Public Hearing: Croda Inc. Federally Enforceable 7 DE Admin. Code 1102 Application

Date & Time:
Tuesday, June 29, 2021
6:00 pm


, Delaware

The Division of Air Quality will conduct a public hearing (Docket #2021-P-A-0014) on an application by Croda Inc. for a federally enforceable 7 DE Admin. Code 1102 construction permit for its facility at 315 Cherry Lane, New Castle. Public comment period open through July 14, 2021.

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Croda Inc. has requested a federally enforceable 7 DE Admin. Code 1102 construction permit [Permit: APC-2016/0068-CONSTRUCTION (Amendment 4) (NSPS) (MACT) (VOC RACT) (MNSR) (FE)] for modification of a 30,000 ton per year (TPY) ethylene oxide (EO) plant at 315 Cherry Lane, New Castle.

Modifications to the permit, in accordance with the permit application and Settlement Agreement of February 26, 2021, will include:

  • Emissions from the Drying Column Hotwell will be rerouted, and no longer emitted. All references to the Hotwell will be removed from the permit.
  • Emissions limits from the Vent scrubber will remained unchanged, however the percent VOC reduction shall increase from 95% to 99%, and the scrubber shall be operated within parameters set by performance testing.
  • Emissions from the Ethanol Dehydration Furnace (EDF) shall be increased due to an error in the current permit as follows: CO from 0.46 lb/hr and 2.0 tpy to 1.0 lb/hr and 4.5 tpy, NOX from 0.33 lb/hr and 1.4 tpy to 0.74 lb/hr and 3.2 tpy, SO2 from 0.014 tpy to 0.0073 lb/hr and 0.29 tpy, VOC from 1.0 lb/hr and 4.5 tpy to 1.3 lb/hr and 5.7 tpy, and PM10 from 0.04 lb/hr and 0.18 tpy to 0.093 lb/hr and 0.41 tpy.

Upon completion of construction, the Department will incorporate the operating conditions and limits of the 7 DE Admin. Code 1102 Construction permit into the facility’s existing Title V permit (Permit: AQM-003/00058) via an Administrative Amendment.

For additional information, or for information regarding how you can inspect the application, please contact Tracy Mattson at (302) 739‑9402.

Those wishing to offer verbal comments during DNREC virtual public hearings must pre-register no later than noon on the date of the virtual hearing at or by telephone at 302-739-9295.

Written comments will be accepted through close of business on Wednesday, July 14, 2021, by email to, using the online form at, or by U.S. mail to the address below.

Docket #2021-P-A-0014

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Public Hearing Officer

Lisa Vest
DNREC Office of the Secretary
89 Kings Highway
Dover, DE 19901

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