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0 <br /> NSF International <br /> Standard 40 - Individuall Wastewater Treatment Plants <br /> Week Beginning: December 13, 1992 f Plant Code: 41108 <br /> Weeks into Test. a <br /> Weekend Dosing Sunday- 450 glions Saturday 450 gallons <br /> Ri. 11 <br /> Monday --TJ eaday------ --Wednesday--—T- hursday-- Friday— <br /> Y <br /> Dosed Volume (gallons) 450 '4450 450 450 450 <br /> Dissolved aeration 1.8 12.0 2.9 1.9 2.0 <br /> Oxygen chamber <br /> (M91L) effluent 3.63.3 3.4 2.6. 3.2 <br /> influent 15 15 15 15 is <br /> Temperature aeration 17 17 16 16 16 <br /> C) chamber 2 <br /> effluent 9 8 13 11 11 <br /> influent 7.5 7.5 7.5 7.4 7.4 <br /> pH aeration chamber .1 <br /> 7.6 7.5 7.6 7.6 7.6 <br /> A <br /> effluent 7.9 718 7.9 8.0 7.9 <br /> Biochemical influent 220ij190 220 180 190 <br /> Oxygen Demand <br /> (M91L) effluent 6 5 <5 <5 <45 <br /> influent 18011 220 280 190 170 <br /> Suspended <br /> Solids aeration <,5 <br /> . 6 6 5 7 <br /> (M91L) chamber —I <br /> effluent <5 <5 <5 <5 <5 <br /> influent 160 190 240 160 ISO <br /> Volatile <br /> Suspended aeration <br /> <5 <5 <5 <5 5 <br /> Solids chamber <br /> (MWL) effluent <5 <5 <br /> <5 <5 <5 <br /> 45 Minute <br /> Settleable aeration <5 i i <5 <5 <5 <5 <br /> Solids chamber <br /> PLIL) <br /> I)-Site problem <br /> (2) Malfunction of system under test <br /> (3) Weather problem <br /> (4)Other <br /> TGS/3-92 <br /> C18 <br />