STATION DR-603 DR-603 DR-603 DR-603 DR-603 DR-603
Date 4/23/2009 3/11/2009 2/4/2009 12/17/2008 11/19/2008 10/17/2008
Time 2:30 11:30 11:45 12:25 12:30 12:30
Weather Part cloudy mostly sun part cloudy overcast clear Rain
Tidal Level non-tidal non-tidal non-tidal non-tidal non-tidal non-tidal
Flow Rate (kt) 1.9 2.8 3.4 moderate 2.3 NA
Water Color normal normal normal normal normal normal
Max. Water Depth (m) 1.8 NA NA NA NA NA
Air Temperature (*C) 19.5 16 1   2 11
Water Temperature (*C) 18 13.5 2 9.5 5 21
Transparency Tube (cm) 105 120+ 120+ 94 120+ 106
Secchi Depth (cm) 120 190 200+ NA 263 NA
**Transparency Depth (cm) 120 190 200 94 263 106
D.O. (Lamotte) Trial #1 8.5 10 12 8.8 9 5.9
D.O. (Lamotte) Trial #2 8.1 10 11 8.6 9.5 4.9
D.O. Average 8.3 10 11.5 8.7 9.25 5.4
D.O. Saturation (%) 90 97 92 77 74 63
pH (Lamotte) 6.5 6.5 6.5 6.5 6.5 6.5
pH (Hannah Meter) 7.6 8.1 8 8.5 7.4 5.6
Salinity (reftractometer-ppt) 0 0 0 0 0 0
Nitrate (vacu-vials/Spec 20-ppm) NA 0.07 0.08 NA 0.08 0.09
Phosphate (vacu-vials/Spec 20-ppm) NA 0.08 0.03 NA 0.42 0.17