GROUNDWATER AND SGMA 101 Stakeholder Workshop for the SLO Basin Groundwater Sustainability Plan A U G U S T 1 4 , 2 0 1 9 • 6 P M - 8 P M P R E P A R E D B Y W A T E R S Y S T E M S C O N S U L T I N G
PRESENTERS TIFFANY MEYER MICHAEL CRUIKSHANK, PG, CHG DAVID O’ROURKE, PG, CHG Strategic Communications, Hydrogeologist, Water Systems Hydrogeologist, GSI Water Solutions Water Systems Consulting Consulting PANELISTS MYCHAL BOERMAN DICK TZOU, PE Deputy Director of Water, Water Resources Engineer, City of San Luis Obispo County of San Luis Obispo 3 | SLO GSP Workshop / Aug. 14, 2019
WORKSHOP AGENDA 1. SGMA 101 6:00pm-8:00pm 2. Groundwater 101 3. The SLO Basin 4. The GSP Process 5. Stakeholder Participation 4 | SLO GSP Workshop / Aug. 14, 2019
KEY TERMS: Use Your Cheat Sheet
SGMA 101 Michael Cruikshank
5 REASONS GROUNDWATER IS IMPORTANT TO CALIFORNIANS 1. Groundwater provides 30-60% of California’s water — 83% in the Central Coast area of SLO County. 2. Some California communities rely entirely on groundwater for drinking water. 3. Groundwater is a critical resource for many farmers throughout the state 4. Groundwater is a finite resource. 5. It takes a long time to replenish over pumped aquifers. 7 | SLO GSP Workshop / Aug. 14, 2019
WHY SGMA? To ensure the sustainable use of California’s groundwater and a water secure future for the State, the Sustainable Groundwater Management Act (SGMA) was signed into law in 2014. 8 | SLO GSP Workshop / Aug. 14, 2019
HIGH AND MEDIUM PRIORITY BASINS OPEN INTERACTIVE MAP https://gis.water.ca.gov/app/bp-dashboard/p2/ 9 | SLO GSP Workshop / Aug. 14, 2019
GOVERNANCE TIMELINE City and County of SLO SGMA Signed into Law create GSAs, sign MOA 2014 2015 2016 2017 2017 2018 SUMMER FALL GSC Formed by GSAs Governance Structure and Participating Parties Outreach Begins 10 | SLO GSP Workshop / Aug. 14, 2019
GSP GOVERNANCE Groundwater Sustainability Agencies Groundwater Sustainability Commission GROUNDWATER SUSTAINABILITY COMMISSION (GSC) EDNA RANCH EDNA VALLEY AND VARIAN GROWERS RANCH MWC MWC Adam Hill Andy Pease Mark Zimmer Dennis Fernandez Bob Schiebelhut Member Member Vice Chair Member Chair Bruce Gibson Aaron Floyd Toby Moore James Lokey George Donati Alternate Alternate Alternate Alternate Alternate GROUNDWATER SUSTAINABILITY AGENCIES (GSAS) 11 | SLO GSP Workshop / Aug. 14, 2019
SGMA DEADLINES GROUNDWATER SUSTAIN- GROUNDWATER BASIN ABILITY PLAN COMPLETE ACHIEVES SUSTAINABILITY 2022 2027 2032 2037 2042 Evaluate Progress Evaluate Progress Evaluate Progress 12 | SLO GSP Workshop / Aug. 14, 2019
SGMA 101 Q&A
GROUNDWATER 101 David O’Rourke
WHAT IS GROUNDWATER? Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly through geologic formations of soil, sand and rocks called aquifers . 15 | SLO GSP Workshop / Aug. 14, 2019
WHAT IS GROUNDWATER? 16 | SLO GSP Workshop / Aug. 14, 2019
SURFACE WATER vs. GROUNDWATER 17 | SLO GSP Workshop / Aug. 14, 2019
SURFACE WATER vs. GROUNDWATER 18 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER SUSTAINABILITY INDICATORS Chronic Lowering of Water Quality Groundwater Levels Degradation Interconnected Surface Reduction of Water Depletions Groundwater Storage Land Subsidence Seawater Intrusion 19 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER WHAT WE EXAMINE/ANALYZE: DATA • Hydrographs • Water level map • Changes in water levels • Water budget 20 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER ELEVATION HYDROGRAPH 21 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER ELEVATION CONTOUR MAPS Paso Robles Formation Aquifer 1997 2017 Inferred Groundwater Flow Direction 22 | SLO GSP Workshop / Aug. 14, 2019
CHANGE IN SPRING GROUNDWATER ELEVATIONS – 1997 to 2018 – Paso Robles Formation Aquifer ⚫ OBSERVATIONS: • Decline in GW elevation over ⚫ most of subbasins • Areas of largest decline in Estrella and Creston areas ⚫ • Declines in GW elevations result in depletion of GW in storage 23 | SLO GSP Workshop / Aug. 14, 2019
THE GROUNDWATER BUDGET 24 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER 101 Q&A
THE SLO BASIN David O’Rourke
MAP OF THE SLO BASIN 27 | SLO GSP Workshop / Aug. 14, 2019
CONCEPTUAL CROSS-SECTION OF ACQUIFERS 28 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER ELEVATION HYDROGRAPH San Luis Valley Hydrograph of City 29 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER ELEVATION HYDROGRAPH Edna Valley 30 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER DATA GAPS 31 | SLO GSP Workshop / Aug. 14, 2019
GROUNDWATER ELEVATION CONTOUR MAPS SLO Basin 32 | SLO GSP Workshop / Aug. 14, 2019
WATER DECLINE LEVEL MAP SLO Basin 33 | SLO GSP Workshop / Aug. 14, 2019
THE GROUNDWATER MODEL • Tool for evaluation of future conditions • Computer Analysis of Groundwater and Surface Water Flow • Calibration attempts to duplicate past observed data • Future scenario runs simulate impacts of projects and management actions 34 | SLO GSP Workshop / Aug. 14, 2019
SLO BASIN CHARACTERIZATION REPORT San Luis Obispo Valley Basin Characterization and Monitoring Well Installation January 18, 2018 Prepared for San Luis Obispo County Flood Control and Water Conservation District Prepared by 35 | SLO GSP Workshop / Aug. 14, 2019
SLO BASIN Q&A
THE GSP PROCESS Michael Cruikshank
GSP DEVELOPMENT TIMELINE FINAL PLAN ADMINISTRATIVE INFO SUSTAINABLE PLAN TO DEVELOPMENT AND BASIN SETTING GOAL SETTING SUSTAINABILITY 2019 2020 2021 2022 Develop sustainability Develop projects and Lays the foundation of GSP approved by vision and goals, management actions understanding SLO January 31, 2022 minimum thresholds for Basin. that lead to sustainable undesirable results, and groundwater objectives for the management. sustainability indicators. | SLO GSP Workshop / Aug. 14, 2019 38
GSP DEVELOPMENT TIMELINE FINAL PLAN ADMINISTRATIVE INFO SUSTAINABLE PLAN TO DEVELOPMENT AND BASIN SETTING GOAL SETTING SUSTAINABILITY 2019 2020 2021 GROUNDWATER SUSTAIN- GROUNDWATER BASIN ABILITY PLAN COMPLETE ACHIEVES SUSTAINABILITY 2022 2027 2032 2037 2042 Evaluate Progress Evaluate Progress Evaluate Progress | SLO GSP Workshop / Aug. 14, 2019 39
GSP PROCESS Q&A
STAKEHOLDER PARTICIPATION Tiffany Meyer
STAKEHOLDER PARTICIPATION “Groundwater is best managed at the local level.” The GSC will consider all beneficial uses and users of groundwater within the SLO Basin. | SLO GSP Workshop / Aug. 14, 2019 42
SLO BASIN GENERAL PUBLIC STAKEHOLDERS ENVIRONMENTAL AND LAND USE CONSERVATION ORGS ECONOMIC DEVELOPMENT PRIVATE / RURAL GROUNDWATER USERS AGRICULTURAL HUMAN RIGHT TO WATER WATER USERS URBAN / INDUSTRIAL USERS TRIBES | SLO GSP Workshop / Aug. 14, 2019 43 INTEGRATED WATER MANAGEMENT
HOW TO PARTICIPATE REGISTER . MEETINGS . WORKSHOPS . REVIEW AND Register as an Join quarterly GSC Join interactive COMMENT . interested party at meetings to receive workshops to learn Review and comment SLOWaterBasin.com project news and to about and inform the on sections/chapters to receive email share your input. development of the of the GSP. alerts. GSP. SLOWaterBasin.com 44 | SLO GSP Workshop / Aug. 14, 2019
IMMEDIATE OPPORTUNITIES TO PARTICIPATE MEETINGS . REVIEW AND COMMENT . Board of Supervisor Meeting Communications and Aug. 20 • 9am Engagement Plan SGMA Implementation Public comment closes Aug. 31 Update Report GSC Public Meeting Sept. 11 • 3:30pm-5:30pm Learn more or take action at SLOWaterBasin.com 45 | SLO GSP Workshop / Aug. 14, 2019
SLOWaterBasin.com DEMO 46 | SLO GSP Workshop / Aug. 14, 2019
REQUEST ACCOMMODATIONS Contact Dick Tzou County of San Luis Obispo dtzou@co.slo.ca.us 805-781-4473 47 | SLO GSP Workshop / Aug. 14, 2019
PANEL Q&A
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