View the latest observations near Central Pacific Tropical Storm Lala and East Pacific Tropical Storm Iselle.
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): | 72.86 °F |
| Conductivity (COND): | 5.94 mS/cm |
| Salinity (SAL): | 3.20 psu |
| Oxygen Saturation (O2PCT): | 89.4% |
| Oxygen Concentration (O2PPM): | 7.60 ppm |
| Turbidity (TURB): | 21 FTU |
| pH (PH): | 7.60 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-25 06:15 pm | 6.6 | 73.04 | 5.97 | 3.30 | 90.50 | 7.60 | - | 20 | 7.60 | - |
| 2026-08-25 06:00 pm | 6.9 | 73.22 | 5.90 | 3.20 | 90.70 | 7.70 | - | 18 | 7.60 | - |
| 2026-08-25 05:45 pm | 6.9 | 72.68 | 5.88 | 3.20 | 86.50 | 7.40 | - | 19 | 7.60 | - |
| 2026-08-25 05:30 pm | 7.2 | 72.68 | 5.80 | 3.20 | 86.40 | 7.30 | - | 19 | 7.60 | - |
| 2026-08-25 05:15 pm | 7.2 | 72.68 | 5.47 | 3.00 | 86.60 | 7.40 | - | 20 | 7.60 | - |
| 2026-08-25 05:00 pm | 7.5 | 72.14 | 5.49 | 3.00 | 84.10 | 7.20 | - | 20 | 7.50 | - |
| 2026-08-25 04:45 pm | 7.5 | 71.96 | 5.50 | 3.00 | 83.00 | 7.10 | - | 22 | 7.50 | - |
| 2026-08-25 04:30 pm | 7.9 | 71.96 | 5.41 | 2.90 | 83.20 | 7.10 | - | 24 | 7.50 | - |
| 2026-08-25 04:15 pm | 7.9 | 71.42 | 5.62 | 3.10 | 81.70 | 7.00 | - | 22 | 7.50 | - |
| 2026-08-25 04:00 pm | 7.9 | 71.06 | 5.61 | 3.00 | 79.80 | 6.90 | - | 23 | 7.50 | - |
| 2026-08-25 03:45 pm | 7.9 | 71.06 | 5.58 | 3.00 | 80.00 | 6.90 | - | 25 | 7.50 | - |
| 2026-08-25 03:30 pm | 7.9 | 70.88 | 5.58 | 3.00 | 79.80 | 6.90 | - | 22 | 7.50 | - |
| 2026-08-25 03:15 pm | 7.9 | 70.88 | 5.36 | 2.90 | 80.30 | 7.00 | - | 26 | 7.50 | - |
| 2026-08-25 03:00 pm | 7.9 | 70.70 | 5.16 | 2.80 | 80.60 | 7.00 | - | 27 | 7.50 | - |
| 2026-08-25 02:45 pm | 7.9 | 70.70 | 5.12 | 2.80 | 80.60 | 7.00 | - | 37 | 7.50 | - |
| 2026-08-25 02:30 pm | 7.9 | 70.88 | 5.04 | 2.70 | 80.90 | 7.00 | - | 35 | 7.50 | - |
| 2026-08-25 02:15 pm | 7.9 | 70.70 | 5.21 | 2.80 | 80.30 | 7.00 | - | 36 | 7.50 | - |
| 2026-08-25 02:00 pm | 7.9 | 70.52 | 5.33 | 2.90 | 79.80 | 6.90 | - | 34 | 7.50 | - |
| 2026-08-25 01:45 pm | 7.5 | 70.52 | 5.41 | 2.90 | 79.50 | 6.90 | - | 31 | 7.50 | - |
| 2026-08-25 01:30 pm | 7.5 | 70.52 | 5.48 | 3.00 | 79.10 | 6.90 | - | 31 | 7.50 | - |
| 2026-08-25 01:15 pm | 7.5 | 70.52 | 5.55 | 3.00 | 79.00 | 6.90 | - | 32 | 7.50 | - |
| 2026-08-25 01:00 pm | 7.2 | 70.52 | 5.67 | 3.10 | 78.40 | 6.80 | - | 27 | 7.50 | - |
| 2026-08-25 12:45 pm | 7.2 | 70.52 | 5.75 | 3.10 | 78.60 | 6.80 | - | 29 | 7.50 | - |
| 2026-08-25 12:30 pm | 7.2 | 70.34 | 5.84 | 3.20 | 78.20 | 6.80 | - | 27 | 7.50 | - |
| 2026-08-25 12:15 pm | 6.9 | 69.98 | 6.04 | 3.30 | 78.90 | 6.90 | - | 25 | 7.50 | - |
| 2026-08-25 12:00 pm | 6.6 | 69.80 | 6.04 | 3.30 | 78.80 | 6.90 | - | 21 | 7.50 | - |
| 2026-08-25 11:45 am | 6.6 | 69.80 | 6.03 | 3.30 | 78.90 | 6.90 | - | 20 | 7.60 | - |
| 2026-08-25 11:30 am | 6.2 | 69.80 | 6.01 | 3.30 | 79.90 | 7.00 | - | 21 | 7.60 | - |
| 2026-08-25 11:15 am | 5.9 | 69.62 | 5.93 | 3.20 | 81.30 | 7.10 | - | 34 | 7.60 | - |
| 2026-08-25 11:00 am | 5.6 | 69.44 | 5.95 | 3.20 | 80.70 | 7.10 | - | 36 | 7.60 | - |
| 2026-08-25 10:45 am | 5.2 | 69.26 | 6.00 | 3.30 | 79.00 | 6.90 | - | 30 | 7.60 | - |
| 2026-08-25 10:30 am | 4.9 | 69.26 | 6.03 | 3.30 | 78.00 | 6.90 | - | 24 | 7.60 | - |
| 2026-08-25 10:15 am | 4.6 | 69.08 | 6.03 | 3.30 | 77.40 | 6.80 | - | 24 | 7.50 | - |
| 2026-08-25 10:00 am | 4.3 | 69.08 | 6.05 | 3.30 | 77.10 | 6.80 | - | 27 | 7.50 | - |
| 2026-08-25 09:45 am | 4.3 | 68.90 | 6.23 | 3.40 | 74.00 | 6.50 | - | 29 | 7.50 | - |
| 2026-08-25 09:30 am | 4.3 | 68.54 | 6.46 | 3.50 | 68.80 | 6.10 | - | 31 | 7.40 | - |
| 2026-08-25 09:15 am | 4.3 | 68.54 | 6.45 | 3.50 | 69.20 | 6.10 | - | 29 | 7.40 | - |
| 2026-08-25 09:00 am | 4.3 | 68.36 | 6.42 | 3.50 | 69.30 | 6.10 | - | 31 | 7.40 | - |
| 2026-08-25 08:45 am | 4.3 | 68.54 | 6.41 | 3.50 | 68.80 | 6.10 | - | 29 | 7.40 | - |
| 2026-08-25 08:30 am | 4.6 | 68.54 | 6.37 | 3.50 | 69.20 | 6.10 | - | 31 | 7.40 | - |
| 2026-08-25 08:15 am | 4.6 | 68.72 | 6.32 | 3.50 | 70.10 | 6.20 | - | 29 | 7.50 | - |
| 2026-08-25 08:00 am | 4.6 | 68.90 | 6.27 | 3.40 | 71.00 | 6.30 | - | 30 | 7.50 | - |
| 2026-08-25 07:45 am | 4.9 | 68.90 | 6.21 | 3.40 | 71.70 | 6.30 | - | 30 | 7.50 | - |
| 2026-08-25 07:30 am | 5.2 | 69.08 | 6.18 | 3.40 | 73.20 | 6.50 | - | 27 | 7.50 | - |
| 2026-08-25 07:15 am | 5.2 | 69.26 | 6.13 | 3.30 | 74.30 | 6.50 | - | 27 | 7.50 | - |
| 2026-08-25 07:00 am | 5.6 | 69.26 | 6.08 | 3.30 | 74.90 | 6.60 | - | 26 | 7.50 | - |
| 2026-08-25 06:45 am | 5.6 | 69.26 | 6.05 | 3.30 | 75.70 | 6.70 | - | 23 | 7.50 | - |
| 2026-08-25 06:30 am | 5.9 | 69.26 | 6.03 | 3.30 | 76.30 | 6.70 | - | 20 | 7.50 | - |
| 2026-08-25 06:15 am | 5.9 | 69.26 | 6.00 | 3.30 | 76.70 | 6.70 | - | 20 | 7.50 | - |
| 2026-08-25 06:00 am | 6.2 | 69.26 | 5.97 | 3.30 | 77.10 | 6.80 | - | 19 | 7.50 | - |
| 2026-08-25 05:45 am | 6.2 | 69.26 | 5.93 | 3.20 | 77.20 | 6.80 | - | 19 | 7.50 | - |
| 2026-08-25 05:30 am | 6.6 | 69.08 | 5.87 | 3.20 | 77.40 | 6.80 | - | 17 | 7.50 | - |
| 2026-08-25 05:15 am | 6.6 | 68.90 | 5.80 | 3.20 | 77.40 | 6.80 | - | 18 | 7.50 | - |
| 2026-08-25 05:00 am | 6.9 | 68.90 | 5.75 | 3.10 | 78.00 | 6.90 | - | 18 | 7.50 | - |
| 2026-08-25 04:45 am | 6.9 | 69.08 | 5.62 | 3.10 | 78.20 | 6.90 | - | 17 | 7.50 | - |
| 2026-08-25 04:30 am | 7.2 | 69.08 | 5.39 | 2.90 | 78.30 | 6.90 | - | 18 | 7.50 | - |
| 2026-08-25 04:15 am | 7.2 | 69.44 | 5.45 | 3.00 | 78.20 | 6.90 | - | 17 | 7.50 | - |
| 2026-08-25 04:00 am | 7.5 | 69.44 | 5.22 | 2.80 | 78.50 | 6.90 | - | 19 | 7.50 | - |
| 2026-08-25 03:45 am | 7.9 | 69.80 | 4.89 | 2.60 | 79.50 | 7.00 | - | 19 | 7.50 | - |
| 2026-08-25 03:30 am | 7.9 | 69.98 | 4.45 | 2.40 | 80.50 | 7.10 | - | 18 | 7.50 | - |
| 2026-08-25 03:15 am | 8.2 | 70.16 | 4.14 | 2.20 | 81.10 | 7.10 | - | 18 | 7.50 | - |
| 2026-08-25 03:00 am | 8.2 | 70.34 | 3.89 | 2.10 | 81.10 | 7.10 | - | 19 | 7.50 | - |
| 2026-08-25 02:45 am | 8.5 | 70.70 | 3.21 | 1.70 | 82.80 | 7.20 | - | 20 | 7.50 | - |
| 2026-08-25 02:30 am | 8.9 | 70.70 | 3.98 | 2.10 | 80.60 | 7.00 | - | 23 | 7.50 | - |
| 2026-08-25 02:15 am | 8.9 | 70.88 | 2.58 | 1.30 | 82.40 | 7.20 | - | 27 | 7.50 | - |
| 2026-08-25 02:00 am | 8.9 | 70.88 | 2.72 | 1.40 | 83.60 | 7.30 | - | 28 | 7.60 | - |
| 2026-08-25 01:45 am | 8.9 | 70.88 | 3.10 | 1.60 | 82.80 | 7.20 | - | 23 | 7.60 | - |
| 2026-08-25 01:30 am | 8.9 | 70.88 | 3.59 | 1.90 | 81.80 | 7.10 | - | 26 | 7.60 | - |
| 2026-08-25 01:15 am | 8.9 | 70.88 | 3.08 | 1.60 | 83.90 | 7.30 | - | 24 | 7.50 | - |
| 2026-08-25 01:00 am | 8.9 | 70.88 | 2.93 | 1.50 | 83.40 | 7.30 | - | 31 | 7.60 | - |
| 2026-08-25 12:45 am | 8.9 | 71.24 | 2.19 | 1.10 | 85.00 | 7.40 | - | 40 | 7.60 | - |
| 2026-08-25 12:30 am | 8.9 | 71.24 | 2.34 | 1.20 | 84.80 | 7.40 | - | 37 | 7.60 | - |
| 2026-08-25 12:15 am | 8.9 | 71.42 | 2.67 | 1.40 | 84.40 | 7.30 | - | 35 | 7.60 | - |
| 2026-08-25 12:00 am | 8.5 | 71.42 | 2.76 | 1.40 | 84.20 | 7.30 | - | 40 | 7.60 | - |
| 2026-08-24 11:45 pm | 8.5 | 71.60 | 2.90 | 1.50 | 84.20 | 7.30 | - | 39 | 7.60 | - |
| 2026-08-24 11:30 pm | 8.5 | 71.60 | 3.21 | 1.70 | 84.30 | 7.30 | - | 39 | 7.60 | - |
| 2026-08-24 11:15 pm | 8.5 | 71.60 | 3.41 | 1.80 | 84.30 | 7.30 | - | 37 | 7.60 | - |
| 2026-08-24 11:00 pm | 8.2 | 71.60 | 3.92 | 2.10 | 84.30 | 7.30 | - | 31 | 7.60 | - |
| 2026-08-24 10:45 pm | 8.2 | 71.24 | 4.72 | 2.50 | 83.60 | 7.20 | - | 30 | 7.60 | - |
| 2026-08-24 10:30 pm | 8.2 | 70.70 | 5.41 | 2.90 | 82.50 | 7.20 | - | 34 | 7.60 | - |
| 2026-08-24 10:15 pm | 7.9 | 70.52 | 5.82 | 3.20 | 81.50 | 7.10 | - | 38 | 7.60 | - |
| 2026-08-24 10:00 pm | 7.9 | 70.34 | 5.90 | 3.20 | 81.20 | 7.10 | - | 31 | 7.60 | - |
| 2026-08-24 09:45 pm | 7.5 | 70.34 | 5.91 | 3.20 | 80.60 | 7.00 | - | 28 | 7.60 | - |
| 2026-08-24 09:30 pm | 7.2 | 70.52 | 5.92 | 3.20 | 81.80 | 7.10 | - | 29 | 7.60 | - |
| 2026-08-24 09:15 pm | 7.2 | 70.52 | 5.92 | 3.20 | 82.10 | 7.10 | - | 19 | 7.60 | - |
| 2026-08-24 09:00 pm | 6.9 | 70.70 | 5.92 | 3.20 | 82.20 | 7.10 | - | 20 | 7.60 | - |
| 2026-08-24 08:45 pm | 6.9 | 70.70 | 5.92 | 3.20 | 82.20 | 7.10 | - | 21 | 7.60 | - |
| 2026-08-24 08:30 pm | 6.6 | 70.70 | 5.91 | 3.20 | 82.30 | 7.10 | - | 22 | 7.60 | - |
| 2026-08-24 08:15 pm | 6.6 | 70.70 | 5.91 | 3.20 | 82.40 | 7.10 | - | 24 | 7.60 | - |
| 2026-08-24 08:00 pm | 6.6 | 70.88 | 5.90 | 3.20 | 82.40 | 7.10 | - | 23 | 7.60 | - |
| 2026-08-24 07:45 pm | 6.2 | 71.24 | 5.88 | 3.20 | 83.10 | 7.20 | - | 21 | 7.60 | - |
| 2026-08-24 07:30 pm | 6.2 | 71.42 | 5.88 | 3.20 | 84.00 | 7.20 | - | 22 | 7.60 | - |
| 2026-08-24 07:15 pm | 6.2 | 72.68 | 5.96 | 3.20 | 86.70 | 7.40 | - | 20 | 7.60 | - |
| 2026-08-24 07:00 pm | 6.2 | 73.22 | 6.02 | 3.30 | 88.50 | 7.50 | - | 19 | 7.60 | - |
Historical data for station FFFC1 are available at the NERRS website.
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