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.E. T. Inc.
Water & Environmertlal Testing /nc. 479 West SO North. American Fork Utah 84003 [phone]
C ~
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Acute Whole Effluent Toxicity Report
Ceriodanhnia
DATE: ]une 25, 1996
PERMITTEE NAME: Western Fuels-Colorado (New Horizon Mine) NPDES NO:
TESL' (AnimallAge): Ceriodaphuia <24 hours.
OUTFACE NO: 007
SAMPLE (DatelType): 6/19/96.
DATE/T11~iE TEST BEGAN: 6/20/96 1:45 p.m. DATE/I'1ME TEST COMPLETED: 6/22/96 2:00 p.m.
TEST CONDITIONS
C;eriodaphnia dubia neonates were exposed to diluted efYlucot as speciticd by permit. Survival al the end
of the test period was measured and statistically evaluated for Acute Toxicity.
•
Animal Age.at:Test.Start: :.: <24: hours:
Number of Organisms/Dilution Volume/Replicates 5 organisms/15 ml/4 replicates.
..
.
Fdad ::;::: ,.:
YTC with Algae:(0.1 ml/day)(fed:previous to test)::':
Aeration Noue required.
Dissolved:OxYBen.:::, :.::- .. .::...:::..: Measured:daily old/new: l :: :::..:...c :.::. ; ;'; :::....:.
_.. .
Water Replacement Renewed every 24 hours.
Temperature, :.:: :' ::...:...: ..:
..... 20:±:1 degrees, C,: ::f.-:;, .... ::':.:'::.:.::.:::.. :;':
Photo Period 16 hours ambient light/8 hours dark.
Measpred iailiallyaad:al 24;hours.:.::.:.. :' .:::..:;...
Dilution Water Reconstituted lab water (±15% hardness of the
Receiving Water).

Rec... ...Water.;.::.:' :.:.:::.....:::'.:.:.::..: ' ...
eivl
°~.. .
....

. Calamity. Draw.:.(Ilistoncal data).:::.:;:..::::.::: ":::::....: '::
Sample Concentrations Control, 6.25%, 12.5°!0, 25%, 50%, 100%.
SUMMARY
Results: }C:: Pass Fail
There was NO significant effect on survival.
Enclosed arc data sheets and statistical reports.
Sincere ,
/y .L
Ra ings
ater & Environmental Testing, Inc.
Enclosure