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

Division of NAME

Published: May 30, 2021
Comments Due: July 14, 2021

Notice is hereby given that Croda Inc. having a facility at 315 Cherry Lane, New Castle, New Castle County, Delaware, 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. 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.

The application, the “draft” construction permit, all materials that the applicant has submitted (other than those granted confidential treatment under DNREC rules), and a copy of summary of other materials, if any, considered in preparing the “draft/proposed” permit may be reviewed upon request. The application is posted at To submit comments, for additional information or for information regarding how you can inspect the application, please contact Tracy Mattson at (302) 739‑9402.

Public Hearing

A virtual public hearing (Docket# 2021-P-A-0014) will be held on the application on Tuesday, June 29, 2021, beginning at 6 pm.

The web link to the virtual hearing is found on the DNREC Public Hearings site at If prompted for a password, please use CRODA. To access the audio-only portion of the virtual hearing, dial 1-408-418-9388 and enter event code 173 792 2610. Closed-captioning is available by request if made at least 7 days before the event.

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.

To submit comments pertaining to the above matter please email, use the online form at or send by U.S. mail to the following address:

Lisa A. Vest, Hearing Officer
Office of the Secretary
Department of Natural Resources and Environmental Control
89 Kings Highway
Dover, DE 19901

The Department will accept public comment through the close of business on Wednesday, July 14, 2021.