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NSF International NSF International <br /> m o Standard 40-Residential Wastewater Treatment Systems Standard 40-Residential Wastewater Treatment Systems <br /> 3' Plant Effluent Plant Effluent <br /> ° 1 Week Beginning: June 17,2001 Plant Code: NT-S05 Week Beginning: lune 24,2001 Plant Code: NT-S05 <br /> } <br /> � N <br /> LD p <br /> 0 <br /> 7 Weeks Into Test: 5 Weeks Into Test: 6 <br /> rn <br /> v <br /> Weekend Dosing: Sunday 471 gallons Saturday 473 gallons Weekend Dosing: Sunday 473 gallons Saturday 475 gallons <br /> Monday Tuesday Wednesday Thursday Friday Monday Tuesdayl Wednesday Thursday Friday <br /> Dosed Volume(gallons) 471 471 471 472 472 Dosed Volume(gallons) 473 474 474 475 475 <br /> Dissolved aeration chamber aeration <br /> Dissolved <br /> Oxygen(mg/L) Oxygen(mg/L) chamber <br /> effluent effluent <br /> influent 15 16 17 l8 16 influent 16 16 16 17 16 <br /> c _� Temperature aeration Temperature aeration <br /> (C) chamber (C) chamber <br /> m -0 effluent 16 16 17 17 18 effluent 17 17 17 17 16 <br /> 0 <br /> ;:4 influent 7.0 6.9 7.0 7.0 7.0 influent 7.0 7.0 6.7 6.7 6.9 <br /> pH aeration pH aeration <br /> CL o chamber chamber <br /> U effluent 6.4 6.4 6.4 6.4 6.4 effluent 6.4 6.5 6.5 6.4 6.5 <br /> `D Carbonaceous Carbonaceous <br /> (D v Biochemical influent 61 190 160 190 250 Biochemical influent 140 150 250 320 490 <br /> o a Oxygen Demand Oxygen Demand <br /> C: effluent <2 <2 <2 9 3 effluent <2 <2 4 4 5 <br /> m 0 (mg/L) (mg/L) <br /> C- influent 79 180 I50 200 250 influent 200 200 540 1200 840 <br /> o � <br /> z g Suspended aeration Suspended aeration <br /> U o Solids(mg/L) chamber Solids(mg(L) chamber <br /> E o effluent 2 2 3 <2 2 effluent 4 3 4 4 3 <br /> > > Volatile influent influent <br /> Volatile <br /> aeration aeration <br /> a- <br /> Suspended chamber Suspended <br /> w Solids(mg/L) Solids(mg(L) chamber <br /> effluent effluent <br /> 45 Minute 45 Minute <br /> Settleable Solids aeration 3.6 3.6 3.5 3.8 3.7 Settleable Solids aeration 5.2 4.7 5.1 5.2 4.2 <br /> (mL/L) chamber chamber <br /> (m1JL) <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 /> y m (d)Other (d)Other <br /> � w <br /> NO <br /> O --' <br /> O A <br /> I N � <br /> i <br />' ti u <br />� r ex <br />