Moffat Collection System Project Final Environmental Impact Statement

MOFFAT COLLECTION SYSTEM PROJECT FINAL ENVIRONMENTAL IMPACT STATEMENT Appendix N: Comments Received on the Draft EIS and Responses Photo provided courtesy of Denver Water. MOFFAT COLLECTION SYSTEM PROJECT FINAL ENVIRONMENTAL IMPACT STATEMENT Appendix N: Comments Received on the Draft EIS and Responses Photo provided courtesy of Denver Water. Appendix N Comments Received on the Draft EIS and Responses Table of Contents Introduction Comment-Response Reports Angling Community Form Letters Boating Petition Form Letters Boulder County Form Letters Coal Creek Canyon Form Letters Colorado Resident Form Letters Crown Jewel Form Letters Federal Grand County Board of Realtors #1 Form Letters Grand County Board of Realtors #2 Form Letters Gross Reservoir Expansion Form Letters Gross Reservoir Form Letters Jurisdictions/Municipalities Part A Jurisdictions/Municipalities Part B Jurisdictions/Municipalities Part C Jurisdictions/Municipalities Part D Jurisdictions/Municipalities Part E Not Adequately Form Letters Not Adequately Modified Form Letters Online Petition Form Letters Organizations/Stakeholders Part A Organizations/Stakeholders Part B Protest Family Form Letters Public Part A Public Part B Public Part C Public Part D Public Part E N-i Appendix N Comments Received on the Draft EIS and Responses Table of Contents (Continued) Save the Fraser River Form Letters State Strong Support Form Letters Urge You Form Letters Urge You Modified Form Letters List of Tables Table N-1 Index of Moffat Project Commenters on the Draft EIS N-ii Appendix N Comments Received on the Draft EIS and Responses List of Acronyms % percent AASHTO American Association of State Highway and Transportation Officials ACI air curtain incinerator AF acre-feet AF/yr acre-feet per year ANFO Ammonium Nitrate Fuel Oil APCD Air Pollution Control Division APEN Air Pollutant Emission Notice ARNF Arapaho & Roosevelt National Forests ARNI aquatic resource of national importance ASR aquifer storage and recovery AWTP Advanced Water Treatment Plant BA Biological Assessment BBA Bishop-Brogden Associates, Inc. Bi-City Littleton-Englewood BLM Bureau of Land Management BO Biological Opinion C-BT Colorado-Big Thompson CAA Clean Air Act CDNR Colorado Department of Natural Resources CDOT Colorado Department of Transportation CDOW Colorado Division of Wildlife CDPHE Colorado Department of Public Health and Environment CDWR Colorado Division of Water Resources CEQ Council on Environmental Quality CFR Code of Federal Regulations cfs cubic feet per second CNHP Colorado Natural Heritage Program N-iii Appendix N Comments Received on the Draft EIS and Responses List of Acronyms (continued) CO carbon monoxide Corps U.S. Army Corps of Engineers CPW Colorado Parks and Wildlife CR County Road CRCA Colorado River Cooperative Agreement C.R.S. Colorado Revised Statute CSA Combined Service Area CWA Clean Water Act CWCB Colorado Water Conservation Board cy cubic yard dB decibel dBA A-weighted decibel scale DEIS Draft Environmental Impact Statement Denver Water Board of Water Commissioners DOLA Colorado Department of Local Affairs DRCOG Denver Regional Council of Governments DWR Division of Water Resources EAP Emergency Action Plan EIS Environmental Impact Statement EPA U.S. Environmental Protection Agency EPT Ephemeroptera, Plecoptera and Trichoptera ESA Endangered Species Act FEIS Final Environmental Impact Statement FEMA Federal Emergency Management Agency FERC Federal Energy Regulatory Commission FR Forest Road FWCA Fish and Wildlife Coordination Act GB greenback GCSMP Grand County Stream Management Plan N-iv Appendix N Comments Received on the Draft EIS and Responses List of Acronyms (continued) GCWIN Grand County Water Information Network GCWSD Grand County Water and Sanitation District GHG greenhouse gas GWdb groundwater discharge GWua groundwater underflow HDR HDR Engineering, Inc. ID Identification IFIM Instream Flow Incremental Methodology IGA Intergovernmental Agreement IHA Indicators of Hydrologic Alteration IRP Integrated Resources Plan JSA Joint Sewer Authority LBD Learning by Doing LEDPA least environmentally damaging practicable alternative LG logistics LIRF lawn irrigation return flows M&E Monitoring and Evaluation MEPP Magnolia Environmental Preservation Plan Metro WWTP Metro Reclamation District Wastewater Treatment Plant mgd million gallons per day mg/L milligrams per liter MIS Management Indicator Species Moffat Project Moffat Collection System Project or Project MW megawatt MWAT maximum weekly average temperature NAAQS National Ambient Air Quality Standards NCWCD Northern Colorado Water Conservancy District NDIS Natural Diversity Information System NEPA National Environmental Policy Act of 1969, as amended N-v Appendix N Comments Received on the Draft EIS and Responses List of Acronyms (continued) NGO non-governmental organization NISP Northern Integrated Supply Project NOA Notice of Availability NPDES National Pollutant Discharge Elimination System NPS National Park Service NWCD Northern Water Conservancy District NWSRS National Wild and Scenic Rivers System O&M operations and maintenance ORV Outstandingly Remarkable Value PACSM Platte and Colorado Simulation Model PAOT persons at one time PBO Programmatic Biological Opinion PCA Potential Conservation Area PHABSIM Physical Habitat Simulation PM2.5 particulate matter less than 2.5 microns in diameter PM10 particulate matter less than 10 microns in diameter PMSA Primary Metropolitan Statistical Area PRRIP Platte River Recovery Implementation Program RDC relative development cost Reclamation U.S. Department of the Interior, Bureau of Reclamation RFFA reasonably foreseeable future action RMP Resource Management Plan ROD Record of Decision ROM rough order-of-magnitude ROW right-of-way SDS Southern Delivery System SEO State Engineer’s Office SH State Highway SHPO State Historic Preservation Officer SMWSA South Metro Water Supply Authority N-vi Appendix N Comments Received on the Draft EIS and Responses List of Acronyms (continued) SPPP South Platte Protection Plan SRI/CSE Stream Reach Inventory and Channel Stability Evaluation SWA State Wildlife Area SWR Strategic Water Reserve TDS total dissolved solids TMDL total maximum daily load UPCO Upper Colorado River Basin Study UPRR Union Pacific Railroad URS URS Corporation US # U.S. Highway # U.S. United States USFS U.S. Forest Service USFWS U.S. Fish and Wildlife Service USGS U.S. Geological Survey WFET Watershed Flow Evaluation Tool WGFP Windy Gap Firming Project WISE Water Infrastructure and Supply Efficiency WPW&SD Winter Park Water and Sanitation District WQCD Water Quality Control Division WTP Water Treatment Plant WUA weighted usable area WWTP Wastewater Treatment Plant N-vii Appendix N Comments Received on the Draft EIS and Responses This page intentionally left blank N-viii Appendix N Comments Received on the Draft EIS and Responses Appendix N presents the U.S. Army Corps of Engineers’ (Corps’) responses to the comments received on the Moffat Collection System Project (Moffat Project or Project) Draft Environmental Impact Statement (DEIS). Comments received on the DEIS during the public comment period were reviewed and considered in preparation of the Final Environmental Impact Statement (FEIS). The Federal Energy Regulatory Commission (FERC), in its role as a Cooperating Agency in the National Environmental Policy Act of 1969, as amended (NEPA) process, reviewed the comments received on the DEIS related to Gross Reservoir, which is part of the Gross Reservoir Project, a hydroelectric project (P-2035) licensed by FERC. FERC then provided input to the Corps on comments that involved Gross Reservoir. The majority of FERC’s input was provided to keep clear FERC’s jurisdiction and its role in the review of the proposed Moffat Project. Prior to beginning any construction activities at Gross Reservoir associated with the Moffat Project, the Board of Water Commissioners (Denver Water) would need to receive construction authorization from FERC. Denver Water would also need to receive prior FERC approval of certain construction plans, and plans for protection and mitigation of values such as recreation and cultural resources at Gross Reservoir. Additionally, Denver Water would need to receive FERC approval to temporarily or permanently amend any plans that have already received approval or would need to be developed under the FERC license, such as plans involving recreation and cultural resources protection. As part of the overall license amendment process, Denver Water will be responding to comments received on the Draft License Amendment Application for the Gross Reservoir Hydroelectric Project. Denver Water will submit a Final License Amendment Application to FERC sometime after the release of the Moffat Project FEIS. For responses that reference the proposed dam elevation, maximum reservoir water level, volume, surface area, and shoreline length at Gross Reservoir, readers are reminded that Table 2-11 in Chapter 2 of the Moffat Project FEIS contains a comparison of Gross Dam and Reservoir features by alternative. Chapter 2 and Appendices H-22 and M-2 of the Moffat Project FEIS contain information about the Environmental Pool. The environmental effects discussed in Chapter 5 of the Moffat Project FEIS for surface water correspond with the 72,000-acre-foot (AF) enlargement, whereas the operations and effects associated with the 5,000-AF Environmental Pool, as independently evaluated by the Corps, are discussed in Appendices H-22 and M-2, as are additional analyses conducted by the Corps

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