The Quality Assurance Project Plan (QAPP) provides a clear description of the activities of a project in the acquisition of environmental data or information from direct measurement activities, existing data, or generated by models., prepared by the Technical Services Program, Air Pollution Control Division., "July 30th 2015.", Online resource; title from PDF cover (viewed April 2023)
submitted to: Air Pollution Control Division, Colorado Department of Public Health and Environment ; prepared for Energy Fuels Resources Corporation ; prepared by Kleinfelder West, Inc., "Date: May 28, 2010.", "DCN: 83088.3.1.2-ALB10RP001.", Online resource; title from PDF cover (viewed May 2013), Project No. 83088
From late July to late August 2012, the Colorado, "December 5, 2012." -- Cover., "October 16, 2014." -- Page 48., In October 2014, Addendum to Air emissions case study related to oil and gas development in Erie, Colorado for correction of incorrect methane data, was created and appended to the original document 2012 study. Pagination is consecutive throughout. Air Pollution Control Division, conducted air sampling adjacent to natural gas well completion activities in Erie, Colorado. The purpose of the sampling was to measure air emissions that may be associated with the well completion activities. The air sampling results are consistent with what would be expected. Concentrations of likely oil and gas related compounds such as ethane and propane were found to be slightly higher at the Erie sites than in downtown Denver, but much lower than in Platteville where greater oil and gas activity is taking place. Similarly, methane levels at the Erie sites were consistent with other locations, and were higher than in Denver, and lower than in Platteville. Toluene and benzene levels were higher at one Erie monitor than the other, likely due to emissions from truck traffic., Online resource; title from PDF cover (viewed April 2023)
prepared for Colorado Department of Health and Environment, Air Pollution Control Division and Denver Regional Air Quality Council ; prepared by Ralph E. Morris [and 4 others]., "February 27, 2004.", Final Report., Includes bibliographical references., Cover title.
The primary goals of this study are to: Develop comprehensive inventories of Prevention of Significant Deterioration (PSD) increment consuming emissions for nitrogen oxides (NOx) in southwest Colorado; Develop meteorological fields as necessary for input to the Industrial Source Complex (ISC3) and CALPUFF models; Setup and run the ISC3 and CALPUFF models for appropriate near-field and far-field receptors, respectively; Compare modeled concentration estimates with appropriate Class I and Class II NO2 increments., "October 29, 1999.", Include bibliographical references pages 271-272., Online resource; title from PDF cover (viewed February 2017)
The Division has prepared a table listing indoor air remediation goals and action levels for a number of volatile organic compounds to be used at sites where vapor intrusion may be a concern. This was prompted in response to the U.S. Environmental Protection Agency (EPA) having released a new assessment of the health effects of trichloroethene (TCE) and tetrachloroethene (PCE), two commonly used degreasing solvents., Online resource; title from PDF caption (viewed April 2023)