 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 | Closed | 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-07-2017-0349 | 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-07-2018-0259 | Active | 02/06/2019 | West Lake Landfill Site |
| CERCLA-07-2018-0296 | Active | 02/28/2019 | Missouri Mining Investments, LLC |
| CERCLA-07-2019-0124 | Active | 03/27/2019 | Soulard Second Street, L.L.C. |
| CERCLA-07-2019-0204 | Active | 05/17/2019 | Kroy Building Products and Kroy Industries |
| CERCLA-07-2019-0270 | Active | 09/19/2019 | POSITRONIC INDUSTRIES, INC. |
| CERCLA-07-2020-0093 | Active | 04/17/2020 | Airsol Company |
| 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 |
| CERCLA-08-2012-0001 | Active | 11/30/2011 | RAILROAD CORRIDOR OPERABLE UNIT 1 ACM SMELTER AND REFINERY SITE - BNSF RAILWAY COMPANY |
| CERCLA-08-2012-0002 | Active | 12/01/2011 | OPHIR MILLS AND SMELTER SITE - ATLANTIC RICHFIELD COMPANY |
| CERCLA-08-2012-0004 | Active | 09/17/2012 | LIBBY ASBESTOS SITE, OU 3 - W.R. GRACE & CO. - CONN. AND KOOTENAI DEVELOPMENT CORPORATION |
| CERCLA-08-2013-0001 | Active | 02/19/2013 | RICHARDSON FLAT TAILINGS SITE OPERABLE UNITE #4 - PARK CITY MUNICIPAL CORPORATION |
| CERCLA-08-2013-0002 | Active | 03/19/2013 | EUREKA MILL SUPERFUND SITE and GCL EUREKA PROPERTIES, LLC. and GRANT LOADER |
| CERCLA-08-2013-0003 | Active | 05/13/2013 | JEFFERSON CITY RESIDENTIAL YARDS SITE, JEFFERSON CITY, JEFFERSON CITY, MONTANA and MONTANA TUNNELS MINING, INC. |
| CERCLA-08-2013-0004 | Active | 07/08/2013 | AMERICAN LEAD AND ZINC MILL SITE - BLUE TEE CORP. |
| CERCLA-08-2014-0001 | Active | 01/24/2014 | MOLINE STREET PCB SITE Aurora, Adams County, Colorao (HI TECH PLASTICS, INC.) |
| CERCLA-08-2014-0002 | Active | 01/30/2014 | MOLINE STREET PCB SITE - THE DOW CHEMICAL COMPANY |
| CERCLA-08-2014-0003 | Active | | RICHARDSON FLAT TAILINGS SITE OPERABLE UNITS 2 AND 3 - UNTIED PARK CITY MINES COMPANY |
| CERCLA-08-2014-0005 | Active | 06/26/2014 | TOWN OF EATON, COLORADO |
| CERCLA-08-2014-0006 | Active | 07/15/2014 | LINCOLN PARK SUPERFUND SITE - COTTER CORPORATION (N.S.L) |
| CERCLA-08-2014-0007 | Active | 07/21/2014 | MURRAY LAUNDRY; MURRAY TOWERS, L.C. |
| CERCLA-08-2015-0001 | Active | 02/04/2015 | EMPIRE STATE OIL CO. (DOUGLAS HUGH WHITT) |
| CERCLA-08-2015-0002 | Active | 02/04/2015 | EMPIRE STATE OIL CO. (DAVID JONES) |
| CERCLA-08-2015-0003 | Active | 02/17/2015 | MURRAY LAUNDRY (PARLEYS PARTNERS, LLC.; ARTESIAN SPRINGS IL, LLC.; HOOPER KNOWLTON III AND DAVID G. BEVAN) |
| CERCLA-08-2015-0004 | Active | 05/21/2015 | EAST HELENA RESIDENTIAL SOILS SITE; AMEICAN CHEMET CORPORATION |
| CERCLA-08-2015-0005 | Active | 06/11/2015 | Iron Springs Mining District Site, Uncompahgre National Forest; Union Oil Company of California, Inc. |
| CERCLA-08-2015-0006 | Active | 07/01/2015 | VASQUEZ BOULEVARD/INTERSTATE 70 SITE - OU #2; CITY AND COUNTY OF DENVER |
| CERCLA-08-2015-0007 | Closed | 08/10/2015 | ELKHORN ST. PESTICIDE SITE, ELKHORN LAND COMPANY, LLC, and LENNAR COLORADO, LLC. |
| CERCLA-08-2015-0008 | Active | 09/11/2015 | UINTAH MINING DISTRICT SITE, UNITED PARK CITY MINES COMPANY |
| CERCLA-08-2015-0009 | Active | 09/16/2015 | ROCKY FLATS INDUSTRIAL PARK SITE - COLUMBINE STATEGICS LLC. |
| CERCLA-08-2015-0010 | Active | 09/24/2015 | ANACONDA SMELTER SUPERFUND SITE, REGIONAL WATER, WASTE, AND SOILS OPERABLE UNIT, WARM SPRINGS CREEK REMEDIAL DESIGN UNIT - ATLANTIC RICHFIELD COMPANY |
| CERCLA-08-2015-0011 | Active | 09/24/2015 | ANACONDA SMELTER SUPERFUND SITE, COMMUNITY SOILS OPERABLE UNIT - ATLANTIC RICHFIELD COMPANY |
| CERCLA-08-2016-0001 | Active | 11/12/2015 | SMURFIT STONE MILL SITE - INTERNATIONAL PAPER COMPANY; WESTROCK CP., LLC.; M2 GREEN REDEVELOPMENT LLC. |
| CERCLA-08-2016-0002 | Active | 11/30/2015 | COLUMBIA FALLS ALUMINUM PLANT a/k/a ANACONDA ALUMINUM CO., COLUMBIA FALLS REDUCTION PLANT; COLUMBIA FALLS ALUMINUM COMPANY LLC. |
| CERCLA-08-2016-0003 | Active | 05/26/2016 | LINCOLN PARK SUPERFUND SITE |
| CERCLA-08-2016-0004 | Active | 05/31/2016 | BULLION CANYON MILLS SITE - CROWN MINES LLC |
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