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COLORADO -CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Seneca Coal Comaanv CDPS NO. CO-0000221 OUTFACE WTF <br />TEST TYPE: ROUTINE XX ACCELERATED _ TEST SPECIES C. dubia <br />TEST RESULTS LETHALITY GROVYTH STATISTICAL METHOD <br />Concentration w! Statistical Difference >100% > t 00 %~ Frsher's/Dunnett's <br />PasslFatl Pass N1A <br />IC2a >700% >100% BOOtstrap <br />Pass/Fad Pass NIA <br />TEST TIME & DATE START Aoril 24 2007 ENO Mav 1.2007 <br />10 00 AM t 0 00 AM <br />DILUTION (°k EFFLUENT) <br />MEASUREMENTS CONTROL 6.50% 13.0096 25.00% 50.00'7. 10096 <br />Da t % Survival 100 100 100 t00 100 100 <br />Da 2 100 100 100 100 t00 700 <br />Oa 3 700 t00 100 100 100 100 <br />Dav 4 100 700 100 700 100 100 <br />Da 5 100 100 100 100 100 100 <br />Da 6 100 t00 100 100 100 100 <br />Da 7 100 700 100 100 100 t00 <br /> <br />Mean 3 Broad Total 24 24 7 29 4 28.5 24 26 <br /> <br />H ;Maxnnun•.,M~n~mum) 7.23-7.56 i 28-7 41 7 23-7 6~ 7 31-7 67 7.35-7.78 7.49-7 78 <br />RECEIVING WATER USED FOR DILUTIONS NO <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINESS YES <br />IF NO, LIST AlL DEVIATIONS <br />HARDNESS (MGlL EFFLUENT 1980-2050 MHW WATER B0.5 <br />ALKALINITY (MGlLI EFFLUENT 213.4-135.6 MHW WATER 70.9 <br />T AMMONIA (MGlL) INITIAL EFFLUENT <1.0 <br />T RESIDUAL CHLORINE (MGIL) EFFLUENT. <0.1 <br />' <br /> ?~ <br />~ <br />LABORATORY ENVIRO-CHEM ANALYTICAL, INC. ANALYST: ~ ~ <br />: <br />i L'-: , <br />