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Data Anomalies at USGS Site 01651000
June 2007
NW Branch Anacostia River near Hyattsville, MD

State standards:   Temperature <= 32.2°C   Turbidity <= 150 NTU   6.5 <= pH <=8.5   Dissolved oxygen > 5.0 mg/l

Parameter Date Value
Dissolved Oxygen 2007-06-30 01:30 4.9
Dissolved Oxygen 2007-06-30 01:45 4.9
Dissolved Oxygen 2007-06-30 02:30 4.9
Dissolved Oxygen 2007-06-30 02:45 4.8
Dissolved Oxygen 2007-06-30 03:00 4.8
Dissolved Oxygen 2007-06-30 03:15 4.8
Dissolved Oxygen 2007-06-30 03:30 4.8
Dissolved Oxygen 2007-06-30 03:45 4.9
Dissolved Oxygen 2007-06-30 04:00 4.8
Dissolved Oxygen 2007-06-30 04:15 4.9
Dissolved Oxygen 2007-06-30 04:30 4.7
Dissolved Oxygen 2007-06-30 04:45 4.2
Dissolved Oxygen 2007-06-30 05:00 4.3
Dissolved Oxygen 2007-06-30 05:15 4.3
Dissolved Oxygen 2007-06-30 05:30 4.7
Dissolved Oxygen 2007-06-30 05:45 4.8
Dissolved Oxygen 2007-06-30 06:00 4.9
Dissolved Oxygen 2007-06-30 06:15 4.8
Dissolved Oxygen 2007-06-30 06:30 4.6
Dissolved Oxygen 2007-06-30 06:45 4.9
Dissolved Oxygen 2007-06-30 07:00 4.7
Dissolved Oxygen 2007-06-30 07:30 4.9
Dissolved Oxygen 2007-06-30 07:45 4.9
Dissolved Oxygen 2007-06-29 00:00 4.8
Dissolved Oxygen 2007-06-29 00:15 4.6
Dissolved Oxygen 2007-06-29 00:30 4.6
Dissolved Oxygen 2007-06-29 00:45 4.4
Dissolved Oxygen 2007-06-29 01:00 4.4
Dissolved Oxygen 2007-06-29 01:15 4.2
Dissolved Oxygen 2007-06-29 01:30 4.1
Dissolved Oxygen 2007-06-29 02:45 4.1
Dissolved Oxygen 2007-06-29 03:00 4.1
Dissolved Oxygen 2007-06-29 03:30 4.1
Dissolved Oxygen 2007-06-29 03:45 4.2
Dissolved Oxygen 2007-06-29 04:00 4.4
Dissolved Oxygen 2007-06-29 04:15 4.4
Dissolved Oxygen 2007-06-29 04:30 4.7
Dissolved Oxygen 2007-06-29 04:45 4.6
Dissolved Oxygen 2007-06-29 05:00 4.7
Dissolved Oxygen 2007-06-29 05:15 4.7
Dissolved Oxygen 2007-06-29 05:30 4.6
Dissolved Oxygen 2007-06-29 05:45 4.6
Dissolved Oxygen 2007-06-29 06:00 4.6
Dissolved Oxygen 2007-06-29 06:15 4.6
Dissolved Oxygen 2007-06-29 06:30 4.5
Dissolved Oxygen 2007-06-29 06:45 4.6
Dissolved Oxygen 2007-06-29 07:00 4.6
Dissolved Oxygen 2007-06-29 07:15 4.7
Dissolved Oxygen 2007-06-29 07:30 4.7
Dissolved Oxygen 2007-06-29 07:45 4.8
Dissolved Oxygen 2007-06-29 08:00 4.9
Dissolved Oxygen 2007-06-29 08:15 4.9
Turbidity 2007-06-28 20:00 210
Turbidity 2007-06-28 20:15 200
Turbidity 2007-06-28 20:30 160
Turbidity 2007-06-28 20:45 160
Turbidity 2007-06-28 21:15 160
Dissolved Oxygen 2007-06-28 23:45 4.9
Turbidity 2007-06-22 13:45 190
Turbidity 2007-06-15 11:30 200
Turbidity 2007-06-15 16:45 280
Turbidity 2007-06-14 00:00 580
Turbidity 2007-06-14 00:15 590
Turbidity 2007-06-14 00:30 560
Turbidity 2007-06-14 00:45 570
Turbidity 2007-06-14 01:00 620
Turbidity 2007-06-14 01:15 530
Turbidity 2007-06-14 01:30 450
Turbidity 2007-06-14 01:45 510
Turbidity 2007-06-14 02:00 490
Turbidity 2007-06-14 02:15 560
Turbidity 2007-06-14 02:30 580
Turbidity 2007-06-14 02:45 620
Turbidity 2007-06-14 03:00 630
Turbidity 2007-06-14 03:15 620
Turbidity 2007-06-14 03:30 430
Turbidity 2007-06-14 03:45 570
Turbidity 2007-06-14 04:00 570
Turbidity 2007-06-14 04:15 520
Turbidity 2007-06-14 04:30 540
Turbidity 2007-06-14 04:45 440
Turbidity 2007-06-14 05:00 560
Turbidity 2007-06-14 05:15 560
Turbidity 2007-06-14 05:30 480
Turbidity 2007-06-14 05:45 360
Turbidity 2007-06-14 06:00 380
Turbidity 2007-06-14 06:15 360
Turbidity 2007-06-14 06:30 350
Turbidity 2007-06-14 06:45 340
Turbidity 2007-06-14 07:00 330
Turbidity 2007-06-14 07:15 300
Turbidity 2007-06-14 07:30 290
Turbidity 2007-06-14 07:45 270
Turbidity 2007-06-14 08:00 250
Turbidity 2007-06-14 08:15 280
Turbidity 2007-06-14 08:30 240
Turbidity 2007-06-14 10:15 200
Turbidity 2007-06-14 10:30 200
Turbidity 2007-06-14 10:45 190
Turbidity 2007-06-14 11:00 170
Turbidity 2007-06-14 11:15 180
Turbidity 2007-06-14 11:30 170
Turbidity 2007-06-14 11:45 180
Turbidity 2007-06-14 12:00 170
Turbidity 2007-06-14 12:15 170
Turbidity 2007-06-14 21:30 180
Turbidity 2007-06-14 23:30 180
Dissolved Oxygen 2007-06-13 00:45 4.9
Dissolved Oxygen 2007-06-13 01:00 4.7
Dissolved Oxygen 2007-06-13 01:15 4.6
Dissolved Oxygen 2007-06-13 01:30 4.6
Dissolved Oxygen 2007-06-13 01:45 4.6
Dissolved Oxygen 2007-06-13 02:00 4.5
Dissolved Oxygen 2007-06-13 02:15 4.5
Dissolved Oxygen 2007-06-13 02:30 4.4
Dissolved Oxygen 2007-06-13 02:45 4.4
Dissolved Oxygen 2007-06-13 03:00 4.3
Dissolved Oxygen 2007-06-13 03:15 4.4
Dissolved Oxygen 2007-06-13 03:30 4.3
Dissolved Oxygen 2007-06-13 03:45 4.3
Dissolved Oxygen 2007-06-13 04:00 4.2
Dissolved Oxygen 2007-06-13 04:15 4.2
Dissolved Oxygen 2007-06-13 04:30 4.2
Dissolved Oxygen 2007-06-13 04:45 4.1
Dissolved Oxygen 2007-06-13 06:00 4.1
Dissolved Oxygen 2007-06-13 06:15 4.1
Dissolved Oxygen 2007-06-13 06:30 4.1
Dissolved Oxygen 2007-06-13 06:45 4.2
Dissolved Oxygen 2007-06-13 07:00 4.2
Dissolved Oxygen 2007-06-13 07:15 4.2
Dissolved Oxygen 2007-06-13 07:30 4.3
Dissolved Oxygen 2007-06-13 07:45 4.2
Dissolved Oxygen 2007-06-13 08:00 4.4
Dissolved Oxygen 2007-06-13 08:15 4.5
Dissolved Oxygen 2007-06-13 08:30 4.5
Dissolved Oxygen 2007-06-13 08:45 4.4
Dissolved Oxygen 2007-06-13 09:00 4.6
Dissolved Oxygen 2007-06-13 09:15 4.7
Dissolved Oxygen 2007-06-13 09:30 4.8
Dissolved Oxygen 2007-06-13 09:45 4.9
Turbidity 2007-06-13 20:30 380
Turbidity 2007-06-13 21:15 240
Turbidity 2007-06-13 21:30 300
Turbidity 2007-06-13 22:00 370
Turbidity 2007-06-13 22:15 420
Turbidity 2007-06-13 22:30 420
Turbidity 2007-06-13 22:45 520
Turbidity 2007-06-13 23:00 730
Turbidity 2007-06-13 23:15 840
Turbidity 2007-06-13 23:30 690
Turbidity 2007-06-13 23:45 750
Turbidity 2007-06-08 21:00 220
Turbidity 2007-06-08 21:15 190
Turbidity 2007-06-08 21:30 160
Turbidity 2007-06-08 21:45 230
Turbidity 2007-06-08 22:00 210
Turbidity 2007-06-08 22:15 190
Turbidity 2007-06-08 22:30 180
Turbidity 2007-06-08 22:45 160
Turbidity 2007-06-07 00:15 560
Turbidity 2007-06-07 20:45 510