DSHW-2010-052387 - 0901a068801e2cb0

NOTICE

The Executive Secretary of the Utah Solid and Hazardous Waste Control Board has issued the final draft of the Class 3 permit modification of the state-issued hazardous waste Part B permit
for the ATK Launch Systems Promontory Facility. The ATK Promontory Facility is located approximately 30 miles northwest of Brigham City, Utah. Since operations began in 1956, ATK and
its predecessors have been primarily involved in the production and testing of rocket motor propellants. This Part B Permit modification request would implement the following changes:
adds treatment of reactive hazardous waste by open burning or open detonation at two sites located at the facility; removes treatment of waste solid rocket motors by disassembly; adds
a new storage site for solid hazardous waste; adds and adjusts Closure Plans for the new and existing hazardous waste management units and modifies permit conditions as appropriate to
accommodate the proposed changes.

A 45-day public comment period will begin on August 4, 2010, when the public notice is published in the Herald Journal, the Standard Examiner, the Box Elder News Journal, the Salt Lake
Tribune and Deseret Morning News, and will end on September 17, 2010, at 6:00 p.m. In addition, a public hearing will be held to allow the public to make comments concerning this modification
request. The hearing will be held on September 9, 2010, from 6:00 p.m. to 7:00 p.m. in Room #3 at the Brigham City Public Library. The library is located at 26 East Forest Street,
Brigham City, Utah.

A copy of the final draft changes to Module II, General Facility Conditions, Module III, Storage in Containers, Module IV, Thermal Treatment of Energetic Wastes, Attachment II, Inspection
Schedules and Procedures, Attachment IV, Contingency Plan and Emergency Procedures, Attachment V, Closure Plans, and Attachment XI, Thermal Treatment Process Information is available
for review during the comment period during normal business hours of 7:00 a.m. to 6:00 p.m., Monday through Thursday and at other times with prior arrangement, at the Division of Solid
and Hazardous Waste, 2nd Floor, Multi-Agency State Office Building, 195 North 1950 West, Salt Lake City, Utah 84114. A copy of the final draft changes is also available for review during
normal business hours at the Brigham City Public Library at the location given above.

The public may also review the fact sheet for this permit modification and an unofficial copy of the draft Permit on-line at the Division’s web site:
(http://www.hazardouswaste.utah.gov/Public/PublicHearingsandCommentPeriods.htm)

Written comments must be received no later than 6:00 p.m. on September 17, 2010 and are to be addressed to:

Scott T. Anderson, Executive Secretary
Utah Solid and Hazardous Waste Control Board
P.O. Box 144880
Salt Lake City, Utah 84114-4880

Comments may be sent via electronic mail to [e-mail], and should be identified in the subject line by putting the following information “Comments on the ATK – Promontory Draft
Permit Modification.” All documents included in the comments should be submitted as ASCII (text) files or in PDF format.

Any questions concerning this Class 3 permit modification should be directed to Jeff Vandel, Utah Division of Solid and Hazardous Waste, 801-536-0200. In compliance with the Americans
with Disabilities Act, individuals with special needs (including auxiliary communicative aids and services) should contact Brooke Baker, Office of Human Resources at [phone] (TDD
[phone]).

Note:

Notice to be published in the Salt Lake Tribune, Deseret Morning News, Box Elder News Journal, the Herald Journal and the Ogden Standard Examiner on Wednesday, August 4, 2010.

195 North 1950 West • Salt Lake City, UT
Mailing Address: P.O. Box 144880 • Salt Lake City, UT 84114-4880
Telephone [phone] • Fax [phone] • T.D.D. [phone]
www.deq.utah.gov
TN201000612 Printed on 100% recycled paper

State of Utah

GARY HERBERT
Governor

GREG BELL
Lieutenant Governor

Department of Environmental Quality

Amanda Smith
Executive Director

DIVISION OF SOLID AND HAZARDOUS WASTE
Scott T. Anderson
Director