Laserfiche WebLink
DAM NAME: San Luis Tailing Dam DATE OF REPORT:July 11 2024 <br /> TAILING DAM INSPECTION FORM <br /> ITEMS REQUIRING ACTION BY OWNER TO IMPROVE THE SAFETY OF THE DAM <br /> MAINTENANCE • MINOR REPAIR • MONITORING <br /> L4(1)PROVIDE ADDITIONAL EROSION PROTECTION: Per Items 42 and 49,begin preparing plans to repair erosional rilling Mitigation <br /> should include constructing features along the slope to reduce runoff flow path <br /> lengths,followed by reseeding and installation of erosion control blankets <br /> 1 1(2)CLEAR BRUSH FROM: <br /> El(3)INITIATE RODENT CONTROL PROGRAM AND PROPERLY BACKFILL EXISTING HOLES: <br /> [7(4)GRADE CREST TO A UNIFORM ELEVATION WITH DRAINAGE TO THE UPSTREAM SLOPE: <br /> N(5)Survey the top of internal casing and ground surface at each VWP and standpipe piezometer location <br /> G4(6)MONITOR: Monitor slope along the south side of the south diversion channel drop structure. <br /> G4(7)MONITOR: Continue underdrain jetting cleanout and camera inspection of accessible lengths of underdrain pipes. <br /> G4(8)OTHER: Per Steve Carino,the temporary access berm and culvert to left(south)of the drain outlets will be removed Protect <br /> toe drain area from disturbance by cattle and wildlife. <br /> G^ (9)OTHER: Per 2020 inspection,consider installing a concrete structure for collection of drain discharges to keep the area dry,to <br /> protect the pipes,and to facilitate access for cleanout and monitoring of the drains. <br /> ENGINEERING• EMPLOY AN ENGINEER EXPERIENCED IN DESIGN AND CONSTRUCTION OF DAMS TO: <br /> (Plans and specifications to be Improved by CDRMS prior to construction.) <br /> [1(10)PREPARE PLANS AND SPECIFICATIONS FOR REHABILITATION OF THE DAM: <br /> C7(11)PREPARE AS-BUILT DRAWINGS OF: <br /> 11(12)PERFORM A GEOTECHNICAL INVESTIGATION TO EVALUATE THE STABILITY OF THE DAM. <br /> 0(13)PERFORM A HYDROLOGIC STUDY TO DETERMINE REQUIRED SIZE OF FLOOD BYPASS/SPILLWAY: <br /> ❑(14)PREPARE PLANS AND SPECIFICATIONS FOR AN ADEQUATE SPILLWAY: <br /> U(15)SET UP OR IMPROVE MONITORING SYSTEM: <br /> [1(16)OTHER. <br /> ❑(17)OTHER <br /> Figure 1 Overall Site Plan and Photo Log <br /> Figure 2 2024 Annual Dam Safety Inspection <br /> Figure 3 Piezometer Levels <br /> Figure 4 Underdrain Flow <br /> Attachment 2 2024 Inspection Photos <br /> 1(t(),tit(�t� <br /> M Photographs (Photos 1-18) ® Attas: 'lAiiiiSl,�i��I'b d underdrain data) <br /> ♦••^ 1D �9 <br /> ENGINEER'S INSTRUCTION: Instructed owner on the s. t o1ve n's witrimptiru ) e and how to monitor and inspect the dam and <br /> appurtenant works in the interim period between the reg '.tory Minuai inspectiorv. j • Yes O No <br /> i •• <br /> 3 19 : <br /> Comment: 7 !Q i <br /> /'1. <br /> Professional Engineer's Signature: 4. fp" Date: 'Hhay <br /> Reviewed by: l , ./ Ga-c,;/e-7401 Date: 71/S/2.11 <br /> Owner/Owner's Representative <br /> Page 3 of 4 <br />