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ri <br /> fl3 <br /> !k r <br /> II <br /> NSF International <br /> Standard 40 - IndividualiWastewater Treatment Plants <br /> _• jj <br /> Stress Test Evaluation <br /> E <br /> Week Beginning: Agri!4. 1993 i Plant Code: 41108 <br /> Y E <br /> Weeks Into Test: 24 1. <br /> F <br /> .i <br /> ----- -- .- ._. _ ---_Sunday=--Monday--Tuesday, - Wednesday---Thursday -Friday -Saturday- <br /> Dosed Volume (gallons) 450 ..A. 450 450 450 450 450 450 <br /> Dissolved aeration <br /> O en chamber 3.1 1.8 2.0 2.0 1.9 2.0 <br /> (SIL) effluent 4.0 4.7 3.2 4.8 4.0 3.5 <br /> influent 11 11 11 11 11 11 <br /> aeration <br /> Temperature 15 14 15 15 16 16 <br /> (°C) chamber n <br /> effluent 12 9 11 8 9 14 <br /> influent 7.5 7.5 7.5 7.5 7.6 7.4 <br /> f ' pH y <br /> aeration7.4 7.4 7.3 7.6 7.5 7:5 <br /> chamber <br /> effluent 7.7 7.8 7.8 7.7 7.7 7.7 <br /> Biochemical influent 140 99 130 120 110 130 <br /> Oxygen Demand k <br /> (M91L) effluent <5 i <5 <5 <5 <5 5 <br /> influent 150 140 150 160 140 140 <br /> Suspended <br /> Solids chramber 5 8 10 6 7 7 <br /> (m9/L) <br /> effluent 5 F 7 6 6 8 7 <br /> influent 130 h 120 130 140 120 120 <br /> Volatile <br /> Suspended ' aeration <5 6 8 4 <5 <5 <5 <br /> Solids chamber M <br /> ( L) effluent <5 5 <5 <5 6 5 <br /> 45 Minute <br /> Settleable aeration s <5 <5 <5 <5 <5 <br /> Solids chamber <br /> !►nULl <br /> (1) Site.problem_. _.-_. _ _- -- -- -- a--Notes: , <br /> - (2) Malfunction of system under test la <br /> (3)Weather problem <br /> (4)Other <br /> TGS/3-92 <br /> C_24 <br />