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' Ms. =at== _ lson Dat= ' Discharge _ Parameter(s) ?c:-t -x ,eedicc~a imi a ? n ~~ ~~J ~~~ ' ZP~- 1 1 1 I~ Discharge Rate (cfsl T.~ ee~ ~__~ L S ., ~~~~~~~ 5xceedance of applicable permit effluent '_i^i~at_ons =esu_teo frcm: Discharge from snowmelt runoff occurring with'_: :6 hours after n:noff inflows to the pond(s) have stcpp=_d [] Discharce from rainfall runoff occurring within .6 ho::rs after measurable precipitation has stopped Documentation of precipitation and snowmelt oc~:rre^ce a.^.3 snow,Te:t inflows to the ponds is retained at the mi:esite and is available for inspection by authorized agency representat_ves. Copies of relevant temperature/precipitation data are attached for reference. .~11 sedimentation ponds are designed to contain .he full design runoff volume resulting from a 10 year, 24 hour stor-ievent. Stor^~wat=_r storage capacity is in addition to design sedi.ent storage a_~3 any permanent storage capacity. Rerr inspects ail sedimeatat_on ponds on a quarterly basis. Inspections i-c'nde evaluaticr. of accimulated sediment levels relative to des'_gn sediment storage capacity to verify that design stormwater storage capacity is maintained at all times. If inspections indicate =hat sediment accumulations are at or near the design sediment level, Zerr removes ac~.imulated sediment from the pond(s> within a reasonable perio3 (typically 30 to 60 days} following the inspect'_oa. Both pond inspection reports and documentation of pond clean-out are retained at the minesite and are available for irspectica by authorized agency representatives. Based on direct observat_on of pond storage levels at the time discharge ccc::rred, the discharge resulted from: Rainfall or snowmelt runoff volumes less tha^ cr e~sal to the design l0 year, 24 hour storage volL.ce [] Rainfal'_ or snowmelt runoff volumes greater tha: .he design .0 year, 2: hour storage volume