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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(24 hours for tsunami stations)
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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): | 7.5 ft |
 Ocean Temperature (OTMP): | 54.14 °F |
| Conductivity (COND): | 10.07 mS/cm |
| Salinity (SAL): | 5.70 psu |
| Oxygen Saturation (O2PCT): | 79.5% |
| Oxygen Concentration (O2PPM): | 8.20 ppm |
| Turbidity (TURB): | 16 FTU |
| pH (PH): | 7.60 |
| TIME (PST) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-26 08:15 pm | 7.9 | 54.14 | 10.12 | 5.70 | 79.90 | 8.30 | - | 17 | 7.60 | - |
| 2025-12-26 08:00 pm | 7.9 | 54.14 | 10.14 | 5.80 | 80.20 | 8.30 | - | 16 | 7.60 | - |
| 2025-12-26 07:45 pm | 8.2 | 54.32 | 10.17 | 5.80 | 80.30 | 8.30 | - | 17 | 7.60 | - |
| 2025-12-26 07:30 pm | 8.2 | 54.32 | 10.16 | 5.80 | 80.30 | 8.30 | - | 17 | 7.60 | - |
| 2025-12-26 07:15 pm | 8.2 | 54.32 | 10.16 | 5.80 | 80.30 | 8.30 | - | 18 | 7.60 | - |
| 2025-12-26 07:00 pm | 8.5 | 54.50 | 10.15 | 5.80 | 80.40 | 8.30 | - | 19 | 7.50 | - |
| 2025-12-26 06:45 pm | 8.5 | 54.14 | 9.44 | 5.30 | 80.30 | 8.30 | - | 21 | 7.50 | - |
| 2025-12-26 06:30 pm | 8.5 | 54.32 | 9.89 | 5.60 | 80.10 | 8.30 | - | 24 | 7.50 | - |
| 2025-12-26 06:15 pm | 8.5 | 54.50 | 10.07 | 5.70 | 79.30 | 8.20 | - | 18 | 7.50 | - |
| 2025-12-26 06:00 pm | 8.5 | 54.32 | 9.89 | 5.60 | 80.20 | 8.30 | - | 17 | 7.50 | - |
| 2025-12-26 05:45 pm | 8.5 | 54.32 | 9.86 | 5.60 | 80.50 | 8.30 | - | 20 | 7.50 | - |
| 2025-12-26 05:30 pm | 8.5 | 54.32 | 9.84 | 5.60 | 80.10 | 8.30 | - | 17 | 7.50 | - |
| 2025-12-26 05:15 pm | 8.2 | 54.50 | 10.02 | 5.70 | 80.70 | 8.30 | - | 20 | 7.50 | - |
| 2025-12-26 05:00 pm | 8.2 | 54.50 | 10.18 | 5.80 | 80.80 | 8.30 | - | 21 | 7.60 | - |
| 2025-12-26 04:45 pm | 8.2 | 54.50 | 10.22 | 5.80 | 80.40 | 8.30 | - | 22 | 7.60 | - |
| 2025-12-26 04:30 pm | 7.9 | 54.50 | 10.24 | 5.80 | 80.40 | 8.30 | - | 22 | 7.60 | - |
| 2025-12-26 04:15 pm | 7.9 | 54.50 | 10.21 | 5.80 | 80.50 | 8.30 | - | 23 | 7.60 | - |
| 2025-12-26 04:00 pm | 7.9 | 54.50 | 10.19 | 5.80 | 80.40 | 8.30 | - | 18 | 7.60 | - |
| 2025-12-26 03:45 pm | 7.5 | 54.50 | 10.16 | 5.80 | 80.10 | 8.20 | - | 14 | 7.60 | - |
| 2025-12-26 03:30 pm | 7.5 | 54.50 | 10.15 | 5.80 | 80.30 | 8.30 | - | 18 | 7.60 | - |
| 2025-12-26 03:15 pm | 7.2 | 54.50 | 10.13 | 5.70 | 80.50 | 8.30 | - | 16 | 7.60 | - |
| 2025-12-26 03:00 pm | 7.2 | 54.50 | 10.11 | 5.70 | 80.40 | 8.30 | - | 17 | 7.60 | - |
| 2025-12-26 02:45 pm | 6.9 | 54.50 | 10.11 | 5.70 | 80.00 | 8.20 | - | 20 | 7.60 | - |
| 2025-12-26 02:30 pm | 6.9 | 54.50 | 10.10 | 5.70 | 80.50 | 8.30 | - | 17 | 7.60 | - |
| 2025-12-26 02:15 pm | 6.9 | 54.50 | 10.07 | 5.70 | 80.20 | 8.20 | - | 17 | 7.60 | - |
| 2025-12-26 02:00 pm | 6.9 | 54.50 | 10.02 | 5.70 | 79.80 | 8.20 | - | 19 | 7.60 | - |
| 2025-12-26 01:45 pm | 6.6 | 54.68 | 9.93 | 5.60 | 76.20 | 7.80 | - | 16 | 7.50 | - |
| 2025-12-26 01:30 pm | 6.6 | 54.68 | 9.88 | 5.60 | 78.30 | 8.10 | - | 18 | 7.50 | - |
| 2025-12-26 01:15 pm | 6.6 | 54.68 | 9.86 | 5.60 | 78.00 | 8.00 | - | 17 | 7.50 | - |
| 2025-12-26 01:00 pm | 6.9 | 54.50 | 9.82 | 5.60 | 77.90 | 8.00 | - | 16 | 7.50 | - |
| 2025-12-26 12:45 pm | 6.9 | 54.50 | 9.40 | 5.30 | 73.50 | 7.60 | - | 19 | 7.50 | - |
| 2025-12-26 12:30 pm | 6.9 | 54.50 | 9.44 | 5.30 | 73.10 | 7.50 | - | 18 | 7.50 | - |
| 2025-12-26 12:15 pm | 6.9 | 54.50 | 9.43 | 5.30 | 73.40 | 7.60 | - | 17 | 7.50 | - |
| 2025-12-26 12:00 pm | 6.9 | 54.50 | 9.38 | 5.30 | 73.10 | 7.50 | - | 16 | 7.50 | - |
| 2025-12-26 11:45 am | 7.2 | 54.32 | 9.40 | 5.30 | 73.50 | 7.60 | - | 16 | 7.50 | - |
| 2025-12-26 11:30 am | 7.2 | 54.32 | 9.48 | 5.40 | 73.40 | 7.60 | - | 16 | 7.50 | - |
| 2025-12-26 11:15 am | 7.2 | 54.32 | 9.52 | 5.40 | 73.50 | 7.60 | - | 17 | 7.50 | - |
| 2025-12-26 11:00 am | 7.5 | 54.14 | 9.59 | 5.40 | 73.90 | 7.60 | - | 18 | 7.50 | - |
| 2025-12-26 10:45 am | 7.5 | 54.14 | 9.73 | 5.50 | 74.10 | 7.70 | - | 17 | 7.50 | - |
| 2025-12-26 10:30 am | 7.9 | 54.14 | 9.76 | 5.50 | 74.60 | 7.70 | - | 16 | 7.50 | - |
| 2025-12-26 10:15 am | 7.9 | 54.14 | 9.79 | 5.50 | 74.90 | 7.80 | - | 15 | 7.50 | - |
| 2025-12-26 10:00 am | 8.2 | 53.96 | 9.87 | 5.60 | 75.30 | 7.80 | - | 17 | 7.50 | - |
| 2025-12-26 09:45 am | 8.2 | 53.78 | 9.90 | 5.60 | 75.90 | 7.90 | - | 16 | 7.50 | - |
| 2025-12-26 09:30 am | 8.2 | 53.96 | 10.10 | 5.70 | 75.50 | 7.80 | - | 17 | 7.50 | - |
| 2025-12-26 09:15 am | 8.5 | 53.96 | 9.92 | 5.60 | 75.90 | 7.90 | - | 23 | 7.40 | - |
| 2025-12-26 09:00 am | 8.5 | 53.78 | 9.84 | 5.60 | 75.80 | 7.90 | - | 20 | 7.40 | - |
| 2025-12-26 08:45 am | 8.9 | 53.78 | 9.62 | 5.40 | 77.10 | 8.00 | - | 21 | 7.50 | - |
| 2025-12-26 08:30 am | 8.9 | 53.78 | 9.84 | 5.60 | 76.40 | 7.90 | - | 22 | 7.40 | - |
| 2025-12-26 08:15 am | 8.9 | 53.60 | 8.94 | 5.00 | 78.00 | 8.10 | - | 20 | 7.50 | - |
| 2025-12-26 08:00 am | 8.9 | 53.60 | 8.48 | 4.70 | 79.10 | 8.30 | - | 21 | 7.50 | - |
| 2025-12-26 07:45 am | 8.9 | 53.60 | 8.32 | 4.70 | 79.40 | 8.30 | - | 18 | 7.50 | - |
| 2025-12-26 07:30 am | 8.9 | 53.42 | 7.64 | 4.20 | 81.20 | 8.60 | - | 22 | 7.50 | - |
| 2025-12-26 07:15 am | 8.9 | 53.42 | 7.85 | 4.40 | 80.80 | 8.50 | - | 24 | 7.50 | - |
| 2025-12-26 07:00 am | 8.5 | 53.60 | 8.30 | 4.60 | 79.90 | 8.40 | - | 25 | 7.50 | - |
| 2025-12-26 06:45 am | 8.5 | 53.60 | 8.91 | 5.00 | 78.80 | 8.20 | - | 25 | 7.50 | - |
| 2025-12-26 06:30 am | 8.5 | 53.78 | 9.50 | 5.40 | 77.70 | 8.10 | - | 24 | 7.50 | - |
| 2025-12-26 06:15 am | 8.5 | 53.96 | 10.01 | 5.70 | 76.80 | 8.00 | - | 24 | 7.40 | - |
| 2025-12-26 06:00 am | 8.2 | 53.96 | 10.24 | 5.80 | 76.20 | 7.90 | - | 24 | 7.40 | - |
| 2025-12-26 05:45 am | 8.2 | 53.96 | 10.27 | 5.80 | 76.20 | 7.90 | - | 27 | 7.50 | - |
| 2025-12-26 05:30 am | 8.2 | 54.14 | 10.28 | 5.80 | 76.30 | 7.90 | - | 24 | 7.50 | - |
| 2025-12-26 05:15 am | 7.9 | 54.14 | 10.24 | 5.80 | 75.70 | 7.80 | - | 22 | 7.50 | - |
| 2025-12-26 05:00 am | 7.9 | 54.32 | 10.16 | 5.80 | 75.50 | 7.80 | - | 29 | 7.50 | - |
| 2025-12-26 04:45 am | 7.5 | 54.32 | 10.02 | 5.70 | 74.70 | 7.70 | - | 19 | 7.50 | - |
| 2025-12-26 04:30 am | 7.5 | 54.50 | 9.87 | 5.60 | 74.30 | 7.70 | - | 21 | 7.50 | - |
| 2025-12-26 04:15 am | 7.2 | 54.50 | 9.56 | 5.40 | 73.30 | 7.50 | - | 21 | 7.50 | - |
| 2025-12-26 04:00 am | 7.2 | 54.68 | 9.38 | 5.30 | 73.70 | 7.60 | - | 18 | 7.50 | - |
| 2025-12-26 03:45 am | 6.9 | 54.86 | 9.22 | 5.20 | 74.00 | 7.60 | - | 15 | 7.50 | - |
| 2025-12-26 03:30 am | 6.6 | 54.86 | 9.32 | 5.30 | 74.80 | 7.70 | - | 17 | 7.50 | - |
| 2025-12-26 03:15 am | 6.6 | 54.86 | 9.27 | 5.20 | 74.40 | 7.60 | - | 16 | 7.50 | - |
| 2025-12-26 03:00 am | 6.2 | 55.04 | 9.20 | 5.20 | 74.10 | 7.60 | - | 16 | 7.50 | - |
| 2025-12-26 02:45 am | 5.9 | 55.04 | 9.12 | 5.10 | 73.90 | 7.60 | - | 17 | 7.50 | - |
| 2025-12-26 02:30 am | 5.6 | 55.04 | 9.12 | 5.10 | 74.00 | 7.60 | - | 18 | 7.50 | - |
| 2025-12-26 02:15 am | 5.6 | 55.04 | 9.13 | 5.10 | 73.90 | 7.60 | - | 18 | 7.50 | - |
| 2025-12-26 02:00 am | 5.2 | 54.68 | 9.31 | 5.20 | 70.50 | 7.30 | - | 16 | 7.40 | - |
| 2025-12-26 01:45 am | 5.2 | 54.32 | 9.45 | 5.30 | 63.70 | 6.60 | - | 14 | 7.30 | - |
| 2025-12-26 01:30 am | 5.2 | 54.50 | 9.41 | 5.30 | 61.60 | 6.40 | - | 14 | 7.30 | - |
| 2025-12-26 01:15 am | 5.2 | 54.50 | 9.43 | 5.30 | 62.10 | 6.40 | - | 14 | 7.30 | - |
| 2025-12-26 01:00 am | 5.2 | 54.50 | 9.47 | 5.30 | 62.90 | 6.50 | - | 15 | 7.30 | - |
| 2025-12-26 12:45 am | 5.2 | 54.50 | 9.52 | 5.40 | 64.00 | 6.60 | - | 15 | 7.30 | - |
| 2025-12-26 12:30 am | 5.2 | 54.50 | 9.53 | 5.40 | 64.50 | 6.70 | - | 15 | 7.30 | - |
| 2025-12-26 12:15 am | 5.6 | 54.68 | 9.58 | 5.40 | 65.20 | 6.70 | - | 16 | 7.30 | - |
| 2025-12-26 12:00 am | 5.6 | 54.68 | 9.63 | 5.40 | 66.00 | 6.80 | - | 15 | 7.40 | - |
| 2025-12-25 11:45 pm | 5.6 | 54.68 | 9.66 | 5.50 | 66.70 | 6.90 | - | 16 | 7.40 | - |
| 2025-12-25 11:30 pm | 5.9 | 54.68 | 9.64 | 5.40 | 67.50 | 6.90 | - | 16 | 7.40 | - |
| 2025-12-25 11:15 pm | 5.9 | 54.68 | 9.66 | 5.50 | 68.40 | 7.00 | - | 16 | 7.40 | - |
| 2025-12-25 11:00 pm | 6.2 | 54.50 | 9.67 | 5.50 | 69.50 | 7.20 | - | 15 | 7.40 | - |
| 2025-12-25 10:45 pm | 6.2 | 54.68 | 9.69 | 5.50 | 70.20 | 7.20 | - | 15 | 7.40 | - |
| 2025-12-25 10:30 pm | 6.2 | 54.68 | 9.71 | 5.50 | 70.80 | 7.30 | - | 15 | 7.40 | - |
| 2025-12-25 10:15 pm | 6.6 | 54.68 | 9.78 | 5.50 | 71.20 | 7.30 | - | 16 | 7.40 | - |
| 2025-12-25 10:00 pm | 6.6 | 54.86 | 9.85 | 5.60 | 71.80 | 7.40 | - | 16 | 7.40 | - |
| 2025-12-25 09:45 pm | 6.9 | 54.86 | 9.94 | 5.60 | 72.60 | 7.40 | - | 16 | 7.40 | - |
| 2025-12-25 09:30 pm | 6.9 | 54.86 | 10.02 | 5.70 | 73.40 | 7.50 | - | 16 | 7.40 | - |
| 2025-12-25 09:15 pm | 7.2 | 54.86 | 10.18 | 5.80 | 74.50 | 7.60 | - | 16 | 7.40 | - |
| 2025-12-25 09:00 pm | 7.2 | 54.86 | 10.33 | 5.90 | 75.60 | 7.70 | - | 16 | 7.50 | - |
Historical data for station FFFC1 are available at the NERRS website.
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