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creek, to preclude the design (as defined by flood waters reaching elevation 297.1 feet in the channel created by the over crossing of Hospital Creek by lnterstate 580) from overtopping the levee system at a line 250 feet to the north of the northern boundary Of the CalTrans drainage easement for Hospital Creek. As appropriate, the long term (i.e., past ruining) maintenance of the levee system to the ' north a€ Hospital Ao pital Creek shall be under the control of an improvement zone,_an,. w part of the Count -wide " nigh is a >•-iqo _ Y d Control District a newly created County Service Area with the responsibility for maintaining the levee, or a newly created Reclamation District, which will be created prior to mining the northern mine area. 5.. HOSPiTAL CREEK SETBACK: Brightly colored pasts shall be installed every 50 feet along both sides of the Hospital Creek mining setback boundary area, which is measured 250 feet back from the centerline of the creek channel. Informational signs shall be. posted every 100 feet which identify fy thi s area as r sensitivity. Brightly color estricted due to its biological g y ed posts shall also be installed on each side both sides of the channel in the immediate vicinity of the Hospital Creek f the haul road on p turd. 't t. SOIL RECONSTRUCTION PLAN: The reclaimed land surface shall be'no less than Z-2 fest above the nigh level of the water table. The final reclaimed upper five feat of matsnai shall consist of the€< < following: a minimurn fine soil Content of 30/ . a..aximum sand cntent of 20%. and a maximum gravel confer:# of 20°/a recorded on a Minimum of 90% of samnies taken at a depth of one to beneath the reclaimed surtace. The samples small also be tested for organic matter with a minimum refluirement of 1%, All recommendations of the Re-Soiling Reveaetation. and ;-rasion Cantrot Plan (contained as AopeRdix D of the =irsal EIR shall be enforced as aoprovriate dudno the life of the mine. U. SEISMIC SAFETY: if strong seismic shaking is experienced at the project site Jas the result of a moderate to large earthquake (M 6 or greater) along the CRSaBZ, ti-ie project site shall be inspected by a ^ualified licensed civil or geotechnical engineer to determine if liquefaction ar seismic subsidence has occurred and resulted in visible damage to reclaimed lands. A report, including recommendations to repair any damage that may have occurred. shall be submitted to the Development Services DiVtSign for review and apprpvai. Upon) aoprovai by the Department Services Division, the proponent shall implement the recommendations set forth 1-h the report. V. CULTURAL RESOURCES: The excavator shall cease all construction and excavation work immediately upon the discovery of cultural resource materials. Such work shall cease until the excavator has complied with the requirements of Appendix K of the C"-'QA Guidelines. W, E,jN`CRC2MENT: Except as otherwise provided in State Mining Reguiatiors, the County shall have authority to enforce provisions of the surface Mining and rReclarnatien 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 adminfs;ering an enforcement action. The l basis for charging fees for an enforcement action shall be a time and materials compensation, (Development Title Set7ilOn 9-1415.2rt1)