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' Ms. Patrigiy~i(elson Date_~/'~// ``JJ ' Discharge Parameter(s) FYceedina L•im~tat~on pischarge Rate (cfsl p~te(s1 Lb l 30 ! `T5 ~ 8 ° ~. 2~8 Sz 5~~ OC 3GZ TS S gC~ O.0 ~ <~ ' Cc~ ~ 30 ) 0.13 7 f/ `TS S ~~5~n Exceedance of applicable permit effluent limitations resulted from: ' ~ Discharge from snowmelt runoff occurring within 48 hours after runoff inflows to the pond(s) have stopped ' (] Discharge from rainfall runoff occurring within 48 hours after measurable precipitation has stopped ' Documentation of precipitation and snowmelt occurrence and snowmelt inflows to the ponds is retained at the minesite and is available for inspection by authorized agency representatives. Copies of relevant temperature/precipitation data are attached for reference. All sedimentation ponds are designed to contain the full design runoff volume resulting from a 10 year, 24 hour storm event. Stormwater storage capacity is isi addition to design sediment ' storage and any permanent storage capacity. Kerr inspects all sedimentation ponds on a quarterly basis. Inspections include evaluation of accumulated sediment levels relative to design sediment storage capacity to verify that desiga stormarater storage ' capacity is maintained at all times. If inspections indicate that sediment accumulations are at or near the design sediment level, Kerr removes accumulated sediment from the pond(s) within a ' reasonable period (typically 30 to 60 days) following the inspection. Both pond inspection reports and documentation of pond clean-out are retained at the minesite sad are available for inspection by authorized agency representatives. eased on direct observation of pond storage levels at the dune discharge occurred, the discharge resulted from: I ~ Rainfall or snowmelt runoff volumes less than or equal to the design 10 year, 24 hour storage volume (] Rainfall or snowmelt runoff volumes greater than the design 10 year, 24 hour storage volume