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

r - W.E. T. Inc.
Water & Environmental Testing Inc. 479 West 50 North. American Fork Utah 84003 (8 011 756-839 7
~J
Acute Whole Effluent Toxicity Report
Ceriodaphnia
DATE: October 21, 1996
PERMITTEE NAME: Western Fuels-Colorado (New Horizon Mine) NPDES NO: OUTFACE NO: 007
TESL' (Animal/Age): Ceriodaphnia <24 hours. SAMPLE (Date/Type): 10/10/96 gab.
DATE/1'IME TESL' BEGAN: 10/11/96 6:00 p.m. DATE/1'Il1~ TEST C0117iPLETED: 10/13/96 7:00 p.m.
TEST CONDITIONS
Ceriodaphnia dubia neonates were exposed to diluted effluent as specified by permit. Survival at the end
of the test period was measured and stalisticallyevalualcd for Acute Toxicity.
r 1
L_.J
Auimal Age at Test:Start: .:
,...: .
y24 hours, :..:: ..;;"~..:; ::
a ..::...............:..:.
Number of Organisms/Dilution Volume/Replicates 5 organisms/15 ml/4 replicates.
Fuod ..:.':. ? ; ::.:::... :.:: 1^fC. with Algao (Ol ml' .......... .. . .

lday)(fed previous lo. test).: ; ::.
i
Aeration None required.
Dissolved::0irygen.::..::. ' ::::.:.::..:: ::.:.
...... :Measuieddaily:old/new;::.':." ...: :::: :::;:::'::::..'::'::::;:;
Water Replacement Renewed every 24 hours.
~'emperatuie., .;.,.,., , ..::: .. 20 ±:1 degees C:.; .: ,:. ~ ' .,.:: :..:.. .::.::.; ;;: ; , ,
,..
Photo Period 16 hours ambient 1ig41/8 hours dark.
p~.:::: :.::::;:::::'.::..';::.:,:: ;:'''.:::::::.: .:' ..:.: .:Measured inilt...lyand ai;~:.:;liouis:.::.:;..' ; :::;''.:.:
Dilution Water Reconstituted lab water L15% hazdness of the
Receiving Water).
Receiv .:. Water :::::.:::.:::.:.: ..::..:.::.....:':;::..:..::.:::
............ . Calamtiy,Acaw::.::~storiCal flora);::::::::::;:::.>.::::;:;::::::.! .:

:..::..t ::.:...:.:... .
Sample Concentrations Control, 6.25%, 12.5%, 25%, 50%, 100%.
SUMMARY
Results: '::.}[:::;: Pass Fail
There was NO significant effect on survival.
Enclosed are data sheets and statistical reports.
JInCe7e~ '~ A
Rawlings
Water & Environmental Testing, Inc.
Enclosure
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