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6 <br /> NI <br /> E� <br /> NSF'International <br /> 13 <br /> Standard 40 -"Individual Wastewater Treatment Plants <br /> Week Beginning: December 27.1992 '_ Plant Code: 4/108 <br /> Weeks Into Test: 10 <br /> Weekend Dosing. Sunday- 450 gallons Saturday-. 450-gallons <br /> 'h <br /> -- --. - – Monday— Tuesday——Wednesday Thursday— Friday– <br /> Dosed Volume (gallons) 450 1450 450 450 450 <br /> Dissolved aeration2.0 2.4 3.3 0.6 3.6 <br /> Oxygen chamber <br /> (mg/L) effluent 3.5" , 3.8 4.0 3.6 3.7 <br /> influent 13; 13 13 12 12 <br /> aeration <br /> Temperature 14` I� 14 14 14 14 <br /> CC) chamber x N <br /> effluent 8 9 12 13 15 <br /> influent 7.5; 11 7.5 7.5 7.4 7.6 <br /> PH aeration 7.5 !+ 7.8 7.5 7.8 7.6 <br /> chamber J. <br /> effluent 7.Tji 7.9 8.0 7.9 7.9 <br /> Biochemical influent 200 1. 210 210 130 120 <br /> Oxygen Demand <br /> (m91L) effluent <5? <5 <5 <5 <5 . <br /> influent 180, 170 210 250 150 <br /> Suspendedaeration <br /> i <br /> Solids chamber 7 � !f <5 <5 <5 <5 <br /> (mg/L) ! <br /> effluent 7 ,1 1 <5 <5 <5 <5 <br /> influent 150 140 170 180 130 <br /> Volatile K <br /> aeration JSus ended 6 <br /> i. <5 <5 <5 <5 <br /> Solids chamber I <br /> ( L) effluent 6 <5 <5 <5 <5 <br /> 45 Minute <br /> Settleable aeration <5 <5 <5 <5 <5 <br /> Solids chamber <br /> PLIL) <br /> (1) Siteproblem - --- -- ------:` - Nates: . <br /> (2) Malfunction of system under test k ii <br /> (3) Weather problem <br /> (4) Other <br /> i <br /> TGS/3-92 <br /> C=10 <br />