| 02/09/2012 |  | Union Pacific Railroad Company to pay $1.5 million for Clean Water Act violations in Colorado, Utah and Wyoming |
| 01/10/2012 |  | EPA, State of Colorado join Children’s Hospital to highlight benefits of new mercury and air toxics standards for power plants |
| 12/12/2011 |  | EPA awards $50,000 to two Utah organizations for environmental justice efforts |
| 12/12/2011 |  | EPA awards $50,000 to two Colorado organizations for environmental justice efforts |
| 12/08/2011 |  | EPA Releases Draft Findings of Pavillion, Wyoming Ground Water Investigation for Public Comment and Independent Scientific Review |
| 11/02/2011 |  | Agreements with Williams and ConocoPhillips resolve alleged Clean Air Act violations on Southern Ute Reservation |
| 10/27/2011 |  | EPA issues construction approval for impoundments at the Piņon Ridge Uranium Mill in Montrose County (Colo.) |
| 10/21/2011 |  | EPA Emergency Crews Successful in Snuffing Tire Fire (South Dakota) |
| 10/21/2011 |  | EPA and GSA visit an “urban mine” to highlight growing Colorado jobs sector |
| 10/20/2011 |  | EPA approves Ute Mountain Ute Tribe's Water Quality Standards |
| 10/12/2011 |  | John Morrell Company to pay penalty and improve management of ammonia at Sioux Falls meat processing plant |
| 10/04/2011 |  | EPA announces completion of mission assignment in response to Minot, ND floods |
| 09/29/2011 |  | EPA and partners unveil state's first WaterSense home in Colorado Springs |
| 09/27/2011 |  | City of Pueblo (Colo.) recognized for using solar power at wastewater treatment facility |
| 09/19/2011 |  | EPA Region 8 supermarkets recognized for environmental achievement under GreenChill partnership |
| 09/14/2011 |  | Habitat for Humanity of Metro Denver partners with EPA to build greener homes |
| 09/14/2011 |  | $313,000 awarded to clean up former dry cleaning property in Loveland (Colo.) |
| 08/25/2011 |  | EPA estimates on toxicity of Libby Asbestos available for public comment and independent scientist review |
| 08/25/2011 |  | Missoula nonprofit receives $32k environmental education grant |
| 08/25/2011 |  | City and County of Denver receives $45k environmental education grant |
| 08/25/2011 |  | Four Corners School of Outdoor Education receives $36k environmental education grant |
| 08/25/2011 |  | South Dakota programs receive $100k in environmental education grant funding |
| 08/18/2011 |  | Town of Hot Sulphur Springs, Colo., recognized for improvements to drinking water system |
| 08/12/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), August 12th, 2011 |
| 08/08/2011 |  | EPA R8 Enforcement News: Candle Development to pay penalty and restore wetlands at Sioux Falls housing development |
| 08/05/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), August 5th, 2011 |
| 07/28/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), July 28, 2011 |
| 07/21/2011 |  | EPA update on Yellowstone River oil spill (Silvertip Pipeline), July 21, 2011 |
| 07/20/2011 |  | EPA update on Yellowstone River oil spill (Silvertip Pipeline), July 20, 2011 |
| 07/19/2011 |  | EPA update on Yellowstone River oil spill (Silvertip Pipeline), July 19, 2011 |
| 07/18/2011 |  | EPA update on Yellowstone River oil spill (Silvertip Pipeline), July 18, 2011 |
| 07/16/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), July 16, 2011 |
| 07/15/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), July 15, 2011 |
| 07/14/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), July 14, 2011 |
| 07/13/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), July 13, 2011 |
| 07/13/2011 |  | City of New Underwood (SD) recognized for drinking water infrastructure |
| 07/12/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), July 12, 2011 |
| 07/12/2011 |  | Sitting Bull College receives $300K to grow green jobs |
| 07/11/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), July 11, 2011 |
| 07/11/2011 |  | City of Lennox (SD) recognized for water quality infrastructure |
| 07/11/2011 |  | Dyno Nobel to pay penalty and improve accident prevention and preparedness planning at Cheyenne facility |
| 07/11/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), July 10, 2011 |
| 07/09/2011 |  | EPA Update on Yellowstone River Oil Spill (Silvertip Pipeline), Week 1 |
| 07/08/2011 |  | Media Advisory: EPA to hold media availability session on July 9th |
| 07/08/2011 |  | July 7 Update on Federal Response to Silvertip Pipeline Oil Spill Near Billings, Montana |
| 07/06/2011 |  | July 6 Update on Federal Response to Oil Spill near Billings, Montana |
| 06/29/2011 |  | Gandomcar Properties ordered to restore impacted section of Plum Creek (Douglas County, Colo.) |
| 06/24/2011 |  | EPA announces South Platte River as one of seven Urban Waters Federal Partnership locations |
| 06/23/2011 |  | EPA selects Colorado, North Dakota sites as case study locations for national hydraulic fracturing study |
| 06/22/2011 |  | Town of Medicine Bow (Wyo.) recognized for wind turbines at water facilities |
| 06/22/2011 |  | EPA contains landfill fire on Pine Ridge Reservation |
| 06/07/2011 |  | City of Cheyenne receives $1M for downtown property revitalization |
| 06/06/2011 |  | EPA invests $4.3M to boost the revitalization of properties in Montana communities |
| 06/06/2011 |  | EPA grant to clean up site slated for sustainable housing development in Lakewood, Colo. |
| 06/06/2011 |  | EPA responds to crude release near Rawlins, WY
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| 05/16/2011 |  | EPA recognizes Missoula County for drinking water system improvements |
| 05/09/2011 |  | EPA proposes pesticide applicator certification plan for Indian Country in Region 8 |
| 05/06/2011 |  | EPA issues new draft permit associated with aquifer pump test at Weld County (Colo.) uranium site |
| 05/04/2011 |  | Air toxics near Sunnyside Elementary in Durango (Colo.) School District are below levels of concern |
| 05/03/2011 |  | EPA releases draft estimates of asbestos toxicity in Libby and Troy, Montana |
| 04/15/2011 |  | La Plata County, CO receives $500k to reduce greenhouse gases, protect health and support local businesses |
| 04/15/2011 |  | Lewis and Clark County receives $305K to help small businesses save money and reduce greenhouse gases |
| 04/04/2011 |  | Bar One Ranch to complete restoration of wetlands and pay $275,000 penalty for violations of Clean Water Act at Ninemile Creek (Montana) |
| 03/29/2011 |  | Cenex Harvest States, Inc. to pay EPA penalty and conduct safety workshops |
| 03/08/2011 |  | EPA adds Anaconda Copper Mining Co. Smelter and Refinery in Cascade County to Superfund site list |
| 03/02/2011 |  | Boulder students win President’s Environmental Youth Award |
| 02/24/2011 |  | Metal Management West, Inc. to pay $75,000 for alleged Clean Air Act ozone rule violations (Utah) |
| 02/10/2011 |  | Devil’s Slide Quarry owners to pay $50,000 for unpermitted discharges to the Weber River (Utah) |
| 02/07/2011 |  | EPA to revise permit associated with aquifer pump test at Weld County (Colo.) uranium site |
| 02/02/2011 |  | EPA supports San Luis Valley (Colo.) partnership to reduce exposures from environmental pollutants |
| 01/20/2011 |  | Thatcher Chemical to pay penalty and reduce air emissions for failing to implement risk management program (Utah) |
| 01/03/2011 |  | Gasco to pay $350,000 penalty, install air emissions controls for violations at compressor facility on Uintah and Ouray Reservation |
| 12/30/2010 |  | EPA and Crocs settle case over antimicrobial claims |
| 12/16/2010 |  | EPA orders oil companies to monitor public water supply and private wells in Poplar, Montana |
| 12/09/2010 |  | Construction companies cited for damages to Flathead Lake (Mont.) |
| 12/06/2010 |  | EPA announces 2010 Enforcement and Compliance Results, includes summary for Mountains and Plains states |
| 12/03/2010 |  | EPA issues permit associated with aquifer pump test at Weld County (Colo.) uranium site
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| 11/22/2010 |  | Latest summary of EPA actions to ensure safe drinking water in Wyoming |
| 11/22/2010 |  | Latest summary of EPA actions to ensure safe drinking water in Utah |
| 11/22/2010 |  | Latest summary of EPA actions to ensure safe drinking water in Montana |
| 11/22/2010 |  | Latest summary of EPA actions to ensure safe drinking water in Colorado Indian country |
| 10/15/2010 |  | Kalispell (Mont.) receives grant to advance downtown revitalization |
| 10/05/2010 |  | Elam Construction, 4B Land and Livestock ordered to mitigate damage to Yampa River (Colo.) wetlands |
| 10/01/2010 |  | Settlements at South Dakota ethanol facilities ensure air pollutant reductions, yield $225K in penalties |
| 09/21/2010 |  | Polidori Corp. cited for damages to Panguitch Lake (Utah) |
| 09/01/2010 |  | EPA releases results of Pavillion, Wyo. water well testing |
| 08/26/2010 |  | Blackfeet Tribe applies for Clean Water Act standards program |
| 07/29/2010 |  | EPA provides Missoula $850,000 to advance revitalization efforts |
| 07/27/2010 |  | EPA to remove hazardous wastes at Elizabeth Mining and Development property in Montrose County (Colo.)
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| 07/09/2010 |  | Media Advisory: EPA to Host Public Meeting on National Hydraulic Fracturing Study in Denver on July 13 |
| 06/17/2010 |  | EPA proposes removal of more than 2,500 acres at Rocky Mountain Arsenal from Superfund list |
| 06/08/2010 |  | EPA and Wyoming's Frontier Refining Inc., resolve enforcement action |
| 06/07/2010 |  | Latest summary of EPA actions to ensure safe drinking water in Wyoming |
| 06/07/2010 |  | Latest summary of EPA actions to ensure safe drinking water in Utah |
| 06/07/2010 |  | Latest summary of EPA actions to ensure safe drinking water in Montana |
| 05/20/2010 |  | EPA recognizes Bigfork, Montana students for contributions toward natural resource conservation |
| 05/12/2010 |  | Bozeman, Mont. firm receives $345K for carbon dioxide monitoring technology |
| 05/12/2010 |  | Wheat Ridge, Colo. firm receives $345K for hydrogen peroxide production technology |
| 05/11/2010 |  | EPA, MDEQ Sign Records of Decision for Libby Asbestos Site |
| 04/28/2010 |  | Crystal River Elementary School (Carbondale, Colo.) selected as contestant in EPA National Building Competition |