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. COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />•PERMITTEE NAME: Western Fuels-Colorado (New Horizon Mine) NPDES NO: OUTFACE NO: 001 <br />TYPE OF TEST: ROUTINE: X ACCELERATED: _ TEST SPECIES: Ceriodanhnia dubia <br />50%MORTALITYTEST: 7C Pass _Fail LC50: >100%. STATISTICAL METHOD USED: None <br />DATE(TIME TEST BEGAN: 3/04197 7:40 p.m. DATEII'IMF. TEST COMPLETED: 3/06/97 8:00 p.m. <br />MEASUREMENTS <br />Dilutions (°/. ElBueot) <br />Control Receivin <br />(0%) Wsterg 6.25% 12.5% 25% 50% 100% <br />Initial 20 na 20 20 20 20 20 <br />Alive after 24 hrs 20 na 20 20 20 20 20 <br />after 4R hrs 20 na 19 20 20 20 20 <br />RECEIVING WATER USED FOR DILUTION? (Y of N) N TOTAL RESIDUAL CHLORINE, MG/L: <0.05 <br />HARDNESS, MG/L: Receiving Water I.I 13• ER1uent 2.183 Recon Water 441 <br />ALKALINITY,MG/L: Receiving Water 412' Eliluent 372 Recon Water 294 <br />PH: INITIAL-Control 8.47 100% 8.08 FINAL- Control 8.49 100% 8.09 <br />•T AMMONIA AS N, MG/L: Initial 100% 0.05 Final 100% <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST THE DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: <br />SIGNATURE: <br />ANALYST: Lee Rawlines DATE: 3/11/97 <br /> <br />