Steam generating units (boilers), that release air pollutants are regulated. This guidance document provides an overview of air emission report and permitting requirements for small boilers using distillate oil, residual oil, natural gas and liquid petroleum gas., Description based on online resource; title from PDF caption (viewed July 2017)
Surface mining operations in Colorado, including sand and gravel pits, borrow pits, and quarries, as well as concrete batching operations and hot mix asphalt plants, release air pollutants that are regulated by the Air Pollution Control Division (Division) at the Colorado Department of Public Health and Environment. This document provides an overview of the air pollution reporting and permitting requirements that apply to these operations., "9/2012.", Description based on online resource; title from PDF caption (viewed July 2017)
This report summarizes the results of an analysis of nitrate concentrations in the South Platte River between Chatfield Dam and the Burlington Ditch headgate (Upper South Platte Segments 6c and 14). The analysis is applicable to present and future conditions. Because the context for the analysis is a TMDL for nitrate, all influences on loads and concentrations of nitrate are taken into account as fully as possible on the basis of monitoring data, effluent characteristics, or other pertinent information. The focus of the analysis is on low-flow conditions because critical concentrations of nitrate coincide with minimum availability of dilution for point-source discharges. For this reason, identification of critical low flows is a major component of the analysis., prepared for: Colorado Department of Public Health and Environment, Water Quality Control Division ; prepared by William M. Lewis, Jr. [and] James F. Saunders, III., "Date of Preparation: March 3, 2000, Revised: October 8, 2001, Revised: May 16, 2003.", Online resource; title from PDF cover (viewed May 2016)
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 joins the San Juan River before flowing into the Navajo Nation and Utah. EPA also estimated that more than 400,000 Kg of metals entered the Animas River as a result of the GKM discharge. Metals are accumulated and stored in streambed sediments during low flow, and these metals can be released into the water column in both dissolved and suspended phases during periods of high flow. A consortium of state, tribal, county, municipal and federal agencies, whose logos appear on the first page of this document above, are working together to put the following actions and contingencies into place., "March 24, 2016.", Numerous governmental agencies took part in the planning: New Mexico Environment Department; Utah Department of Environmental Quality; Colorado Department of Public Health & Environment; Southern Ute Indian Tribe; Navajo Nation Environmental Protection Agency; Ute Mountain Ute Tribe; San Juan County, New Mexico; City of Aztec, New Mexico; City of Farmington, New Mexico; San Juan Soil and Water Conservation District (NM); La Plata County, Colorado; City of Durango; San Juan County; Silverton (Colo.); San Juan Basin Health Department; New Mexico Department of Health; San Juan County Public Health Service; New Mexico Emergency Management and Homeland Security; Colorado Division of Homeland Security & Emergency Management; New Mexico State University; New Mexico Department of Agriculture; New Mexico Tech; New Mexico Bureau of Geology and Mineral Research, USGS., Online resource; title from PDF cover (viewed August 2020)
The Basic Standards and Methodologies for Surface Waters (Regulation No. 31, 5 CCR 1002-31) contains antidegradation provisions which provide three separate levels of antidegradation protection (see section 31.8). This document is intended to provide guidance to Water Quality Control Division staff and to the public regarding the implementation of the antidegradation significance tests found in Regulation No. 31. This guidance is designed as a framework to provide a documented methodology and to ensure antidegradation reviews are conducted in a consistent manner. Unique situations will be assessed on a case-by-case basis, using site-specific data and methodology., "December 2001.", Description based on online resource; title from PDF cover (viewed May 2014)
Antimicrobial resistance is a serious health threat, and infections by antimicrobial resistant pathogens are on the rise. In the latest report entitled, "Antibiotic Resistance Threats in the United States--2019," the Centers for Disease Control and Prevention (CDC) estimates there are 2.8 million illnesses and 35,000 deaths every year due to antimicrobial-resistant pathogens. Infections with antimicrobial resistant pathogens are difficult to treat, and are associated with longer hospital stays, increased health care costs, and increased risk of death following infection., "January 2020.", Online resource; title from PDF cover (viewed November 2021)
Direct measurement and characterization of the health and well being of the aquatic community in surface water are critical to determining how effectively Colorado is achieving the ultimate goals of the Colorado Water Quality Control Act ("CWQCA") and the federal Clean Water Act ("CWA"), which are to restore, maintain, protect, and improve the quality of our water resources. These legislative policy statements highlight the importance of having tools and techniques available to evaluate the current aquatic-life conditions in our surface waters, and to set goals for the future., "Approved: October 12, 2010. Expires: December 31, 2013.", Online resource; title from PDF cover (viewed August 2020)
