Documents and Maps

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NISP 401 Water Quality Certification

Colorado Department of Public Health and Environmental and the Water Quality Control Division granted NISP a Clean Water Act Section 401 Certification in January 2020.

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2013 Survey of Public Support for NISP

After five years for extended Environmental Impact Statement (EIS) studies, public support for the NISP remains steady. A survey conducted in July 2013 with 900 voters in Larimer, Weld and Morgan counties shows voter support for the project at 72 percent. The 2013 survey follows a survey conducted in August 2008 with 800 Larimer and Weld county voters that showed NISP had combined county support of 70 percent.

NISP No Action Alternative Evaluation

This report provides conceptual level information regarding the No Action Alternative for evaluation in the Supplemental Draft Environmental Impact Statement.

NISP No Action Alternative Evaluation Executive Summary

Executive summary for a report that provides conceptual level information regarding the No Action Alternative for evaluation in the Supplemental Draft Environmental Impact Statement.

Water Supplies and Demands for NISP Participants Report

A 2017 report for Water Supplies and Demands for NISP Participants.

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2015 SDEIS Executive Summary

The Northern Integrated Supply Project Supplemental Environmental Impact Statement Executive Summary.

2015 Supplemental Draft Environmental Impact Statement (SDEIS)

Supplemental Draft Environmental Impact Statement released by the U.S. Corps of Engineers in 2015.

Additional SDEIS Information

Additional information on the U.S. Army Corps website.

2018 NISP FEIS Executive Summary

The Northern Integrated Supply Project Final Environmental Impact Statement Executive Summary.

2018 NISP Final Environmental Impact Statement

Final Environmental Impact Statement released by the U.S. Corps of Engineers in 2018.

Federal EIS Supporting Documents

U.S. Army Corp of Engineers appendices and documentation for environmental impact statements.

2022 Army Corps of Engineers 404 Permit

404 permit for the Northern Integrated Supply Project.

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NISP Map

Overall map of the Northern Integrated Supply Project.

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2015 Proposed Conceptual Mitigation Plan

2015 Proposed Conceptual Mitigation Plan for the Northern Integrated Supply Project.

2017 State Fish and Wildlife Mitigation and Enhancement Plan

The approved 2017 State Fish and Wildlife Mitigation and Enhancement Plan for the Northern Integrated Supply Project.

Hickenlooper Support Letter for NISP Fish and Wildlife Mitigation and Enhancement Plan

Support letter from former Gov. Hickenlooper for NISP Fish and Wildlife Mitigation and Enhancement Plan.