On November 20, 2019, the United States Environmental Protection Agency (USEPA) finalized revisions to AP-42 Chapter 7, Section 7.1 – Organic Liquid Storage Tanks, which provides approved emission estimating methodologies for storage tanks. Additional revisions were incorporated in March 2020. The methodologies include emission estimates for working and breathing (standing) losses, but not for flashing losses. The revisions include:

 

• Updated meteorological data.
• Replaced equations historically used to obtain approximate values with more accurate equations.
• Addition of methodology for estimating losses from tank cleaning.
• Working loss emission calculations based on changes in liquid level rather than throughput.
• Revised the tank condition and color inputs and updated associated equations.
• Addition of separate calculations for uninsulated, partially insulated, or fully insulated tanks.

 

The EPA TANKS 4.09d emissions estimation software program has now become obsolete. This program has not been supported by USEPA for several years, it is known to have errors, and it does not include the recent changes to AP-42 Chapter 7. As of April 9, 2020, the Oklahoma Department of Environmental Quality (ODEQ) has requested that applicants discontinue the use of TANKS 4.09d for all air permit application submissions.

 

The AP-42 Chapter 7, Section 7.1 methodology revisions may result in increased or decreased emission estimates depending on the type of tank and operating scenario at the individual facility. It is expected that most emission estimates will remain close to the previously estimated values, however it is possible to have significant changes which may need to be discussed with the regulatory agency.

 

For more information and assistance in this regard please contact A & M Engineering and Environmental Services, Inc. (A & M).

 

A & M Engineering and Environmental Services, Inc. (A & M) is pleased to announce the approval of its U.S. Small Business Administration All Small Mentor-Protégé relationship with Mead & Hunt. This program exists to strengthen the Architecture, Engineering and Construction industry through mentorship. The mentor enhances the development of the protégé through various forms of assistance, which increases contracting opportunity, experience and overall financial viability for the protégé.

According to Tolga M. Ertugrul, PE, President of A & M, “We are honored to be protégé to Mead & Hunt, and are excited for the opportunities this mentorship relationship will afford, not only in terms of bettering our firm, but also in potential future opportunities under a Joint-Venture.”

Mead & Hunt is an employee-owned consulting firm and remains strong on ENR’s Top 500 design firm list with a national ranking of 119th in 2019. The firm employs nearly 900 employees from 30+ offices nationwide. They were named by Zweig Group as one of the Best Firms to Work For, and by CE News one of the top 10 engineering companies to work for in the nation.

Founded in 1984, A & M is a HUBZone-certified small business located in Tulsa, OK. The company is a diverse firm offering turnkey compliance, consulting, engineering, design, construction, and remediation services to the private sector, governmental agencies, and Native American tribes.

A & M Selected As Preferred Contractor By The City of Tulsa, Oklahoma (July 27, 2018) – We are excited to be selected by the City of Tulsa, Oklahoma as one of their preferred contractors for providing Professional Engineering Services for Citywide Environmental Inspections, Testing, Design, and Cleanup Projects. Potential services to be provided include Due Diligence,  NEPA, SWP3s, Leaking Underground Storage Tank Investigations, Asbestos Surveys, Land Surveys, Geotechnical Services, Alternative Analyses, Plan Development, Bid Documents, Bid Assistance, and Construction Oversight.