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c ' <br />l <br />ADDRESS ALL CORRESPONDENCE TO: <br />COMMERCIAL TESTING 8 ENGINEERING CO. <br />46°5 PARIS STREET, SURE B-200 <br />DENVER, CO 80239 <br />TEL (303) 373-4772 <br />I FAX: (30:1) 373-4791 <br />COLORADO -CDPS WET TEST REPORT FORM -CHRONIC <br />PERMITTEE: P & M Edna Mine CDPS NO.: CO-0032638 OUTFACE: 007 <br />TYPE TEST: ROUTINE: XX ACCELERATED:_ TEST SPECIES: P. nromelas <br />TEST RESULTS LETHALITY GROWTH STATISTICAL METHOD <br />Concentration with Statistical Difference 75% >100% Steel's Man -One/Dunnett's <br />Pass/Fail Pass N/A <br />IC~PointEstimate 79.5% 91.1% Bootstra <br />Pass/Fail Pass N/A <br />TEST TIME & DATE START 1150 AM 11/04/03 END 1320 PM 11/11/03 <br />DILUTION (% EFFLUENT) <br />MEASUREMENTS CONTROL 12.5% 28.6% 50% 75% 100% <br />Da 1 % Survival 100 100 100 100 100 100 <br />Da 2 100 100 100 100 100 100 <br />Da 3 100 100 100 100 100 100 <br />Da 4 100 100 97.5 100 92.5 67.5 <br />Da 5 100 97.5 95 100 85 65.0 <br />Da 6 100 90 90 97.5 85 65.0 <br />Da 7 97.5 90 85 95 80 52.5 <br /> <br />7 Da Mean D Wei ht 0.537 0.560 0.492 0.484 0.479 0.374 <br /> <br />H Maximurn/Minimum 8.5/7.2 8.4/7.4 8.4f/.5 8.5/7.5 8.5/7.5 8.6/7.4 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CC (mgA): <0.1 <br />HARDNESS (mg/Il: REC'V WATER: EFFLUENT: 2540 RECON WATER: 132 <br />ALKALINITY (ma/D: REC'V WATER: EFFLUENT: 293 RECON WATER: 83 <br />TOTAL AMMONIA (mg/ii: INITIAL 100%: <1.a FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: SGS MINERALS SERVICES DIVISION ANALYST: ) ~') <br />~ Commemial Testing & Engineering Co. Minerals Services -Corporate Office <br />1919 S. Highland Ave., Suite 2108, Lombard, IL 60148 t (6301953-9300 f (6301953-9306 vvvrvv.sgs.com <br />Member of fie SGS GrnuD I.SOLINb Gdnbrale de Surveilltncel <br />