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' R W,,TCR & HAZAzE�C-S WASTE LABORATORY (No 9C&131 ) CERTIFIED by CALIFC2'41A WEPT of E, L- .Z-, .CIS <br /> Central Central Coast Lob Number F-14, 134-137 Ca-p <br /> Coast Analytical Services Collected 11/02/89 <br />' Analytical 141 Suburban Road, Suite C-4 Received 11/03/89 <br /> Services San Luis Obispo, California 93401 Tested As Listed <br /> (805) 543-2553 Collected by M Edmonson/M Stc-ger <br />' ATTN Kathleen Isaacson Sample Description <br /> Western Geologic Resources Pro, ect #7-076 01 <br /> 2169 E Francisco Blvd , Suite B SS-5, S-6, SS-7, SS-8 <br /> Son Rafael , CA 94901 Composite <br /> STATIC ACUTE BIOASSAY <br /> Species Pimepholes promelas Test Type Static 96 hr LC50 <br /> Common Name Fathead Minnow Dilution Water Freshwater (soft) <br /> Supplier Thomas Fish Co Number per Tank 10 <br />' x Length 3.3 cm x Weight 0 55 g Max Length 4 0 cm Min Length 2 6 cm <br /> Acclimation Period >10 days Max Weight 0 91 g Min Weight 0 24 g <br /> Acclimation Temperature 17-19 degrees C Tank Volume 10 liters <br />' Dead in Acclimation Tank 0% Hardness 44. <br /> Alkalinity. 30. <br /> INITIAL 24 HOUR 48 HOUR 72 HOUR 96 HOUR <br /> DATE 11/13/89 11/14/89 11/15/89 11/16/89 11/17/89 <br /> TIME 01500 JRH 01330 JRH 01600 JRH 01300 JRH 01500 JRH No <br /> DO C pH DO C pH #M DO C pH #M DO C pH #M DO C pH #M Dead <br /> Deg Deg Deg Deg Deg <br /> TROL 8 9 17 7 4 9 0 17 7 5 0 8 8 17 7 6 0 8 8 17 7 6 0 8 6 18 7 6 0 0 <br /> 750 mg/l 8 5 17 7 4 8 6 17 7 5 0 8 4 17 7 5 0 8 4 17 7 5 0 8 2 18 7 5 0 0 <br /> i750 mg/l 8 1 17 7 4 8 1 17 7 5 0 7 9 17 7 5 0 8 0 17 7 5 0 7 9 18 7 5 0 0 <br />' 500 mg/1 8 3 17 7 4 8 4 17 7 5 0 8 2 17 7 5 0 8 2 17 7 5 0 8 0 18 7 5 0 0 <br /> 500 mg/1 8 6 17 7 4 8 8 17 7 5 0 8 6 17 7 5 0 8 5 17 7 5 0 8 3 18 7 5 0 0 <br />' 250 mg/1 8 1 17 7 4 8 2 17 7 5 0 8 0 17 7 5 0 8 0 17 7 5 0 7 8 18 7 5 0 0 <br /> 250 mg/l 9 0 17 7 4 9 1 17 7 5 0 8 9 17 7 5 0 8 8 17 7 5 0 8 6 18 7 5 0 0 <br />' REMARKS Sample Alkalinity Before 36mg/1 After 34mg/1 <br /> 0750 mg/1 Hardness Before 46mg/1 After 43mg/1 <br /> LC50 >750 mg/1 LC50 <br /> This material does not have an acute aquatic 96-hr LC50 less than 500 mg/1 with fathead minnows <br /> and according to 22 Cal Adm Code Art 11 Sec 66696 (4) is not hazardous or toxic by this <br /> criterion <br /> Respectfully submitted, <br /> 11/20/89 CE TRAL COA T ANLYTICAL SERVICES <br /> F141348I.WR1/#127 <br /> MH/ke Ma y H�Ql~cek, .D President <br />