 CERCLA-07-2012-0052 | Active | | Valles Mines Site |
| CERCLA-07-2012-0053 | Active | 08/03/2012 | Former Carter White Lead Facility |
| CERCLA-07-2013-0002 | Active | 06/24/2013 | Leadwood Mine Tailings Superfund Site |
| CERCLA-07-2013-0004 | Closed | 08/07/2013 | Iowa Nebraska Light & Power |
| CERCLA-07-2013-0005 | Active | | 237 Benton St, LLC |
| CERCLA-07-2013-0006 | Active | | Smith Water |
| CERCLA-07-2013-0007 | Active | | Integrated Plastics Solutions LLC, Kansas Aluminum, Inc and Brian Riley |
| CERCLA-07-2013-0008 | Active | 09/10/2013 | ACF Industries LLC |
| CERCLA-07-2013-0009 | Active | 09/19/2013 | Carter Building Inc., |
| CERCLA-07-2013-0010 | Closed | 09/26/2013 | Dyno Nobel, Inc |
| CERCLA-07-2013-0011 | Active | 10/28/2013 | Colorado Avenue Subsite, Operable Unit 01, Hastings Ground Water Contamination Site
Dravo Corporation |
| CERCLA-07-2014-0002 | Active | 04/17/2014 | West Lake Landfill Superfund Site, Bridgeton Landfill, LLC, and Rock Road Industries, Inc. |
| CERCLA-07-2014-0004 | Active | | Western Mineral Products Superfund Site |
| CERCLA-07-2014-0005 | Closed | 07/29/2014 | Jasper County Site Superfund Site, Jasper County, Missouri, Lynden L. and G. Sue Carr |
| CERCLA-07-2014-0006 | Closed | 10/07/2014 | Jasper County Site - Mark Russell |
| CERCLA-07-2014-0007 | Active | | West Lake Landfill |
| CERCLA-07-2014-0008 | Active | | Viburnum Trends Haul Road Site |
| CERCLA-07-2015-0001 | Active | | Beatrice, Nebraska FMGP |
| CERCLA-07-2015-0003 | Active | 08/11/2015 | Larry W. and Sandra A. Wald |
| CERCLA-07-2015-0004 | Active | 06/10/2016 | Viburnum Trend Lead Haul Roads |
| CERCLA-07-2015-0006 | Active | 11/20/2015 | Compton's LLC and Spectrum Brands, Inc |
| CERCLA-07-2016-0001 | Active | 11/06/2015 | Big River Mine Tailing Superfund Site |
| CERCLA-07-2016-0004 | Active | 03/08/2016 | Jasper County Superfund Site and Farmland Industries |
| CERCLA-07-2016-0005 | Active | 04/28/2016 | West Lake Landfill Superfund Site/Bridgeton Landfill |
| CERCLA-07-2016-0007 | Active | 08/05/2016 | Sporlan Valve Plant 1 Site |
| CERCLA-07-2016-0008 | Active | 09/01/2016 | Syntex |
| CERCLA-07-2016-0011 | Active | 06/30/2016 | Jasper County Access Order |
| CERCLA-07-2016-0012 | Active | 07/20/2016 | Oak Grove Village Well Superfund Site |
| CERCLA-07-2016-0013 | Active | 09/22/2016 | State of Missouri, Department of Natural Resources, Division of Parks |
| CERCLA-07-2016-0015 | Active | 08/04/2016 | Caney Residential Yards Site |
| CERCLA-07-2016-0016 | Active | 09/29/2016 | Valley Park TCE |
| CERCLA-07-2016-0018 | Active | 09/26/2016 | Missouri Electric Works - MEW |
| CERCLA-07-2017-0001 | Active | 10/19/2016 | Big River Mine Tailings Superfund Site/The Doe Run Resources Corporation, Respondent |
| CERCLA-07-2017-0002 | Active | 11/22/2016 | PCE/TCE Northeast Contamination Site/Kroy Industries, Inc. |
| CERCLA-07-2017-0003 | Closed | 12/07/2016 | Airosol, Co., Inc. |
| CERCLA-07-2017-0004 | Active | 07/26/2017 | Beatrice Former Manufactured Gas Plant |
| CERCLA-07-2017-0005 | Active | 05/02/2017 | Iowa Nebraska Light & Power Former Manufactured Gas Plant Site |
| CERCLA-07-2017-0006 | Active | 09/13/2017 | 2ND & Smelter Site |
| CERCLA-07-2017-0129 | Active | 01/03/2018 | Huster Road Substation - Ameren |
| CERCLA-07-2017-0163/RCRA-07-2017-0164 | Active | | Sensient Colors LLC |
| CERCLA-07-2017-0349 | Active | | Second and Smelter |
| CERCLA-07-2017-0457 | Active | 12/11/2017 | Toastmaster - Macon, Compton’s LLC and Richard Compton |
| CERCLA-07-2018-0017 | Active | | Pools Prairie |
| CERCLA-07-2018-0171 | Active | 02/15/2018 | Big River Mine Tailings |
| CERCLA-08-2007-0001 | Active | 11/29/2006 | EMPIRE CANYON SITE |
| CERCLA-08-2007-0002 | Active | 12/27/2006 | BOUNTIFUL 5 POINTS PCE PLUME SITE
YOUR VALET CLEANERS, INC. |
| CERCLA-08-2007-0003 | Closed | 02/28/2007 | BEAVER WOOD PRODUCTS - RICHARD E. GROSSWILER and LORETTA L. GROSSWILER |
| CERCLA-08-2007-0004 | Closed | 04/23/2007 | STANDARD MINE SUPERFUND SITE |
| CERCLA-08-2007-0005 | Active | 04/26/2007 | CLEAR CREEK/CENTRAL CITY SUPERFUND SITE
MARK C. RATCLIFFE |
| CERCLA-08-2007-0006 | Active | 04/26/2007 | CLEAR CREEK/CENTRAL CITY SUPERFUND SITE
JEFFERSON ALAN FASSLER andc BLANCA LIDIA LEONARDO deFASSLER |
| CERCLA-08-2007-0007 | Active | 05/07/2007 | JACOBS SMELTER SITE |
| CERCLA-08-2007-0008 | Active | 06/07/2007 | ANACONDA SMELTER SUPERFUND SITE, REGIONAL WATER, WASTE, AND SOILS OPERABLE UNIT, SOUTH OPPORTUNITY UPLANDS REMEDIAL DESIGN UNIT, ATLANTIC RICHFIELD CO. |
| CERCLA-08-2007-0009 | Active | 06/11/2007 | BELDEN CRIBBING SITE - UNION PACIFIC RAILROAD |
| CERCLA-08-2007-0011 | Closed | 07/25/2007 | WELD COUNTY WASTE DISPOSAL SITE |
| CERCLA-08-2007-0012 | Active | 09/17/2007 | LIBBY ASBESTOS SITE, OU3
W. R. GRACE AND CO.; KOOTENAI DEVELOPMENT CO. |
| CERCLA-08-2008-0001 | Active | 11/14/2007 | VERMICULITE INTERMOUNTAIN SITE - PACIFICORP, LA QUINTA PROPERTIES, INC., AND VAN COTT, BAGLEY, CORNWALL AND MCCARTHY 401(K) PROFIT SHARING PLAN SUPPLEMENT TRUST |
| CERCLA-08-2008-0002 | Closed | 02/08/2008 | MCLAREN TAILINGS SITE - CAMJAC, INC. |
| CERCLA-08-2008-0003 | Closed | 02/08/2008 | MCLAREN TAILINGS SITE - STATE OF MONTANA, SETTLING RESPONDENT |
| CERCLA-08-2008-0004 | Closed | 02/19/2008 | MCLAREN TAILINGS SITE - STATE OF MONTANA |
| CERCLA-08-2008-0005 | Active | 03/24/2008 | STANDARD MINE SUPERFUND SITE - MARK COOK AND NORMAN COOK |
| CERCLA-08-2008-0006 | Active | 07/29/2008 | GEORGETOWN RAILROAD BED SITE - ATLANTIC RICHFIELD CO. |
| CERCLA-08-2008-0007 | Active | 08/07/2008 | BARKER-HUGHESVILLE SUPERFUND SITE; CASCADE AND JUDITH BASIN COUNTIES
THE DOE RUN RESOURCES CORPORATION |
| CERCLA-08-2008-0009 | Active | 09/23/2008 | ANACONDA SMELTER SUPERFUND SITE - ATLANTIC RICHFIELD COMPANY |
| CERCLA-08-2008-0010 | Active | 09/25/2008 | BIO ENERGY OF COLORADO LLC, JAMESWAY CARTAGE, INC. |
| CERCLA-08-2008-0011 | Active | 09/30/2008 | CITY AND COUNTY OF DENVER, COLORADO |
| CERCLA-08-2009-0001 | Closed | 05/05/2009 | BUENO MILL AND MINE SITE AND OZARK-MAHONING COMPANY and it's parents DELAWARE
CHEMICALS CORPORATION AND ARKEMA, INC. |
| CERCLA-08-2009-0002 | Active | 08/17/2009 | EVENING STAR MINE |
| CERCLA-08-2009-0003 | Active | 07/21/2009 | UTAH POWER AND LIGHT/AMERICAN BARREL SUPERFUND SITE |
| CERCLA-08-2009-0004 | Active | 07/31/2009 | 5M STAGING AREA SITE, SILVER REEF PROPERTIES, LLC. |
| CERCLA-08-2009-0005 | Active | 08/12/2009 | KENNECOTT NE STOCKTON PROPERTY - KENNECOTT UTAH COPPER LLC, subsidiary OM ENTERPRISES CO. and affiliate KENNECOTT BARNEYS CANYON MINING CO. |
| CERCLA-08-2009-0006 | Closed | 09/24/2009 | UPPER TENMILE CREEK MINING AREA - KIRK AND CATHY EAKIN |
| CERCLA-08-2009-0006 | Active | 09/24/2009 | UPPER TENMILE CREEK MINING AREA - KIRK AND CATHY EAKIN |
| CERCLA-08-2009-0007 | Active | 09/29/2009 | LOWER SILVER CREEK, OPERABLE UNIT 2, RICHARDSON FLAT TAILINGS SITE - UNITED PARK CITY MINES COMPANY |
| CERCLA-08-2009-0007 | Active | 09/29/2009 | LOWER SILVER CREEK, OPERABLE UNIT 2, RICHARDSON FLAT TAILINGS SITE - UNITED PARK CITY MINES COMPANY |
| CERCLA-08-2009-0008 | Closed | 09/29/2009 | ANTIMONY MILLS - RICHARD DAVIS |
| CERCLA-08-2010-0001 | Active | 11/18/2009 | HIGHWAY 89 STORAGE UNITS - ATK LAUNCH SYSTEMS, INC. |
| CERCLA-08-2010-0002 | Closed | 02/12/2010 | COLORADO BUMPER EXCHANGE |
| CERCLA-08-2010-0003 | Active | 05/10/2010 | BILLINGS PCE SITE; J.E.M., LLC. |
| CERCLA-08-2010-0004 | Active | 09/13/2010 | ANACONDA SMELTER SUPERFUND SITE, REGIONAL WATER, WASTE, AND SOILS OPERABLE UNIT, FLUVIAL TAILINGS REMEDIAL DESIGN UNIT; ATLANTIC RICHFIELD COMPANY |
| CERCLA-08-2010-0005 | Active | 09/13/2010 | ANACONDA SMELTER SUPERFUND SITE, REGINAL WATER, WASTE, AND SOILS OPERABLE UNIT, EAST PORTION ACTIVE RAILROAD/BLUE LAGOON REMEDIAL DESIGN UNIT, WEST PORTION - ATLANTIC RICHFIELD CO., RARUS RAILWAY CO., |
| CERCLA-08-2010-0006 | Active | 09/16/2010 | KERBER CREEK SITE - TROUIT UNLIMITED, INC., GOOD SAMARITAN |
| CERCLA-08-2010-0007 | Awaiting Payment/SEP | 09/30/2010 | CATTLEMAN'S CHOICE LOOMIX, LLC. |
| CERCLA-08-2011-0001 | Active | 12/21/2010 | STANDARD MINE SITE - ELIJAH J. VALENCIA |
| CERCLA-08-2011-0002 | Active | 01/12/2011 | UNION PACIFIC RAILROAD - 80TH AVENUE TANK FARM SITE |
| CERCLA-08-2011-0003 | Active | 03/02/2011 | RICHFIELD PCE SITE - MR. JERRY K. THOMAS and MRS. KATRINA M. THOMAS |
| CERCLA-08-2011-0004 | Active | 03/07/2011 | INTERNATIONAL SMELTING AND REFINING SITE - ATLANTIC RICHFIELD CO. |
| CERCLA-08-2011-0005 | Active | 03/17/2011 | RICO-ARGENTINE SITE - ALTANTIC RICHFIELD CO. |
| CERCLA-08-2011-0007 | Active | 03/23/2011 | 10,000 HAVANA - CRICKET MASCARENAS |
| CERCLA-08-2011-0008 | Active | 05/12/2011 | UPPER ANIMAS MINING DISTRICT SITE - TODD C. HENNIS, SAN JUAN CORPORATION , AND SALEM MINERALS, INC. |
| CERCLA-08-2011-0009 | Active | 06/02/2011 | ANACONDA SMELTER SUPERFUND SITE, REGIONAL WATER, WASTE, AND SOILS OPERABLE UNIT, SMELTER HILL FACILITIES ARE REMEDIAL DESIGN UNIT - ATLANTIC RICHFIELD COMPANY |
| CERCLA-08-2011-0010 | Active | 06/16/2011 | BARKER-HUGHESVILLE SUPERFUND SITE CASCADE AND JUDITH BASIN COUNTIES, MONTANA - THE DOE RUN RESOURCES CORP. |
| CERCLA-08-2011-0011 | Active | 07/20/2011 | BUTTE PRIORITY SOILS OPERABLE UNIT OF THE SILVER BOW CREEK/BUTTE AREA (BUTTE PORTION) SITE |
| CERCLA-08-2011-0012 | Active | 08/03/2011 | 10,000 HAVANA SUPERFUND SITE (Bernard (Leo) Long) |
| CERCLA-08-2011-0013 | Active | 08/04/2011 | U. S. MAGNESIUM SITE - U. S. MAGNESIUM LLC. |
| CERCLA-08-2011-0014 | Closed | 08/25/2011 | LOCKWOOD SOLVENT GROUND WATER PLUME - SOCO WEST, INC. |
| CERCLA-08-2011-0015 | Active | 08/26/2011 | BOUNTIFUL/WOODS CROSS/5TH SOUTH PCE PLUME NPL SITE - SECURITY INVESTMENT LTD. |
| CERCLA-08-2011-0016 | Active | 09/20/2011 | BOUNTIFUL WOODS CROSS/5TH SOUTH PCE PLUME NPL SITE - DAVIS COUNTY |
| CERCLA-08-2011-0017 | Active | 09/08/2011 | ACM SMELTER AND REFINERY SITE - OPERABLE UNIT #1 ATLANTIC RICHFIELD CO., ARCO ENVIRONMENTAL REMEDIATION, L.L.C. |
| CERCLA-08-2011-0018 | Active | 09/29/2011 | GRANITE TIMBER POST AND POLE - MARGERY METESH |
| CERCLA-08-2011-0019 | Active | 09/29/2011 | GRANITE TIMBER POST AND POLE - MARK METESH |
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