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COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE NAME: Western Fuels-Colorado (New Horizon Mine) NPDES NO: <br />TYPE TEST: ROUTINE: X ACCELERATED: <br />50%MORTALITYTEST: X Pass Fail LC50: >100%. <br />DATE/TIME TEST BEGAN: 3/04/97 8:00 p.m. <br />OUTFACE NO: 007 <br />TEST SPECIES: Fathead Minnows <br />STATISTICAL METHOD USED: None <br />DATElFIME TEST COMPLETED: 3/08/97 8:10 p.m. <br />Measurements <br />Dilutions (%Emuent) <br />Control Receiving , ° o o e <br />,,,,,, , ,,, , 6.25 /° 12.5 /° 25 /° 50 /° 100 /° <br />Initial 20 na 20 20 20 20 20 i <br />Live after 24 hrs 20 na 20 20 20 20 20 <br />aker 48 hrs 20 na 20 20 20 20 20 <br />after 72 hrs 20 na 20 20 20 20 20 <br />after 96 hrs 20 na 20 20 20 70 20 <br />RECEIVING WATER USED FOR DILUTION? (Y of N) N TOTAL RESIDUAL CHLORINE, MG/L: <0.05 <br />HARDNESS,MG/L: Receiving Water 1.133• Recon Wa[er 441 Effluent l <br />•ALKALDYITY, MG/L: Receiving Water: 253• Effluent: 388 Recon: 294 <br />PH INITIAL: Control 8.46 l00% 7.86 FINAL: Control 8.40 100% 7.97 <br />T AMMONIA AS N, MG/L: Initial 100%: 0.63 Final 100%: <br />WERE ALL TEST CONDITIONS !N CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST THE DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: W E ENV ONIvfENTALTESTING INC. ANALYST: LEERAWLTNGS DATE: 3/11/97 <br />SIGNATURE: R`iLt/ '~ Date: 3//t/~J7 <br />COMMENT Results for Receivine Water chemistries was taken from Historical data. <br /> <br />