Catalog Search Results
Pub. Date
2012
Description
Electronic equipment like computer monitors, central processing units (CPUs), keyboards, mice, scanners, and cell phones contain a number of hazardous constituents such as lead, mercury, arsenic, cadmium, chromium and silver. Many of these constituents are found on the circuit boards or in the glass. Computers also contain a battery such as nickel-cadmium, lithium or sealed lead acid. These constituents are not a concern while the equipment is in...
Pub. Date
2016.
Description
On August 5, 2015, a U.S. Environmental Protection Agency ( EPA) work crew digging into the Gold King Mine (GKM) Level 7 adit near Gladstone, Colorado, triggered a blowout and on going discharge of impounded mine water. The EPA reported that more than 3 million gallons of acidic mine water containing sediment, heavy metals, and other chemicals discharged into Cement Creek, which flows into the Animas River, and into New Mexico where the Animas River...
Pub. Date
2008.
Description
The Kerber Creek watershed is tributary to San Luis Creek and part of the Rio Grande Closed Basin. The mainstem of Kerber Creek from its source to the confluence with San Luis Creek first appeared on the Colorado 1998 303(d) list for non-attainment of cadmium (total recoverable) and silver (total recoverable) standards for Segment 9a, and for non-attainment of dissolved cadmium, dissolved copper, and dissolved zinc in Segment 9b. Segment 9a was also...
Pub. Date
2009.
Description
The Colorado Cooperative Program for Environmental Health Assessments (CCPEHA) is conducting a preliminary health consultation for the Nelson Tunnel/Commodore Waste Rock site. The purpose of conducting this health consultation is to determine any significant physical and chemical threats that the site poses to human health (including threats from wastes that were transported off-site), and make recommendations for actions to protect public health....
Pub. Date
2008.
Description
The purpose of this document two fold. First, it is to provide a comprehensive background summary of the Eagle Mine Superfund Site, the remedial activities that have taken place to date and to show the commensurate improvement in water quality and load reduction that have occurred as a result of the remedial actions. Secondly, the purpose of this document is to analyze the available metals loading data to determine if newly proposed water quality...
Pub. Date
2008.
Description
Total Maximum Daily Load (TMDL) is used to determine the maximum amount of a pollutant that a water body may receive and still maintain water quality standards. The mainstem of Silver Creek from a point immediately below the Town of Ricos water supply diversion to the confluence with the Dolores River is included in the 2006 303(d) list for exceeding the Aquatic Life use standards for zinc and cadmium.
Pub. Date
2010.
Description
The DuPont-Louviers site is a former explosives manufacturing facility that operated during most of the 20th century. The Colorado Cooperative Program for Environmental Health assessments (CCPEHA) conduct a health consultation to evaluate the potential public health hazards associated with site-related contamination that remains on the property. This health consultation addresses 9 areas of the former explosives manufacturing area of the site. The...
Pub. Date
2010.
Description
The DuPont-Louviers site is a former explosives manufacturing facility that operated during most of the 20th century. The Colorado Cooperative Program for Environmental Health assessments (CCPEHA) conduct a health consultation to evaluate the potential public health hazards associated with site-related contamination that remains on the property. This health consultation addresses the area of the DuPont-Louviers site that is inside of the security...
19) Total maximum daily load assessment, Clear Creek: Clear Creek/Gilpin/Jefferson Counties, Colorado
Pub. Date
2006.
Description
"The Clear Creek watershed is a medium size watershed that is a tributary to the South Platte River. The mainstem of Clear Creek from Silver Plume to the Farmers Highline Canal diversion in Golden, and several tributaries including South Clear Creek Leavenworth Creek, Mad Creek, Fall River, and Trail Creek, appear on the Colorado 2006 303(d) list for excessive dissolved cadmium, copper, lead, and zinc. These metals impair the Aquatic Life Cold 1 or...
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