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~W.~'. T. Inc. <br />Acute Whole Effluent Toxicity Chemical Result Report <br />June 23, 1997 <br />CUSTOMER NAME: PHONE NUMBER: (801)864-2165 <br />Western Fuel Colorado (New Horizon Mine 007) FAX NUMBER: (801)864-2168 <br />Attn: Todd LeFevre <br />P.O. Box 628 <br />Nucla, CO 81424 <br />SAMPLE DESCRIPTION: <br />Chemistries to go with Acute 2 Species Toxicity Test Collected 6/17/97.. <br />Sample Test Log Acute Acute <br />Source Performed Number Ceriodaplinia Minnow <br />Effluent Total Hardness, Recon (EPA 130.2) 1784 428 mg/L 428 mg/L <br />Total Hardness, EFlluent (EPA 130.2) 1784 1,918 mg/L 1,918 mg/L <br />Total Hardness, Receiving Water (EPA 130.2) Na na mg/C, na mg/L <br />• Ammonia, Effluent (EPA 350.2/350.3) 1784 0.14 mg/L 0.14 mg/L <br />Ammonia, Receiving Water (EPA 350.2/350.3) Na na mg/L na mg/L <br />Initial Chlorine Residual (EPA 330.5) 1784 <0.05 mg/L <0.05 mg/L <br />Final Chlorine Residual (EPA 330.5) Na na mg/L na mg/L <br />. Conductivity, Effluent (EPA 120.1) 1784 2,680 umhos/cm 2,680 umhos/cm <br />AlkaliniTy, Effluent (EPA 310.1) 1784 331 mglL CaCO~ 331 mg/L CaCO~ <br />Conductivity, Receiving Water (EPA 120.1) Na na umhos/cm na umhos/cm <br />Alkalinity, Receiving Water (EPA 310.1) Na na mg/L CaCO, na mg/L CaCO, <br />Recon Initial pH (EPA 150.1) 1784 8.38 8.38 <br />After 24 hours pH (EPA 150.1) 1784 8.35 8.30 <br />100%InitialpH (EPA 150.1) 1784 7.71 7.7] <br />100% After 24 hours pH (EPA 150.1) 1784 8.07 8.07 <br />Receiving Water Initial pH (EPA 150.1) Na na na <br />Receiving Water After 24 hours pH (EPA 150.1) Na na na <br />• <br />v <br />Anal :Lee Rawlings, Chemis <br />