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W.E.T. Inc. <br />Water & Environmenlai Testine inc. 479 West SO Norlh, American Fork Utah 84003 180/) 75tr8397 <br />• Acute Whole Effluent Toxicity Chemical Result Report <br />Mazch 23, 1998 <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 3/16/98. <br />Sample Test <br />Source Performed Log <br />Number Acute <br />Ceriodaphnia Acute <br />Miunow <br />ERluent Total Hardness, Recon (EPA 130.2) 2048 412 mg/L 412 mg/L <br />Total Hardness, Effluent (EPA 130.2) 2048 1,452,mg/L 1,452 mg/L <br />Total Hardness, Receiving Water (EPA 130.2) Na na mg/L na mg/L <br />Ammonia, Effluent (EPA 350.2/350.3) 2048 0.06 mg/L 0.06 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) 2048 <O.OSmg/L <O.OSmg/L <br />Final Chlorine Residual (EPA 330.5) 2048 na mg/L na mg/L <br />Conductivity, Effluent (EPA 120.1) 2048 2,350 umhos/cm 2,350 umhos/cm <br />Alkalinity, Effluent (EPA 310.1) 2048 256mg/L CaCO, 256 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 />Rewn Initial pH (EPA 150.1) 2048 8:39 8.40 <br />After 24 hotus pH (EPA 150.1) 2048 8.39 8.40 <br />100% Initial pH (EPA 150.1) 2048 7'.95 7.95 <br />100% After 24 hours pH (EPA 150.1) 2048 8.11 7.92 <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 />• ~ vvv~ <br />An t: Lee Rawlings, Ch 'st <br />Water Envvonmental Testing, Inc. <br />