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Data Anomalies at USGS Site 01651000
April 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
Turbidity 2007-04-30 20:45 530
Turbidity 2007-04-30 21:30 180
Turbidity 2007-04-30 21:45 700
pH 2007-04-25 17:00 8.6
pH 2007-04-25 17:45 8.6
pH 2007-04-24 15:30 8.6
pH 2007-04-24 15:45 8.6
pH 2007-04-24 16:00 8.6
pH 2007-04-24 16:15 8.7
pH 2007-04-24 16:30 8.7
pH 2007-04-24 16:45 8.7
pH 2007-04-24 17:00 8.7
pH 2007-04-24 17:15 8.7
pH 2007-04-24 17:30 8.7
pH 2007-04-24 17:45 8.7
pH 2007-04-24 18:00 8.7
pH 2007-04-24 18:15 8.7
pH 2007-04-24 18:30 8.6
pH 2007-04-24 18:45 8.6
Turbidity 2007-04-23 08:45 490
pH 2007-04-23 15:45 8.6
pH 2007-04-23 16:00 8.6
pH 2007-04-23 16:15 8.6
pH 2007-04-23 16:30 8.6
pH 2007-04-23 16:45 8.6
pH 2007-04-23 17:00 8.6
pH 2007-04-23 17:15 8.6
pH 2007-04-23 17:30 8.6
pH 2007-04-23 17:45 8.6
pH 2007-04-23 18:00 8.6
Turbidity 2007-04-15 07:00 180
Turbidity 2007-04-15 07:15 180
Turbidity 2007-04-15 07:30 210
Turbidity 2007-04-15 07:45 210
Turbidity 2007-04-15 08:00 200
Turbidity 2007-04-15 08:15 180
Turbidity 2007-04-15 08:30 180
Turbidity 2007-04-15 08:45 170
Turbidity 2007-04-15 09:00 170
Turbidity 2007-04-15 09:15 160
Turbidity 2007-04-15 09:30 170
Turbidity 2007-04-15 09:45 170
Turbidity 2007-04-15 10:15 170
Turbidity 2007-04-15 10:30 190
Turbidity 2007-04-15 10:45 210
Turbidity 2007-04-15 11:00 230
Turbidity 2007-04-15 11:15 260
Turbidity 2007-04-15 11:30 270
Turbidity 2007-04-15 11:45 270
Turbidity 2007-04-15 12:00 260
Turbidity 2007-04-15 12:15 280
Turbidity 2007-04-15 12:30 340
Turbidity 2007-04-15 12:45 300
Turbidity 2007-04-15 13:00 280
Turbidity 2007-04-15 13:15 560
Turbidity 2007-04-15 13:30 340
Turbidity 2007-04-15 13:45 300
Turbidity 2007-04-15 14:00 390
Turbidity 2007-04-15 14:15 400
Turbidity 2007-04-15 14:30 340
Turbidity 2007-04-15 14:45 370
Turbidity 2007-04-15 15:00 400
Turbidity 2007-04-15 15:15 400
Turbidity 2007-04-15 15:30 320
Turbidity 2007-04-15 15:45 300
Turbidity 2007-04-15 16:00 400
Turbidity 2007-04-15 16:15 300
Turbidity 2007-04-15 16:30 300
Turbidity 2007-04-15 16:45 240
Turbidity 2007-04-15 17:00 230
Turbidity 2007-04-15 17:15 220
Turbidity 2007-04-15 17:30 220
Turbidity 2007-04-15 17:45 250
Turbidity 2007-04-15 18:00 190
Turbidity 2007-04-15 18:15 230
Turbidity 2007-04-15 18:30 200
Turbidity 2007-04-15 18:45 280
Turbidity 2007-04-15 19:00 300
Turbidity 2007-04-15 19:15 270
Turbidity 2007-04-15 19:30 210
Turbidity 2007-04-15 19:45 240
Turbidity 2007-04-15 20:00 200
Turbidity 2007-04-15 20:15 240
Turbidity 2007-04-15 20:30 240
Turbidity 2007-04-15 20:45 260
Turbidity 2007-04-15 21:00 190
Turbidity 2007-04-15 21:15 220
Turbidity 2007-04-15 21:30 200
Turbidity 2007-04-15 21:45 230
Turbidity 2007-04-15 22:00 190
Turbidity 2007-04-15 22:15 210
Turbidity 2007-04-15 22:30 180
Turbidity 2007-04-15 22:45 210
Turbidity 2007-04-15 23:00 160
Turbidity 2007-04-15 23:15 160
Turbidity 2007-04-15 23:30 160