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t. ENFORCEMENT: Except as otherwise provided in State Mining Regulations, the County shall have authority to enforce provisions of the Surface Mining and Reclamation Act. The County may exercise all enforcement regulations available under the County Development Title and the State Public Resources Code. Such enforcement measures include charging the applicant the costs of administering an enforcement action. The basis for charging fees for an enforcement action shall be a time and materials compensation. (Development Title Section 9-1415.3[t]) u. GROUNDWATER CONDITIONS: The excavation shall not extend below the groundwater. (Development Title Section 9-1415.3[u]) 2. DEPARTMENT OF PUBLIC WORKS (Staff Contact: Gabe Karam, [209] 468-3000) a. The excavation plan shall be prepared by a Registered Civil Engineer or Land Surveyor and include the following: (1) Stockpile area for topsoil. (No excavation or stockpile shall be allowed within 25 feet of the property boundary or the County right-of-way.) (2) Public roads shall be kept free from mud, dirt, and gravel resulting from quarry operations. b. All private roads involved in an excavation shall be maintained so as to control dust. c. Loads on all public roads shall be required to be legal loads only. (Street and Highway Title Section 10-2350) d. An encroachment permit shall be required for work within the road right-of-way. (Development Title Sections 9-1145.4 and 9-1145.5) e. The applicant shall enter into an agreement with the County to pay$.05 per ton of material exported from the quarry site as mitigation for maintenance impact to County roadways used as haul routes. Said payment shall be made in annual installments based on the previous year's tonnage of material quarried. f. The levee which is required along the Mokelumne River shall be shown on cross-sections A-A and C-C. g. The applicant shall apply for a State Reclamation Board Permit, and all conditions of that permit shall be followed, if applicable. h. A geotechnical evaluation shall be performed by a registered professional which establishes the potential for riverine erosion and seepage beneath the levee and determines an appropriate setback. i. The levee elevation shall be at 88.7 NGVD and shall have a 20-foot-wide all-weather roadway. A 100-foot setback from the land side toe shall be required for any excavation, if required by State regulations. NOTE: A Notice of Intent for State Industrial Storm Water or a separate NPDES permit may be required by State Water. PA-0200182 (QX, RA) Revised Conditions of Approval 5 of 6