Protecting Public Health and the Environment.

Draft 401 Certification - Lower Boise Watershed - City of Nampa

Accepting Comments from September 14, 2020 to October 5, 2020

This action would authorize the city of Nampa to discharge sediment, nutrients (nitrogen and phosphorus), heat, chlorides, metals, petroleum, hydrocarbons, microbial pollution (Escherichia coli), and organic chemicals (pesticides and industrial chemicals) into the the Lower Boise Watershed (Indian Creek, Mason Creek, and Boise River). The permittee must define and implement at least two activities designed to reduce impairment pollutants.

Based on its review of the joint application for permit, DEQ certifies that if the permittee complies with the terms and conditions imposed by the permit along with the conditions set forth in this water quality certification, then there is reasonable assurance the activity will comply with the applicable requirements of the Clean Water Act, the Idaho water quality standards, and other appropriate water quality requirements of state law. (NPDES Permit Number: IDS028126) 

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Staff Contacts

Water Quality Analyst
Kati Carberry
DEQ Boise Regional Office
1445 N. Orchard St.
Boise, ID 83706
(208) 373-0550

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