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COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE NAME: Western Fuels-Colorado (New Horizon Mine) NPDES NO: OUTFACE NO: 007 <br />TYPE TEST: ROUTINE: X ACCELERATED: _ TEST SPECIES: Fathead Minnows <br />50%MORTALITYTEST: X Pass Fail LCSO: >100%. <br />DATE/I'IME TEST BEGAN: 6/17/97 900 p.m. <br />STATISTICAL METHOD USED: None <br />DATE/1'IME TEST COMPLETED: 6/22/97 9:30 p.m. <br />Measurements <br />Dilutions (% ElDueul) <br />Control Receiving 6.25% 12.5% 25% 50% 100% <br />(0%) Water <br />Initial i 20 na 20 20 20 20 20 <br />Live after 24 hrs 20 na 20 20 20 20 20 <br />after 48 hrs 20 na 20 20 20 20 20 <br />after 72 hrs 20 na 20 20 20 20 20 <br />er 96 hrs 20 na 70 20 70 20 20 <br />RECEIVING WATER USED FOR DILUTION? (Y of N) N TOTAL RESIDUAL CHLORINE, MG/L: <O.OS <br />HARDNESS, MG/L: Receiving Water 1.133• Recon Water 428 Effluent 1918 <br />ALKALINITY, MC/L: Receiving Water: 253• Effluent: 331 Recon: 294 <br />PH INITIAL: Control 8.38 100% 7.71 FINAL: Control 8.30 l00% 7.97 <br />T AMMONIA AS N, MG/L: Initial 100%: 0.14 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 />COMMENTS: <br />ENTAL TESTING.INC. ANALYST: LEE RAWLINGS DATE: 6/23/97 <br />~ Date: ~~ 3/mil <br />• <br />