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SGS <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Twentymile Coal Company CDPS NO.: CO-0036684 OUTFACE. 62 FCT <br />TYPE TEST: ROUTINE: ACCELERATED: XX #1 SPECIES: Cenodaphnia dub~a <br />TEST RESULTS: LCD;: >100 STATISTICAL RIETHOD: Probd <br />TEST TIME & DATE: BEGIN 1415 1118!2006 END: 1315 11/10/2006 <br /> <br /> DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 12.5% 25% 50% 75% 100% <br /># ~i START OF <br />TEST: 20 20 20 20 20 20 <br />_ <br />' tt ALIVE AFTER 24 HRS: 20 20 20 17 19 20 <br /># ALIVE AFTER 48 HRS: 20 17 16 11 11 15 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI' (mglL) : <0 1 <br />HARDNESS (mglL): RECEIVING WATER: EFFLUENT: 2120 RECON WATER: 86 <br />ALKALINITY (mg/L): RECEIVING WATER: EFFLUENT: 460 RECON WATER: 60 <br />pH: INITIAL'. CONTROL 8.1 100% EFFLUENT 8.0 <br />FINAL'. CONTROL 8.0 100% EFFLUENT 8.0 <br />TOTAL AMMONIA AS N tmg/L): INITIAL 100°io <1 0 FINAL 100%', <1 0 <br /> <br />WERE ALL TEST CONDITIONS IN CONFOR0.4ANCE WITH DIVISION GUIDELINES YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br /> ;~ ++ <br />LABORATORY: SGS North Amenca Inc ANALYST: Stovko Nguyen, Grimmett, Davis <br />COMMENTS: Accelerated Acute Test -Sample #1 <br />04!08!03 <br />-- G <br />