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L ANI NAIU1t: ban LUIS i ailing earn DATE OF REPORT:August 5.2022 <br /> TAILING DAM INSPECTION FORM <br /> ITEMS REQUIRING ACTION BY OWNER TO IMPROVE THE SAFETY OF THE DAM <br /> MAINTENANCE 0 MINOR REPAIR 0 MONITORING <br /> ❑(1)PROVIDE ADDITIONAL EROSION PROTECTION• <br /> ❑(2)CLEAR BRUSH FROM <br /> ❑(3)INITIATE RODENT CONTROL PROGRAM AND PROPERLY BACKFILL EXISTING HOLES: <br /> ❑(4)GRADE CREST TO A UNIFORM ELEVATION WITH DRAINAGE TO THE UPSTREAV SLOPE. <br /> 0(5)PROVIDE SURFACE DRAINAGE FOR: <br /> 9(6)MONITOR: Continue monitoring riling and gullying at right downstream groin. <br /> ®(7)MONITOR: Continue underdrain jetting cleanout and camera inspection of accessible lengths of underdrain pipes. <br /> 0(8)MONITOR: Per Item 49, continue monitoring erosion along the side slopes of the drop structure, and begin preparing Mitigation <br /> plans for 2023. Mitigation will require erosion repair,followed by reseeding and installation of erosion control blankets, <br /> and/or cutting in shallow swales along the slope to reduce runoff flow path lengths. <br /> ®(9)OTHER: Protect toe drain area from disturbance by cattle. <br /> A(10)OTHER- Per 2020 inspection,consider installing a concrete structure for collection of drain discharges to facilitate access for <br /> 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 /> ❑(11)PREPARE PLANS AND SPECIFICATIONS FOR REHABILITATION OF THE DAM. <br /> ❑(12)PREPARE AS-BUILT DRAWINGS OF: W <br /> 0(13)PERFORM A GEOTECHNICAL INVESTIGATION TO EVALUATE THE STABILITY OF THE DAM: <br /> ❑(14)PERFORM A HYDROLOGIC STUDY TO DETERMINE REQUIRED SIZE OF FLOOD BYPASS/SPILLWAY: <br /> ❑(15)PREPARE PLANS AND SPECIFICATIONS FOR AN ADEQUATE SPILLWAY. <br /> ❑(16)SET UP OR IMPROVE MONITORING SYSTEM: <br /> ❑(17)OTHER: <br /> ❑(18)OTHER: <br /> Figure 1 Overall Site Plan and Photo Log <br /> Figure 2 2022 Annual Dam Safety Inspection <br /> Figure 3 Piezometer Levels <br /> Figure 4 Underdrain Flow <br /> Attachment 2 2022 Inspection Photos <br /> 1Z Photographs (Photos 1-22) jo nts (Piezometer and underdrain data) <br /> ENGINEER'S INSTRUCTION: Instructed o wsj4.45eeN s with the structure and how to monitor and inspect the dam and <br /> appurtenant works in the interim period b :19 ffi}t9�� nspections. ® Yes ❑ No <br /> Comment: <br /> i 33319 <br /> ,o <br /> Professional Engineers Signature: '•• .`� Date: <br /> Reviewed by: — —_--- —Date: <br /> OvmerlOwners Representative <br /> Page 3 of 4 <br />