Groundwater Storage Project

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Groundwater Storage Project Wasco,
California By Will Boschman, Gen. Mgr.
WASCO Rose Country
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Location of Semitropic Water Storage District
Semitropic Water Storage District
State Water Project
Bakersfield
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Location of Semitropic Water Storage District
Semitropic Water Storage District
Central Valley Project
Bakersfield
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Location of Semitropic Water Storage District
Semitropic Water Storage District
Central Valley Project
State Water Project
California Aqueduct
Bakersfield
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Semitropic Water Storage District
19 miles
Water Service Area 142,600 ac.
27 miles
Applied Irrigation Water 475,000 ac. ft./year
Size 220,000 Acres 344 sq. miles
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Semitropic Water Storage District
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Semitropic Water Storage District Cropping
Pattern - 2003
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DISTRICTS CHALLENGES (LATE 80S)

• Groundwater Overdraft

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Observed Lift
Projected Lift
Without Importing Surface water
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DISTRICTS CHALLENGES (LATE 80S)

• Groundwater Overdraft

• Rising Energy Costs

• Water Costs (State) Steadily Increasing

• Water Shortages

• Paying For Water We Didnt Get (1991-No Water)

• Agricultural Economy Not Good

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Semitropic Water Storage District
Banking Project
SWP-CALIFORNIA AQUEDUCT
CVP-FRIANT- KERN CANAL
GROUND WATER RESERVOIR
DEFINED STORAGE CAPACITY 1.65 MILLION Ac. Ft.
EIR. CERTIFIED SUMMER 1994 JANUARY 2000
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Banking Partner Interrelationships
Semitropic Water Storage District
California Aqueduct
Metropolitan Water District
Santa Clara Valley Water District
Alameda County Water District
Zone 7 Water District
Newhall Land And Farming Co.
Vidler Water Company
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Semitropics Banking Program Contributes To
Drought Year Needs For Over 20 Million Californian
s
Equivalent To 15 to 20 Gallons Per Person Per
Day
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Semitropic Water Storage District Pre-banking
Project Conditions
Total Irrigated Acreage 144,662.56
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Direct Recharge
In-Lieu Recharge
Water Is Stored By Percolating Directly To Storage
Water Is Stored By Substituting Surface Water
For An Equal Amount Of Groundwater
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DIRECT RECHARGE
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DIRECT RECHARGE
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DIRECT RECHARGE
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In-Lieu Recharge
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In-Lieu Recharge
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MAIN DRAIN ROAD SIPHONINCREASING SYSTEM CAPACITY
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MAIN DRAIN ROAD SIPHON
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P565 PUMPING PLANT
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POND ROAD PUMPING PLANT
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CONCRETE CANAL LINING PROJECTINCREASING SYSTEM
CAPACITY
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POND POSO CONCRETE CANAL LINING PROJECT
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POND POSO CONCRETE CANAL LINING PROJECT
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P667 PUMPING PLANT
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POND POSO CONCRETE CANAL LINING PROJECT
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POND POSO CONCRETE CANAL LINING PROJECT
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Stored Water Recovery Well
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In-Lieu Recharge And Recovery
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Stored Water RecoveryReverse Flow Pump
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240cfs Reverse Flow Pump Station
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FARM ROAD SIPHON
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Stored Water Recovery5400 HP, 300 cfs Pumpback
Pumping Plant
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Project Obstacles/Accountability

• Stored water is kept In trust
• Semitropic writes a report every two years on
  impacts of water moving into and out of the Bank
• A Banking Partner may audit Semitropics
  accounting related to the Bank at any time

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Project Obstacles/ Accountability (Cont.)

• Environmentally, Relatively Easy

• Public And Local Understanding of Groundwater
  Banking

• Acceptance By Our Board and In District Water
  Users

• Acceptance By Neighboring/Surrounding Districts

• Formed Formal Groundwater Monitoring Committee

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Groundwater Monitoring Committee
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Pumpback Facilities
SWRU 250 CFS
Proposed Pumpback (PB2) (250 CFS for 10
Months) (170 CFS for 5 Months) Existing Pumpback
(PB1) (300 CFS for 5 Months)
170 CFS
420 CFS
Existing 300 CFS

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Stored Water Recovery Unit
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120 PIPE
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120 PIPE
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PROJECT STATUSMay 1,2004

• I. Project Costs
• 1. Capital
• Original Project 140 M
• Expanded Project 130 M
• ______
• Total 270 M
• 2. O M Fees 4.5 M/Year
• 3. Transfer Fees
• Water Into Storage 63.00/A.F.
• Water Out of Storage 63.00/A.F. Plus Energy
  Costs

II. Capital Funds Spent To Date 90 M III.Water
in Storage 750,000 A.F. IV. Water Withdrawn
From Storage 175,000 A.F.
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SEMITROPIC WATER STORAGE DISTRICTNEW
UNITEXPECTED GROUNDWATER QUALITY

• Based on samples collected during a five week
  20,000 acre-foot pumpback into the California
  Aqueduct at 300cfs between November 5th and
  December 12th, 2001.
• Based on one production test well and two casing
  hammer test wells located within the new well
  field (SWRU)
• Also in 2001 data was collected from over 260
  wells and an operation model constructed which
  estimates blended water quality for wells used in
  pump back operation.

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DESIGN/BUILD/FINANCE TEAM

• LAYNE CHRISTENSEN COMPANY Well Drilling
• WELLS FARGO PUBLIC FINANCE - Financing
• W.M. LYLES CO. Pipe Installation/Structural
• GEI CONSULTING/BOOKMAN-EDMONSTON - Engineering
• BRAUN ELECTRIC - Electrical
• HANSON PIPE Pipe Supplier
• BOYLE ENGINEERING, INC. Treatment Facilities
• ARB, INC. Treatment Facilities Construction
• HDR Water Treatment/Technical Support

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- Return Capacity to Aqueduct New Well Field
(1) 150,000 AF/Yr Additional
District Wells (2)
50,000 AF/Y

Additional Dry Year Yield
200,000 AF/Yr - New Capacity Into
Storage 45,000
AF/Yr - Additional Defined Storage
650,000 AF (1) From 65
new wells producing 250 cfs for 10 months(2)
From existing wells producing 170 cfs for 5
months
POTENTIAL INCREASE IN BANKING PROJECT DUE TO NEW
UNIT
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EXISTING AND EXPANDED BANKING PROJECT
CAPABILITIES

• Can provide in a 50 SWP year 356,500 AF of dry
  year supply
• Can take into storage 315,000 AF/Yr of surplus
  wet year water
• Can store 1,650,000 AF
• EIR complete

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STORED WATER RECOVERY UNIT WELLFIELD LAND
OWNERSHIP MARCH - 2004
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SEMITROPIC GROUNDWATER BANKING PROJECTBENEFITS

• Semitropic (Agriculture)
• Groundwater Overdraft Correction
• Reduce Groundwater Pumping Lifts

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SEMITROPIC GROUNDWATER BANKING PROJECTBENEFITS

• Semitropic (Agriculture)
• Groundwater Overdraft Correction
• Reduce Groundwater Pumping Lifts

• Operational Flexibility (More Plumbing)

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SEMITROPIC GROUNDWATER BANKING PROJECTBENEFITS

• Semitropic (Agriculture)
• Groundwater Overdraft Correction
• Reduce Groundwater Pumping Lifts
• Operational Flexibility (More Plumbing)

• Urban Partners
• Increase Dry Years Supply
• Optimize Use Of Water Supplies
• Enhance Water Supply Reliability
• Provide Water Management Tool (Any Year)

• Private Partner
• Provides Place To Put Water Until Needed
• Use Of Private Sector Funds For Water
  Facilities
• Provides Means For True Water Marketing
• Enhance Corporate Profits

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Location Map
Semitropic WSD
California Aqueduct
Coastal Branch
Cross Valley Canal
Santa Margarite Lake
San Luis Obispo
Bakersfield
Soda Lake
Lopez Lake
Twitchell Reservoir
Santa Maria
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Conceptual Plan for Transferring50,000 af/yr
between SWP/CVP and Millerton (F-K)
Millerton Reservoir
50,000 af/yr of SWID water left in storage on
behalf of transferor and/or for reallocation
Kern River
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Overview

• The Semitropic Groundwater Bank is a
• proven water resource management tool
• that allows its Partners the ability to store
  
• and extract water supplies.
• Utilization of the Bank provides flexibility
• and reliability to the Partners to assure a
• firm water supply to their customers.

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NEW UNIT

• 150,000 Shares will be issued and sold by
  Semitropic to participants in the NEW UNIT. Each
  share will provide the shareholder with the
  following use of the NEW UNIT
• 1 AF/Yr Recovery plus Lower Priority capacity on
  a when available basis
• 3 AF Storage plus Lower Priority capacity on a
  when available basis
• 0.33 AF/Yr Recharge plus Lower Priority
  capacity on a when available basis

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Banking PartnersStorage and Recovery
Allocations
5. Reserved Under M O U 6. All Participants Have
Right To Use Unused Capacity

• Depends upon amount of State Entitlement
  allocated to Semitropic during year.
• Made Available Under The Stored Water Recovery
  Unit Program In 2004.
• Excludes 40,131 AF in storage for Sate of
  California.
• Lower Priority Participants Only Have Rights to
  Unused Capacity.

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HWY 46 SUBSTATION
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HYDRO PLANT
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GAS ENGINE
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SOLAR SITE
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SOLAR SITE
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THE END
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Policy Issue Wellhead vs. Downstream Treatment ?
Water Quality Comparison
50,000 AF/month
California Aqueduct
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Policy Issue Wellhead vs. Downstream Treatment ?
Water Quality Comparison
50,000 AF/month
Stored Water Recovery Wells
California Aqueduct
15,000 AF/month
65,000 AF/month
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Policy Issue Wellhead vs. Downstream Treatment ?
Water Quality Comparison
50,000 AF/month
Stored Water Recovery Wells
California Aqueduct
15,000 AF/month
65,000 AF/month
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POLICY QUESTIONS

• 1. Should Pump-in Water Be Treated for All
  Constituents That Exceed Ambient In the Aqueduct?
• 2. Should There Be Recognition of Benefits or
  Improvement in Some Constituents to Offset
  Degradation in Others?
• 3. Should Downstream Users Be Paid an
  Incremental Amount to Treat Constituents That Do
  Not Meet Then Current Standards?
• 4. Should Downstream Users Be Paid an Amount to
  Treat Constituents That Result in Incremental
  Degradation?
• 5. Should Policies for Conveying Raw Water Be
  Adjusted or Relaxed in Dry or Drought Years?

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KERN COUNTY MAP
SWRU WELL FIELD (PROPOSED)
SEMITROPIC WSD
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KERN COUNTY MAP
SWRU WELL FIELD (PROPOSED)
SEMITROPIC WSD
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SWRU WELL FIELD (PROPOSED)
SEMITROPIC WSD
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KERN COUNTY MAP
SWRU WELL FIELD (PROPOSED)
SEMITROPIC WSD
ARVIN - EDISON WSD