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IH <br /> q <br /> f <br /> IR <br /> NSF International <br /> Standard 40 -ImcHvidnal Wastewater Treatment Plants <br /> Week Beginning: November 29, 1992 Plant Code. 41108 <br /> F <br /> Weeks Into rest: 6 <br /> Weekend Dosing: Sunday- 450 gallonsSaturday- 450 gallons <br /> a 1 <br /> 4. <br /> _ <br /> Monday Tuesday _Wednesday Thursday Friday <br /> Dosed Volume (gallons)--- 4504 1450 450 450 450 <br /> Dissolved aeration <br /> � 1.5 3.4 3.4 2.0 <br /> Oxygen chamber I; <br /> (mg/L) effluent 3.9i � 3.5 2.3 2.3 3.3 <br /> J3 influent 15;„ i 15 15 15 15 <br /> aeration <br /> Temperature 17 1 17 16 17 18 <br /> ICC) chamber <br /> effluent 171 � 15 12 10 10 <br /> influent 7.5, I� 7.5 7.6 7.5 . 7.5 <br /> PH aeration 7.8 7.6 7.8 7.8 7.6 <br /> g chamber <br /> effluent 8.0 i 8.0 7.9 8.0 8.0 <br /> Biochemical influent 1701 J. 160 160 160 180 <br /> Oxygen Demand <br /> ,u. (mg/L) effluent 5 <5 <5 <5 <5 <br /> influent 150, I� 170 170 190 180 <br /> Suspended <br /> Solids aeration 5 i <S <5 7 6 <br /> (mg/L) chamber <br /> effluent <5,0, i <5 <5 <5 <5 <br /> influent 130: 1140 140 160 150 <br /> Volatile i <br /> Suspended aeration <5 , <5 <5 6 <5 <br /> Solids chamber <br /> (mg/L) effluent <5 <5 <5 <5 <5 <br /> 45 Minute b <br /> Settleable aeration <5 I <5 ,i <5 <5 <5 <br /> Solids chamber II�� <br /> PLIL) U <br /> (1) Site problem - <br /> - <br /> It i <br /> (2) Malfunction of system under test <br /> (3) Weather problem 6 �' <br /> (4) Other <br /> TGSl3-92 <br /> C-6 <br />