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We-'.em Bioassay Laboratory STATIC ACUTE BIOASSAY <br /> 2950 Buskirk Avenue (Hazardous Waste Test) ' <br /> Walnut Creek, CA 94596 <br /> (415) 934-4884 <br /> CLIENT: Environmental Solutions. Inc. (p9. 1 ) ATTENTION: lir. Hess <br /> SAMPLE IDA: 11371 SAMPLE DESCRIPTION: Solid TESTING DATES: 10/30/92 to 11/3/92 <br /> CLIENT IDA: Wood <br /> Debris <br /> Tech ID: 10/30/92 10/31/92 11/1/92 11/2/92 11/3/93 <br /> (w/Fatheads) IN T AL 24-HOUR 48-HOUR 72-HOUR 96-HOUR.FINAL <br /> TEST Alk Hard Live PH DO Temp Live PH DO Temp Live PH DO Temp Live pH DO Temp Live PH DO Temp <br /> CONC <br /> L L L L oC L oC L oC L oC L oC <br /> CL-a 19 36 10 7.7 8.6 20 10 8.2 8.5 20 10 8.0 9.0 19 10 7.9 8.8 20 10 7.8 9.2 19 <br /> 250-A NIA N/A rJO 7.6 8 20 10 8.1 8.5 20 10 7.9 8,8 19 10 9 8.B 20 10 7.8 9.0 1 _ <br /> 0- N N 7 8.6 20 10 8.1 8 20 10 7 8.8 19 10 ?.0 8.8 0 10 7.7 9.0 19 <br /> 500• H HIA 10 20 10 8.1 8 0 10 7.8 8.8 19 10 7 9 8.7 209 7.6 9.0 19 <br /> 500-B NIA N 0 7.7 8.7 20 10 8.0 7.7 8.8 19 10 '' 8.8 20 10 7.4 0 1 - <br /> 750-A 19 36 10 7.7 8.5 20 10 8.0 8.1 20 10 7.8 8.6 19 10 .9- 8.7 20 10 7.6 8.619 <br /> 750-B 19 36 10 [7.7_ 8.8 20 10 8.0 8.3 20 10 7.8 8.7 19 10 i.9 8.8 20 10 7.6 8.8 19 <br /> 96-hr. LC50: > 750 mo/L <br /> 95% Confidence Limits: Not Applicable_ r <br /> 96-hr. Final Percent Survival in 100% in controls and test concentrations 250 mg/L and 750 mg/L; 95% in 500 mg/;. <br /> Controis 8 Treatments: _- <br /> _ Remarks, • F(nal Alkalinity_ Hardness (mo/L): CMtrolc = 22 38- 750 ma/L = 22.39 <br /> Technician: <br /> Laboratory Supervisor: z <br /> ES-11371.DAT <br /> r <br />