Cal. Code Regs. tit. 23 § 344.12

Current through Register 2024 Notice Reg. No. 50, December 13, 2024

Section 344.12 - Hydrogeologic Conceptual Model

(a) Each request for boundary modification shall include a clearly defined hydrogeologic conceptual model demonstrating the following for the proposed basin or subbasin:

(1) Principal aquifers.

(2) Lateral boundaries, including:

(A) Geologic features that significantly impede or impact groundwater flow.

(B) Aquifer characteristics that significantly impede or impact groundwater flow.

(C) Significant geologic and hydrologic features and conditions of the principal aquifers, as appropriate, including information regarding the confined or unconfined nature of the aquifers, facies changes, truncation of units, the presence of faults or folds that impede groundwater flow, or other groundwater flow restricting features.

(D) Key surface water bodies, groundwater divides and significant recharge sources.

(3) Recharge and discharge areas within or adjacent to the basin or subbasin.

(4) Definable bottom of the basin or subbasin.

(b) The Department may waive the requirement of this section for an internal boundary modification pursuant to Section 342.4(a) if the requesting agency is able to demonstrate that the proposed boundary modification is unlikely to affect sustainable groundwater management.

Cal. Code Regs. Tit. 23, § 344.12

1. New section filed 11-6-2015 as an emergency and exempt from review by the Office of Administrative Law pursuant to subdivision (b) of Water Code section 10722.2; operative 11-16-2015 and, pursuant to subdivision (b) of Water Code section 10722.2, shall remain in effect until revised by the Department of Water Resources (Register 2015, No. 45).

Note: Authority cited: Section 10722.2, Water Code. Reference: Sections 10722.2 and 12924, Water Code.