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W.E.T. Inc. <br />Water & Environmental Testier Inc. 479 West 50 NoRh. Amerieaa Fork Utah 84003 /8011756-8397 <br />Acute Whole Effluent Toxicity Chemical Result Report <br />October 21, 1996 <br />CUSTOMER NAME: PHONE NUMBER: <br />Western Fue]s-Colorado (New Horiwn Mine) 007 FAX NUMBER: <br />Attn: Tod Lefevre <br />27646 West Sth Street <br />Nucla, Colorado 81424 <br />SAMPLE DESCRIP'T'ION: <br />Chemistries to go with Acute 2 Species Toxicity Test Collected 10/10/96. Receiving <br />water data was taken from Historical files. <br />Sample Test Log Acute Acute <br />Source Performed Number Ceriodaphnia Minnow <br />,....... <br />;.:::.:::Effluent:.:.:.:.;::'To(a1:H:aidness;:Recnu'(F.PA:.;130':2).::;.' "':.::.:..,:."'::" <br />;:: . <br />:;' ..:..:.:::.. <br />. :"'1:.1:10 m..: ~ :>...: <br /> <br />,.. <br />:::.":::1110..m:::` :.,:::'' <br />Total Hazdness, EfIIuenl (EPA 130.2) 147 1,657 mg/L 1,657 mg/L <br />,. . <br />. Total:Haidaess .Rebeivin :Water ...A'.130:2 ;:.:;. <br />,.... <br />.: :; '. <br />;d :133'm 3: <br />::":.::::i i33::m :•:.:: <br />Ammonia, Effluent (EPA 350.2f350.3) 1547 0.56 mg/L 0.56 mg/L <br />., <br />Amm.nia,.Receiviit:;Water:(EI'A350:2/3503 ::. <br />'-: ... •'. <br />'.'0:13'n¢ <br />0.13':m .:; ;: .:, <br />Initial Chlorine Residual (EPA 330.5) 1547 <0.05 mg/L <0.05 mg/L <br />Final Clilorine;l2esidual (EPA 330.5). 1547 . -- mg/L <br />,. <br />=- mg/1, <br />Conductivity, Effluent (EPA 120.1) 1547 2,485 umhos/cm 2,485 umhos/cm <br />,. <br />- ::::::::. ...:. Alkalinit Efflneiit <br />Y,: (EPA310.1) . .::.:: .:.:.::: .. <br /> <br />1547:... <br /> <br />::300 mg/L'.CaC03:j <br /> <br />: 300'mg/L CaC03: <br />Conductivity, Receiving Water (EPA 120.1) • 1,939 umhos/cm 1,939 umhos/cm <br />,.. , <br />,. <br /> <br />/gyp <br />'.:'Alkalinity; Receivin Water.... 11'3]0:1.: i"".:.. <br /> <br /> <br />..::... . <br /> <br />'352 m CaGO:;I' <br /> <br />352 m C?CO";;: <br />Recon Initial pH (EPA 150.1) 8.49 8.49 <br />,. - :.. <br /> <br />":; :, ::... , . Atiei;7A douts'pH (kPA:134:1) .: :..:..... . .:..: <br /> <br />.. ... .. <br /> <br />: ..:.:852'.:..:... ;t:: <br />,. <br />;.:: .:8:44; " .;'... ,. <br />.. .. ....... .. .. <br />100% Initial H (EPA 150.1) <br />P 1547 7.71 7.71 <br />' 100%.A8er24:hours H PA 150.1 <br />,..... ,.... P..'(E 15.47: '.. 8.01 8.31:.;; <br />Receiving Water Initial pH (EPA 150.1) • 7.85 na <br />>:.;: Receiving Water:Atier 24:hours pH: (EYA 150.1) ,, :.: Na ::. ..:.::: ..:: :::' ua.:::::::::. 1 <br />~ :.:`. ".:k,.na.::,::::::.:.:: <br />•. <br />* Historical data. <br />Cyst: Lee Rawlings, Chemist <br />Environmental Testing, Inc. <br />