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~~ W.E.T. Inc. <br />lrrr & Environmentai Testier /ne. 479 West 50 North. American Fork Ulah 84003 /80/1756-8397 <br />Acute Whole Effluent Toxicity Chemical Result Report <br />March 10, 1997 <br />CUSTOMER NAME: PHONE NUMBER: (801)864-2165 <br />Western Fuel Colorado (New Horizon Mine 001) 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 Toxic ity Test Collected 3/3/97. <br /> <br />Sample Test Log Acute Acute <br />Source Performed Number Ceriodaphnia Minnow <br />Effluent Total Hardness, Rewn (EPA 130.2) 1677 441 mg/L 441 mglL <br />Total Hardness, Effluent (EPA 130.2) 1677 2,183 mg/L 2,183 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) ] 677 0.05 mglL 0.05 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) 1677 <0.05 mg/L <0.05 mg/L <br />Final Chlorine Residual (EPA 330.5) 1677 na mg/L na mg/L <br />Conductivity, Effluent (EPA 120.1) 1677 2,950 tunhos/cm 2,950 umhos/cm <br />Alkalinity, Effluent (EPA 310.1) 1677 372 mg/L CaCO~ 372 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) 1677 8.47 8.47 <br />After 24 hours pH (EPA 150.1) 1677 8.49 8.4] <br />100%Initial pH (EPA 150.1) 1677 8.08 8.08 <br />100% After 24 hours pH (EPA 150.1) 1677 8.09 8.01 <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 />Lee Rawlings, Chetfiist <br />Water nvironmental Testing, Inc. <br />