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_,;_ <br />V. I?vdrolozic Balance: Su=face ?:a*_sr - Pules 2.04.5. 2.04.7, 2.05.3(4_), <br />_ 2.05.6(3), and 4.05 (con't) <br />~• requires that Salt Cree'c :lininb Cempa:y locate the monitoring site on a <br />r.~ap and provide an adequate designation for reference. The location is <br />subject to approval by the Division. ibis monitoring network :,ill be <br />sufficient to identify any effects oz t::^.e operation on surface water. <br />The fcilowing stipulation is necessa-~ to ensura the prover monitoring of <br />affects of the operation on the sur.ate water h}•drology. <br />3. SURFACE ?CATER :fO5IT03I::G: <br />1) FLO?d PIEASL~E`~~TS ;![:ST BE T _~1 AT SURFACE ?lAIER itONITOP.I:?C SITE <br />S?:-2 A.`+D WATER S.~*IPLES SIiAI,L BE T.1vy: FROF! SITES S•d-2 ?ND SW-5 ON 2IcCI,A`iE <br />CANON TIdICE A YEAR (AT DIriE.°,E:•:T i!'.''-.S OF THE ?E~1R) AS FOLLOIdS: <br />a) ONCE DURIFC SPRING SNC?~ ~ T <br />b) O2:CE DURING A STOR`! EVEN <br />2) FLOI.1 i•IEASURFti~NTS ?NST BE TA:.^! QUARTERLY FROcI SITE $?.T-1 AND ?DATER <br />SA~L'LES :!L'ST BE TAF:uI OU?1ZT~YLY e..Oll SITES SW-1 AND THE NEId PIONITORZNG <br />SITE ON EAST SALT CREEK (?~dICH 2lUST BE LOCAi'"'ED OiI A ?fAP WITH A SPECIFIC <br />DESIG\ATION AND lNST BE AP?ROVED 3Y in'O.. DIVISION). <br />3) THE ?+ATER SA`PLES MUST BE C".iiICAI.LY ASALYZED FOR THE PAR?i~fdTERS <br />SPECIFIID BELOW: <br />pH <br />Specific Conductance <br />~~ Ter~perature(field) <br />Dissolved Oxygen(field) <br />- Total Suspended Solids <br />Total Dissolved Solids <br />Total Combustible Solids <br />Total Y.ardness <br />Sodium Absorption Sodi:~(Na+) <br />Ratio Sulfate(SO4) <br />Bicarbonate(HC03) Aluaintan(A1) <br />Calcium(Cs+'-) Arsenic(As) <br />Magnesium(:•igT2) Boron(B) _ <br /> Caamium(Cd) <br /> Copper(Cu) <br /> Iron(Fe) <br />Lead(Pb) <br />Plangonese(*In) <br />?iercury(Hg) <br />?Iolybdenum (~Io) <br />Selenium(Sej <br />Zinc(Zn) <br />4) THE RESLZTS OF ALL MONITORItiG ~SL'ST BE SUB*LITTED'TO THE DIVISION <br />IPL`D:DIATELY AFTER DATA COLLECTIO:: AVD ANALYSIS. <br />The only aspects of the operation vhiG1 could potentially impact the surface <br />water in adjacent areas are the face up, mine bench and roads. A.sedimentation <br />system approved by the Division and in coapiiance with the regulations will <br />route undisturbed flow around the disturbance and will conduct all flow from the <br />disturbed area through a properly sized sedimentation pond. The water contained <br />in [he sedimentation pond will be released into the natural drainage only <br />after it is determined thap the discharged water vi11 meet all applicable <br />effluent standards. - <br />The pond design for the t•IcClane Canyon nine is adequate vith respect to <br />size and location. However, no provisions have been made for dewatering <br />the pond at the maximum sediaent level. Salt Creek Ptininb Company has <br />agreed to install a devatering device in the pond. This dewaterino device <br />will ensure that the pond will at al'_ times be capable of containing the <br />10 year-24 hour runoff event. <br />Some ditches represented in the nine plat. indicated high, poter.tial~• erosive, <br />~.~ velodties when carryiag the flow frcm the 10 pear-24 hour event, These <br />ditches are, for [he Host part, natural drains cos that existed prior to mine <br />devele^nenc. The material in the dire'.'.^.es consists of large roc4:s and beuroc~. <br />These di~thes are therefore considered to be non-erosive and stable. <br />