|May, 2006, Vol 9, No 2|
Oklahoma has joined the newly formed Blue Skyways Collaborative in the mission to significantly reduce diesel emissions and conserve energy in a large part of the central United States. The collaborative is a partnership coordinated by EPA Regions 6 and 7, and the non-profit Central States Air Resource Agencies (CenSARA). Participants include CenSARA’s nine member states (Minnesota, Iowa, Nebraska, Missouri, Kansas, Oklahoma, Arkansas, Louisiana and Texas), Canada, Mexico, numerous federal, state and local government agencies, non-profit and private industry groups.
On April 20, the 5th annual ScienceFest took place at the Oklahoma City Zoo. It was a day of interactive science and environmental activities involving 4,500 fourth and fifth grade students from across the state. These students represented over 90 different schools or homeschools and 260 teachers. ScienceFest was designed to promote scientific interest and exposed students to science in a fun and different setting. Twenty agencies and organizations participated with activity stations this year.
The event was comprised of 23 activity stations and a Fins and Feathers Show for the classes to attend. Fins and Feathers was specially scripted to accomplish the ScienceFest mission. The activity stations hosted groups of students and presented instruction and information on their specific topic. Activity stations represented many disciplines of science including recycling, energy, and pollution. DEQ hosted five activity stations, two on the topic of air quality, two on the topic of water quality, and one about the benefits of composting. Examples of alternative fueled vehicles were also on location for the students to view. One teacher stated, “I had my students tell me what they learned after leaving each station. Their excitement was contagious. I wish you could have been on the bus on the return trip to school as the students compared what they each had seen.”
ScienceFest 2006 was sponsored by DEQ, OGE Energy Corp, Department of Commerce, and the Office of the Secretary of the Environment. The event was planned by a steering committee including DEQ, OGE Energy Corp, Conservation Commission, Tinker AFB, Department of Tourism and Recreation, Indian Nations Council of Governments, Oklahoma Climatological Survey, OKC Zoo, Department of Education, Department of Commerce, and the Office of the Secretary of the Environment.
With the assistance of many hard-working volunteers, the logistics of the event were smooth. Nearly 6,000 people were fed in a short two hours. In addition, the efficiency of the day allowed the students to flow easily from activity to activity. The classes had the opportunity for a wonderful day of education. After five years of modifications and improvements, this was the best ScienceFest yet.
AP-42 Emission Factor Updates
Currently, EPA lists six sections as under review. Four of the sections deal with fugitive dust: Sections 13.2.1-Paved Roads, 13.2.2-Unpaved Roads, 13.2.4-Aggregate Handling and Storage Piles, and 13.2.5-Industrial Wind Erosion. Comments on all four are due by June 16, 2006.
EPA Extends Comment Period
The proposed federal rule “Lead, Renovation, Repair and Painting Program” was published in the Federal Register on January 10, 2006. On March 31, 2006 the Environmental Protection Agency extended the comment period until May 25, 2006. EPA has prepared a paper, “Renovation, Repair and Painting Proposal; Points to Consider” that is available at http://www.epa.gov/lead/pubs/rrp_points.pdf. Comments may be submitted electronically at http://www.regulations.gov.
Recently, more and more permit applications are being submitted for synthetic minor facilities using lean-burn engines. The estimated amount of formaldehyde emissions from these types of engines is 0.2 to 0.3 grams per horsepower hour (g/hp-hr) depending on the engine’s manufacturer, make, and model. After the installation of two or three lean-burn engines, oxidation catalysts must be used to ensure that the facility will remain a minor source of Hazardous Air Pollutants (HAP). More lean-burn engines are also being installed at major sources. In order for these Part 70 sources to remain minor sources of HAP, oxidation catalysts again must be used.
For example, a company requests a construction permit for a new facility that will have two 1,340 horsepower (hp) Caterpillar G3516LE engines. For this facility, potential emissions of formaldehyde at a manufacturer’s emissions factor of 0.3 g/hp-hr will be 7.8 tons per year (TPY). However, if the facility wanted to install another 1,340-hp Caterpillar G3516LE engine, potential emissions of formaldehyde would be 11.6 TPY, and to remain a minor facility, the facility would either need to install an oxidation catalyst on one of the engines or limit the hours of operation of the engines. The facility also has the option of conducting EPA reference method testing to get site-specific engine emission factors that may be lower than the manufacturer’s guarantees.
IMPORTANT: In order to be enforceable, a reduction in allowable CO emissions must be established along with a specific condition requiring the oxidation catalyst. Afterward, periodic testing can be used to assured that the catalyst is working properly.
The Air Quality Advisory Council held its April 19 meeting at Oklahoma State University in Tulsa. The Council voted to forward to the Environmental Quality Board (EQB) in August new rules in Subchapter 8 for the implementation of the Best Available Retrofit Technology (BART), which is a part of the Regional Haze State Implementation Plan. An update to the incorporations by reference for commercial and industrial solid waste incineration (CISWI) units in Subchapter 17 was also forwarded to the August EQB meeting.
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