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Public Notice: Proposed Wastewater Permit for Clearwater Paper Corporation

Publish Date: 03/28/2019


The EPA is proposing to reissue a National Pollutant Discharge Elimination System (NPDES) permit to Clearwater Paper Corporation Lewiston Mill in Lewiston, Idaho.

Clearwater Paper Corporation owns and operates an integrated paper mill that produces market pulp, tissue, and paperboard. Tissue and paperboard are produced both from pulp produced on site as well as purchased pulp.

Clearwater Paper’s treatment system also accepts wastewater from an adjacent sawmill owned by Idaho Forest Group. As such, the facility is also a "privately owned treatment works" as defined in 40 CFR 122.2. The discharge of wastewater from the Idaho Forest Group sawmill to Clearwater Paper’s treatment system does not require a separate NPDES permit.

The effluent from the facilities is discharged to the Snake River.

Tentative Determination

The Region 10 office of the EPA has tentatively determined to issue a discharge permit to Clearwater Paper Corporation.

State Certification

This notice will serve as public notice of the intent of the state of Idaho, Department of Environmental Quality, to consider certifying that the subject discharges will comply with the applicable provisions of the Sections 208(e), 301, 302, 303, 306 and 307 of the Clean Water Act. The NPDES permit will not be issued until the certification requirements of Section 401 have been met.

Administrative Record

Electronic copies of the draft permit and technical fact sheet are available under "Related Documents" below.

The draft permit and other related documents may also be reviewed at the EPA Region 10 office in Seattle between 8:30am-4pm, Monday-Friday:

U.S. EPA Region 10
1200 Sixth Avenue, Suite 155
Seattle, Washington, 98101

Copies and other information may be requested by writing to the EPA at the above address to the attention of the NPDES Permits Unit, or by contacting Audrey Washington (, (206) 553‑0523.

Copies of the draft permit and fact sheet are also on file at the following locations:

Idaho Department of Environmental Quality
1118 "F" St.
Lewiston, ID 83501
208-799-4370 or toll-free 877-541-3304

EPA Idaho Operations Office
950 W Bannock, Suite 900
Boise, ID 83702

EPA Hanford Project Office
309 Bradley Blvd. Suite 115
Richland, WA 99352

Disability Reasonable Accomodation

If you need a reasonable accommodation for a disability, please call Brian Nickel at 206-553-6251 (voice). TTY/TDD users please dial Washington Relay Service at 1-800-833-6388. Please provide one week advance notice for special requests not related to ongoing programs and services.

Applicant or Respondent

Clearwater Paper Corporation Lewiston Mill
803 Mill Road
Lewiston, ID 83501

Permit #: ID0001163

Related Documents

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