CALCIMA 2015 SGMA Zilles Kleinfelder

THE SUSTAINABLE GROUNDWATER MANAGEMENT ACT

AND WHAT IT MEANS TO THE AGGREGATE MINING INDUSTRY

Joe Zilles, P.G., Principal Hydrogeologist

THE SUSTAINABLE GROUNDWATER MANAGEMENT ACT

“Local Agencies will now have the power to assess the conditions of their local groundwater basins and take the necessary steps to bring those basin in a state of chronic long-term overdraft into balance.”

-Governor Edmund G. Brown, Jr.From the letter accompanying the signing

of AB 1739, SB 1168 and SB 1319

SGMA At A GlanceCompilation of Three Bills (2014)

AB 1739 (Dickinson)SB 1168 (Pavely)SB 1319 (Pavely)

Commits the State to locally controlled sustainable groundwater management 50 Year Implementation PeriodHistory AB3030 (1990), SB 610/221 (2004)

SGMA Applies to 127 High and Medium Priority Groundwater Basins

96% of Total Groundwater Use in CA40% Normal Annual Use of Water in CA>60% During Drought Periods

The Role of the Groundwater Sustainability Agency and the

Groundwater Sustainability Plan

GSAA local agencyDevelop and Implement the GSPConsiders all beneficial uses and users Must be formed by June 30, 2017

GSPMeasurable objectivesInterim milestonesApplied to all high and medium priority basinsLow priority basins exemptGSPs must be completed by Jan 31, 2020

Pre-SGMA Conditions and Undesirable Results

Chronic Lowering of Water LevelsReduction of Groundwater StorageSeawater IntrusionDegraded Water QualityLand SubsidenceDepletion of Interconnected Surface Water

Undesirable ResultsLand Subsidence

DewateringProcess Water Supply

Depletion of Interconnected Surface Water

Shallow Water TableSurface Water VulnerabilityGroundwater Recharge

Future ChallengesStakeholder Involvement/Groundwater ProtectionsGroundwater Supply Permitting

Supplemental ApplicationsCEQA Style

IS/MND/EIRWell Construction/ Abandonment

Supplemental Application Example

Reference: Stanislaus County

Complying With AuthoritiesCoordination Agreements/MOUGroundwater Management FeesAllocation and Extraction LimitsData Management

SdsDssDsdSdsdSdsdsSdsdsReference: 1 Source Occupational Health Solutions

Data ManagementData Collection and Reporting

Groundwater useAquifer Behavior and Response

The Role of StakeholdersRepresentation Coordination AgreementData ManagementPrepare for Planning Level Evaluations for Future Water SuppliesImprove Pumping Scenarios

THANK YOUPlease feel Free to Contact me at

jzilles@Kleinfelder.com, 916.366.1701Additional SGMA information can be found

at:http://www.water.ca.gov/cagroundwater/