New Nitrogen Dioxide Ambient Air Quality Standard Could Pose Challenges
Posted: February 26th, 2010
In the more than 200 air quality modeling analyses that ALL4 meteorologists have conducted, demonstrating compliance with the annual nitrogen dioxide (NO2) National Ambient Air Quality Standard (NAAQS) of 53 parts per billion (ppbv) has rarely been an issue. The […]
Read articlePennsylvania Proposes to Adopt Effluent Standards for New High TDS Wastewater Discharges
Posted: February 21st, 2010
The Pennsylvania Department of Environmental Protection (PADEP) is proposing to amend 25 Pa. Code Chapter 95 (relating to Wastewater Treatment Requirements) to establish new effluent standards for new sources of wastewaters containing high Total Dissolved Solids (TDS) concentrations. The Environmental […]
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The GHG Monitoring Plan Due Date is Approaching. Will You Be Ready?
Posted: February 4th, 2010
U.S. EPA’s Greenhouse Gas Mandatory Reporting Rule (GHG MMR) codified at 40 CFR Part 98 requires that facilities subject to the rule have a complete written GHG Monitoring Plan by April 1, 2010. At a minimum, a GHG Monitoring Plan […]
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U.S. EPA Proposes Revisions to Ozone NAAQS
Posted: January 18th, 2010
In May 2008, states, environmental groups, and industry groups filed petitions with the D.C. Circuit Court of Appeals (Court) for review of the 2008 ozone standards. In March 2009, the Court granted a U.S. EPA request to stay the litigation […]
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U.S. EPA Proposes Revisions to Ambient Lead Monitoring Network
Posted: January 4th, 2010
On October 15, 2008, U.S. EPA revised the National Ambient Air Quality Standards (NAAQS) for lead from 1.5 micrograms per cubic meter (µg/m3) to 0.15 µg/m3, measured as total suspended particles (TSP). In January 2009, U.S. EPA received a petition […]
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What were the “Hot” Topics at the December 1 – 2, 2009 U.S. EPA/AWMA Information Exchange?
Posted: December 6th, 2009
ALL4 Senior Consultant Roy Rakiewicz attended the annual Air and Waste Management Association (AWMA)/ U.S. EPA Information Exchange that was held at Research Triangle Park, NC on December 1 and 2, 2009. The primary topics that were addressed during this […]
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U.S. EPA Proposes 1-hour National Ambient Air Quality Standard for Sulfur Dioxide
Posted: November 27th, 2009
On November 17, 2009, U.S EPA announced that they were proposing to establish a new 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) between 50 and 100 parts per billion by volume (ppbv) (i.e., approximately 130 to 260 […]
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PADEP Provides Technical Guidance on Waste Derived Liquid Fuels
Posted: November 16th, 2009
The Pennsylvania Department of Environmental Protection (PADEP) has finalized revisions to Technical Guidance Document No. 275-2101-009 regarding Waste Derived Liquid Fuels (WDLFs). The requirements in the technical guidance document are for guidance purposes only and are not meant to be […]
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U.S. EPA Establishes Startup/Shutdown Standards Under Subpart VVVVVV
Posted: November 10th, 2009
On October 29, U.S. EPA issued National Emission Standards for Hazardous Air Pollutants (NESHAP) for nine (9) area source categories in the chemical manufacturing sector as a single, combined subpart under 40 CFR Part 63, Subpart VVVVVV. The specific categories […]
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Should You Throw Your SSM Plan Out the Window Now That the DC Circuit Has Issued Their Mandate Vacat
Posted: November 4th, 2009
On October 16, 2009, the United States Court of Appeals for the District of Columbia Circuit (the Court) issued its mandate vacating the Startup, Shutdown, and Malfunction (SSM) exemption provisions of 40 CFR §§63.6(f)(1) and (h)(1). The Court issued its original […]
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