Station FFFC1 - First Mallard, San Francisco Bay Reserve, CA
Owned and maintained by National Estuarine Research Reserve System
NERRS Water Quality Station
38.195 N 122.033 W (38°11'42" N 122°1'58" W)
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These oceanographic data are displayed in rounded times. Click on the graph icon in the table below to see a time series plot of the last five days of that observation. | |
| Depth (DEPTH): | 6.6 ft |
 Ocean Temperature (OTMP): | 68.72 °F |
| Conductivity (COND): | 7.97 mS/cm |
| Salinity (SAL): | 4.40 psu |
| Oxygen Saturation (O2PCT): | 83.0% |
| Oxygen Concentration (O2PPM): | 7.30 ppm |
| Turbidity (TURB): | 28 FTU |
| pH (PH): | 7.50 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-06-24 09:15 pm | 6.2 | 68.90 | 7.87 | 4.40 | 82.60 | 7.30 | - | 27 | 7.40 | - |
| 2025-06-24 09:00 pm | 6.2 | 69.44 | 7.79 | 4.30 | 83.40 | 7.30 | - | 31 | 7.50 | - |
| 2025-06-24 08:45 pm | 6.2 | 69.98 | 7.67 | 4.30 | 83.30 | 7.20 | - | 24 | 7.40 | - |
| 2025-06-24 08:30 pm | 6.2 | 70.88 | 7.61 | 4.20 | 86.70 | 7.50 | - | 22 | 7.50 | - |
| 2025-06-24 08:15 pm | 6.2 | 71.06 | 7.58 | 4.20 | 86.50 | 7.40 | - | 22 | 7.50 | - |
| 2025-06-24 08:00 pm | 6.2 | 71.06 | 7.63 | 4.20 | 87.10 | 7.50 | - | 20 | 7.50 | - |
| 2025-06-24 07:45 pm | 6.2 | 71.06 | 7.56 | 4.20 | 86.30 | 7.40 | - | 23 | 7.50 | - |
| 2025-06-24 07:30 pm | 6.6 | 71.24 | 7.55 | 4.20 | 86.20 | 7.40 | - | 23 | 7.50 | - |
| 2025-06-24 07:15 pm | 6.6 | 71.24 | 7.54 | 4.20 | 85.40 | 7.30 | - | 23 | 7.40 | - |
| 2025-06-24 07:00 pm | 6.6 | 71.24 | 7.54 | 4.20 | 85.40 | 7.30 | - | 21 | 7.40 | - |
| 2025-06-24 06:45 pm | 6.9 | 71.42 | 7.55 | 4.20 | 86.20 | 7.40 | - | 23 | 7.40 | - |
| 2025-06-24 06:30 pm | 7.2 | 71.42 | 7.53 | 4.20 | 86.60 | 7.40 | - | 25 | 7.40 | - |
| 2025-06-24 06:15 pm | 7.2 | 71.06 | 7.47 | 4.10 | 84.40 | 7.30 | - | 23 | 7.40 | - |
| 2025-06-24 06:00 pm | 7.5 | 70.70 | 7.22 | 4.00 | 84.20 | 7.30 | - | 25 | 7.40 | - |
| 2025-06-24 05:45 pm | 7.5 | 70.52 | 6.79 | 3.70 | 83.80 | 7.30 | - | 27 | 7.40 | - |
| 2025-06-24 05:30 pm | 7.5 | 70.34 | 6.50 | 3.60 | 83.20 | 7.20 | - | 31 | 7.40 | - |
| 2025-06-24 05:15 pm | 7.9 | 70.34 | 6.65 | 3.70 | 82.00 | 7.10 | - | 31 | 7.40 | - |
| 2025-06-24 05:00 pm | 7.9 | 70.16 | 6.49 | 3.60 | 81.50 | 7.10 | - | 33 | 7.40 | - |
| 2025-06-24 04:45 pm | 7.9 | 69.98 | 6.58 | 3.60 | 80.60 | 7.00 | - | 35 | 7.40 | - |
| 2025-06-24 04:30 pm | 7.9 | 69.80 | 6.50 | 3.60 | 80.00 | 7.00 | - | 38 | 7.40 | - |
| 2025-06-24 04:15 pm | 7.9 | 69.80 | 6.73 | 3.70 | 79.10 | 6.90 | - | 39 | 7.30 | - |
| 2025-06-24 04:00 pm | 7.9 | 69.98 | 7.11 | 3.90 | 78.30 | 6.80 | - | 37 | 7.30 | - |
| 2025-06-24 03:45 pm | 7.9 | 69.80 | 7.20 | 4.00 | 77.40 | 6.80 | - | 36 | 7.30 | - |
| 2025-06-24 03:30 pm | 7.5 | 69.62 | 7.21 | 4.00 | 76.60 | 6.70 | - | 35 | 7.30 | - |
| 2025-06-24 03:15 pm | 7.5 | 69.62 | 7.31 | 4.00 | 75.60 | 6.60 | - | 38 | 7.30 | - |
| 2025-06-24 03:00 pm | 7.5 | 69.62 | 7.39 | 4.10 | 75.90 | 6.60 | - | 43 | 7.30 | - |
| 2025-06-24 02:45 pm | 7.5 | 69.62 | 7.42 | 4.10 | 75.50 | 6.60 | - | 40 | 7.30 | - |
| 2025-06-24 02:30 pm | 7.2 | 69.80 | 7.47 | 4.10 | 75.90 | 6.60 | - | 37 | 7.30 | - |
| 2025-06-24 02:15 pm | 7.2 | 69.80 | 7.51 | 4.20 | 75.80 | 6.60 | - | 36 | 7.30 | - |
| 2025-06-24 02:00 pm | 7.2 | 69.98 | 7.56 | 4.20 | 76.40 | 6.60 | - | 37 | 7.30 | - |
| 2025-06-24 01:45 pm | 6.9 | 69.98 | 7.61 | 4.20 | 76.50 | 6.70 | - | 33 | 7.30 | - |
| 2025-06-24 01:30 pm | 6.9 | 69.62 | 7.59 | 4.20 | 77.00 | 6.70 | - | 34 | 7.30 | - |
| 2025-06-24 01:15 pm | 6.6 | 69.08 | 7.48 | 4.10 | 76.00 | 6.70 | - | 30 | 7.40 | - |
| 2025-06-24 01:00 pm | 6.6 | 69.08 | 7.39 | 4.10 | 77.30 | 6.80 | - | 24 | 7.40 | - |
| 2025-06-24 12:45 pm | 6.2 | 68.90 | 7.62 | 4.20 | 79.40 | 7.00 | - | 26 | 7.40 | - |
| 2025-06-24 12:30 pm | 5.9 | 68.90 | 7.83 | 4.40 | 81.60 | 7.20 | - | 31 | 7.40 | - |
| 2025-06-24 12:15 pm | 5.6 | 68.90 | 7.97 | 4.40 | 82.70 | 7.30 | - | 34 | 7.40 | - |
| 2025-06-24 12:00 pm | 5.2 | 68.72 | 7.89 | 4.40 | 81.80 | 7.20 | - | 37 | 7.40 | - |
| 2025-06-24 11:45 am | 4.6 | 68.36 | 7.78 | 4.30 | 79.90 | 7.10 | - | 39 | 7.40 | - |
| 2025-06-24 11:30 am | 4.3 | 67.82 | 7.32 | 4.10 | 74.50 | 6.60 | - | 31 | 7.40 | - |
| 2025-06-24 11:15 am | 3.9 | 67.82 | 7.36 | 4.10 | 73.90 | 6.60 | - | 37 | 7.40 | - |
| 2025-06-24 11:00 am | 3.6 | 67.64 | 7.56 | 4.20 | 70.50 | 6.30 | - | 43 | 7.30 | - |
| 2025-06-24 10:45 am | 3.3 | 67.10 | 7.90 | 4.40 | 62.10 | 5.60 | - | 41 | 7.20 | - |
| 2025-06-24 10:30 am | 3.3 | 66.92 | 7.92 | 4.40 | 63.30 | 5.70 | - | 49 | 7.20 | - |
| 2025-06-24 10:15 am | 3.3 | 66.74 | 7.90 | 4.40 | 62.60 | 5.60 | - | 54 | 7.20 | - |
| 2025-06-24 10:00 am | 3.6 | 66.56 | 7.89 | 4.40 | 61.70 | 5.60 | - | 40 | 7.20 | - |
| 2025-06-24 09:45 am | 3.6 | 66.38 | 7.85 | 4.40 | 61.10 | 5.50 | - | 44 | 7.20 | - |
| 2025-06-24 09:30 am | 3.9 | 66.20 | 7.83 | 4.40 | 60.20 | 5.40 | - | 39 | 7.20 | - |
| 2025-06-24 09:15 am | 3.9 | 66.20 | 7.80 | 4.30 | 60.00 | 5.40 | - | 38 | 7.20 | - |
| 2025-06-24 09:00 am | 4.3 | 66.02 | 7.76 | 4.30 | 59.60 | 5.40 | - | 41 | 7.20 | - |
| 2025-06-24 08:45 am | 4.3 | 66.02 | 7.73 | 4.30 | 59.30 | 5.40 | - | 39 | 7.20 | - |
| 2025-06-24 08:30 am | 4.6 | 66.20 | 7.69 | 4.30 | 59.60 | 5.40 | - | 36 | 7.20 | - |
| 2025-06-24 08:15 am | 4.9 | 66.20 | 7.63 | 4.20 | 60.20 | 5.50 | - | 33 | 7.20 | - |
| 2025-06-24 08:00 am | 4.9 | 66.20 | 7.60 | 4.20 | 61.80 | 5.60 | - | 32 | 7.20 | - |
| 2025-06-24 07:45 am | 5.2 | 66.38 | 7.54 | 4.20 | 62.30 | 5.60 | - | 29 | 7.20 | - |
| 2025-06-24 07:30 am | 5.2 | 66.38 | 7.45 | 4.10 | 63.80 | 5.80 | - | 29 | 7.30 | - |
| 2025-06-24 07:15 am | 5.6 | 66.56 | 7.39 | 4.10 | 65.10 | 5.90 | - | 29 | 7.30 | - |
| 2025-06-24 07:00 am | 5.9 | 66.56 | 7.26 | 4.00 | 66.70 | 6.00 | - | 27 | 7.30 | - |
| 2025-06-24 06:45 am | 5.9 | 66.74 | 7.17 | 4.00 | 67.20 | 6.10 | - | 28 | 7.30 | - |
| 2025-06-24 06:30 am | 6.2 | 66.92 | 7.04 | 3.90 | 68.30 | 6.10 | - | 29 | 7.30 | - |
| 2025-06-24 06:15 am | 6.2 | 66.92 | 6.88 | 3.80 | 69.40 | 6.30 | - | 31 | 7.30 | - |
| 2025-06-24 06:00 am | 6.6 | 67.10 | 6.75 | 3.70 | 70.60 | 6.30 | - | 32 | 7.30 | - |
| 2025-06-24 05:45 am | 6.6 | 67.28 | 6.64 | 3.70 | 70.90 | 6.40 | - | 33 | 7.30 | - |
| 2025-06-24 05:30 am | 6.9 | 67.46 | 6.47 | 3.60 | 71.70 | 6.40 | - | 34 | 7.30 | - |
| 2025-06-24 05:15 am | 7.2 | 67.46 | 6.24 | 3.40 | 72.40 | 6.50 | - | 37 | 7.30 | - |
| 2025-06-24 05:00 am | 7.2 | 67.64 | 5.99 | 3.30 | 73.10 | 6.60 | - | 44 | 7.30 | - |
| 2025-06-24 04:45 am | 7.5 | 67.82 | 5.71 | 3.10 | 73.80 | 6.60 | - | 51 | 7.30 | - |
| 2025-06-24 04:30 am | 7.9 | 68.00 | 5.46 | 3.00 | 75.20 | 6.70 | - | 83 | 7.40 | - |
| 2025-06-24 04:15 am | 7.9 | 68.18 | 5.11 | 2.80 | 76.60 | 6.80 | - | 134 | 7.40 | - |
| 2025-06-24 04:00 am | 8.2 | 68.18 | 4.93 | 2.70 | 78.10 | 7.00 | - | 160 | 7.40 | - |
| 2025-06-24 03:45 am | 8.5 | 68.18 | 4.96 | 2.70 | 79.80 | 7.10 | - | 123 | 7.40 | - |
| 2025-06-24 03:30 am | 8.9 | 68.36 | 5.26 | 2.90 | 80.70 | 7.20 | - | 89 | 7.40 | - |
| 2025-06-24 03:15 am | 8.9 | 68.36 | 5.59 | 3.00 | 81.70 | 7.30 | - | 48 | 7.40 | - |
| 2025-06-24 03:00 am | 9.2 | 68.54 | 6.05 | 3.30 | 81.70 | 7.20 | - | 60 | 7.40 | - |
| 2025-06-24 02:45 am | 9.2 | 68.72 | 6.20 | 3.40 | 81.20 | 7.20 | - | 67 | 7.40 | - |
| 2025-06-24 02:30 am | 9.2 | 68.72 | 6.14 | 3.40 | 81.70 | 7.20 | - | 76 | 7.40 | - |
| 2025-06-24 02:15 am | 9.2 | 68.72 | 5.88 | 3.20 | 81.50 | 7.20 | - | 82 | 7.40 | - |
| 2025-06-24 02:00 am | 9.2 | 68.72 | 5.54 | 3.00 | 81.20 | 7.20 | - | 85 | 7.40 | - |
| 2025-06-24 01:45 am | 9.2 | 68.72 | 5.26 | 2.80 | 81.10 | 7.20 | - | 86 | 7.40 | - |
| 2025-06-24 01:30 am | 9.2 | 68.72 | 5.00 | 2.70 | 81.10 | 7.20 | - | 84 | 7.40 | - |
| 2025-06-24 01:15 am | 9.2 | 68.72 | 4.81 | 2.60 | 81.10 | 7.20 | - | 89 | 7.40 | - |
| 2025-06-24 01:00 am | 9.2 | 68.90 | 4.66 | 2.50 | 81.00 | 7.20 | - | 88 | 7.40 | - |
| 2025-06-24 12:45 am | 9.2 | 68.90 | 4.61 | 2.50 | 80.70 | 7.20 | - | 86 | 7.40 | - |
| 2025-06-24 12:30 am | 8.9 | 69.08 | 4.67 | 2.50 | 80.60 | 7.10 | - | 82 | 7.40 | - |
| 2025-06-24 12:15 am | 8.9 | 69.44 | 4.75 | 2.60 | 80.70 | 7.10 | - | 79 | 7.40 | - |
| 2025-06-24 12:00 am | 8.9 | 69.62 | 4.84 | 2.60 | 80.30 | 7.10 | - | 71 | 7.40 | - |
| 2025-06-23 11:45 pm | 8.5 | 69.98 | 5.12 | 2.80 | 79.60 | 7.00 | - | 62 | 7.40 | - |
| 2025-06-23 11:30 pm | 8.5 | 70.16 | 5.24 | 2.80 | 79.60 | 7.00 | - | 61 | 7.40 | - |
| 2025-06-23 11:15 pm | 8.2 | 70.52 | 5.42 | 2.90 | 80.10 | 7.00 | - | 54 | 7.40 | - |
| 2025-06-23 11:00 pm | 8.2 | 70.88 | 5.64 | 3.10 | 80.80 | 7.00 | - | 49 | 7.40 | - |
| 2025-06-23 10:45 pm | 8.2 | 71.06 | 6.11 | 3.30 | 81.20 | 7.00 | - | 43 | 7.40 | - |
| 2025-06-23 10:30 pm | 7.9 | 70.88 | 6.74 | 3.70 | 81.00 | 7.00 | - | 38 | 7.40 | - |
| 2025-06-23 10:15 pm | 7.5 | 69.98 | 7.43 | 4.10 | 80.50 | 7.00 | - | 38 | 7.40 | - |
| 2025-06-23 10:00 pm | 7.5 | 69.44 | 7.73 | 4.30 | 78.80 | 6.90 | - | 35 | 7.40 | - |
Links which are specific to this station are listed below:
Real Time Data in tabular form for the last forty-five days.
Historical Data & Climatic Summaries for quality controlled data for prior months and years.
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