Kern Groundwater Authority GSP Framework Workshop

April 4, 2017

Groundwater Sustainability Plan Outlines

Overview

• Analysis Approach • GSP Sections Overview • Umbrella/Chapter GSP Outline

Comparison Overview • GSP Development Process • Basin Settings • Next Steps

Analysis Approach

• Approved regulations

• Excel version

• Diagram Development

• Detailed Outlines

• Chapter and Umbrella Outlines

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

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

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

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

GSP Section: Basin Setting

• Existing monitoring – Programs – Data collection – Suitability for SGMA – Levels, WQ, subsidence – Into DMS

• Management areas – Begin to ID

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

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

GSP Section: Thresholds

Example Diagram

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

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

GSP Chapter: Projects, Management Actions, and

Adaptive Management

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

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

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?

Umbrella/Chapter Outlines

Umbrella/Chapter Outlines

• Regional Scale – Basinwide – KGA Area

• Summaries • Guidance

Umbrella Chapter • Chapter Scale

– District / GSA

• Local Detail

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

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

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

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

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

GSP Development Process

Need to know first

Then

Basin-Wide

Basin Settings

Basin Settings

• Hydrogeologic Conceptual Model – Describes physical framework that groundwater

moves within • Geologic Formations • Barriers to Flow • Aquifer parameters

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

Basin Settings

• Water Budget – Describes/shows the amounts of water

• SW • GW • Precipitation • Extraction • Uses • ET • Historic/Current/Future

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

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

Next Steps • Late April / Early May workshops

for other GSP sections • Comments