California Code of Regulations, Title 23

1 California Code of Regulations, Title 23 ( ) Excerpts of Divisions 2, 3, and 5 Applicable to the Administration of Water Rights and SGMA (Current as of January 1, 2021) JANUARY 2021 California STATE WATER RESOURCES CONTROL STATE OF California Jerry Brown, Governor STATE WATER RESOURCES CONTROL BOARD Joaquin Esquivel, Chair Tam Doduc, Member Dorene D Adamo, Member Sean Maguire, Member Laurel Firestone, Member Eileen Sobeck, Executive Director Jonathan Bishop, Chief Deputy Director Eric Oppenheimer, Chief Deputy Director Compiled by the Office of Chief Counsel For additional copies or further information, contact the State Water Resources Control Board, Division of Water Rights (916)

2 341-5300 i California State Water Resources Control Board STATE WATER RESOURCES CONTROL BOARD AND California REGIONAL WATER QUALITY CONTROL BOARDS The State Water Resources Control Board was established in 1967 by the Legislature. The Board succeeded to the functions of the former State Water Rights Board and the State Water Quality Control Board. The nine California Regional Water Quality Control Boards were originally established in the Dickey Water Pollution Control Act of 1949. Together the ten water boards have primarily responsibility for implementing and enforcing the Porter-Cologne Water Quality Control Act.

3 This pamphlet contains portions of the California Code of Regulations applicable to the State Water Resources Control Board s administration of water rights. The State Water Resources Control Board publishes this collection as part of its public information program. This booklet is provided as a public service. While every effort is made to assure accuracy, persons should consult the official version of the California Code of Regulations when making legal decisions. The Office of Administrative Law maintains the official code of regulations, which is accessible on the Internet at: ii Title 23, DIVISIONS 3- 5, California CODE OF REGULATIONS JANUARY 2021 iii California State Water Resources Control Board TABLE OF CONTENTS Table of Contents _____ iii Title .

4 23 Waters _____ 1 Division 2. Department of Water Resources_____ 1 Chapter Groundwater Management _____ 1 Subchapter 1. Groundwater Basin Boundaries _____ 1 Article 1. Introductory Provisions _____ 1 340. Authority and Purpose. _____ 1 Intent. _____ 1 Basin 1 Article 2. Definitions _____ 2 341. Definitions. _____ 2 Article 3. Boundary Modification Categories _____ 5 342. Introduction to Boundary Modifications. _____ 5 Scientific Modification. _____ 5 Jurisdictional Modification. _____ 5 Other Boundary Modifications. _____ 6 Article 4. Procedures for Modification Request and Public Input ___ 6 343. Introduction to Procedures.

5 _____ 6 Eligibility to Request Boundary Modification. _____ 6 Forms and Instructions. _____ 7 Combination of Requests. _____ 7 Submission Periods. _____ 7 Initial Notification. _____ 8 Status of Request. _____ 8 Public Input. _____ 9 Withdrawal of Request. _____ 10 Article 5. Supporting Information _____ 10 344. Introduction to Supporting Information. _____ 10 Requesting Agency Information. _____ 11 Notice and Consultation. _____ 11 Description of Proposed Boundary Modification. ___ 12 Local Agency Input. _____ 13 General Information. _____ 14 Hydrogeologic Conceptual Model. _____ 14 Technical Information for Scientific Modifications.

6 _ 15 Technical Information for Jurisdictional Modifications. _____ 16 CEQA Compliance. _____ 17 iv Title 23, DIVISIONS 3- 5, California CODE OF REGULATIONS JANUARY 2021 Article 6. Methodology and Criteria for Evaluation _____ 17 345. Introduction to Methodology and Criteria for Evaluation. _____ 17 Basis for Denial of Request for Boundary Modification. _____ 18 Criteria for Evaluating Supporting Information. _____ 19 Article 7. Adoption of Boundary Modification _____ 21 346. Introduction to Department Procedures. _____ 21 Presentation of Draft Boundary Modifications. _____ 21 Record of Boundary 22 Subsequent Modifications by Department.

7 _____ 22 Subchapter 2. Groundwater Sustainability Plans _____ 22 Article 1. Introductory Provisions _____ 22 350. Authority and Purpose. _____ 23 Applicability. _____ 23 General Principles. _____ 23 Article 2. Definitions _____ 24 351. Definitions. _____ 24 Article 3. Technical and Reporting Standards _____ 28 352. Introduction to Technical and Reporting Standards. ___ 28 Monitoring Protocols. _____ 28 Data and Reporting Standards. _____ 28 Data Management System. _____ 31 Article 4. Procedures _____ 31 353. Introduction to Procedures. _____ 31 Information Provided by the Department. _____ 31 Reporting Provisions.

8 _____ 32 Initial Notification. _____ 32 Comments. _____ 33 Withdrawal or Amendment of Plan. _____ 33 Article 5. Plan Contents _____ 33 354. Introduction to Plan Contents. _____ 33 Subarticle 1. Administrative Information _____ 34 Introduction to Administrative Information. _____ 34 General Information. _____ 34 Agency Information. _____ 34 Description of Plan Area. _____ 35 Notice and Communication. _____ 36 Subarticle 2. Basin Setting _____ 37 Introduction to Basin Setting. _____ 37 Hydrogeologic Conceptual Model. _____ 38 Groundwater Conditions. _____ 39 v California State Water Resources Control Board Water Budget.

9 _____ 40 Management Areas. _____ 42 Subarticle 3. Sustainable Management Criteria _____ 43 Introduction to Sustainable Management Criteria. _ 43 Sustainability Goal. _____ 43 Undesirable Results. _____ 44 Minimum Thresholds. _____ 45 Measurable Objectives. _____ 47 Subarticle 4. Monitoring Networks _____ 48 Introduction to Monitoring Networks. _____ 48 Monitoring Network. _____ 48 Representative Monitoring. _____ 51 Assessment and Improvement of Monitoring Network. _____ 52 Reporting Monitoring Data to the Department. ___ 52 Subarticle 5. Projects and Management Actions _____ 53 Introduction to Projects and Management Actions.

10 53 Projects and Management Actions. _____ 53 Article 6. Department Evaluation and Assessment _____ 54 355. Introduction to Department Evaluation and Assessment. _____ 54 Department Review of Adopted Plan. _____ 55 Criteria for Plan Evaluation. _____ 56 Periodic Review of Plan by Department. _____ 58 Department Review of Annual Reports. _____ 59 Plan Amendments. _____ 59 Article 7. Annual Reports and Periodic Evaluations by the Agency _ 60 356. Introduction to Annual Reports and Periodic Evaluations by the Agency. _____ 60 Annual Reports. _____ 60 Periodic Evaluation by Agency. _____ 62 Article 8. Interagency Agreements _____ 63 357.