4 The Record is a publication from ALL4’s team that takes an in-depth look at technical and regulatory topics.
Proposed Revisions to the Guideline on Air Quality Models (Appendix W)
Posted: July 27th, 2015
On July 14, 2015, the U.S. Environmental Protection Agency’s (U.S. EPA’s) Office of Air Quality Planning and Standards’ (OAQPS) Air Quality Modeling Group provided a pre-Federal Register (FR) publication of the proposed revisions to the Guideline on Air Quality Models (Appendix […]
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Finalized PC MACT Amendments and Performance Specification 18
Posted: July 27th, 2015
On July 1, 2015, the U.S. Environmental Protection Agency (U.S. EPA) finalized the proposed amendments to 40 CFR Part 63, Subpart LLL – National Emissions Standards for Hazardous Air Pollutants (NESHAP) for the Portland Cement Manufacturing Industry, which establishes…
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If It is June, It Must Be a NCASI Boiler MACT Session
Posted: July 10th, 2015
Each June, ALL4’s Atlanta, Georgia office participates in the National Council for Air and Stream Improvement’s (NCASI’s) Southern Regional Meeting. This annual rite of summer allows ALL4 to reconnect with our pulp and paper and wood products sector clients and regulatory contacts…
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U.S. EPA Approves Pennsylvania’s VOC Control SIP Revisions
Posted: June 29th, 2015
On June 25, 2015, the U.S. Environmental Protection Agency (U.S. EPA) approved a State Implementation Plan (SIP) revision originally submitted by the Pennsylvania Department of Environmental Protection (PADEP) on August 27, 2014…
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Getting Smart with Meteorological Towers
Posted: June 25th, 2015
Working at ALL4 and having the opportunity to deploy and maintain meteorological towers is a meteorologist’s dream. During my first week at ALL4, I was deployed into the field of western Virginia to perform a meteorological audit of instruments on a 30 meter…
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PADEP Transition from CAIR to CSAPR
Posted: June 24th, 2015
As of January 1, 2015 the U.S. Environmental Protection Agency (U.S. EPA) has been implementing the Cross-State Air Pollution Rule (CSAPR) through a Federal Implementation Plan (FIP) that primarily impacts electric generating units (EGUs). The transition from the Clean Air […]
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Changes to the Georgia Emissions Inventory System
Posted: June 22nd, 2015
Facilities in Georgia with Title V permits are required to submit emissions inventory data each year. Beginning with this year’s report (which covers calendar year 2014 emissions), the reporting applicability thresholds have changed. Facilities should have received a notice…
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Upcoming Refinery Flare Requirements for 40 CFR Part 60 Subpart Ja
Posted: June 12th, 2015
On June 1, 2012, U.S. EPA Administrator Lisa Jackson signed a notice issuing final amendments for 40 CFR Part 60 Subpart Ja, Standards of Performance for Petroleum Refineries for Which Construction, Reconstruction, or Modification Commenced After May…
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Nonhazardous Secondary Materials Rule (NHSM) Update: Court Says No…To Everyone
Posted: June 12th, 2015
On June 3, 2015, the U.S. Court of Appeals for the District of Columbia Circuit issued a per curiam judgment rejecting challenges to U.S. EPA’s Nonhazardous Secondary Materials (NHSM) Rule from petitioners representing both environmentalists and industrial…
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Pennsylvania RACT 2 – We Are Not There Yet…
Posted: June 8th, 2015
ALL4 attended the Pennsylvania Chamber of Business and Industry (PA Chamber) Quarterly Pennsylvania Department of Environmental Protection (PADEP) Regulatory Update at the Harrisburg University of Science and Technology on May 27, 2015. During the regulatory…
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