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~.~'. T. Inc. <br />Water & Environments( Testine Inc. 479 Wesl SO North. American Fork Utah 84003 /801)756-8397 <br />Acute Whole Effluent Toxicity Chemical Result Report <br />October 2, 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 9/26/97. <br />Sample Test Log Acute Acute <br />Source Performed Number Ceriodaphnia Minnow <br />Effluent Total Hardness, Recon (EPA 130.2) 1886 420 mg/L 420 mg/L <br />Total Hardness, ERluent (EPA 130.2) 1886 1,560 mg/L 1,560 mg/L <br />Total Hardness, Receiving Water (EPA 130.2) Na na mglL na mg/L <br />Ammonia, Effluent (EPA 350,2/350.3) 1886 O.19 mg/I. O.I9 mg/L <br />Ammonia, Receiving Water (EPA 350.2/350.3) Na na mg/L na mg/L <br />lnitial Chlorine Residual (EPA 330.5) 1886 0.06 mg/L 0.06 mg/L <br />Final Chlorine Residual (EPA 330.5) 1886 <0.05 mg/L <0.05 mg/L <br />Conductivity, Effluent (EPA 120.1) 1886 2,540 umhos/cm 2,540 umhos/cm <br />Alkalinity, Effluent (EPA 310.1) 1886 334mg/L CaCO, 334 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) 1886 8.45 8.45 <br />After 24 hours pH (EPA 150.1) 1886 8.57 8.33 <br />100%InitialpH (EPA 150.1) 1886 7.52 7.52 <br />100% ARer 24 hours pH (EPA 150.1) 1886 8.1 I 8.04 <br />Receiving Water Initial pH (EPA 150.1) Na na na <br />Receiving Water After 24 hours pfl (EPA 150.1) Na na na <br />// ~_ <br />st: Lee Rawlings, Chemist <br />Water Environmental Testing, Inc. <br />