLEN ROCK,PIPELINE,NATURAL PHENOMENON,10/2/1991 11:15,OPEN PIT MINE HWY 177,AZ,RIVERSIDE,PINAL,ASARCO-RAY COMPLEX,LAND,COPPER SULFATE (IC)
90170,90170,90170,INCIDENT,9/28/1991 14:47,55 GAL DRUMS (1-10) ON A FREIGHT TRUCK / LEAKING DUE TO CORROSION,MOBILE,EQUIPMENT FAILURE,9/27/1991 15:00,"I-10, EXIT 378 4-K TRUCK STOP",AZ,SAN SIMON,COCHISE,ASARCO-RAY COMPLEX,LAND,SULFURIC ACID
90170,90170,90170,INCIDENT,9/28/1991 14:47,55 GAL DRUMS (1-10) ON A FREIGHT TRUCK / LEAKING DUE TO CORROSION,MOBILE,EQUIPMENT FAILURE,9/27/1991 15:00,"I-10, EXIT 378 4-K TRUCK STOP",AZ,SAN SIMON,COCHISE,ASARCO-RAY COMPLEX,LAND,COPPER SULFATE (IC)
79875,79875,79875,INCIDENT,7/17/1991 19:12,TRANSFORMER/OVERHEATED,FIXED,EQUIPMENT FAILURE,7/17/1991 14:30,HAYDEN AND KENNOTTE AVES,AZ,HAYDEN,GILA,ASARCO-RAY COMPLEX,LAND,POLYCHLORINATED BIPHENYLS
79278,79278,79278,INCIDENT,7/13/1991 16:58,STORAGE TANK/ LEAK IN BLOCK-OFF GASKET,FIXED,EQUIPMENT FAILURE,7/13/1991 6:30,ASARCO AVE,AZ,HAYDEN,GILA,ASARCO-RAY COMPLEX,LAND,SULFURIC ACID
78113,78113,78113,INCIDENT,7/5/1991 12:42,SCRUBBER BLOW DOWN CONE SETTLER/OVERFLOWED DUE LEAKING ELBOW,FIXED,EQUIPMENT FAILURE,7/4/1991 21:30,ASARCO AV SCRUBBER BLOW DOWN CONE SETTLER,AZ,HAYDEN,GILA,ASARCO-RAY COMPLEX,LAND,ARSENIC ACID
76070,76070,76070,INCIDENT,6/18/1991 14:28,ABOVE GROUND STORAGE TANK / VALVE FAILURE,FIXED,EQUIPMENT FAILURE,6/18/1991 5:20,ST HW 177,AZ,SUPERIOR,PINAL,ASARCO-RAY COMPLEX,WATER,COPPER SULFATE (ic)
68708,68708,68708,INCIDENT,4/19/1991 15:46,"30"" PIPELINE/ UNKNOWN",PIPELINE,UNKNOWN,4/19/1991 6:30,ST HWY 177,AZ,KEARNY,PINAL,ASARCO INC.,WATER,COPPER SULFATE BEARING PAIL WATER SOL
59622,59622,59622,INCIDENT,2/14/1991 17:02,TRUCK FILLING STATION/VALVE LEFT OPEN,FIXED,EQUIPMENT FAILURE,2/12/1991 3:00,640 ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,SCRUBBER BLOW DOWN WATER
55136,55136,55136,INCIDENT,1/15/1991 20:57,PILE OF CRUSHED ROCK AT THE FACILITY / STORM WATERS WASHED THE MATERIALFROM THE CRUSHED ROCK INTO THE COMPANYS STORM WATER COLLECTION SYSTEM,FIXED,NATURAL PHENOMENON,1/15/1991 14:00,RAY MINE OFF OF HWY 177,AZ,HAYDEN,PINAL,ASARCO INC.,WATER,STORM WATER CONT. WITH COPPER SULFATE
54020,54020,54020,INCIDENT,1/8/1991 12:51,ABOVEGROUND STORAGE TANK / WELD DEVELOPED A LEAK,FIXED,EQUIPMENT FAILURE,1/8/1991 8:25,AT THE SMELTER FACILITY ON ASARCO AVE,AZ,HAYDEN,GILA,ASARCO,LAND,SULFURIC ACID
43351,43351,43351,INCIDENT,10/12/1990 17:07,PIPELINE/STRUCK BY A ROCK WHICH WAS BEING PUSHED BY A BULLDOZER,PIPELINE,OTHER,10/12/1990 10:10,RAY UNIT PO BOX 8,AZ,HAYDEN,PINAL,ASARCO INC,WATER,COPPER SULFATE (ic)
35395,35395,35395,INCIDENT,8/14/1990 16:13,DAM / DAM OVERFLOWED DUE TO HEAVY RAIN,FIXED,NATURAL PHENOMENON,8/14/1990 17:30,RAY MINE HWY 177,AZ,KEARNY,PINAL,ASARCO INC,WATER,COPPER SULFATE (IC)