NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.
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): | 3.6 ft |
 Ocean Temperature (OTMP): | 69.08 °F |
| Conductivity (COND): | 2.38 mS/cm |
| Salinity (SAL): | 1.20 psu |
| Oxygen Concentration (O2PCT): | 75.6% |
| Oxygen Concentration (O2PPM): | 6.80 ppm |
| Turbidity (TURB): | 141 FTU |
| pH (PH): | 7.80 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mv |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-04-20 03:15 pm | 3.6 | 68.72 | 2.38 | 1.20 | 75.30 | 6.70 | - | 86 | 7.80 | - |
| 2025-04-20 03:00 pm | 3.6 | 68.36 | 2.37 | 1.20 | 74.90 | 6.70 | - | 83 | 7.80 | - |
| 2025-04-20 02:45 pm | 3.6 | 67.82 | 2.33 | 1.20 | 75.10 | 6.80 | - | 87 | 7.80 | - |
| 2025-04-20 02:30 pm | 3.9 | 67.46 | 2.30 | 1.20 | 75.70 | 6.90 | - | 81 | 7.80 | - |
| 2025-04-20 02:15 pm | 3.9 | 66.74 | 2.24 | 1.20 | 76.30 | 7.00 | - | 80 | 7.80 | - |
| 2025-04-20 02:00 pm | 3.9 | 66.38 | 2.21 | 1.10 | 76.60 | 7.10 | - | 157 | 7.80 | - |
| 2025-04-20 01:45 pm | 4.3 | 65.48 | 2.16 | 1.10 | 77.50 | 7.20 | - | 77 | 7.80 | - |
| 2025-04-20 01:30 pm | 4.6 | 64.94 | 2.10 | 1.10 | 79.60 | 7.40 | - | 73 | 7.80 | - |
| 2025-04-20 01:15 pm | 4.6 | 64.40 | 2.09 | 1.10 | 79.40 | 7.50 | - | 67 | 7.80 | - |
| 2025-04-20 01:00 pm | 4.9 | 63.68 | 2.06 | 1.10 | 79.70 | 7.60 | - | 65 | 7.80 | - |
| 2025-04-20 12:45 pm | 5.2 | 63.14 | 2.04 | 1.10 | 80.10 | 7.70 | - | 62 | 7.80 | - |
| 2025-04-20 12:30 pm | 5.2 | 62.24 | 2.03 | 1.00 | 79.70 | 7.70 | - | 61 | 7.90 | - |
| 2025-04-20 12:15 pm | 5.6 | 61.88 | 2.02 | 1.00 | 79.90 | 7.70 | - | 59 | 7.90 | - |
| 2025-04-20 12:00 pm | 5.6 | 61.34 | 2.01 | 1.00 | 79.60 | 7.80 | - | 59 | 7.90 | - |
| 2025-04-20 11:45 am | 5.9 | 61.34 | 2.00 | 1.00 | 79.90 | 7.80 | - | 53 | 7.90 | - |
| 2025-04-20 11:30 am | 6.2 | 61.16 | 2.00 | 1.00 | 79.90 | 7.80 | - | 57 | 7.90 | - |
| 2025-04-20 11:15 am | 6.2 | 61.16 | 1.99 | 1.00 | 79.80 | 7.80 | - | 54 | 7.90 | - |
| 2025-04-20 11:00 am | 6.6 | 61.16 | 1.98 | 1.00 | 79.60 | 7.80 | - | 54 | 7.90 | - |
| 2025-04-20 10:45 am | 6.6 | 61.34 | 1.97 | 1.00 | 79.60 | 7.80 | - | 54 | 7.80 | - |
| 2025-04-20 10:30 am | 6.9 | 61.52 | 1.90 | 1.00 | 80.30 | 7.80 | - | 55 | 7.80 | - |
| 2025-04-20 10:15 am | 6.9 | 61.70 | 1.84 | 0.90 | 81.00 | 7.90 | - | 52 | 7.80 | - |
| 2025-04-20 10:00 am | 7.2 | 61.88 | 1.77 | 0.90 | 81.10 | 7.90 | - | 51 | 7.80 | - |
| 2025-04-20 09:45 am | 7.2 | 62.06 | 1.73 | 0.90 | 81.00 | 7.80 | - | 50 | 7.80 | - |
| 2025-04-20 09:30 am | 7.5 | 62.24 | 1.70 | 0.90 | 81.10 | 7.80 | - | 47 | 7.80 | - |
| 2025-04-20 09:15 am | 7.5 | 62.42 | 1.67 | 0.90 | 80.90 | 7.80 | - | 47 | 7.80 | - |
| 2025-04-20 09:00 am | 7.9 | 62.42 | 1.64 | 0.80 | 80.90 | 7.80 | - | 45 | 7.80 | - |
| 2025-04-20 08:45 am | 7.9 | 62.42 | 1.57 | 0.80 | 81.00 | 7.80 | - | 44 | 7.80 | - |
| 2025-04-20 08:30 am | 8.2 | 62.24 | 1.51 | 0.80 | 80.20 | 7.80 | - | 41 | 7.70 | - |
| 2025-04-20 08:15 am | 8.2 | 62.24 | 1.43 | 0.70 | 80.30 | 7.80 | - | 45 | 7.70 | - |
| 2025-04-20 08:00 am | 8.2 | 62.24 | 1.39 | 0.70 | 80.50 | 7.80 | - | 41 | 7.70 | - |
| 2025-04-20 07:45 am | 8.2 | 62.24 | 1.38 | 0.70 | 80.70 | 7.80 | - | 43 | 7.70 | - |
| 2025-04-20 07:30 am | 8.2 | 62.42 | 1.36 | 0.70 | 80.60 | 7.80 | - | 43 | 7.70 | - |
| 2025-04-20 07:15 am | 8.2 | 62.42 | 1.33 | 0.70 | 81.00 | 7.80 | - | 40 | 7.70 | - |
| 2025-04-20 07:00 am | 8.2 | 62.42 | 1.35 | 0.70 | 80.70 | 7.80 | - | 39 | 7.70 | - |
| 2025-04-20 06:45 am | 8.2 | 62.42 | 1.35 | 0.70 | 80.50 | 7.80 | - | 39 | 7.70 | - |
| 2025-04-20 06:30 am | 8.2 | 62.42 | 1.35 | 0.70 | 80.80 | 7.80 | - | 37 | 7.70 | - |
| 2025-04-20 06:15 am | 8.2 | 62.60 | 1.37 | 0.70 | 80.70 | 7.80 | - | 38 | 7.70 | - |
| 2025-04-20 06:00 am | 8.2 | 62.60 | 1.40 | 0.70 | 80.60 | 7.80 | - | 37 | 7.70 | - |
| 2025-04-20 05:45 am | 8.2 | 62.78 | 1.45 | 0.70 | 80.50 | 7.70 | - | 41 | 7.70 | - |
| 2025-04-20 05:30 am | 7.9 | 62.78 | 1.49 | 0.80 | 80.20 | 7.70 | - | 40 | 7.70 | - |
| 2025-04-20 05:15 am | 7.9 | 62.96 | 1.53 | 0.80 | 80.10 | 7.70 | - | 38 | 7.70 | - |
| 2025-04-20 05:00 am | 7.9 | 63.14 | 1.61 | 0.80 | 79.80 | 7.60 | - | 44 | 7.80 | - |
| 2025-04-20 04:45 am | 7.5 | 63.32 | 1.67 | 0.90 | 80.00 | 7.60 | - | 44 | 7.80 | - |
| 2025-04-20 04:30 am | 7.5 | 63.14 | 1.67 | 0.90 | 80.10 | 7.70 | - | 45 | 7.80 | - |
| 2025-04-20 04:15 am | 7.5 | 63.14 | 1.67 | 0.90 | 80.30 | 7.70 | - | 42 | 7.80 | - |
| 2025-04-20 04:00 am | 7.2 | 63.14 | 1.68 | 0.90 | 80.70 | 7.70 | - | 43 | 7.80 | - |
| 2025-04-20 03:45 am | 7.2 | 62.96 | 1.68 | 0.90 | 81.40 | 7.80 | - | 41 | 7.80 | - |
| 2025-04-20 03:30 am | 7.2 | 62.78 | 1.71 | 0.90 | 81.90 | 7.90 | - | 41 | 7.80 | - |
| 2025-04-20 03:15 am | 6.9 | 62.96 | 1.83 | 0.90 | 80.10 | 7.70 | - | 41 | 7.80 | - |
| 2025-04-20 03:00 am | 6.9 | 62.78 | 1.80 | 0.90 | 81.20 | 7.80 | - | 46 | 7.80 | - |
| 2025-04-20 02:45 am | 6.9 | 62.78 | 1.73 | 0.90 | 82.30 | 7.90 | - | 42 | 7.80 | - |
| 2025-04-20 02:30 am | 6.9 | 62.96 | 1.82 | 0.90 | 81.60 | 7.80 | - | 44 | 7.80 | - |
| 2025-04-20 02:15 am | 6.9 | 63.32 | 1.90 | 1.00 | 80.60 | 7.70 | - | 46 | 7.80 | - |
| 2025-04-20 02:00 am | 6.9 | 63.32 | 1.92 | 1.00 | 80.80 | 7.70 | - | 47 | 7.80 | - |
| 2025-04-20 01:45 am | 6.9 | 63.32 | 2.00 | 1.00 | 80.40 | 7.70 | - | 50 | 7.80 | - |
| 2025-04-20 01:30 am | 6.9 | 63.50 | 2.00 | 1.00 | 80.30 | 7.60 | - | 51 | 7.80 | - |
| 2025-04-20 01:15 am | 6.9 | 63.68 | 2.01 | 1.00 | 80.50 | 7.60 | - | 51 | 7.80 | - |
| 2025-04-20 01:00 am | 6.9 | 63.86 | 2.01 | 1.00 | 80.70 | 7.70 | - | 49 | 7.80 | - |
| 2025-04-20 12:45 am | 6.9 | 64.04 | 2.00 | 1.00 | 80.60 | 7.60 | - | 50 | 7.80 | - |
| 2025-04-20 12:30 am | 6.9 | 64.22 | 1.98 | 1.00 | 80.40 | 7.60 | - | 50 | 7.80 | - |
| 2025-04-20 12:15 am | 6.9 | 64.40 | 1.99 | 1.00 | 80.70 | 7.60 | - | 50 | 7.80 | - |
| 2025-04-20 12:00 am | 7.2 | 64.58 | 1.95 | 1.00 | 80.80 | 7.60 | - | 52 | 7.80 | - |
| 2025-04-19 11:45 pm | 7.2 | 64.94 | 1.96 | 1.00 | 81.10 | 7.60 | - | 52 | 7.80 | - |
| 2025-04-19 11:30 pm | 7.2 | 64.94 | 1.91 | 1.00 | 81.30 | 7.60 | - | 50 | 7.80 | - |
| 2025-04-19 11:15 pm | 7.2 | 64.76 | 1.81 | 0.90 | 81.40 | 7.60 | - | 46 | 7.80 | - |
| 2025-04-19 11:00 pm | 7.5 | 64.94 | 1.78 | 0.90 | 81.00 | 7.60 | - | 46 | 7.80 | - |
| 2025-04-19 10:45 pm | 7.5 | 64.94 | 1.75 | 0.90 | 81.20 | 7.60 | - | 46 | 7.80 | - |
| 2025-04-19 10:30 pm | 7.5 | 64.94 | 1.74 | 0.90 | 81.30 | 7.60 | - | 42 | 7.80 | - |
| 2025-04-19 10:15 pm | 7.5 | 65.12 | 1.75 | 0.90 | 81.40 | 7.60 | - | 45 | 7.80 | - |
| 2025-04-19 10:00 pm | 7.5 | 65.12 | 1.73 | 0.90 | 81.50 | 7.60 | - | 47 | 7.80 | - |
| 2025-04-19 09:45 pm | 7.5 | 65.12 | 1.69 | 0.90 | 81.40 | 7.60 | - | 44 | 7.80 | - |
| 2025-04-19 09:30 pm | 7.5 | 65.12 | 1.69 | 0.90 | 81.90 | 7.70 | - | 42 | 7.80 | - |
| 2025-04-19 09:15 pm | 7.5 | 65.30 | 1.74 | 0.90 | 81.60 | 7.60 | - | 44 | 7.80 | - |
| 2025-04-19 09:00 pm | 7.5 | 65.48 | 1.77 | 0.90 | 81.40 | 7.60 | - | 46 | 7.80 | - |
| 2025-04-19 08:45 pm | 7.2 | 65.66 | 1.81 | 0.90 | 81.60 | 7.60 | - | 48 | 7.80 | - |
| 2025-04-19 08:30 pm | 7.2 | 65.84 | 1.86 | 1.00 | 81.80 | 7.60 | - | 47 | 7.80 | - |
| 2025-04-19 08:15 pm | 7.2 | 66.02 | 1.89 | 1.00 | 81.80 | 7.60 | - | 47 | 7.80 | - |
| 2025-04-19 08:00 pm | 7.2 | 66.20 | 1.95 | 1.00 | 81.70 | 7.50 | - | 52 | 7.80 | - |
| 2025-04-19 07:45 pm | 6.9 | 66.38 | 1.99 | 1.00 | 81.40 | 7.50 | - | 57 | 7.80 | - |
| 2025-04-19 07:30 pm | 6.9 | 66.92 | 2.05 | 1.10 | 81.40 | 7.50 | - | 58 | 7.80 | - |
| 2025-04-19 07:15 pm | 6.9 | 66.38 | 2.04 | 1.10 | 81.80 | 7.50 | - | 56 | 7.80 | - |
| 2025-04-19 07:00 pm | 6.6 | 65.12 | 2.00 | 1.00 | 82.30 | 7.70 | - | 50 | 7.80 | - |
| 2025-04-19 06:45 pm | 6.6 | 63.86 | 2.01 | 1.00 | 80.90 | 7.70 | - | 68 | 7.80 | - |
| 2025-04-19 06:30 pm | 6.2 | 63.14 | 2.01 | 1.00 | 79.60 | 7.60 | - | 48 | 7.80 | - |
| 2025-04-19 06:15 pm | 6.2 | 63.14 | 2.00 | 1.00 | 79.90 | 7.60 | - | 51 | 7.80 | - |
| 2025-04-19 06:00 pm | 5.9 | 62.96 | 1.99 | 1.00 | 80.50 | 7.70 | - | 49 | 7.80 | - |
| 2025-04-19 05:45 pm | 5.9 | 62.96 | 2.00 | 1.00 | 80.10 | 7.70 | - | 53 | 7.80 | - |
| 2025-04-19 05:30 pm | 5.6 | 62.78 | 1.98 | 1.00 | 80.60 | 7.70 | - | 53 | 7.80 | - |
| 2025-04-19 05:15 pm | 5.2 | 62.78 | 1.99 | 1.00 | 80.40 | 7.70 | - | 53 | 7.80 | - |
| 2025-04-19 05:00 pm | 4.9 | 62.96 | 2.00 | 1.00 | 80.30 | 7.70 | - | 56 | 7.80 | - |
| 2025-04-19 04:45 pm | 4.9 | 62.96 | 2.01 | 1.00 | 79.70 | 7.60 | - | 59 | 7.80 | - |
| 2025-04-19 04:30 pm | 4.6 | 62.96 | 2.01 | 1.00 | 79.50 | 7.60 | - | 61 | 7.80 | - |
| 2025-04-19 04:15 pm | 4.3 | 63.14 | 2.02 | 1.00 | 79.70 | 7.60 | - | 56 | 7.80 | - |
| 2025-04-19 04:00 pm | 4.3 | 63.68 | 2.01 | 1.00 | 80.80 | 7.70 | - | 55 | 7.80 | - |
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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