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Vl {1 <br /> NSF International NSF International <br /> -:,::$Standard 40.-Residential Wastewater Treatment Systems - ==-� <br /> Y - - -- :-�: - - tandard'40' ResidentialWastewater Treatment Systems <br /> 1 Plant Effluent Plant Effluent <br /> M Week Beginning; June 3,20D1 Plant Code: NT-S05 Week Beginning: June 10,2001 Plant Code: NT-SOS <br /> N <br /> b O <br /> z Weeks into Test: 3 Weeks Into Test: 4 <br /> M <br /> 0 <br /> Weekend Dosing: Sunday 568 gallons Saturday 490 gallons Weekend Dosing: Sunday 490 gallons Saturday 471 gallons <br /> Monday Tuesday Wednesday Thursday Friday Monday Tuesday Wednesday Thursday Friday <br /> Dosed Volume(gallons) 568 516 481 446 460 Dosed Volume(gallons) 471 471 471 471 471 <br /> aeration aeration <br /> Dissolved Dissolved <br /> Oxygen(mg/L) chamber Oxygen(mg/L) chamber <br /> effluent effluent <br /> influent 15 16 16 16 l7 influent 16 15 15 16 15 <br /> 0 _� Temperature aeration Temperature aeration <br /> tC) chamber (C) chamber <br /> � � <br /> m o effluent 15 15 15 15 16 effluent 15 16 15 17 5 <br /> a ;I. influent 7.0 7.1 7.0 7.0 7.0 influent 7.0 7.1 7.1 6.9 7.0 <br /> M w aeration aeration <br /> C)- chamber <br /> o P . . -... . - :.._ . . . , :.:. ..,_ _ . .:. .:. _. ..,. .., pH <br /> - _ <br /> chamber <br /> _ .. . . <br /> �E effluent 6.9 6.8 6.7 6.6 6.5 effluent 6.4 6.5 6.4 6.3 6.4 <br /> ( @ Carbonaceous Carbonaceous <br /> (D � influent 120 120 140 120 210 <br /> influent 170 16Q 190 140 I50 <br /> Biochemical Biochemical <br /> 0 <br /> jo Q Oxygen Demand Oxygen Demand effluent <2 3 13 13 <2 <br /> m (mg/L) effluent 13 17 l l 4 <2 (mom) <br /> a <br /> o influent 300 160 210 470 170 influent 290 180 180 220 210 <br /> * Suspended aeration Suspended aeration <br /> W o Solids(mg/L) chamber Solids(mg/L) chamber <br /> 5 o effluent 4 4 4 <2 11 effluent 3 <2 <2 2 <2 <br /> influent <br /> 5. influent Volatile Influent <br /> aeration <br /> 0 -1Suspended chamber Suspended aeration <br /> chamber <br /> Solids(mg/L) effluent Solids(mg/L) effluent <br /> 45 Minute 45 Minute <br /> Settleable Solids aeration 6,0 4.2 4.4 4.0 4.4 Settleable Solids aeration <br /> chamber chamber 4.3 4.4 3.9 3.3 3.0 <br /> (mLIL) (MUL) <br /> (a)Site problem Notes: (a)Site problem Notes: <br /> (b)Malfunction of (b)Malfunction of <br /> system under test system under test <br /> (c}Weather problem (c)Weather problem <br /> > CD (d)Other (d)Other <br /> - w <br /> N O <br /> O <br /> O A <br /> N O) <br />