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NSF International NSF International <br /> nO Standard 40-Residential Wastewater Treatment Systems Standard 40-Residential Wastewater Treatment Systems <br /> Plant Effluent Plant Effluent <br /> oWeek Beginning: August 12,2001 Plant Code: NT-S05 Week Beginning: August 19,2001 Plant Code: NT-S05 <br /> o Weeks Into Test: 13 Weeks Into Test: 14 <br /> rn <br /> 0 <br /> Weekend Dosing: Sunday 485 gallons Saturday 487 gallons Weekend Dosing: Sunday 485 gallons Saturday 474 gallons <br /> Monday Tuesday Wednesday Thursday Friday Monday Tuesday Wednesday Thursday Friday <br /> Dosed Volume(gallons) 490 490 478 491 492 Dosed Volume(gallons) 483 481 479 477 475 <br /> Dissolved <br /> Dissolved aeration aeration <br /> chamber <br /> Oxygen(mg/L) Oxygen(mg/L) chamber <br /> effluent effluent <br /> influent 18 l8 18 18 19 1 influent 18 18 17 17 <br /> 0 =r Temperature aeration Temperature aeration <br /> E En (C) chamber (C) chamber <br /> n effluent 20 20 20 20 20 effluent 19 19 18 18 <br /> v0 <br /> :Zinfluent 7.0 7.3 7.1 7.2 6.9 influent 6.9 7.1 7.0 7.0 <br /> m w aeration p H <br /> cn <br /> aeration <br /> (n pH chamber chamber <br /> 0- 0 <br /> Q effluent 6.4 6.5 6.5 6.2 6.4 effluent 6.3 6.2 6.2 6.3 <br /> `° CarbonaceousCarbonaceous <br /> influent 140 160 190 180 190 influent 140 160 200 160 <br /> Biochemical Biochemical <br /> o n Oxygen Demand Oxygen Demand <br /> y effluent <2 <2 7 <10 3 (mg/L) effluent 6 9 10 9 <br /> aro (mg/L) <br /> a influent 130 570 480 150 190 influent 180 110 110 85 <br /> o <br /> Z Suspended aeration Suspended aeration <br /> -n o Solids(mg/L) chamber Solids(mglL) chamber <br /> a o effluent 3 <2 <2 <2 2 effluent 4 2 4 4 <br /> influent Volakile influent <br /> Volatile <br /> o Suspended aeration Suspended aeration <br /> m <br /> Solids(m IL chamber Solids(mg/L) chamber g ) ffluent <br /> effluent e <br /> 45 Minute 45 Minute <br /> aeration aeration <br /> Settleable Solids chamber chamber <br /> 3.5 2.7 2.7 2.5 2.8 Settleable Solids 3.1 2.7 3.8 3.5 <br /> (�L) (M�) <br /> (a)Site problem Notes: (a)Site problem Notes: August 20,2001 -Samples were missed due to <br /> (b)Malfunction of (b)Malfunction of miscommunication with operators. <br /> system under test system under test <br /> to <br /> (c)Weather problem (c)Weather problem <br /> y m (d)Other (d)Other <br /> -0 W <br /> CO <br /> N O <br /> O <br /> O A <br /> N O) <br /> 4� /4 <br />