Agenda 1. Roll Call, Agenda Overview and Introductions 2. Public - - PDF document

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Kaweah Sub-Basin (KSB) Management Team Committee Meeting

City of Visalia Wastewater Treatment Plant 7579 Avenue 288, Visalia, CA

July 17, 2019 9:00 am

Agenda

• 1. Roll Call, Agenda Overview and Introductions
• 2. Public Comment
• 3. Groundwater Sustainability Agency Updates and Progress
• 4. Coordination Agreement Status
• 5. Consultant Presentation and Recommendations
• 6. Other Business
• 7. Adjournment

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• 5. Consultant Presentation
• a. Approval of Amendments
• b. GSA Subsidence Approach's
• c. Water Quality – Minimum Thresholds, Measurable

Objectives

• d. Monitoring Networks
• e. Next Steps & Future Activities

5.a Approval of Amendment to MSA and Task Order

• Approval of Amendment 1 to Master Services Agreement

– Compensation – Ownership of Documents

• Approval of Amendment KBS-05.2018 – Basin Setting

– For additional services provide in completion of the KSB Basin Setting Report

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5.b GSA Subsidence

Approach’s for Minimum Thresholds and Measurable Objectives

GSA Subsidence

Approach’s for Minimum Thresholds and MOs

• Subsidence Approach – Greater and Mid Kaweah GSAs

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Subsidence Minimum Thresholds – Greater Kaweah GSA Subsidence Minimum Thresholds – Mid Kaweah GSA

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GSA Subsidence

Approach’s for Minimum Thresholds and MOs

• Subsidence Approach – East Kaweah GSA

– Given the experience/data evaluated through the East Kaweah, we are focusing on impacts to critical infrastructure which in our case was determined to be the Friant-Kern Canal – Historically, there has been very little subsidence in the East Kaweah. Recent InSAR data even suggests portions of the East Kaweah have slightly been in uplift by comparison to 2015 levels. – We set a Minimum Threshold rate of 9.5-inches in a year as that relates to an approximate 10% impact in capacity to the FKC. We’ll probably also use this as a cumulative subsidence number as well. However, given the up and down “breathing” the land has done between wet and dry years, we likely don’t have a subsidence issue in

• ur area.

– We will be focusing on impacts to deliveries on the current capacity of the FKC. With 8 Contractors in the GSA, we’ll know if there is a problem with someone getting water due to issues in the Kaweah area.

5.C Groundwater Quality MTs & MOs

• MKGSA is committed to not causing water quality degradation during the

implementation of projects and management actions

• Degradation by GSA as result of Project or Management Action = MCL or

Agricultural (AG) water quality objective (WQO) exceedance, so MCLs or Ag WQOs are Minimum Thresholds

• MKGSA may add monitoring wells if needed to evaluate impacts of projects
• n groundwater quality – 75% of MCLs or AG WQO will be considered our

Measurable Objectives

• MKGSA will monitor water quality trends and take action if concentrations

are trending toward the Minimum Thresholds

• MKGSA will coordinate with other agencies responsible for addressing

existing water quality degradation in the GSA

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Groundwater Quality SMC 5.d GWL Monitoring Network - MKGSA

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5.d GWL Monitoring Network - GKGSA

5.d GWL Monitoring Network - EKGSA

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5.d GWQ Monitoring Network - MKGSA

5.d Next Steps

• Work continues on development of draft GSP sections targeting mid-

summer (no later than mid-August) for release of public review drafts

• Completion of Coordination Agreement In Progress with a Public

Release in some GSPs

• Complete Data Management System August through November 2019
• Coordination with Adjacent Basins on Sustainable Management

Criteria

• Save, Save, Save for investments needed during the Implementation

Period 