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1311 Woodland Ave.*Modesto, California 95351 -4732 *Phone 209-529-4080 <br />8r° Warren SlaozmDo <br />CITY OF MANTECA <br />2450 W. Yosemite Ave. <br />Manteca, CA 95338 <br />BIOASSAY RESULTS <br />March 28, 1991 <br />Date Received: 01-29-91 <br />Date Started : 02-04-91 <br />Date Completed: 03-22-91 <br />Sample Id: Sand Sewer Cleanings <br />' lnitia7 24 hour 48 hour 72 hour. 96 hour <br />Date: 3/22 : 2/23 : 3/24 z :3/25 :3/26 ' <br />o[ : 15 : 15 ; 15 : 1 : 15 <br />opm <br />Sol n. DO pH DO pH % DD oH % DO cH % DO cH % <br />Mort. Mort. Mort. Mort. <br />: 250:1O.:7.2 10.:7.0 0 :9.6:7.0: 0:9.6 m6.9: 0 :9.8:7.0: 0 <br />: 500�10":7°2 :9~9:7°0 0 :9,9:7.0: O :9.6 0:10 u9.6:7.1: 0 <br />x 750:10~0.1 n10.:7"0 x 0 x9.B:7.0: 0 :9.B V7.0: 0 :9~19:7^2: 0 <br />Cont. -.10.:7.:- :9"8�7.1 : 0 :9.6:7.3:0, ::9.5 7.3: 0 :9.4:7.3: 0 <br />Test sPecies: Salmo gairdnerii Source: Thomas Fish Co. <br />Size of fishz3-5 cm. Dilution water source: Artificial <br />Aerated yes (: x ) no (: ) <: ) Very Hard (280-320mq/1) <br />:10 fish per :10 liters of test(: ) Hard (160-180 mg/1) <br />solution were tested. x > Soft (40-48 mg/l) <br />Semole Values (Initial) <br />Total Hardness: <br />Total Alkalinity: , <br />500 opm mixture <br />yielded <br />96 hour LC 96 hour % Survival: 1007. <br />50 <br />0 <br />�. <br />tern Agricultuural Laboratories <br />` - <br />� <br />t Butterfield <br />` <br />to Providing Quality Analytical Services <br />Our reports and letters are for the exclusive and confidential useufour clients and may nothe reproducedinwhole orinpart, nor may mnyroferencubomade <br />