General Information

Government Type

State Agency

Entity

Department of Environmental Quality

Public Body

Division of Water Quality

Notice Information

Add Notice to Calendar

Notice Title

Public Notice - Kennecott Utah Copper, LLC

Notice Tags

Water Quality

Notice Type(s)

Notice

Event Start Date & Time

February 15, 2022 08:00 AM

Event End Date & Time

March 16, 2022 05:00 PM

Description/Agenda

DIVISION OF WATER QUALITY UTAH DEPARTMENT OF ENVIRONMENTAL QUALITY PUBLIC NOTICE RENEWAL OF A UPDES PERMIT PURPOSE OF PUBLIC NOTICE The purpose of this public notice is to declare the State of Utah's intention to renew and modify a Utah Pollution Discharge Elimination System (UPDES) Permit under authority of the Utah Water Quality Act, Utah Code Sections 19-5-104(9) and 107(2). Said 'permit' refers to the UPDES Permit and the Fact Sheet Statement of Basis (including Total Maximum Daily Loads (TMDL's)) if applicable, as per Section 303(d) of the Federal Clean Water Act (CWA). PERMIT INFORMATION PERMITTEE NAME: KENNECOTT UTAH COPPER LLC MAILING ADDRESS 4700 Daybreak Parkway South Jordan, UT 84009 TELEPHONE NUMBER: 801.204.3501 FACILITY LOCATION: 4700 Daybreak Parkway South Jordan, UT 84009 UPDES PERMIT NO.: UT0000051; UTL0000051 PERMITTED OUTFALLS: 012, 002, 004, 007, 008, 009, 010, 011, 104 RECEIVING WATERS: Great Salt Lake and C-7 ditch to Lee Creek BACKGROUND Kennecott Utah Copper LLC (Kennecott) operates an integrated mining and mineral processing facility that includes an open pit copper mine with some underground development, waste rock disposal areas, water collection system, copper cementation plant, concentrator, smelter, refinery, power plant, reverse osmosis (RO) groundwater treatment plant, sewage treatment plant, and a tailings impoundment. This Permit renewal covers all of the Facility's discharges to surface water, excluding storm water discharges, and the facility's processing and disposal of biosolids. The primary discharge from the tailings impoundment reports directly to the Transitional Waters and Gilbert Bay of Great Salt Lake via Outfall 012. The sediment pond and Outfall 002 remain in place for the discharge of tailings water to the C-7 Ditch and Lee Creek as needed. Outfall 007 for the discharge of seepage and dike runoff water from the tailings impoundment to the C-7 Ditch also remains in place. PUBLIC COMMENTS During the public comment period provided under Utah Administrative Code R317-8-6.5, any interested person may submit written comments on the draft permit and may request a public hearing, if no hearing has already been scheduled. A request for a public hearing shall be in writing and shall state the nature of the issues proposed to be raised in the hearing. All comments will be considered in making the final decision and shall be answered as provided in R317-5-6.12. Public comments are invited any time prior to the deadline of the close of business on March 16, 2022. Public comments can be submitted to: Sarah Ward, Individual Permits Section, Utah Division of Water Quality, PO Box 144870, Salt Lake City, Utah 84114-4870 or by email at: wqcomments@utah.gov, with the included subject information: UT0000051 Public Comment c/o Sarah Ward. After considering public comment the Utah Division of Water Quality may issue, revise, or abandon the permit. The permit is available for public review under https://deq.utah.gov/water-quality/water-quality-public-notices. If internet access is not available, a copy may be obtained by calling Sarah Ward at 385.332.9574.

Notice of Special Accommodations (ADA)

In compliance with the Americans with Disabilities Act, individuals needing special accommodations (including auxiliary communicative aids and services) during this meeting should notify Emily Canton at 801-536-4342.

Notice of Electronic or Telephone Participation

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Meeting Information

Meeting Location

PO Box 144870
Salt Lake City, UT 84114-4870
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Contact Name

Emily Canton

Contact Email

ercanton@utah.gov

Contact Phone

(801)536-4342

Notice Posting Details

Notice Posted On

February 14, 2022 02:58 PM

Notice Last Edited On

February 15, 2022 02:20 PM

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