All4 Inc.

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All4 Inc. Articles

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  • 2016 ALL4 Look Ahead

    2016 ALL4 Look Ahead

    As we do each year, ALL4 looks ahead to the upcoming new year and evaluates the air quality regulatory topics that may matter most to the regulated community. For 2016, it certainly will be the year of Boiler MACT, as facilities gear up to prepare ...

    Atkins, Barber, Dix, Egan, Harding, Kleinle, Kroos, Leone, Rakiewicz, Sadler, Swisher, Turney, Uhler, Wenclawiak

  • The Eight (8) “Ws” of RACT 2 – Who, What, When, Why, Where, In What Way, and By What Means

    The Eight (8) “Ws” of RACT 2 – Who, What, When, Why, Where, In What Way, and By What Means

    The revised Final-Form Reasonably Available Control Technology (RACT) 2 Rule was approved by the Pennsylvania Environmental Quality Board (EQB) on November 17, 2015.  It’s now in the last administrative stages on its way to being ...

    Ron Harding

  • Ethylene Production – A Tale of Explosive Growth and Air Quality Compliance

    Ethylene Production – A Tale of Explosive Growth and Air Quality Compliance

    ALL4’s Oil and Gas Sector Initiative was conceived in response to the renewal of the domestic oil and gas industry, associated primarily with the use of hydraulic fracturing (or fracking) and horizontal drilling in shale formations ...

    Kristin Gordon;Mark Wenclawiak

  • A Review of 1-Hour NO2 NAAQS Air Quality Modeling

    A Review of 1-Hour NO2 NAAQS Air Quality Modeling

    During the development of this 4TR article, proposed revisions to Appendix W to 40 CFR Part 51 – Guideline on Air Quality Models (Guideline) were published in the Federal Register. As a result of revisions which propose to establish Tier ...

    Dan Dix

  • Proposed Revisions to the Guideline on Air Quality Models (Appendix W)

    Proposed Revisions to the Guideline on Air Quality Models (Appendix W)

    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 ...

    Dan Dix

  • PADEP Transition from CAIR to CSAPR

    PADEP Transition from CAIR to CSAPR

    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).   ...

    John Slade

  • National Ambient Air Quality Standards Update

    National Ambient Air Quality Standards Update

    You have seen ALL4 documenting the corresponding evolution of the NAAQS levels since the current U.S. EPA administration started in January 2009, and we will continue to follow them closely and provide you with updates that we think are important to ...

    Colin McCall

  • New Mandatory GHG Reporting for the Oil and Gas Industry

    New Mandatory GHG Reporting for the Oil and Gas Industry

    On January 14, 2015, the Obama Administration announced an update to its March 2014 “Strategy to Reduce Methane Emissions from the Oil and Gas Sector” (Strategy).  Within this announcement it was revealed that the Administration ...

    Megan Uhler

  • Crude Oil and Natural Gas Industry Reduced Emission Completion NSPS Requirements

    Crude Oil and Natural Gas Industry Reduced Emission Completion NSPS Requirements

    As 2015 quickly approaches, there is still momentum in the development of domestic unconventional oil and gas resources.  Therefore, exploration and production companies utilizing hydraulic fracturing are reminded that the final compliance ...

    Meghan Barber;JP kleinle

  • The Reality and Implications of SSM and NESHAPs

    The Reality and Implications of SSM and NESHAPs

    In this edition of ALL4`s 4 The Record newsletter, The Reality and Implications of SSM and NESHAPs, Roy R., Eric S., and Mark W. discuss the recent changes to the National Emission Standards for Hazardous Air Pollutants (NESHAP) rule and how that ...

    Roy Rakiewicz;Eric Swisher;Mark Wenclawiak

  • Major Changes to the Risk Management Program Regulations

    Major Changes to the Risk Management Program Regulations

    On July 31, 2014, the U.S. Environmental Protection Agency (U.S. EPA) published potential revisions to the Risk Management Program (RMP) regulations, which are codified at 40 CFR Part 68.  U.S. EPA issued a Request for Information (RFI) to ...

    Susie Bowden

  • U.S. EPA`s Proposed Greenhouse Gas Standards for the Utility Industry - How Powerful Are They?

    U.S. EPA`s Proposed Greenhouse Gas Standards for the Utility Industry - How Powerful Are They?

    A major event in the Climate Change arena occurred on March 27, 2012 when, for the first time, U.S. EPA proposed Standards of Performance for New Stationary Sources (NSPS) for emissions of carbon dioxide (CO2).  The proposed standards were ...

    Megan Uhler

  • Risk Assessment: Refinery MACT 1 and 2

    Risk Assessment: Refinery MACT 1 and 2

    Section 112(f)(2) of the Clean Air Act (CAA) requires the U.S. EPA to determine for source categories subject to Maximum Achievable Control Technology (MACT) standards whether the emission standards provide an ample margin of safety to protect ...

    John Slade

  • U.S. EPA Proposes Overdue Refinery Air Rules

    U.S. EPA Proposes Overdue Refinery Air Rules

    U.S. EPA officially published revisions to the Maximum Achievable Control Technology (MACT) and New Source Performance Standards (NSPS) Refinery Air Rules (i.e., 40 CFR Part 60 Subparts J and Ja, and 40 CFR Part 63 Subparts CC and UUU, ...

    Kristin Gordon

  • U.S. EPA Proposed Benzene Fenceline Monitoring for Refineries Amongst Other MACT and NSPS Changes

    U.S. EPA Proposed Benzene Fenceline Monitoring for Refineries Amongst Other MACT and NSPS Changes

    U.S. EPA has proposed an amendment to 40 CFR Parts 63, Subpart CC and Subpart UUU that requires all petroleum refineries to deploy passive time-integrated benzene samplers at the fenceline (where fenceline is equivalent to the facility property ...

    Amanda DePasquale;Dan Dix;Dan Holland

  • Boiler MACT Remand Request Granted

    Boiler MACT Remand Request Granted

    On February 28, 2014, U.S. Environmental Protection Agency (U.S. EPA) requested a remand without vacatur of the set of rules commonly referred to as the Boiler Maximum Achievable Control Technology (MACT) rules. U.S. EPA has also requested a remand ...

    Susie Bowden

  • Where Did These New Quality Assurance Requirements for Opacity Monitors Come From?

    Where Did These New Quality Assurance Requirements for Opacity Monitors Come From?

    U.S. EPA promulgated the long awaited ‘‘Quality Assurance Requirements for Continuous Opacity Monitoring Systems at Stationary Sources’’ used to demonstrate continuous compliance with opacity standards specified in new source ...

    Eric Swisher

  • Affirmative Defense is Vacated for the Cement Industry

    Affirmative Defense is Vacated for the Cement Industry

    I wrote a blog back in February that was intended to raise the awareness level of the cement industry regarding new requirements for their MACT operations and maintenance (O&M) plans.  As part of addressing action items related to ...

    JP kleinle

  • ALL4 Air Quality Modeling Update

    ALL4 Air Quality Modeling Update

    As it’s been over a year since my last air quality modeling-related 4TR article, I thought it appropriate to provide a general status report on the air quality modeling updates that have occurred over the last year.  There are a ...

  • SO2 NAAQS Implementation: The Great American Update

    SO2 NAAQS Implementation: The Great American Update

    Since the 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) became effective in August 2010, ALL4 has been tracking it every step of the way.  Its implementation has proven to be chaotic at times and quiet at others. ...

    Colin McCall