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Client: Mountain Coal Company CO-0038766 <br />- Site: East Sly Gulch <br />SCG Project No.: 305140 <br />WET TEST REPORT FORM -ACUTE <br />Permittee: Mountain Coal Company Outfall(s): 017 (East Sly Gulch) <br />Permit No.: CO-0038766 <br />Test Type: Routine ® Accelerated ^ <br />Test Species: Daphnia magna <br />Test Results Statistical Begin Begin End End <br />(LC50) Method Test Date Test Time Test Date Test Time <br />>100% Probit 06-07-2005 1430 06-09-2005 1340 <br />Dilutions) - % Effluent <br />t'-z.-t.~ ~" ~ r ~'~.' <br />Measuremegts~ !COntrOl"~ <br />`?.CO /o~°...~ x ~ ,~ ~~, <br />,, 1 9 /°~, ~~ v~'~"'3' w^ ~° <br />~~a_ e% : " cs~'y+ <br />,„~ -+, 231,° .~'s 3~ 3 s. <br />*~~~ 50 ~3_ '`'~' ~'°~usy"b€.a~'~=z <br />~001,o6tiA4Y: <br /># at Start of Test 20 20 20 20 20 20 <br /># live after 24-hours 19 20 20 20 20 15 <br /># live after 48-hours 19 20 20 20 20 14 <br />Hardness (mg/1) -Receiving Water: N/A Effluent: 93 Recon Water: 88 <br />Alkalinity (mg/1) -Receiving Water: N/A Effluent: 1450 Recon Water: 62 <br />Chlorine (mg/1) - <0.01 pH (initial/final) -Control: 8.1/8.1 100%: 8.8/8.9 <br />Total Ammonia as NH3 (mg/I) - <1.0 <br />Were all Test Conditions in Conformance with Division Guidelines? YES ®NO <br />If NO, list deviations from test specifications: <br />Laboratory: The SeaCrest Group, LLC <br />Comments: <br />Analyst's Name: Richazd Morgan and Holly Garrett <br />GCc 2 <br />The SeaCrest Group 10 <br />