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..cam Durine a site ins*rt.ion on April 12, 1988 ~seepaee ryas noted <br />in the vicinity of the No. 1 Piine portal area. During a site in- <br />spection on a\pril 28th the seepaee ryas discovered r~hich led ko <br />the April 'L9th notification to GIs. Torrez. <br />The seeps enterine North Thompson Creels were sampled on ;\pril <br />`L9t.h, .\pril 30th and Pla}• lst. The results of the anal}-sis of the <br />samples are as t'oll.ows. <br /> (/29/88 •1!30188 5/1/88 <br />pH 6.71 (i.66 6.82 <br />Temp. ~C 7d 15 I1.~ <br />L/C mmhos/cm 3.811 :1.83 3.73 <br />Dissolved Solids me/L 3170 3180 31iU <br />Suspended Solids me/I Ii]U 2l'LU 1485 <br />Rer m-nrahl.e Iron me/L Lll.'l L18.0 121.2 <br />Recoverable Cadmium me/L 0.00091 O.OU1'L 0.00080 <br />Oil and Grease me/1 < 5.U < 5.0 < 5.U <br />Plow epm 5.0 5.U <br />On April aUth rorlc was started t.o etcavate the portal area in a <br />effort to isolate an~.1 eont.ain the seeps. Icor•Ic on this area was <br />ver}• sJ.ow her,ause access had to be d?~-eloped to the reclaimed <br />areas prior t.o etcavat.ion proeressine. Uurinlr the excavation <br />process measurahle flora were discovered romine fr•nm two separate <br />areas. Ramples of these t.rm flows c:ere t.alcen nn Pla}- 3rd and the <br />results of the anal psis of the samples are as follrn:s: <br />pll 6.81i (i.8:1 <br />Temp. ~C 11 1I <br />E/C mmhos/cm ;1.97 ~I.ll <br />Dissolved Solids me/I a6I5 :Si00 <br />Suspended Solids me/1 2205 19115 <br />Recoverahle Iron me/1 1:15.2 130.1 <br />Recoverable Cadmium me/1 U.DUU81 0.00078 <br />f)iL and (cease me/L < 5.U < 5.U <br />Plow r;pm 8.3 lli. I <br />8v mid mnrnine nn Play- fit( the floc`s r.nmine from the portal area <br />are believed to he int.ercept.ed and the flows are beine piped t.o <br />an esistine sediment pond. The area will he watched to confirm <br />that. all of the seeps are in fact. intercepted. <br />Treatment. ponds are eoine to he constructed on site in order to <br />treat the water prior t.o it. being discharged into North 'Thompson <br />Cree{c. A request for a permit modification will he forwarded to <br />the UeparY.ment. of Health in the near future. <br />If y-ou have any questions reeardine this matter please r_a.11. <br />SLncere.ly, <br />J.im Stover, F.G. <br />Chief Engineer <br />rc: Candace Thompson <br />