REP32503

• Permit No: C1981008
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: NEW HORIZON 1 AND 2 MINES WET TEST RESULTS
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

"~W.~. T. Inc.
-Water & Environmen[a! Tes6rre Inc. 479 West SO NoRh. American Fork Utah 84003 (80/)756.8397
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Acute Whole Effluent Toxicity Report
Ceriodanhnia
DATE: September 13, 1996
PERMTI'I'EE NAME: Wcstem Fuels-Colorado (New Horizon Mine) NPDES NO: OVCFALL NO: 007
TESL' (AnimaUAge): Ceriodaphnia <24 hours. SAMPLE (Dare/Type): 9/D4/96.
DATE/TIME TEST BEGAN: 9/05/96 4:00 p.m. DATE/I'17vIE TESL' COMPLhTED: 9!07/96 4:00 p.m.
TEST CONbITIONS
Ceriodaphttia dubia neonates were exposed to diluted effluent as specified by perc~it. Survival at the end
of the test period was measured and slatisticallyevaluated for Acute Toxicity.
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Animal Age at Test Start . f :<24 hours
Number of Organisms/Dilution Volume/Replicates 5 organisms/15 m1/4 replicates.

:food :::::.:: '..'.:;::.!:.. :::.: • . ....:. YT'C with: Al e D 1 m da fed revidus. f0: test
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Aeration . :
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4 :
None re aired.
;Dissolved en.:.; : ., . :;.:.: -' ..
Oxyg
Measured:daily'oldlueSa:::, `:.::,.:>"•:: .:,r: :...:.::.::::.::::.
Water Replacement Renewed every 24 boors.
,.. .. .
Temperatui!e.::. ::r ::...:.: ... :.
20 ± 1 degecs C.:...:: ::;;:::: ; ::..".. ;::: '; :. ;'i:
,... ...
Photo Period 16 hours ambient light/8 hours dark.
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pg :.:..

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Measured initi:i{l an '
y... d ai 24houis.
.
Dilution Water Reconstituted lab water (±15% hardness of the
Receiving Water).
Receiving. Water .:: .. ...:...:.::.. Calamity Dtaw..(Historic~l.data):.: `.' `•`:
Sample Concentrations Control, 6.25%, 12.5%, 25%, 50%, 100%.
SUMMARY
Results: X Pass Fail
There was NO significant elYect on survival.
Eoclosyd arc data sheets and statistical reports.
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iwlings
& Environmental Testing, Inc.
~ Enclosure
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