iid ssa_bbip-2.18.16

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Imperial Irrigation District

Presentation to Salton Sea Authority

Backbone Infrastructure Project

Graeme R. Donaldson

Program Manager Salton Sea Initiative

February 18, 2016

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Background & Goals• State has been slow to initiate Salton Sea restoration projects.

• Develop the infrastructure required to collect, store, manage and

release IID drainage water to accommodate future uses leading

to and onto the Salton Sea playa including:

Uses by IID consistent with its core water delivery and drainage

functions.

Uses by the State of California to fulfill its obligations related to and

consistent with the restoration of the Salton Sea.

Uses by other public and private entities related to and consistent with

the restoration of the Salton Sea.

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Project Objectives• Enable and ensure continued functionality of IID’s drains, including

existing and anticipated operations and maintenance of the system.

• Reconfigure the existing IID drainage system to the extent required to

incorporate the backbone infrastructure facilities and functions.

• Incorporate flexibility and durability into the reconfigured IID drainage

system to accommodate anticipated fluctuations in drainage flows and

incremental development of restoration and other uses over time.

• Provide water of sufficient quality to protect existing infrastructure and

support identified uses, including specific habitats.

• Design infrastructure to minimize effects on species of fish and wildlife

dependent on the Salton Sea and promote habitat where possible.

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Salton Sea Backbone Infrastructure

What it is?

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Water Management Backbone

• Uses by IID consistent with

its core water delivery &

drainage functions.

• Divert agricultural return

water

• Treat to reduce nutrients

and sediment

• Distribute to playa

• Mitigate for pupfish

• Allow other infrastructure

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Water Management

• Allows for all current and required uses

• Manages IID water and land efficiently

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Salton Sea Backbone Infrastructure Project

Define (goals, objectives, purpose and needs)

Design (up to approximately 30% to 40%)

Engineer (up to approximately 30% to 40%)

Permit (commence permitting prior to 3.31.16)

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Intended Scope (phase #1 Jan-Jun 2016)

• Develop Backbone Infrastructure

a) definition, b) purpose, c) limitations, d) uses

• Develop goals, objectives and metrics

• Develop conceptual designs and operations and linkages to

other projects

• Develop compliance plans

• Develop draft NOP/NOI and scoping plans

• Develop NEPA/CEQA and 404 alternatives

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Resource & cost allocation

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Questions?Please contact Graeme Donaldson Cell # 760 457 6565,

or e-mail GrDonaldson@iid.com