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' ,� .11 rt ft 11 dic(rl TOXICITY 810ASSAY <br /> +255 W]WELL STPEET•EMERYVILLE,CA 3SF48• ,.=5r.17.)00 3 <br /> _ Log No.:E90-04-550-5 <br /> Alton Geoscience <br /> Date Sampled:04/06/90 <br /> Date Received:04/20/90 <br /> Date Reported:04/30/90 <br /> Report 1.0: <br /> ATTN: Mr. Stephen Rosen <br /> I <br /> �! uearrory a,c:ar <br /> Cc: <br /> CALIFORNIA HAZARDOUS WASTE ASSESSMENT BIOASSAY: SCREED <br /> C-2,1,3,6,9,8,5,4,7 Comp. - 7.5-10.0' <br /> PI" Descrrpuon--pimep a es prome as, at. ea minnow Stic ebacks Un pmt to <br /> C ,amsrTt ___ Source - <br /> Fresi�-- Scum .Emeryvi lle. Dechlorinated Temperature Range '�C <br /> ,ion Water Tap Water with Matrix <br /> Modifiers <br /> 1h 1: Air x Oxygen None <br /> B .'y I Trine. Control 2SO m9IL 250 m /L 750 m /L 750 <br /> Jr 'i'r0ns i Hrs ! No % Va °e NO i �. No. K i NO .y t No. K No. % Nla. i •a <br /> start 10 -100 10 100 ..90' -100 ' 10 " 100 10 100. <br /> 24 -� -10 10010 100 -10' -100' 10 100 10, 100. 1 <br /> t, 'n,s�,s; ;® T - 10 100 10 _100 - 10 -100 10 --foo 00 .10' 100 <br /> i . -- <br /> survrvin9' 72 10 -100 - 10 100 i 0 9 00 10 . 100 10i 100: <br /> I-__L -- - <br /> { y6 1 0!= 100 10 7 04 10 'l 00 i 10 f 100 101 100 <br /> start i 8.8- 9.Q� 9.0 9.1 9.2 ! <br /> C.sysotvee' 2a- -8.7 $.7 8.5 8.7 8.9 i <br /> lxygen I se 8.6 8.8 8.9 ' 9.2 9.1 <br /> Mg Li 72 9. 0 9.0 9.2 i 9.4 9.4 i <br /> ` 8.7 8.4 , 9.1 I 9.4 9.4 1 <br /> 96 ` <br /> I start 8.3 8.5 8.5 8.6 8.7 <br /> ` 2a 7.8 7.7 7,7 7.8 7.8 <br /> ate. . si3 8.0 8.0 $.0 ! 8.0 8.1 . <br /> 72 8.7 8.6 $.6 8.5 8.5 <br /> ....._ . .78 7.,9. 7.-9- ----- -l...._7..9. ... _... ...7..9.... i ..... ... ... .._... ........ . .. ... _ .i <br /> of <br /> RESULTS 96 hr.TLmt>75_O�/j- Toxicity EJn+IsESti3bL7SF Percent survival in uncauted sample Not i1C2bLQ <br /> Length"Of fish,cm:f�Sa>:. 4.5 Olin. 3+Z l4fean 3:9 In'usn.nr,rsehou-ons iyeo.lnottau.rort•etm <br /> 0.75 0.29 0.55 50%.n a•rail ane awr-an d int%ampq.no n,.,•aw n <br /> Weight of fish.9-: Max. Min. Akan esuos-tai . <br />