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1. Goals & Objectives2. Performance3. Governance
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3
Kern Fan Projects
Historic Recharge/Recovery Operations
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4
Rosedale-Rio Bravo WSD
Groundwater Banking1. Multiple Water
Supplies2. Facilities
Infrastructure
3.Soils (Geology)
Good Water Quality4. Local Management
and Support
ConfinedAquifer
Unconfined AquiferSand/Gravel
Clay/Silt
Water Table
Kern River
RechargeBasin
Recharge
Canal
Recovery WellCross Valley
CanalDischarge Pipe
Surface Seal
Gravel Pack
Well Casing
Intake Section
(Perforations)
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KERN FAN Groundwater Banking Projects
Recharge Facilities
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0%
50%
100%
150%
200%
250%
300%
350%0
50
100
150
200
250
300
PercentKernRiverIndex&SW
PAllocation
DepthtoWater
RRBWSD - DISTRICT HYDROGRAPH - LONG TERM
KERN RIVER INDEX SWP ALLOCATION WEST I-5
NIKKEL WELL STOCKDALE RANCHOS CAUZZA WELL
MCCASLIN CHET REED BUSHNELL
L.R. STOUT
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50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
450,000
500,000
550,0000
25
50
75
100
125
150
175
200
225
250
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
2008
DepthtoWater
(ft)
Balance + Banked Rosedale Balance SHOP WELL NIKKEL WELL
WEST I-5 WELL NIKKEL SHOP GREG ENNS VIRGIL BUSSEL
RANCH WELL ROMANINI WELL DALE RANCHOS
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GOVERNANCE Memorandum of Understanding Critical element for
local acceptance of banking
programs
Applies to bankers and adjoining entities New projects must
negotiate similar MOU Provides for:
Project definition
Operational objectives Mitigation measures Minimum operating
criteria Project monitoring
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MOU Operational Objectives Maintain or enhance water quality
Recharge priority to highest quality water
Negative salt balance Extract poor quality water where practical
and where
blending provides mitigation
Control migration of poor quality groundwater The golden rule
cannot create conditions that are
worse than would have prevailed absent the projectgiving due
recognition to benefits
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MOU Mitigation Measures If problems develop:
Limit recovery
Provide enough wells to allow pumping rotation Provide adequate
well spacing Adjust or terminate pumping Lower affected users pump
bowls Alternate water supplies Financial compensation
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MOU Project Monitoring The MOU establishes a Monitoring
Committee, which:
Is composed of bankers and adjoining entities Engages an
independent consultant Establishes a groundwater evaluation
methodology and plan Prepares annual reports on water quality and
operations Recommends modifications to project operations to
minimize project impacts
Is the first venue for dispute resolution
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MOU Challenges New projects must negotiate substantially similar
MOU Key issues
Limited experience with long-term recovery program Clear
criteria to determine impacts from Banking Projects Competition for
recharge lands (and storage) as new projects
become operational
Ensuring compliance with the golden rule
