Overview of Bay Delta Conservation Plan and Importance to Santa Clara County

March 1, 2014 League of Women Voters

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CLEAN, RELIABLE WATER

FLOOD PROTECTION

HEALTHY CREEKS & ECOSYSTEMS

Santa Clara Valley Water District

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Sources of Supply for Santa Clara County

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Shasta Lake Federal Central Valley Project

Sacramento- San Joaquin River Delta

Hetch Hetchy San Francisco

Lake Oroville State Water Project

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Local and Imported Water Supplies Are Managed to Prevent Groundwater Overdraft and Land Surface Subsidence

4

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Delta is the hub of California’s water system

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District’s Water Master Plan Strategy

Secure existing supplies and

infrastructure

Optimize the use of existing supplies and

infrastructure

Increase water recycling and conservation

Meet drought year needs, adapt to climate change, manage uncertainty

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Water Conservation Program = Long-Term Savings

7

Population and Water Use Over Time

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

19

93

19

94

19

95

19

96

19

97

19

98

19

99

20

00

20

01

20

02

20

03

20

04

20

05

20

06

20

07

20

08

20

09

20

10

20

11

20

12

20

13

20

30

56,000

98,500

Acre-feet/yr

SCVWD Water Conservation Savings/Target

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Delta Stewardship

Council

Delta Conservancy

Delta Protection Plan

Bay Delta Conservation

Plan

State Water Resources

Control Board

• MISSION: “help achieve the CO-EQUAL GOALS of providing more reliable water supply for California and protecting, restoring and enhancing the Delta’s ecosystem.”

Delta Plan—

adopted 2013

Strategic Plan Economic

Sustainability Plan

Delta Flow Criteria

Water Quality

Control Plan

Conservation Plan

(HCP/NCCP)

Delta Planning Framework

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Delta conveyance (CM 1): New diversion facilities with state of the art fish

screens to help restore more natural flow patterns

Habitat development (CM 2-11):

Up to 113,000 acres of new and restored habitat, including 65,000 acres of tidal marsh and 5,000 acres

of riparian forest

Other stressor reduction (CM 12-22): Measures to address contaminants, in-Delta diversions, invasive species, illegal harvest,

migratory pathways, and predation

BDCP Conservation Measures (CM): 22 total

.

For fish species: •Restore tidal habitat (65,000 acres) •New floodplain (10,000 acres)

Delta smelt Longfin smelt

Chinook salmon Steelhead Sturgeon

Splittail Lampreys

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BDCP Benefits

1. Improve water supply reliability

2. Reduce seismic risk

3. Improve water quality

4. Restore Delta ecosystem

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BDCP: Improve water supply reliability

0

50,000

100,000

150,000

200,000

250,000

Average Wet Above Normal Below Normal Dry Critical

De

live

rie

s to

San

ta C

lara

Val

ley

Wat

er

Dis

tric

t A

cre

-Fe

et

pe

r Y

ear

Water Year Type

Future No Action, Low Deliveries

Future No Action, High Deliveries

BDCP, Low Deliveries

BDCP, High Deliveries

SWP/CVP Long-Term Average Annual Deliveries

BDCP: 4.7 MAF – 5.6 MAF

Future No Action: 3.5 MAF – 3.9 MAF

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BDCP: Reduce seismic risk

State and Federal Pumping Plants

• Isolated facility

allows minimum

deliveries to continue

Otherwise—

• Deliveries impaired

or shut down for 6

months to 2 years

• Estimated time to

build “freshwater

pathway” = 200 days

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BDCP: Improve water quality

Indoor

Use

Wastewater

Treatment Plant

Groundwater

Recharge Treated Water

Imported Water

Outdoor

Use

Recycled

Water

Indirect

Potable

Reuse

Groundwater Basin

Brine

Disposal Bay

Dire

ct P

ota

ble

Re

use

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BDCP Cost Assumptions

Common assumptions:

o District’s CVP costs based on long-term average CVP

deliveries

o District’s SWP costs based on contract amount

High estimate:

o higher deliveries/lower Delta outflow

o 50/50 cost split between SWP/CVP

Low estimate:

o lower deliveries/higher Delta outflow

o 55/45 cost split between SWP/CVP

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BDCP Capital and O&M Costs

Costs in constant 2012

dollars ($ millions)

Costs in present value

($ millions)

BDCP capital and O&M costs

$24,754 $17,686

BDCP costs allocated to SWP and CVP contractors (all Plan elements)

$16,930 $13,323

BDCP costs allocated to District (estimated)

$640 - $740 $504 - $583

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BDCP Costs to Santa Clara County

Incremental Costs to Santa Clara County by FY2029

M&I groundwater charge ($/AF)

North County $132 - $172

South County $87 - $114

SWP tax, average single family ($/year)

North County $28 - $31

South County $22 - $24

Total cost per average household ($/month)

North County $7 - $8

South County $3 - $4

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Next Steps

The Public Review Draft BDCP and Environmental Impact

Report/Environmental Impact Statement (EIR/EIS) are currently

available for public review and comment through June 13, 2014.

May 2013 Oct 2013 Dec 2013

Dec – June

(180 days)

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Next Steps

Date Subject

Apr 2014

BDCP Interim Financing (approval of bond

documents and CEO authorization for funding

agreements).

May 2014 Review and discuss formal District comments on

Public Review Draft BDCP and EIR/EIS.

July 2014 Review and update relevant Board Policy and CEO

Interpretations.

Fall 2014 Review and discuss resolution of outstanding BDCP

policy issues, and District status as a permittee.

Questions? Valleywater.org

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