Kern ern Grou roundwater Auth thor orit ity GSP Framework W k - - PowerPoint PPT Presentation

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GSP Framework W k Worksh shop Apri ril 4 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: I ntroduction

• 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