HYDRO31272

• Permit No: C1981013
• IBM Index Class Name: Hydrology
• Doc Date: 3/23/1988
• Doc Name: BIOLOGICAL TOXICITY TEST
• Permit Index Doc Type: OTHER SURFACE WATER
• Media Type: D
• Archive: No

TO:
FROM:
SUBJECT:
DATE:
US SPA REGION VIII TEST REPO R',
BIOLOGICAL TOXICITY TEST
SAMPLING STTE: Golden Eagle Mine NPDES NO
SAMPLING LOCATION:Settling Pond Effluent TAG NO.:
i` - ,. ,--
1
i ! .. ..
_._ .._.1
DATE SAMPLED: 3-11 -BS DATE TESTED: 3-15-88
TIME SAMPLED: Unknown DATE REPORT: 3-24-88
TYPE OF TEST: Acute S tatic Renewal
ORGANISM: Fathead Minnow ~-~ ~ o ~
~J
AGE 6 days old V
NUMBER 20 Per Concentration
AVERAGE
TEST CONDITIONS:
TEMPERATURE 20.3 DISS. OXYGEN 6.9
PH 8.92 HARDNESS 15
AERATION Not Req uired CONDUCTIVITY 451
CONCENTRATIONS: 100~,75~,SOo,25~,12.50
DILUTENT: Region VIII filtered fishroom water
ANALYST: Loys P. Parrish
RESULTS: ACUTE CHRONIC
LC50 46.6. LOEL
LCI 37.1 NOEL
UCI 58.4 MATC
COMMENTS:
~ 0~~ L