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NSF International <br /> Standard 40 - Individual Wastewater Treatment Plants <br /> Week Beginning: January 31 1993 Plant Code: <br /> 41108 <br /> Weeks into Test: 15 <br /> Weekend Dosing: Sunday- 450 gallons Saturday- 450 gallons <br /> Monday Tuesday Wednesday Thursday Friday <br /> Dosed Volume (gallons) 450 450 450 450 450 <br /> Dissolved aeration 1.9 1.6 1.8 2.0 3.8 <br /> Oxygen chamber <br /> (mg/L) effluent 4.0 7.1 3.1 3.7 4.5 <br /> influent 12 12 12 12 12 <br /> Temperature aeration 13 13 14 14 14 <br /> rc) chamber <br /> effluent 10 3 8 14 13 <br /> influent 7.5 7.5 7.5 7.5 7.4 <br /> pH aeration 7.6 78 7.6 7.5 7.5 <br /> chamber <br /> effluent 7.8 8.0 7.9 7.9 7.8 <br /> Biochemical influent 160 170 160 160 160 <br /> Oxygen Demand <5 c5 <5 <5 <5 <br /> 091L) effluent <br /> influent 160 260 170 180 160 <br /> Suspended aeration <5 <5 6 <5 <5 <br /> Solids chamber <br /> (m9/L) <br /> effluent <5 <5 c5 <5 <5 <br /> influent 130 200 150 150 130 <br /> Volatile <br /> Suspended aeration <5 <5 <5 <5 <5 <br /> Solids <br /> chamber <br /> (ffWL) effluent <5 <5 <5 <5 <5 <br /> 45 Minute <br /> Settleable aeration <51 <5 <5 <5 <5 <br /> Solids chamber <br /> (mUL) <br /> (1) Site problem Notes: <br /> (2) Malfunction of system under test J <br /> (3) Weather problem <br /> (4) Other <br /> TGS/3-92 <br /> C-15 <br />