groundwater sustainability plan outlines · 4/4/2017 · gsp framework workshop april 4, 2017...
TRANSCRIPT
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Kern Groundwater Authority GSP Framework Workshop
April 4, 2017
Groundwater Sustainability Plan Outlines
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Overview
• Analysis Approach • GSP Sections Overview • Umbrella/Chapter GSP Outline
Comparison Overview • GSP Development Process • Basin Settings • Next Steps
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Analysis Approach
• Approved regulations
• Excel version
• Diagram Development
• Detailed Outlines
• Chapter and Umbrella Outlines
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GSP Sections • Introduction
• Basin Setting
• Sustainability Goal
• Monitoring Networks
• Minimum Thresholds, Measurable Objectives, and Interim Milestones
• Water Supply Accounting
• Projects, Management Actions, Adaptive Management
• GSP Reporting
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GSP Section: Introduction • GSP implementation costs • GSP funding plan • Description of plan area
– 8 maps – Document surface conditions
• General plans summary • ID and describe GSP effects on parties in basin • Outreach/stakeholder communication
compilation
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GSP Section: Basin Setting • Data management system • Hydrogeologic conceptual model
– Principal aquifers and aquitards • Parameters and boundaries/extents
– 6 more maps, cross sections, basin boundaries • Groundwater conditions
– Contour maps – Change in storage – Hydrographs – Seawater intrusion maps/xsection – More maps (WQ, subsidence, SW systems, ecosystems) – Timing and quantity of stream depletions
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GSP Section: Basin Setting • Water budget
– 20 years historical • ET data (satellite) • Pumping data (estimated) • SW components
– Sustainable yield – Change in storage – Numerical model
• Data projections (SW supply, land use, etc) • Forecast climate change? • Calibration • SW/GW interaction • 50 years projected
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GSP Section: Basin Setting
• Existing monitoring – Programs – Data collection – Suitability for SGMA – Levels, WQ, subsidence – Into DMS
• Management areas – Begin to ID
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GSP Section: Undesirable Results • Undesirable result narrative
– Programmatic language – Stakeholder outreach
• Agencies • Public • Landowners
– Stakeholder education – Evaluation of occurrence – Evaluation of affect on beneficial uses
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GSP Section: Monitoring Networks
• Develop representative monitoring – Justification
• Monitor for each aquifer in basin:
– Spatial density, frequency, maps, protocols
• Data gaps and plan to fill • Summaries • Data management
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GSP Section: Thresholds
Example Diagram
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GSP Section: Thresholds
• Representative monitoring (again) • Methodology for thresholds • Measurable objectives, minimum thresholds,
and interim milestones that cover
• Graphs with thresholds for each key monitoring point
• Maps and tables
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GSP Section: Water Supply Accounting
• Water accounting framework – Development – Updates – Accounting
• By agency and/or by landowner
• Allocation strategy – How the sustainable yield ‘pie’ is
divvied up
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GSP Chapter: Projects, Management Actions, and
Adaptive Management
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GSP Section: Projects, Management Actions and
Adaptive Management • Management program
– Document development of projects – Analyze affect of projects/MAs/AMAs
• Projects • Management actions • Adaptive management
– Quantifiable trigger points
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GSP Section: Projects, Management Actions and
Adaptive Management • Document for each project, MA, or AMA
– Outreach – Permitting – Benefits explanation – Source of water if used – Legal authority – Costs and funding – Addressing uncertainty – CEQA considerations
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GSP Section: Reporting
• ID annual report content • ID 5 year evaluation content • Develop plan to prepare reports • Data management plan • Monitoring network updates • GW model updates?
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Umbrella/Chapter Outlines
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Umbrella/Chapter Outlines
• Regional Scale – Basinwide – KGA Area
• Summaries • Guidance
Umbrella Chapter • Chapter Scale
– District / GSA
• Local Detail
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Umbrella/Chapter Outlines
• Introduction – KGA Info – Plan Area
• Basin Setting – HCM – GW Conditions – Water Budget – Regional Existing
Monitoring – Management Areas – Allocations
Umbrella Chapter
• Introduction – Chapter Agency Info – Plan Area
• Basin Setting – Reference to Umbrella
• Local refinement as needed
– Local Existing Monitoring – Local Management Areas – Local Allocation
Detail
Refinement
Basin Setting
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Umbrella/Chapter Outlines
• Sustainability Goal and Undesirable Results – Goal – UR Narrative – Summary of
Preliminary Evaluations
Umbrella Chapter
• Sustainability Goal and Undesirable Results – Preliminary Evaluation
Guidance Detail
Undesirable Results
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Umbrella/Chapter Outlines
– Objectives and Rationales
– Standards and Protocols
– Frequency / Density – Data Gaps
Umbrella Chapter
– Levels/Storage/Subs/WQ/Seawater/SW-GW
– Representative Monitoring
– Monitoring Sites and Details (Grid)
Guidance
Detail
Monitoring Networks
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Umbrella/Chapter Outlines
• General Guidance and Limitations
• Summary of Chapters • Review of Effects
between MAs
Umbrella Chapter
• Set for Levels/Storage/Subs/WQ/Seawater/SW-GW
• Representative Thresholds
• Consider Effects between MAs
Minimum Thresholds, Measurable Objectives, and Interim Milestones
Guidance and Summary
Detail
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Umbrella/Chapter Outlines
• General Guidance and Limitations
• Summary of Chapters • How Actions achieve
Sustainability in Basin • Regional Actions
Umbrella Chapter
• Detailed Description for each • Project
• Management Action
• Adaptive Management
– How Actions achieve sustainability in Chapter
Guidance and Summary
Detail
Projects, Management Actions, and Adaptive Management
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GSP Development Process
Need to know first
Then
Basin-Wide
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Basin Settings
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Basin Settings
• Hydrogeologic Conceptual Model – Describes physical framework that groundwater
moves within • Geologic Formations • Barriers to Flow • Aquifer parameters
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Basin Settings
• Groundwater Conditions – Describes/shows how water moves within the
framework • GW elevation, • GW flow directions, • GW gradients, • GW changes over time • GWQ/Salinity • Connection to SW
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Basin Settings
• Water Budget – Describes/shows the amounts of water
• SW • GW • Precipitation • Extraction • Uses • ET • Historic/Current/Future
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Basin Settings
Basin Settings
Hydrogeologic Conceptual
Model
Groundwater Conditions Water Budget
Historic and Current Water
Budget
Numeric Model
Forecast Water Budget
SW/GW Interaction Underflows
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Basin Settings Process • Collect best data • Build database of data (DMS) • Hydrogeologic Conceptual Model • GW Data/trends (Conditions) • Create generalized Water Budget
(20 years historic/current) • Add Data to C2VSIM GW Model • Recalibrate? (unclear) then use to
– Underflows – SW/GW Interaction – Forecast Water Budget
• Use model outputs to complete Water Budget
Used to populate and calibrate model
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Next Steps • Late April / Early May workshops
for other GSP sections • Comments