Laserfiche WebLink
W.E.T. Inc. <br />6 19y7 li; <br />Acute Whole Effluent Toxicity <br />Fathead Minnow <br />PERMITTEE NAME: Western Fuels Colorado SIGHT ID: New Horizon Mine <br />DATE: October 2, 1997 <br />TEST (Anima!/Age): Fathead Minnow, 7 days. <br />a,. . <br />OUTFACE NO: 007 <br />SAMPLE (DaraJType): 9/26/97 Grab. <br />DATE/I'IME TEST BEGAN: 9/27/97 6:05 p.m. DATEITIME TEST COMPLETED: 10/2/97 6:15 p.m. <br />TEST CONDITIONS <br />Fathead Minnow larvae were exposed to diluted eft7uent as specified by the permit. At the end of the test period Survival was <br />measured to determine if Acute Toxicity was present in the sample. <br />Animal Age at Test Start <br />Number of Orgaoisms/Dilution Volume/Replicates <br />Food <br />• <br />Aeration <br />Dissolved Oxygeu <br />Water Replacement <br />Temperature <br />Photo Period <br />pH <br />Dilution Water <br />Receiving Water <br />Fathead Minnow, 7 days. <br />10 organisms/150 mU2 replicates <br />Fed before starting test and at 48 hours, newly hatched <br />brine shrimp. <br />None requved. <br />Measured daily old/new. <br />Renewed daily. <br />20 + I degrees C. <br />16 hours light 8 hours dark. <br />Measured initially and at 24 hours. <br />Reconstituted water (±IS°:° hardness ofthe receiving <br />water). <br />None was supplied. <br />l00%. <br />SUMMARY <br />Results: X Pass Fail <br />There was NO significant effect on survival. <br />Enclosed are data sheets and statistical reports. <br />~L,ee Rawlings <br />Water & Environmental Testing, Lnc. <br />Enclosure <br />