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COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Twentymile Coal Comoanv CDPS NO.: CO-0027154 OUTFACE: OOI, Pond A <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: D. mn2na <br />TEST RESULTS: LCSO: >100% STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN 1430 PM 01/22/02 END 1340 PM 01/24/02 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 12.5% 25% 50% 75% 100% <br />TART OF TEST: 20 20 20 20 20 20 <br />E AFTER 24 HRS: 20 20 20 20 20 20 <br />VE AFTER 48 HRS: 20 20 20 20 20 17 <br /> <br /> <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. Cl " (mg/1): <0.1 <br />HARDNESS (mg/1): RECEIVING WATER: EFFLUENT: 2165 RECON WATER: 215 <br />ALKALINITY (mg/I): RECEP/ING WATER: EFFLUENT: 210 RECON WATER: 155 <br />pH: INITIAL: CONTROL 8.7 100% EFFLUENT 7.8 <br />FINAL: CONTROL 8.5 ] 00% EFFLUENT 8.2 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%: <1.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? NO <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: The CTE Laboratory performed a bioassay <br />on expired effluent at the request of Twentymule Coal Company staff in the hopes of complying with 4"' <br />quarter (2001) dischazees at Site #39, Pond A. <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: <br />COMMENTS: <br />4/14/99 <br />