Cal. Code Regs. Tit. 27, div. 2, 1, ch. 7, subch. 1, art. 1, tbl. 1.1

Current through Register 2024 Notice Reg. No. 25, June 21, 2024

Table 1.1 - Summary of Requirements for New and Existing Mining Units

*Type of Requirement*	*New Units*	*Existing Units*	*Exemptions*
Siting	(1) Not on Holocene faults; (2) Outside of areas of rapid geologic change; (3) Peak streamflow protection as in Table 1.2	Peak streamflow protection as in Table 1.2, as required by RWQCBs.	New Units may be sited in areas of rapid geologic change if containment structures designed and constructed to preclude failure.
Construction	(1) Liners or maximum natural permeability as in Table 1.2;	Precipitation and drainage controls.	(1) No liners or leachate collection and removal systems required for Group C Units.
	(2) Leachate collection and removal system as in Table 1.3;		(2) New waste piles may be exempted from liners and leachate collection and
	(3) Precipitation and drainage controls.		removal systems if it can be demonstrated that leachate will not form or escape--contingency plan required, and additional monitoring may be required.
Monitoring	(1) Ground water and surface water;	None.
	(2) Unsaturated zone monitoring as feasible.
Closure and Post-Closure Maintenance	Closed and maintained in accordance with § 22510.	None.