REV13940

• Permit No: M1977342
• IBM Index Class Name: Revision
• Doc Date: 8/4/1995
• Doc Name: RATIONALE FOR PUBLIC NOTICE
• Type & Sequence: AM2
• Media Type: D
• Archive: No

-COLORADO DEPARTMEIVI' OF PUBL~EALTH AND THE ENVIRONMENT, Wat~uality Contro! Division
rRationale -Page 6, Permi( No. CO-000 467
Acute WET Results - Ceriodaphnia dubia
Month/Yr Efject Dilation.
Perf...

..Control Dil.

Control : 6.25 % : ::12:5 3'0
...... 25 %. . 50 9o I00 %::
3/93 Survival (`Yo) 100 0 0 0 0 0
6/93 100 95 20 0 0 0
7/93 90 100 100 SS ]0 0
12/93 100 100 100 100 100 75 25
6/94 100 100 100 100 95 100 100
9/94 95 95 90 95 100 95 85

Accelerated Testing
1/94 100 100 100 100 100 100 85

Acute WET Results - Pimephales prome[as
Mnth/Yr Ejfecr Dilution. .
P.erj;..
Control Dil. .
.::Control.

(0%) . :.:6.25..%..
. 12.:5 %: .: 25 % 50 :% 100..%.:.

,....
3/93 Survival (%) 100 0 0 0 0 0
6/93 90 65 35 /S S 5
7/93 100 100 100 100 100 90
12/93 100 100 100 100 100 100 100
2/94 100 100 100 100 100 100 100
6/94 100 100 100 100 100 100 100
9/94 95 100 100 100 100 /00 100