Joe Foutz March 27, 2012 – Hickory, NC

Division of Air Quality March 29, 2012 – Raleigh, NCMooresville Regional Office

While investigating the De-Delegation of Subpart 4Z, DAQ has :

Inserted “Place Holder” Language in the Air Permit for Area Sources

NC DAQ continues to incorporate NSPS IIII and JJJJ into Air Permits and ensure facility compliance.

During site visits, NC DAQ Inspectors should be identifying RICE sources

NC DAQ continues to stay up-to-date on EPA activities on Subpart 4Z.

Good News: NC DAQ accepted authority to ensure compliance with Subpart 4Z

Bad News: NC DAQ accepted authority to ensure compliance with Subpart 4Z

Estimated Number of Existing Engines Potentially Subject to 4Z

Engine Type Size Number of Engines at Permitted Facilities

Percent of Engines Located at Area Sources

Existing Non-Emergency Engines

Compression Ignition (CI)

> 300 hp 344 82% ≤ 300 hp 606 58%

Spark Ignition (SI)

> 500 hp 64 31% ≤ 500 hp 67 54%

Existing Emergency and Other Engines

all sizes 1,423 52%

Grand Total

2,504 57%

1) Survey Forms

1) Survey Forms

2) Administrative Permit Amendment for Non-TV 300 HP < Existing Non-Emergency CI < 500 HP Existing Non-Emergency CI > 500 HP

3) CI and SI Engines at TV Informational Letter / DAQ Website

4) Engines with Work Practice Requirements Area Source : Emergency and CI and SI < 300 HP

Major Source : Emergency and CI and SI < 100 HP

Existing Non-Emergency CI > 300 HP at Area Sources

Submit Protocol DAQ will be developing a sample

DAQ Observation Facility Required to Notify DAQ prior to Test DAQ not required to attend the test

Submit Results

Contact : Joe Foutz704-235-2225Joe.Foutz@ncdenr.gov

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