John Egan, ALL4's Technical Director, attended the NCASI Northern Regional meeting in Portland, Maine on May 12 - 13. John gave a timely presentation regarding a Mill PSD permitting project that experienced the immediate impacts of the new 1-hour NO2 NAAQS that took effect on April 12. John also attended the Northern Regional Committee meeting after being selected by NCASI as a new member of that planning group.
EPA Approves Iowa’s State Implementation Plan for Reducing Particulate Matter in Muscatine’s Air
The U.S. Environmental Protection Agency (EPA) has approved Iowa’s state implementation plan (SIP) to reduce fine particle emissions in Muscatine County. The Clean Air Act requires states to develop plans to attain and maintain the national air standards in all areas of the state. These plans, known as SIPs, are developed by state and local air quality management agencies and submitted to EPA for approval. Because the Muscatine area has struggled with consistently attaining the fine particulate matter...
BREEZE AERMOD 7.4 Enhancements Streamline U.S. NAAQS Modeling
BREEZE®, the market-leading air dispersion modeling software used by environmental professionals around the world, released a new version of its AERMOD air dispersion modeling software. This new version includes the updated 11353 U. S. EPA executable that addresses recently defined NAAQS standards, namely for NO2 and SO2 daily maximum concentrations. Streamline NO2, SO2, and PM2.5 modeling for U.S. NAAQS with Version 7.4 new features that: Integrate the U.S. EPA version 11353 released December 19,...
U.S. EPA issues permit to palmdale power plant, requires limits for greenhouse gas emissions / use of innovative solar technology results in one of the cleanest, most efficient fossil fuel plants in nation
The U.S. Environmental Protection Agency recently issued a permit to the City of Palmdale, Calif. for the construction and operation of the Palmdale Hybrid Power Project. The 570 megawatt natural gas-fired power plant, with 50 megawatts of solar energy generation, is the first of its kind in the nation required to limit greenhouse gas emissions. Commercial operation is planned for the summer of 2013. “Palmdale’s use of solar technology is a model for new electric power plants across the nation,”...
EPA: Allegan County in Michigan now meets smog standards (MI)
U.S. Environmental Protection Agency Region 5 announced today final approval of a request from the state of Michigan to redesignate Allegan County to attainment of the 1997 national health-based eight-hour outdoor standard for ozone (smog). The entire state of Michigan now meets the 1997 federal health-based standard for ozone. EPA said three years of complete, quality-assured, outdoor air monitoring data for 2007, 2008 and 2009 show that the area meets the standard. Preliminary 2010 data show that the area...
EPA Establishes New 1-hour Standard for Sulfur Dioxide
On June 2, 2010 the U.S. EPA established a new 1-hour primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2). The new 1-hour standard was set at the level of 75 parts per billion (ppb) calculated as the three-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations. With the establishment of the new 1-hour SO2 standard, the EPA also revoked the two previous primary standards of 140 ppb (24-hour standard), and 30 ppb (annual standard)...