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<br />TABLE J-2. BIOMONITORING TESTING FOR TOXICITY, 1993 WATER YEAR AT THE MT. GUNNISON NO. 1 MINE <br />Discharge Monitoring Period Date of Sample Test IWC = 1.9 <br />Point P/F Statre 48-hour P/F Statre 96-hour <br /> ACU Ceriodaphnia CHR Pimephales Promelas <br /> Control LC=50 LC=1.9 Status Control LC=50 LC=1.9 Status <br /> Mortali •LC=6 Mortali 'LC=6 <br />002W 01 Oct 92 - 31 Dec 92 No Discharge <br /> 01 Jan 93 - 31 Mar 93 18 Feb 93 0 100 10 Fail 0 100 0 Fail <br /> 19 Mar 93 10 5 0 Pass 5 5 0 Pass <br /> 24 Mar 93 5 0 0• Pass 0 0 0 Pass <br /> 01 Apr 93 - 30 Jun 93 01 Apr 93 5 0 5 Pass 0 0 0 Pass <br /> 01 Jul 93 - 30 Sep 93 05 Aug 93 10 0 0 Pass 0 0 0 Pass <br />011 W Ot Oct 92 - 31 Dec 92 No Discharge <br />011 X 01 Oct 92 - 31 Dec 92 No Discharge <br />011 W 01 Jan 93 - 31 Mar 93 No Discharge <br />011 W 01 Apr 93 - 30 Jun 93 No Discharge <br />011 X 01 Apr 93 - 30 Jun 93 No Discharge <br />011 W 01 Jul 93 - 30 Sep 93 No Discharge <br />012W Ot Oct 92 - 31 Dec 92 No Discharge <br />012X 01 Oct 92 - 31 Dec 92 No Discharge <br />012W 01 Jan 93 - 31 Mar 93 No Discharge <br />012W 01 Apr 93 - 30 Jun 93 No Discharge <br />012X 01 Apr 93 - 30 Jun 93 No Discharge <br />011 W 01 Jul 93 - 30 Se 93 No Dischar e <br />