Class 2 permit modification (Basin F)

The U.S. Army is applying for a Class 2 permit modification to Rocky Mountain Arsenal’s Basin F Post-Closure Plan. For info, see CDPHE and below:

This is a public notice that the U.S. Army is applying for a Class 2 permit modification to the Basin F Post-Closure at Rocky Mountain Arsenal.

Public comment period: April 27, 2023 through May 26, 2023

Written comments should be directed to Susan Newton, Project Manager CDPHE HMWMD 4300 Cherry Creek Drive South, Denver, CO 80246 (susan dot newton at state dot co dot us).

The draft hazardous waste permit modification and supporting documents are available for review on our website: https://cdphe.colorado.gov/HMWMD-public-notices

** A public meeting to discuss this permit modification request may be scheduled upon citizen inquiry or request for a meeting.
Inquiries regarding this facility should be directed to:

Venissa Ledesma, CDPHE, Marketing and Communications Specialist at 303-692-3432 or venissa dot ledesma at state dot co dot us
or
Patty Lee, U.S Army at 303-298-0300 or patty dot l dot lee6 at civ dot mail dot mil.

The permittee’s compliance history during the life of the post-closure plan is available from Ms. Susan Newton of the Colorado Department of Public Health and Environment.

The U.S. Army manages the Rocky Mountain Arsenal Basin F Former Surface Impoundment and former Basin F Wastepile, collectively referred to as Basin F, that contains hazardous waste from the former Rocky Mountain Arsenal site. Basin F is currently managed under a Post-Closure Plan that was approved by the Colorado Department of Public Health and Environment on July 2, 2009.

The U.S. Army is applying for the following Class 2 permit modification to the Rocky Mountain Arsenal Basin F Post-Closure Plan Rev. 2, April 10, 2023.

This modification includes updates to the inspection and sampling frequencies for the Basin F Cover that are based upon best management practices developed from experience gained over 10 years of managing the site. This proposed modification also includes numerous editorial updates.

Procedures for reaching a final decision:
The public is obligated to raise all reasonably ascertainable issues regarding any condition in the draft permit modification during the public comment period as required by 6 CCR 1007-3, Section 100.509. In accordance with 6 CCR 1007-3, Section 100.61, only those portions of the permit subject to the modification are reopened for public comment. FAILURE TO RAISE AN ISSUE OR PROVIDE INFORMATION DURING THE PUBLIC COMMENT PERIOD MAY PREVENT YOU FROM RAISING THAT ISSUE OR SUBMITTING SUCH INFORMATION IN AN APPEAL OF THE DEPARTMENT’S FINAL DECISION. ONLY MATTERS RAISED DURING THE PUBLIC COMMENT PERIOD MAY BE CONTESTED IN ANY APPEAL OF THE PERMIT (SECTION 6 CCR 1007-3, SECTION 100.506 (D)(1)(VI)).
The Division will consider all comments on the draft permit prior to making a final decision on it. Following the public comment period, the Division will issue a final decision and a response to comments in accordance with 6 CCR 1007-3, Sections 100.511-512.