Based upon a list of potential sources, APCD directed BBC to focus on potential control measures for electric generating units (EGUs), cement plants and petroleum refineries. The research summarized in this report is based entirely on existing studies and information developed by other regulatory agencies and industry sources. No new, original research was undertaken for this study and engineering assessments of specific Colorado facilities have not been conducted.
New maximum achievable control technology (MACT) standards will apply to facilities with surface coating operations that emit or have the potential to emit (PTE) more than the MACT standard thresholds of 10 tons per year (tpy) or more of any single HAP or 25 tpy or more of total HAPs (THAP). A facility's PTE is the quantity of emissions that would be generated at maximum capacity under a facility's physical or operational design.
A panel of independent experts was charged with the responsibility to recommend an effective mechanism to implement Air Quality Control Commission Regulation 2, Part B, Section IV.A., which allows the use of alternative or experimental covers on anaerobic lagoons in lieu of an approved cover. These covers must demonstrate that the control of odorous gases is of comparable effectiveness to an approved cover, as defined in Regulation No. 2, Part B. Upon such a demonstration the Division may authorize alternative or experimental covers to operate as "approved" covers.
The Division has identified 2018 nitrate visibility impacts at Wheeler Peak (WHPE) Wilderness Area that trigger interstate consultation with New Mexico. Also, Colorado nitrate impacts are of concern at two other nearby New Mexico Class I areas (BAND & SAPE), Canyonlands National Park (CANY) in Utah, and Wichita Mountains NWR Wilderness in Oklahoma. The "concern" visibility impacts are at or slightly above the arbitrary threshold criteria established by the Division. The Western Regional Air Partnership (WRAP) Implementation Working Group (IWG) has not formally established threshold criteria on interstate Class I area impacts but an informal threshold of 10% has been suggested among member states. If the Division were to utilize the informal threshold criteria of the WRAP Colorado would have only one 2018 visibility impact on two nearby Class I areas exceeding the 10% threshold.
This fact sheet provides an overview of the air quality requirements affecting oil and gas exploration and production (E&P) condensate tanks, tank batteries, engines, dehydrators and the wells serviced by these tanks and tank batteries in Colorado.
