View the latest observations near Central Pacific Tropical Storm Fausto and East Pacific Hurricane Genevieve.
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): | 4.6 ft |
 Ocean Temperature (OTMP): | 69.80 °F |
| Conductivity (COND): | 6.79 mS/cm |
| Salinity (SAL): | 3.70 psu |
| Oxygen Saturation (O2PCT): | 72.3% |
| Oxygen Concentration (O2PPM): | 6.30 ppm |
| Turbidity (TURB): | 32 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-28 08:15 am | 4.9 | 69.80 | 6.75 | 3.70 | 73.60 | 6.40 | - | 31 | 7.50 | - |
| 2026-07-28 08:00 am | 5.2 | 69.80 | 6.70 | 3.70 | 74.70 | 6.50 | - | 28 | 7.50 | - |
| 2026-07-28 07:45 am | 5.2 | 69.62 | 6.69 | 3.70 | 75.50 | 6.60 | - | 26 | 7.50 | - |
| 2026-07-28 07:30 am | 5.6 | 69.62 | 6.64 | 3.60 | 76.40 | 6.70 | - | 23 | 7.60 | - |
| 2026-07-28 07:15 am | 5.6 | 69.44 | 6.60 | 3.60 | 76.70 | 6.70 | - | 23 | 7.60 | - |
| 2026-07-28 07:00 am | 5.9 | 69.44 | 6.56 | 3.60 | 77.10 | 6.80 | - | 22 | 7.60 | - |
| 2026-07-28 06:45 am | 5.9 | 69.26 | 6.48 | 3.60 | 77.40 | 6.80 | - | 20 | 7.60 | - |
| 2026-07-28 06:30 am | 6.2 | 69.08 | 6.43 | 3.50 | 77.90 | 6.90 | - | 19 | 7.60 | - |
| 2026-07-28 06:15 am | 6.2 | 69.08 | 6.39 | 3.50 | 78.40 | 6.90 | - | 18 | 7.60 | - |
| 2026-07-28 06:00 am | 6.6 | 68.90 | 6.29 | 3.40 | 78.80 | 7.00 | - | 18 | 7.60 | - |
| 2026-07-28 05:45 am | 6.9 | 68.90 | 6.04 | 3.30 | 79.30 | 7.00 | - | 17 | 7.60 | - |
| 2026-07-28 05:30 am | 6.9 | 69.08 | 6.06 | 3.30 | 79.20 | 7.00 | - | 19 | 7.60 | - |
| 2026-07-28 05:15 am | 7.2 | 69.44 | 5.88 | 3.20 | 79.50 | 7.00 | - | 19 | 7.60 | - |
| 2026-07-28 05:00 am | 7.2 | 69.44 | 5.57 | 3.00 | 80.50 | 7.10 | - | 19 | 7.60 | - |
| 2026-07-28 04:45 am | 7.5 | 69.80 | 5.35 | 2.90 | 80.80 | 7.10 | - | 18 | 7.60 | - |
| 2026-07-28 04:30 am | 7.9 | 69.98 | 4.82 | 2.60 | 81.90 | 7.20 | - | 18 | 7.60 | - |
| 2026-07-28 04:15 am | 7.9 | 70.16 | 4.37 | 2.30 | 82.80 | 7.30 | - | 17 | 7.60 | - |
| 2026-07-28 04:00 am | 8.2 | 70.34 | 4.20 | 2.20 | 83.60 | 7.30 | - | 20 | 7.60 | - |
| 2026-07-28 03:45 am | 8.5 | 70.70 | 3.53 | 1.90 | 84.60 | 7.40 | - | 20 | 7.60 | - |
| 2026-07-28 03:30 am | 8.5 | 70.70 | 2.97 | 1.60 | 84.60 | 7.40 | - | 29 | 7.60 | - |
| 2026-07-28 03:15 am | 8.9 | 70.70 | 2.72 | 1.40 | 84.30 | 7.40 | - | 26 | 7.60 | - |
| 2026-07-28 03:00 am | 8.9 | 71.06 | 2.94 | 1.50 | 85.40 | 7.50 | - | 30 | 7.60 | - |
| 2026-07-28 02:45 am | 8.9 | 71.06 | 3.19 | 1.70 | 84.70 | 7.40 | - | 31 | 7.60 | - |
| 2026-07-28 02:30 am | 8.9 | 70.88 | 3.49 | 1.80 | 83.70 | 7.30 | - | 30 | 7.60 | - |
| 2026-07-28 02:15 am | 8.9 | 70.88 | 2.88 | 1.50 | 85.50 | 7.50 | - | 36 | 7.60 | - |
| 2026-07-28 02:00 am | 8.9 | 71.06 | 2.71 | 1.40 | 86.00 | 7.50 | - | 41 | 7.60 | - |
| 2026-07-28 01:45 am | 8.9 | 71.06 | 2.77 | 1.40 | 85.70 | 7.50 | - | 44 | 7.60 | - |
| 2026-07-28 01:30 am | 8.9 | 71.24 | 3.24 | 1.70 | 85.60 | 7.50 | - | 33 | 7.60 | - |
| 2026-07-28 01:15 am | 8.5 | 71.24 | 3.85 | 2.00 | 84.90 | 7.40 | - | 29 | 7.60 | - |
| 2026-07-28 01:00 am | 8.5 | 71.42 | 3.05 | 1.60 | 85.80 | 7.40 | - | 40 | 7.60 | - |
| 2026-07-28 12:45 am | 8.5 | 71.60 | 3.24 | 1.70 | 85.70 | 7.40 | - | 39 | 7.60 | - |
| 2026-07-28 12:30 am | 8.5 | 71.78 | 3.38 | 1.80 | 85.30 | 7.40 | - | 37 | 7.60 | - |
| 2026-07-28 12:15 am | 8.2 | 71.96 | 3.61 | 1.90 | 85.70 | 7.40 | - | 29 | 7.60 | - |
| 2026-07-28 12:00 am | 8.2 | 71.96 | 3.82 | 2.00 | 85.30 | 7.30 | - | 34 | 7.60 | - |
| 2026-07-27 11:45 pm | 8.2 | 71.96 | 4.26 | 2.30 | 85.20 | 7.30 | - | 26 | 7.60 | - |
| 2026-07-27 11:30 pm | 7.9 | 71.78 | 4.81 | 2.60 | 85.10 | 7.30 | - | 31 | 7.60 | - |
| 2026-07-27 11:15 pm | 7.9 | 71.24 | 5.59 | 3.00 | 84.30 | 7.30 | - | 34 | 7.60 | - |
| 2026-07-27 11:00 pm | 7.5 | 70.70 | 6.36 | 3.50 | 83.50 | 7.20 | - | 29 | 7.60 | - |
| 2026-07-27 10:45 pm | 7.5 | 70.52 | 6.41 | 3.50 | 83.30 | 7.20 | - | 29 | 7.60 | - |
| 2026-07-27 10:30 pm | 7.2 | 70.52 | 6.46 | 3.50 | 83.10 | 7.20 | - | 26 | 7.60 | - |
| 2026-07-27 10:15 pm | 6.9 | 70.52 | 6.50 | 3.60 | 83.10 | 7.20 | - | 19 | 7.60 | - |
| 2026-07-27 10:00 pm | 6.9 | 70.70 | 6.51 | 3.60 | 83.50 | 7.20 | - | 20 | 7.60 | - |
| 2026-07-27 09:45 pm | 6.6 | 70.70 | 6.54 | 3.60 | 83.40 | 7.20 | - | 19 | 7.70 | - |
| 2026-07-27 09:30 pm | 6.6 | 70.70 | 6.52 | 3.60 | 84.40 | 7.30 | - | 20 | 7.70 | - |
| 2026-07-27 09:15 pm | 6.6 | 70.70 | 6.52 | 3.60 | 84.30 | 7.30 | - | 22 | 7.70 | - |
| 2026-07-27 09:00 pm | 6.2 | 70.88 | 6.53 | 3.60 | 84.40 | 7.30 | - | 25 | 7.70 | - |
| 2026-07-27 08:45 pm | 6.2 | 71.60 | 6.52 | 3.60 | 84.00 | 7.20 | - | 29 | 7.60 | - |
| 2026-07-27 08:30 pm | 6.2 | 72.32 | 6.55 | 3.60 | 83.80 | 7.10 | - | 29 | 7.60 | - |
| 2026-07-27 08:15 pm | 6.2 | 73.40 | 6.69 | 3.70 | 89.30 | 7.50 | - | 22 | 7.70 | - |
| 2026-07-27 08:00 pm | 6.2 | 73.40 | 6.68 | 3.70 | 89.00 | 7.50 | - | 22 | 7.70 | - |
| 2026-07-27 07:45 pm | 6.2 | 73.58 | 6.69 | 3.70 | 89.20 | 7.50 | - | 22 | 7.70 | - |
| 2026-07-27 07:30 pm | 6.2 | 73.76 | 6.70 | 3.70 | 89.20 | 7.50 | - | 21 | 7.70 | - |
| 2026-07-27 07:15 pm | 6.6 | 73.76 | 6.59 | 3.60 | 89.50 | 7.50 | - | 20 | 7.70 | - |
| 2026-07-27 07:00 pm | 6.6 | 73.76 | 6.58 | 3.60 | 89.40 | 7.50 | - | 19 | 7.70 | - |
| 2026-07-27 06:45 pm | 6.6 | 73.94 | 6.63 | 3.60 | 89.80 | 7.50 | - | 18 | 7.70 | - |
| 2026-07-27 06:30 pm | 6.9 | 73.94 | 6.36 | 3.50 | 89.60 | 7.50 | - | 18 | 7.70 | - |
| 2026-07-27 06:15 pm | 6.9 | 73.76 | 6.41 | 3.50 | 89.40 | 7.50 | - | 17 | 7.60 | - |
| 2026-07-27 06:00 pm | 7.2 | 73.40 | 6.22 | 3.40 | 87.90 | 7.40 | - | 19 | 7.60 | - |
| 2026-07-27 05:45 pm | 7.2 | 73.22 | 5.78 | 3.10 | 87.90 | 7.40 | - | 20 | 7.60 | - |
| 2026-07-27 05:30 pm | 7.5 | 73.04 | 5.35 | 2.90 | 87.90 | 7.40 | - | 21 | 7.60 | - |
| 2026-07-27 05:15 pm | 7.5 | 72.86 | 5.00 | 2.70 | 87.50 | 7.40 | - | 22 | 7.60 | - |
| 2026-07-27 05:00 pm | 7.5 | 72.86 | 5.33 | 2.90 | 86.20 | 7.30 | - | 23 | 7.60 | - |
| 2026-07-27 04:45 pm | 7.5 | 72.68 | 5.49 | 3.00 | 85.80 | 7.30 | - | 23 | 7.60 | - |
| 2026-07-27 04:30 pm | 7.5 | 72.50 | 5.39 | 2.90 | 85.40 | 7.30 | - | 23 | 7.60 | - |
| 2026-07-27 04:15 pm | 7.9 | 72.50 | 5.43 | 2.90 | 84.50 | 7.20 | - | 25 | 7.60 | - |
| 2026-07-27 04:00 pm | 7.5 | 72.50 | 5.57 | 3.00 | 84.10 | 7.20 | - | 28 | 7.60 | - |
| 2026-07-27 03:45 pm | 7.5 | 72.14 | 5.79 | 3.10 | 82.70 | 7.10 | - | 26 | 7.60 | - |
| 2026-07-27 03:30 pm | 7.5 | 71.96 | 5.89 | 3.20 | 82.10 | 7.00 | - | 28 | 7.50 | - |
| 2026-07-27 03:15 pm | 7.5 | 71.96 | 5.84 | 3.20 | 81.50 | 7.00 | - | 28 | 7.50 | - |
| 2026-07-27 03:00 pm | 7.5 | 71.96 | 5.93 | 3.20 | 81.90 | 7.00 | - | 34 | 7.50 | - |
| 2026-07-27 02:45 pm | 7.5 | 71.96 | 6.06 | 3.30 | 81.50 | 7.00 | - | 33 | 7.50 | - |
| 2026-07-27 02:30 pm | 7.2 | 71.96 | 6.15 | 3.40 | 80.80 | 6.90 | - | 27 | 7.50 | - |
| 2026-07-27 02:15 pm | 7.2 | 71.96 | 6.25 | 3.40 | 80.50 | 6.90 | - | 29 | 7.50 | - |
| 2026-07-27 02:00 pm | 7.2 | 71.96 | 6.34 | 3.50 | 80.70 | 6.90 | - | 26 | 7.50 | - |
| 2026-07-27 01:45 pm | 7.2 | 71.96 | 6.41 | 3.50 | 80.00 | 6.80 | - | 28 | 7.50 | - |
| 2026-07-27 01:30 pm | 6.9 | 71.96 | 6.47 | 3.50 | 79.90 | 6.80 | - | 28 | 7.50 | - |
| 2026-07-27 01:15 pm | 6.9 | 71.78 | 6.56 | 3.60 | 80.00 | 6.80 | - | 30 | 7.50 | - |
| 2026-07-27 01:00 pm | 6.6 | 71.42 | 6.82 | 3.70 | 80.90 | 6.90 | - | 32 | 7.60 | - |
| 2026-07-27 12:45 pm | 6.6 | 71.06 | 6.84 | 3.80 | 80.60 | 6.90 | - | 27 | 7.60 | - |
| 2026-07-27 12:30 pm | 6.2 | 70.70 | 6.79 | 3.70 | 80.10 | 6.90 | - | 22 | 7.60 | - |
| 2026-07-27 12:15 pm | 6.2 | 70.70 | 6.81 | 3.70 | 80.50 | 7.00 | - | 27 | 7.60 | - |
| 2026-07-27 12:00 pm | 5.9 | 70.70 | 6.55 | 3.60 | 84.80 | 7.30 | - | 29 | 7.60 | - |
| 2026-07-27 11:45 am | 5.6 | 70.52 | 6.65 | 3.70 | 86.20 | 7.50 | - | 36 | 7.70 | - |
| 2026-07-27 11:30 am | 5.2 | 70.34 | 6.67 | 3.70 | 84.80 | 7.40 | - | 42 | 7.60 | - |
| 2026-07-27 11:15 am | 4.6 | 69.98 | 6.71 | 3.70 | 79.50 | 6.90 | - | 30 | 7.60 | - |
| 2026-07-27 11:00 am | 4.3 | 69.80 | 6.74 | 3.70 | 78.50 | 6.90 | - | 43 | 7.60 | - |
| 2026-07-27 10:45 am | 3.9 | 69.80 | 6.76 | 3.70 | 77.90 | 6.80 | - | 56 | 7.60 | - |
| 2026-07-27 10:30 am | 3.9 | 69.98 | 6.96 | 3.80 | 74.40 | 6.50 | - | 73 | 7.50 | - |
| 2026-07-27 10:15 am | 3.6 | 70.52 | 7.23 | 4.00 | 71.30 | 6.20 | - | 36 | 7.50 | - |
| 2026-07-27 10:00 am | 3.6 | 70.34 | 7.21 | 4.00 | 71.20 | 6.20 | - | 38 | 7.50 | - |
| 2026-07-27 09:45 am | 3.6 | 70.34 | 7.17 | 4.00 | 70.60 | 6.10 | - | 33 | 7.50 | - |
| 2026-07-27 09:30 am | 3.6 | 70.16 | 7.15 | 3.90 | 70.20 | 6.10 | - | 33 | 7.50 | - |
| 2026-07-27 09:15 am | 3.9 | 70.16 | 7.14 | 3.90 | 69.50 | 6.00 | - | 32 | 7.50 | - |
| 2026-07-27 09:00 am | 3.9 | 69.98 | 7.07 | 3.90 | 69.40 | 6.00 | - | 33 | 7.50 | - |
Historical data for station FFFC1 are available at the NERRS website.
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