Cal. Code Regs. tit. 23 § 344.14

Current through Register 2024 Notice Reg. No. 50, December 13, 2024
Section 344.14 - Technical Information for Scientific Modifications
(a) Each request for a scientific modification pursuant to Section 342.2 shall include information that demonstrates the extent of the aquifers, including the following:
(1) A qualified map that depicts the lateral boundaries of the aquifers that define the basin or subbasin.
(2) A technical study that provides subsurface data demonstrating the vertical thickness and relevant physical properties of the aquifers, such as hydrogeologic cross section(s), if available.
(b) In addition to the information required in Section 344.14(a), each request for scientific modification involving a hydrogeologic barrier pursuant to Section 342.2(b) shall demonstrate the presence or absence of impediments to subsurface groundwater flow, such as impermeable material, a fault, or groundwater divide, based on the following information:
(1) A qualified map depicting geologic structures or features that could significantly impact or impede groundwater flow.
(2) A technical study that provides geologic and hydrologic evidence of groundwater conditions including, as appropriate:
(A) Historical and current potentiometric surface maps, groundwater levels, groundwater recharge and discharge areas of the aquifers within the vicinity of proposed boundary modification.
(B) Aquifer testing results demonstrating boundary condition response.
(C) Water quality information of the aquifers including but not limited to general water quality parameters and isotopic analysis.
(D) Geophysical investigations and supporting data.
(E) Other information that the requesting agency considers relevant to the boundary modification request.
(c) Other technical information required by the Department that is necessary to evaluate a boundary modification request made pursuant to Section 342.2.
(d) A request for a scientific modification to an external boundary pursuant to Section 342.2(a) may utilize any of the information in Section 344.14(b) if the requesting agency believes it may assist the Department in its evaluation.

Cal. Code Regs. Tit. 23, § 344.14

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.

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).