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MIRATECH Solutions Guide

MIRATECH is the expert in providing fully integrated, proven exhaust compliance solutions for anyone using industrial engines in a Power Generation, Gas Compression and Mechanical Drives.

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Applications

  1. Gas Compression
  2. Power Generation
  3. Rail
  4. NESHAP Regulations
  5. Industrial
  6. Air Compression
  7. Liquids Pumping
  8. Bio-Gas
  9. Greenhouse CO2 Enrichment
  10. Industrial Marine

Engine Type

  1. Bi-Fuel Diesel and Natural Gas
  2. Diesel
  3. Natural Gas Lean Burn
  4. Natural Gas Rich Burn

Noise Control

  1. Yes
  2. No

Engine Size

  1. 20 to 200 hp
  2. 200 to 1350 hp
  3. 1350 to 10,000 hp
  4. 10,000 hp and above

Regulated Pollutants

  1. NOx
  2. NO2
  3. CO
  4. VOC (NMNEHC)
  5. HAP's
  6. Particulate Matter (PM)
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Update to EPA policy on “Common Control” for major source determinations.

August 29, 2018

In order to determine whether equipment and processes that emit air pollutants are part of a major source for purposes of air permitting, companies must apply a three-factor test according to a July 16, 2018 report from Trinity Consultants. Emission units which meet all of the following criteria are aggregated:

  • Belong to the same industrial grouping (SIC Code)
  • Are contiguous or adjacent; and
  • Are under common control.

The interpretation of the third criteria, “common control,” has varied over time and among different jurisdictions. In some cases, agencies found common control because economic or operational interconnectedness was deemed to establish a support/dependency relationship between facilities.

A recent letter from US EPA Assistant Administrator William Wehrum reevaluates this issue. In it, EPA asserts that the assessment of “control” should focus on the “power or authority of one entity to dictate decisions of the other that could affect the applicability of, or compliance with, relevant air pollution regulatory requirements.” The letter also makes it clear that state and local authorities with approved permit programs have the primary responsibility to make source determinations.

The letter is available here on the EPA’s website.

What this means to you
The interpretation of “common control” in Major Source determination has varied over time and among different jurisdictions. A recent letter from US EPA Assistant Administrator William Wehrum reevaluates this issue. In it, EPA asserts that the assessment of “control” should focus on the “power or authority of one entity to dictate decisions of the other.

MIRATECH can help
Contact MIRATECH for help controlling emissions in stationary engines.