© 2014 hdr, all rights reserved. cwcb meeting - july 16, 2014 rangely, colorado review of the draft...

© 2014 HDR, all rights reserved.

CWCB Meeting - July 16, 2014 Rangely, Colorado

Review of the Draft South Platte Basin Implementation Plan

Plan Elements

Alternative Portfolios

Summary

South Platte Overview

Overarching Themes & Goals

The South Platte Vision

Challenges

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1South Platte Overview

Municipal Industrial Agricultural Environmental Recreational

South Platte Basin Overview – Diverse Needs

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• The east slope is home to 80% of the State’s population (the Metro and South Platte Basin account for about 70%)• Large industries include energy production, manufacturing, brewing, and

food processing• Power generation at coal and natural gas fired facilities

Municipal and Industrial Water Needs

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Municipal & Industrial (M&I) Water Supply Gap in the South Platte Basin

2050 Gap

Existing Supply

6*Based on SWSI 2010 Medium Water Demands

1.4 million acres of irrigated land Seven of top ten agricultural producing counties in the State Represents approximately 75% of agricultural sales statewide Processing of West Slope agricultural products

Agricultural Water Needs

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Agricultural Water Shortages (2050)

8*Based on SWSI 2010 Agricultural Needs Projections

Gap 262,000 AFY

Gap 160,000 AFY

Enjoyment of environmental and recreational valueso South Platte Basin is a gateway to tourism throughout the Stateo South Platte Basin is home to the most visited State Parkso Environment and recreational opportunities important to quality of

life

Various Attributes of Importance within the Basino State endangered, threatened, or species of special concerno Important Riparian Habitato Migratory Bird Viewing/Huntingo Fishing (including Gold Medal fisheries)o Recreation (including skiing and whitewater and flatwater boating)

Environmental and Recreational

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2Overarching Themes & Goals

“A Good Colorado Plan Needs a Good South Platte Plan”

Solutions must be pragmatic, balanced, and consistent with Colorado law and property rights

The South Platte River Basin will continue its leadership role in efficient use and management of water

A balanced program is needed to investigate, preserve, and develop Colorado River options

Overarching Themes for South Platte BIP

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1. Agriculture2. Municipal Water Conservation, Reuse and Efficiency3. Identified Projects and Processes4. South Platte Storage and Other Infrastructure5. Water Quality6. New Colorado River Supply7. Environmental and Recreational8. Statewide - Long-term

Eight Goals and Measureable Outcomes

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3The South Platte Vision

Successful IPPs Conservation and reuse Multipurpose projects Storage, additional conveyance and system integration Environmental and recreational protections and enhancements Agricultural transfer – through ATMs where feasible New Colorado River supply

The South Platte Vision – Meeting the Municipal Supply Gap

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Minimize the impacts of traditional dry-up

Encourage continued agricultural production and restoration of curtailed production

Integrated development of new Colorado River Supply

The South Platte Vision – Future Agricultural Production

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Identify and implement attribute-specific projects to enhance environmental and recreational attributes

Encourage cooperative projects to enhance environmental and recreational attributes

Encourage funding and cooperation

Promote cooperative storage for environmental and recreational needs

The South Platte Vision – Protecting Environmental and Recreational Attributes

The Roundtables envision that if state water project(s) are considered they would:o Supply water to communities with enhanced levels of conservation & reuseo Provide environmental and recreational enhancements for both east and

west slopes

The South Platte Vision – Collaborative Statewide Approach

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4Challenges

16 Major Challenges in Meeting the Gaps

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9. Republican River Basin water use constraints

10. Programs to manage and recover protected species and their habitats

11. Water quality management

12. Time and cost for regulatory decisions on new water projects

13. Diverse environmental and recreational water needs and concerns

14. Vulnerability to water service disruptions

15. Opportunities for further system interconnections

16. Roles of elected officials, business community and the general public in water supply planning

16 Major Challenges in Meeting the Gaps

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South Platte BIP

The Challenges Drive the Solutions

5Plan Elements

1. Maximize Implementation of Identified Projects and Processes

Basin Project

Estimated Yield (AFY)

South Platte Northern Integrated Supply Project 40,000

South Platte Windy Gap Firming Project 30,000

Metro Moffat Collection System Project (Denver Water, Arvada) 18,000

Metro Rueter Hess Reservoir Enlargement (Parker WSD, Town of Castle Rock, Castle Pines North, Stonegate)

14,810

Metro Thornton Northern Project 13,500

Metro ECCV Northern Expansion 12,700

Metro Aurora’s Eagle River Joint-Use Project (Eagle River MOU) 10,000

South Platte Chatfield Reservoir Storage Reallocation Project 8,500

South Platte Fort Collins Halligan Reservoir Enlargement 7,000

South Platte Greeley’s Milton Seaman Reservoir Enlargement 6,600

M&I Medium Scenario Gap

Gap

Medium Success

IPPs(60%)

Existing Supply

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M&I Gap by County

IPPs

Remaining Gap

SINCE 2000 Metro Rest of South Platte Basin

2000 2050Reduction

(%)2000 2050

Reduction (%)

TOTAL GPCD 191 129 32% 200 146 27%

South Platte Basin municipalities are among the national leaders in water conservation

South Platte Basin municipalities are pursuing even more aggressive conservation goals

2. Maintain Leadership in M&I Conservation and Reuse

Measure

Metro Rest of South Platte BasinBaseline

20102050 Reductio

n (%)Baseline

20102050 Reduction

(%)Residential

Indoor43.7 34 22% 60.1 40 33%

Non-Residential Indoor

37.5 32 15% 39.2 33 15%

Outdoor 62.8 54 15% 73.7 63 15%Water Loss 10.9 9 17% 15 10 33%

TOTAL GPCD 155 129 17% 188 146 22%

Reuse is being pursued by nearly all water providersOpportunities for future reuse in Metro and South Platte are limited due to regulatory and supply constraints

2. Maintain Leadership in M&I Conservation and Reuse

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Basin ProjectEstimated Yield

(AFY)

Metro Aurora’s Prairie Waters Project Expansion & Storage Variable

Metro Denver Water Reuse 17,500

Metro WISE (SMWSA, Denver Water, Aurora) 7,225

“South Platte River Basin will continue its Leadership Role in Efficient Use and Management of Water”

3. Maximize effective use of South Platte Supplies

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Alternative Transfer Methods (ATMs)o Minimize impact on local economyo Minimize societal impacts o Minimize environmental and recreational impactso Provide funding sources for agricultural userso Optimize both agricultural and nonagricultural benefits

Pilot projects underway through CWCB’s ATM Grant Program

While promising, there are numerous technical, legal, institutional and financial issues that need to be addressed

Historically, traditional agricultural transfers (“buy and dry”) between willing buyers and sellers to meet M&I demands

4. Minimize traditional agricultural buy and dry – use ATMs where practical

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Types of projects:Instream flow and lake level Channel restorationStewardshipSpecies reintroductionCooperative and multipurpose projects

5. Protect and enhance environmental and recreational attributes

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Alternative Transfer Methods Multi-Purpose Projects

Storage Recharge Diversion Modification or

Reoperation Trans-Basin Projects

Enhancement and/or reduction of streamflows Benefits and impacts to wetlands and other wildlife habitat

Municipal and Industrial Projects

Agricultural Dry-up

Reduction of return flows impacting environmental and recreational attributes

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Regions Identified by BRTs – Project Examples


Northern

Upper Mountain

Metro Region

Lower

High Plains



Upper Mountain Region•Attributes:

• Rare and Significant Plant Species• Boating• Fishing

•Projects• Stewardship • Channel and Riparian Corridor

Restoration



Metro Region•Attributes:

• Recreational Corridors• Riparian Habitat• Fish Habitat

•Projects• Greenway Projects• Stream Channel

Restoration• Stewardship• Species Reintroduction



Northern Region•Attributes:

• Recreational Boating• Plains Fish Species• Wild and Scenic

•Projects• Facilities Modification• Stream Channel

Restoration• Fish Passage



Lower South Platte Region•Attributes:

• Plains Fish Species• Waterfowl Hunting/Viewing• Flatwater Boating• Riparian Habitat

•Projects• Species Reintroduction• Cooperative Recharge Projects• Reservoirs • Stewardship and

Land Conservation

South Platte and Metro RTs support on-going IBCC discussions

South Platte Alternative Concepts include:o A single, larger project: various configurations of Flaming Gorge, Green River

and Yampa River projectso Smaller or incremental projects

BRTs do not support the default agricultural transfer only plan

Seek to develop balanced, integrated plan including Colorado River projects and agricultural transfers for the overall benefit of Colorado

6. Simultaneously advance new Colorado River supply options

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“A Balanced Program is needed to Plan and Preserve Colorado River Options”

Resilient water storage and conveyance infrastructure

Use of safety factors

Evaluate potential system vulnerabilities

Collaborative, regional approaches (such as WISE)

7. Manage risk of climate change impacts

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Suggested Activities:Develop consistent message to describe water supply gapsLeverage communication professionalsComplement existing state effortsDevelop and maintain basin-specific tools and approachesEstablish success metrics

8. Facilitate effective South Platte communication and outreach programs

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Make use of lower quality water sources:o Blending strategies and advanced water treatment technologieso Research and develop new technologies

9. Research new technologies and strategies

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Participating Agencies:

•Colorado Water Conservation Boardo WSRA Statewide Fundo Metro RT WSRA Fundo South Platte RT WSRA Fundo Arkansas RT WSRA Fund

•Metro Wastewater Reclamation District

•City of Aurora

•City of Brighton

•East Cherry Creek Valley WSD

•City of La Junta

•Northern Water

•South Adams County WSD

•Arapahoe County Water and Wastewater Authority

Colorado Zero Liquid Discharge

Goals:Save public moneyProvide same assurance of quality and due diligenceRetain existing environmental protectionsProvide greater efficiency, predictability, and consistency in the permitting process

10. Advocate for improvements to federal and state permitting processes

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6Alternative Portfolios

Portfolio A: In-basin portfolio with only traditional buy and dry

Portfolio B: In-basin portfolio with IPPs at 60% success, ATMs, multipurpose/cooperative projects, and traditional agricultural transfers

Portfolio C: A balanced portfolio with in-basin methods and new Colorado River supplies (150,000 AF)

Alternative South Platte Portfolios

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Alternative South Platte Portfolios

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Alternative South Platte Portfolios – Additional Conservation

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Alternative South Platte Portfolios – Climate Change

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7Summary

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“A Good Colorado Plan Needs a Good South Platte Plan”

Solutions must be pragmatic, balanced, and consistent with Colorado law and property rights

The South Platte River Basin will continue its leadership role in efficient use and management of water

A balanced program is needed to investigate, preserve, and develop Colorado River options

Overarching Themes for South Platte BIP

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© 2014 hdr, all rights reserved. cwcb meeting - july 16, 2014 rangely, colorado review of the draft...

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