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COLORADO -CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: Twentymile Coal Co. CDPS N0. CO-0027] 54 OUTFACE: 005 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: Ppromelas <br />TEST RESULTS LETHALITY GROWTH STATISTICAL METHOD <br />Concentration with Statistical Difference >]00% >100°/a Steel'slDunnett's <br />Pass/Fail Pass N/A <br />ICzs >100% >]00°!° Bootstra <br />Pass/Fail Pass N!A <br />TEST TIME & DATE START 0950 AM 01!2310] END 0855 AM 01/30/0] <br />DILUTION (% EFFLUENT) <br />1 <br /> <br />1 <br /> <br />1 <br />1 <br />J <br />COMMERCIAL TESTING & ENGINEERING CO. <br />4/14/99 <br />MEASUREMENTS CONTROL 12.5% 25% 50% 75% 100°l0 <br />Da 1 % Survival 100 100 ] 00 100 100 ] 00 <br />Da 2 100 ]00 100 100 100 100 <br />Da 3 100 ]00 100 100 ]00 ]00 <br />Da 4 100 95 100 100 100 ]00 <br />Da 5 100 95 l00 100 97.5 100 <br />Da 6 ]00 95 100 100 97.5 ]00 <br />Da 7 ] 00 95 100 100 97.5 100 <br /> <br />7 Da Mean D Wei ht 0.417 0.456 0.487 0.509 0.643 0.616 <br /> <br />H (Maximum/Minimum) 8.6/8,0 8.5/8.3 8.6/8.2 8.7/8.1 8.6/8.0 8.4!7.9 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI" (mg/I): <0. ] <br />HARDNESS Imp/1): REC'V WATER: EFFLUENT: 915 RECON WATER ]08 <br />ALKALINITY (mpll): REC'V WATER EFFLUENT: 703 RECON WATER 88 <br />TOT AMMONIA (mom): INITIAL 100%: <1.0 FINAL 100%: <1 0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />=~~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: CGt,t..,: ~~-~^s` <br />F-466 <br />'Original Watermarked For Vour ProteMion <br />w,w <br />