Eastern Tule GSA Draft GSP | Section 4 Section 4. Basin Setting Table of Contents SECTION 4. BASIN SETTING ............................................................................................................................... 4-I TABLE OF CONTENTS........................................................................................................................................... 4-I 4.1 INTRODUCTION [23 CCR § 354.12] ........................................................................................................ 4-1 4.2 HYDROGEOLOGIC CONCEPTUAL MODEL [23 CCR § 354.14(A)] ..................................................................... 4-1 4.2.1 GEOLOGIC SETTING [23 CCR § 354.14(B)(1), (C), (D)(1)(2)(3)] ............................................................. 4-2 4.2.2 LATERAL BASIN BOUNDARY [23 CCR § 354.14 (B)(2)] .......................................................................... 4-3 4.2.3 BOTTOM OF BASIN [23 CCR § 354.14 (B)(3)] ....................................................................................... 4-3 4.2.4 SURFACE WATER FEATURES [23 CCR § 354.14 (D)(5)] ......................................................................... 4-4 4.2.4.1 Lake Success ................................................................................................................................................. 4-4 4.2.4.2 Tule River ..................................................................................................................................................... 4-4 4.2.4.3 Deer Creek .................................................................................................................................................... 4-4 4.2.4.4 White River ................................................................................................................................................... 4-4 4.2.4.5 Imported Water [23 CCR §354.14(d)(6)] ...................................................................................................... 4-5 4.2.5 AREAS OF GROUNDWATER RECHARGE AND DISCHARGE [23 CCR § 354.14(D)(4)] ............................. 4-5 4.2.6 PRINCIPAL AQUIFERS AND AQUITARDS ............................................................................................... 4-5 4.2.6.1 Aquifer Formations [23 CCR § 354.14(b)(4)(A)] ............................................................................................ 4-5 4.2.6.2 Aquifer Physical Properties [23 CCR § 354.14(b)(4)(B)] ................................................................................ 4-6 4.2.6.3 Geologic Structures that Affect Groundwater Flow [23 CCR § 354.14(b)(4)(C)] ........................................... 4-7 4.2.6.4 Aquifer Water Quality [23 CCR § 354.14(b)(4)(D)] ....................................................................................... 4-7 4.2.6.5 Aquifer Primary Uses [23 CCR § 354.14(b)(4)(E)] ......................................................................................... 4-8 4.2.7 UNCERTAINTY IN THE HYDROGEOLOGIC CONCEPTUAL MODEL [23 CCR § 354.14(B)(5)] ................... 4-8 4.3 GROUNDWATER CONDITIONS [23 CCR § 354.16] ...................................................................................... 4-8 4.3.1 GROUNDWATER OCCURRENCE AND FLOW [23 CCR § 354.16 (A)] ...................................................... 4-9 4.3.2 GROUNDWATER STORAGE [23 CCR § 354.16 (B)] ............................................................................. 4-10 4.3.3 SEAWATER INTRUSION [23 CCR § 354.16 (C)] ................................................................................... 4-10 4.3.4 GROUNDWATER QUALITY ISSUES [23 CCR § 354.16 (D)]................................................................... 4-10 4.3.5 SUBSIDENCE [23 CCR § 354.16 (E)] .................................................................................................... 4-10 4.3.6 INTERCONNECTED SURFACE WATER SYSTEMS [23 CCR § 354.16 (F)] ............................................... 4-11 4.3.7 GROUNDWATER DEPENDENT ECOSYSTEMS [23 CCR § 354.16 (G)] .................................................. 4-12 4.4 WATER BUDGET [ 23 CCR § 354.18(A)] ................................................................................................. 4-12 4.4.1 SURFACE WATER BUDGET [23 CCR § 354.18(B)(1)] ........................................................................... 4-13 4.4.1.1 Surface Water Inflow ................................................................................................................................. 4-14 4.4.1.2 Surface Water Outflow .............................................................................................................................. 4-15 4.4.2 GROUNDWATER BUDGET .................................................................................................................. 4-20 4.4.2.1 Sources of Groundwater Recharge [23 CCR § 354.18(b)(2)] ....................................................................... 4-21 4-i Eastern Tule GSA Draft GSP | Section 4 4.4.2.2 Sources of Groundwater Discharge [23 CCR § 354.18(b)(3)] ...................................................................... 4-23 4.4.2.3 Change in Groundwater Storage [23 CCR § 354.18(b)(4)] .......................................................................... 4-24 4.4.2.4 Overdraft [23 CCR § 354.18(b)(5)] .............................................................................................................. 4-25 4.4.2.5 Water Year Type [23 CCR § 354.18(b)(6)] .................................................................................................. 4-25 4.4.2.6 Sustainable Yield [23 CCR § 354.18(b)(7)] .................................................................................................. 4-25 4.4.3 CURRENT WATER BUDGET [23 CCR § 354.18(C)(1)] .......................................................................... 4-26 4.4.4 HISTORICAL WATER BUDGET [23 CCR § 354.18(C)(2)(A)(B)(C)] ......................................................... 4-27 4.4.5 PROJECTED WATER BUDGET [23 CCR § 354.18(C)(3)] ....................................................................... 4-27 4.5 MANAGEMENT AREAS [23 CCR § 354.20(A), § 354.20(C)] ....................................................................... 4-28 4.5.1 REASON FOR CREATION [23 CCR § 354.20(B)(1)] .............................................................................. 4-29 4.5.2 MINIMUM THRESHOLDS AND MEASURABLE OBJECTIVES [23 CCR § 354.20(B)(2)] .......................... 4-30 4.5.3 MONITORING [23 CCR § 354.20(B)(3)] .............................................................................................. 4-30 4.5.4 COORDINATION WITH ADJACENT AREAS [23 CCR § 354.20(B)(4)] .................................................... 4-31 Table of Figures Figure 4-1: ETGSA Management Areas .................................................................................................... 4-29 List of Tables Table 4-1: Components of CCR § 354.14 (HCM, ETGSA) ............................................................................ 4-2 Table 4-2: Components of 23 CCR § 354.16 (Groundwater Conditions, ETGSA) ....................................... 4-9 Table 4-3: Components of 23 CCR § 354.18 (Water Budget, ETGSA) ...................................................... 4-13 Table 4-4: Components of 23 CCR § 354.20 (Management Areas, ETGSA) ............................................. 4-28 4-ii Eastern Tule GSA Draft GSP | Section 4 4.1 Introduction [23 CCR § 354.12] 23 Cal. Code Regs. § 354.12 Introduction to Basin Setting. This Subarticle describes the information about the physical setting and characteristics of the basin and current conditions of the basin that shall be part of each Plan, including the identification of data gaps and levels of uncertainty, which comprise the basin setting that serves as the basis for defining and assessing reasonable sustainable management criteria and projects and management actions. Information provided pursuant to this Subarticle shall be prepared by or under the direction of a professional geologist or professional engineer. The Basin Setting for the ETGSA is derived from the Tule Subbasin Setting, which was developed for the Tule Subbasin by Thomas Harder and Company, The Tule Subbasin Setting can be found as Attachment 1 to the Tule Subbasin Coordination Agreement. This section of the GSP describes information about the physical setting and characteristics of the basin and its current conditions by providing reference to the Tule Subbasin Basin Setting and, when necessary, providing additional information that is particularly related to the ETGSA. A description of the Tule Subbasin’s physical setting, including its location, size, and jurisdictional areas is described in the introduction of the Tule Subbasin Setting. ETGSA’s physical setting within the Tule Subbasin and its Plan Area is described in Section 3.1: ETGSA Plan Area of this plan. 4.2 Hydrogeologic Conceptual Model [23 CCR § 354.14(a)] 23 Cal. Code Regs. § 354.14 Hydrogeologic Conceptual Model. (a) Each Plan shall include a descriptive hydrogeologic conceptual model of the basin based on technical studies and qualified maps that characterizes the physical components and interaction of the surface water and groundwater systems in the basin. The Hydrogeologic Conceptual Model (hereafter, “Hydrogeologic Conceptual Model”) for the Tule Subbasin is described in Chapter 2.1: Hydrogeologic Conceptual Model of the Tule Subbasin Setting.: