Notice has been given that:

Messer, LLC requests a natural minor permit to operate their existing Air Separation and Purification Plant which consists of the following existing equipment: a Cryoquip Twin-Burner Water Bath Vaporizer (2 x 30 mmBTU/hr), a Thermax Water Bath Vaporizer (2 x 8 mmBTU/hr), a Pre-purification Regeneration Heater (6.2 mmBTU/hr), and an Emergency Generator (3.1 mmBTU/hr) at their 6000 Philadelphia Pike, Claymont, Delaware facility.  The facility is requesting classification as a natural minor source due to various process unit shutdowns and equipment removal, which results in a reduction of their Potential to Emit of NO_X to below the major source threshold.  The total estimated emissions from the above-mentioned equipment are 22.40 TPY NO_X, 2.01 TPY VOCs, 0.65 TPY HAPS, 0.43 TPY SO_X, 30.39  TPY CO, 2.92  TPY PM_2.5, and 2.92 TPY PM₁₀, and will be permitted by Permits# APC-2020/0015-CONSTRUCTION/OPERATION, Permit# APC-2020/0016-CONSTRUCTION/OPERATION, Permit# APC-2020/0017-CONSTRUCTION/OPERATION, Permit# APC-2020/0018-CONSTRUCTION/OPERATION.

The applications for these permits may be reviewed at the offices of the Division of Air Quality, State Street Commons, 100 W. Water Street, Suite 6A, Dover, Delaware or 715 Grantham Lane, New Castle, Delaware.  For additional information or for an appointment to review the application, please contact Tracy Mattson at (302) 739‑9402.

A public hearing on any of the above applications will NOT be held unless the Secretary of DNREC receives a request for a hearing regarding that application within 15 days from the date of this notice, ending November 4, 2019.  A request for a hearing shall be in writing.  The request must also show a familiarity with the application and a reasoned statement of the permit’s probable impact.

All comments and public hearing requests should be mailed to the following address:

Division of Air Quality
State Street Commons, Suite 6A
100 W. Water Street, Dover 19904
302-739-9402