US Army Corps of Engineers
Omaha District

Halligan EIS News

Halligan Water Supply Project draft environmental impact statement published
11/22/2019
The U.S. Army Corps of Engineers, Omaha District has published in the federal register the Draft Environmental Impact Statement and conceptual mitigation plan for the Halligan Water Supply Project, a...
Two CO water supply projects will be evaluated separately
1/16/2015
The Omaha District, U.S. Army Corps of Engineers has determined that the Halligan and Seaman water supply projects will be separated and independently evaluated as the Halligan Water Supply Project...

Environmental Impact Statement - Halligan Water Supply Project

Summary: 

The City of Fort Collins, Colorado, proposes to expand its existing Halligan Reservoir, located on the North Fork Cache la Poudre River, from approximately 6,400 acre-feet to approximately 14,525 acre feet to provide additional municipal and industrial water supply. In 2006, the U.S. Army Corps of Engineers, Omaha District, Regulatory Branch began preparing a combined Environmental Impact Statement (EIS) for the Halligan Water Supply Project and the City of Greeley's proposed expansion of Milton Seaman Reservoir which is also on the North Fork Cache la Poudre River. Several contributing factors including differing study schedules led Fort Collins and Greeley to request that the two projects be separated and independently evaluated. The USACE carefully considered the request and on January 15, 2015, determined that it is appropriate and in the best interest of all involved to independently evaluate them as two separate projects. The scopes of the two projects and the issues identified in the initial scoping process remain essentially the same. Therefore, additional public scoping meetings are not required.

 
EIS Milestones   Completed 
Publish Notice of Intent to Prepare Draft EIS   Feb. 1, 2006
Hold Public Scoping Meeting   May 30, 2006
Publish Notice of Availability and Issue Draft EIS   Nov. 22, 2019
Publish Notice of Public Hearing   Nov. 22, 2019
Draft EIS    Nov. 22, 2019
Draft EIS Comments Due   Jan. 26, 2020
Public Hearing Held    
Final EIS   *2020
Final EIS Comments Due    
Corps Permit Decision    

*These are target timeframes.

The Technical Reports and other unpublished referenced documents are currently being transitioned to the U.S. Army Corps of Engineers Headquarters Digital Library.

Draft EIS Release Date: November 22, 2019

Permit Applicant: City of Fort Collins Utilities

Draft EIS Prepared by: U.S. Army Corps of Engineers, Omaha District Regulatory Branch (the Corps Regulatory Branch is neither a proponent nor opponent of the proposed project).

A list of Colorado libraries and offices where a paper copy of the Draft EIS is available is in the Public Notice.

Comments Due: January 26, 2020

Submit comments in writing to:

Cody Wheeler, Halligan Project EIS Project Manager
U. S. Army Corps of Engineers, Omaha District
Denver Regulatory Office
9307 South Wadsworth Boulevard
Littleton, Colorado 80128-6901

E-mail: NWO.HalliganEIS@usace.army.mil

Federal Register Notice:  Availability of the Draft EIS: Halligan Water Supply Project (Published November 22, 2019)

USACE Public Notice:  Availability of the Draft EIS: Halligan Water Supply Project (Published November 22, 2019)

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EIS Milestones Completed 
Publish Notice of Intent to Prepare EIS Sept. 17, 2003
Public Scoping Nov. 7, 2003
Publish Notice of Availability of Draft EIS Oct. 30, 2009
Draft EIS Comments Due March 17, 2010
Publish Notice of Availability of Final EIS Projected Release February 2014*
Permit Decision Projected Decision Spring 2015*

Draft EIS Technical Reports

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2016 Purpose and Need Report

2016 Alternatives Screening Report

2016 Alternatives Screening Report Appendices

2015 Action Alternatives Description Report

2019 Operations Plan Report

2016 Noise Technical Report

2014 Common Technical Platform Climate Change Technical Report

2015 Cultural Resources Technical Report

2019 Air Quality Technical Report

2019 Air Quality Technical Report Appendix A

2016 Geology Technical Report

2016 Groundwater Technical Report

2016 Hazardous Sites Technical Report

2016 Aesthetics and Visual Resources Technical Report-1

2016 Socioeconomics Recreation and Land Use Technical Report

2018 Socioeconomics Recreation and Land Use Addendum 1

2018 Socioeconomics Recreation and Land Use Addendum 2

2016 Soils Technical Report

2017 Vegetation Resources Technical Report

2017 Wildlife Resources Technical Report

2019 Species of Concern Technical Report

2016 Hydrologic Modeling Technical Report

2016 North Fork of the Cache La Poudre River Wetland and Riparian Resources Baseline Technical Report

2017 Water Resources Technical Report

2018 Water Resources Technical Report Summer Plan Addendum

2018 Water Resources Technical Report Summer Plan Addendum Appendix A

2018 Water Resources Technical Report Summer Plan Addendum Appendix B

2019 Water Resources Technical Report Cumulative Impacts Addendum

2019 Water Resources Technical Report Cumulative Impacts Addendum Appendix A

2019 Water Resources Technical Report Cumulative Impacts Addendum Appendix B

2019 Water Resources Technical Report Cumulative Impacts Addendum Appendix C

2017 Impacts to Aquatic Biological Resources Report

2019 Aquatic Biological Resources Effects Technical Report Appendices

2019 North Fork Aquatics Baseline Report

2018 Altered Flows Technical Report

2018 Surface Water Quality Technical Report

2016 North Fork of the Cache La Poudre River Baseline Water Quality Technical Report

2018 Surface Water Quality Report Summer Plan Addendum

2013 Cache La Poudre River Mainstem Stream Morphology and Sediment Transport Baseline Technical Report

2018 Stream Morphology and Sediment Transport North Fork Baseline Technical Report

2018 Stream Morphology and Sediment Transport North Fork Baseline Technical Report- Appendices A B C

2018 Stream Morphology and Sediment Transport North Fork Baseline Technical Report - Appendix D

2018 Stream Morphology and Sediment Transport North Fork Baseline Technical Report - Appendices E and F

2019 Stream Morphology and Sediment Transport Effects Report Vol I

2019 Stream Morphology and Sediment Transport Effects Report Vol II Appendices A to J

2019 Stream Morphology and Sediment Transport Effects Report Vol III Appendices K to U

2018 Dam Rehabilitation Technical Report