Station RYEC1 - Second Mallard, San Francisco Bay Reserve, CA
Owned and maintained by National Estuarine Research Reserve System
NERRS Water Quality Station
38.184 N 122.014 W (38°11'3" N 122°0'49" 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): | 8.5 ft |
 Ocean Temperature (OTMP): | 71.24 °F |
| Conductivity (COND): | 8.21 mS/cm |
| Salinity (SAL): | 4.60 psu |
| Oxygen Saturation (O2PCT): | 78.5% |
| Oxygen Concentration (O2PPM): | 6.70 ppm |
| Turbidity (TURB): | 22 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-03 07:15 pm | 8.5 | 71.24 | 8.15 | 4.50 | 78.60 | 6.70 | - | 22 | 7.50 | - |
| 2026-07-03 07:00 pm | 8.5 | 71.24 | 7.74 | 4.30 | 78.80 | 6.80 | - | 27 | 7.50 | - |
| 2026-07-03 06:45 pm | 8.5 | 71.06 | 7.57 | 4.20 | 79.10 | 6.80 | - | 26 | 7.50 | - |
| 2026-07-03 06:30 pm | 8.5 | 71.06 | 7.09 | 3.90 | 79.40 | 6.80 | - | 25 | 7.50 | - |
| 2026-07-03 06:15 pm | 8.5 | 70.70 | 6.09 | 3.30 | 80.00 | 6.90 | - | 29 | 7.60 | - |
| 2026-07-03 06:00 pm | 8.5 | 70.88 | 5.25 | 2.80 | 81.90 | 7.10 | - | 30 | 7.60 | - |
| 2026-07-03 05:45 pm | 8.5 | 70.88 | 4.47 | 2.40 | 82.70 | 7.20 | - | 40 | 7.60 | - |
| 2026-07-03 05:30 pm | 8.2 | 70.70 | 4.82 | 2.60 | 81.50 | 7.10 | - | 38 | 7.60 | - |
| 2026-07-03 05:15 pm | 8.2 | 70.52 | 5.14 | 2.80 | 80.80 | 7.00 | - | 39 | 7.60 | - |
| 2026-07-03 05:00 pm | 8.2 | 70.52 | 5.82 | 3.20 | 80.70 | 7.00 | - | 36 | 7.60 | - |
| 2026-07-03 04:45 pm | 7.9 | 70.88 | 6.31 | 3.50 | 81.10 | 7.00 | - | 33 | 7.60 | - |
| 2026-07-03 04:30 pm | 7.9 | 70.88 | 6.99 | 3.90 | 80.90 | 7.00 | - | 38 | 7.60 | - |
| 2026-07-03 04:15 pm | 7.9 | 71.06 | 7.93 | 4.40 | 80.00 | 6.90 | - | 48 | 7.50 | - |
| 2026-07-03 04:00 pm | 7.5 | 70.70 | 8.46 | 4.70 | 79.10 | 6.80 | - | 64 | 7.50 | - |
| 2026-07-03 03:45 pm | 7.2 | 70.52 | 8.60 | 4.80 | 79.00 | 6.80 | - | 68 | 7.50 | - |
| 2026-07-03 03:30 pm | 6.9 | 70.34 | 8.69 | 4.90 | 79.10 | 6.80 | - | 53 | 7.50 | - |
| 2026-07-03 03:15 pm | 6.9 | 70.52 | 8.77 | 4.90 | 79.30 | 6.80 | - | 41 | 7.50 | - |
| 2026-07-03 03:00 pm | 6.2 | 70.16 | 8.83 | 4.90 | 78.90 | 6.80 | - | 37 | 7.50 | - |
| 2026-07-03 02:45 pm | 5.9 | 69.98 | 8.91 | 5.00 | 78.40 | 6.80 | - | 32 | 7.50 | - |
| 2026-07-03 02:30 pm | 5.6 | 69.98 | 8.96 | 5.00 | 78.80 | 6.80 | - | 27 | 7.50 | - |
| 2026-07-03 02:15 pm | 5.2 | 70.34 | 8.99 | 5.00 | 79.80 | 6.90 | - | 24 | 7.50 | - |
| 2026-07-03 02:00 pm | 4.9 | 71.24 | 9.10 | 5.10 | 82.80 | 7.10 | - | 22 | 7.50 | - |
| 2026-07-03 01:45 pm | 4.6 | 71.06 | 9.07 | 5.10 | 82.30 | 7.00 | - | 20 | 7.50 | - |
| 2026-07-03 01:30 pm | 4.6 | 70.70 | 9.01 | 5.10 | 80.40 | 6.90 | - | 20 | 7.50 | - |
| 2026-07-03 01:15 pm | 4.3 | 68.54 | 8.46 | 4.70 | 63.40 | 5.60 | - | 21 | 7.30 | - |
| 2026-07-03 01:00 pm | 4.3 | 68.54 | 8.47 | 4.70 | 63.20 | 5.60 | - | 16 | 7.30 | - |
| 2026-07-03 12:45 pm | 4.3 | 68.54 | 8.46 | 4.70 | 64.10 | 5.60 | - | 21 | 7.30 | - |
| 2026-07-03 12:30 pm | 4.3 | 68.54 | 8.40 | 4.70 | 64.70 | 5.70 | - | 20 | 7.30 | - |
| 2026-07-03 12:15 pm | 4.3 | 68.36 | 8.33 | 4.60 | 64.80 | 5.70 | - | 22 | 7.30 | - |
| 2026-07-03 12:00 pm | 4.6 | 68.36 | 8.21 | 4.60 | 64.40 | 5.70 | - | 23 | 7.30 | - |
| 2026-07-03 11:45 am | 4.6 | 68.18 | 8.09 | 4.50 | 66.10 | 5.80 | - | 63 | 7.30 | - |
| 2026-07-03 11:30 am | 4.9 | 68.36 | 7.95 | 4.40 | 66.90 | 5.90 | - | 21 | 7.30 | - |
| 2026-07-03 11:15 am | 4.9 | 68.18 | 7.86 | 4.40 | 67.90 | 6.00 | - | 22 | 7.30 | - |
| 2026-07-03 11:00 am | 5.2 | 68.18 | 7.75 | 4.30 | 67.80 | 6.00 | - | 20 | 7.40 | - |
| 2026-07-03 10:45 am | 5.2 | 68.18 | 7.66 | 4.30 | 68.30 | 6.10 | - | 20 | 7.40 | - |
| 2026-07-03 10:30 am | 5.2 | 68.00 | 7.55 | 4.20 | 67.90 | 6.00 | - | 19 | 7.40 | - |
| 2026-07-03 10:15 am | 5.6 | 68.00 | 7.44 | 4.10 | 68.90 | 6.10 | - | 20 | 7.40 | - |
| 2026-07-03 10:00 am | 5.9 | 67.82 | 7.34 | 4.10 | 69.30 | 6.20 | - | 19 | 7.40 | - |
| 2026-07-03 09:45 am | 5.9 | 67.82 | 7.23 | 4.00 | 69.90 | 6.20 | - | 19 | 7.40 | - |
| 2026-07-03 09:30 am | 6.2 | 67.82 | 7.13 | 3.90 | 70.10 | 6.20 | - | 19 | 7.40 | - |
| 2026-07-03 09:15 am | 6.2 | 67.82 | 7.03 | 3.90 | 70.10 | 6.20 | - | 21 | 7.40 | - |
| 2026-07-03 09:00 am | 6.6 | 67.82 | 6.92 | 3.80 | 70.30 | 6.30 | - | 22 | 7.40 | - |
| 2026-07-03 08:45 am | 6.6 | 67.82 | 6.82 | 3.80 | 69.80 | 6.20 | - | 24 | 7.40 | - |
| 2026-07-03 08:30 am | 6.9 | 67.82 | 6.72 | 3.70 | 71.10 | 6.30 | - | 26 | 7.40 | - |
| 2026-07-03 08:15 am | 7.2 | 67.82 | 6.60 | 3.60 | 72.30 | 6.40 | - | 29 | 7.50 | - |
| 2026-07-03 08:00 am | 7.2 | 68.00 | 6.49 | 3.60 | 72.40 | 6.50 | - | 31 | 7.50 | - |
| 2026-07-03 07:45 am | 7.5 | 68.00 | 6.36 | 3.50 | 73.70 | 6.60 | - | 39 | 7.50 | - |
| 2026-07-03 07:30 am | 7.9 | 68.18 | 6.21 | 3.40 | 74.50 | 6.60 | - | 49 | 7.50 | - |
| 2026-07-03 07:15 am | 7.9 | 68.18 | 6.04 | 3.30 | 75.90 | 6.80 | - | 59 | 7.50 | - |
| 2026-07-03 07:00 am | 8.2 | 68.18 | 5.82 | 3.20 | 77.30 | 6.90 | - | 80 | 7.50 | - |
| 2026-07-03 06:45 am | 8.5 | 68.36 | 5.59 | 3.00 | 78.80 | 7.00 | - | 96 | 7.60 | - |
| 2026-07-03 06:30 am | 8.9 | 68.72 | 5.79 | 3.20 | 79.30 | 7.00 | - | 86 | 7.60 | - |
| 2026-07-03 06:15 am | 9.2 | 68.90 | 6.14 | 3.40 | 79.60 | 7.00 | - | 76 | 7.60 | - |
| 2026-07-03 06:00 am | 9.2 | 69.26 | 6.54 | 3.60 | 80.10 | 7.00 | - | 39 | 7.60 | - |
| 2026-07-03 05:45 am | 9.5 | 69.26 | 6.74 | 3.70 | 79.70 | 7.00 | - | 35 | 7.60 | - |
| 2026-07-03 05:30 am | 9.5 | 69.26 | 6.70 | 3.70 | 80.30 | 7.00 | - | 42 | 7.60 | - |
| 2026-07-03 05:15 am | 9.5 | 69.26 | 6.58 | 3.60 | 80.30 | 7.10 | - | 54 | 7.60 | - |
| 2026-07-03 05:00 am | 9.5 | 69.26 | 6.41 | 3.50 | 80.10 | 7.00 | - | 62 | 7.60 | - |
| 2026-07-03 04:45 am | 9.5 | 69.44 | 6.26 | 3.40 | 79.90 | 7.00 | - | 75 | 7.60 | - |
| 2026-07-03 04:30 am | 9.5 | 69.44 | 6.06 | 3.30 | 79.60 | 7.00 | - | 82 | 7.60 | - |
| 2026-07-03 04:15 am | 9.5 | 69.26 | 5.86 | 3.20 | 79.70 | 7.00 | - | 92 | 7.60 | - |
| 2026-07-03 04:00 am | 9.5 | 69.08 | 5.62 | 3.10 | 79.90 | 7.10 | - | 84 | 7.60 | - |
| 2026-07-03 03:45 am | 9.5 | 69.08 | 5.44 | 3.00 | 79.80 | 7.10 | - | 78 | 7.60 | - |
| 2026-07-03 03:30 am | 9.2 | 69.08 | 5.39 | 2.90 | 79.40 | 7.00 | - | 66 | 7.60 | - |
| 2026-07-03 03:15 am | 9.2 | 68.90 | 5.57 | 3.00 | 79.10 | 7.00 | - | 48 | 7.60 | - |
| 2026-07-03 03:00 am | 9.2 | 68.90 | 5.66 | 3.10 | 79.30 | 7.00 | - | 71 | 7.60 | - |
| 2026-07-03 02:45 am | 9.2 | 69.08 | 5.74 | 3.10 | 79.50 | 7.00 | - | 47 | 7.60 | - |
| 2026-07-03 02:30 am | 8.9 | 69.26 | 6.04 | 3.30 | 79.40 | 7.00 | - | 48 | 7.60 | - |
| 2026-07-03 02:15 am | 8.9 | 69.44 | 6.06 | 3.30 | 79.40 | 7.00 | - | 60 | 7.60 | - |
| 2026-07-03 02:00 am | 8.5 | 69.62 | 6.05 | 3.30 | 79.30 | 7.00 | - | 43 | 7.60 | - |
| 2026-07-03 01:45 am | 8.2 | 69.80 | 6.25 | 3.40 | 79.70 | 7.00 | - | 46 | 7.60 | - |
| 2026-07-03 01:30 am | 8.2 | 69.62 | 6.13 | 3.40 | 79.60 | 7.00 | - | 46 | 7.60 | - |
| 2026-07-03 01:15 am | 7.9 | 69.98 | 6.38 | 3.50 | 79.30 | 6.90 | - | 21 | 7.60 | - |
| 2026-07-03 01:00 am | 7.9 | 70.16 | 6.76 | 3.70 | 79.80 | 6.90 | - | 20 | 7.60 | - |
| 2026-07-03 12:45 am | 7.5 | 70.16 | 7.27 | 4.00 | 81.00 | 7.00 | - | 17 | 7.60 | - |
| 2026-07-03 12:30 am | 7.2 | 69.80 | 6.95 | 3.80 | 79.30 | 6.90 | - | 19 | 7.60 | - |
| 2026-07-03 12:15 am | 7.2 | 69.98 | 7.02 | 3.90 | 79.00 | 6.90 | - | 19 | 7.60 | - |
| 2026-07-03 12:00 am | 6.9 | 70.34 | 7.22 | 4.00 | 78.30 | 6.80 | - | 20 | 7.60 | - |
| 2026-07-02 11:45 pm | 6.9 | 70.88 | 8.31 | 4.60 | 76.90 | 6.60 | - | 17 | 7.50 | - |
| 2026-07-02 11:30 pm | 6.9 | 71.06 | 8.55 | 4.80 | 74.50 | 6.40 | - | 17 | 7.50 | - |
| 2026-07-02 11:15 pm | 6.6 | 71.06 | 8.54 | 4.80 | 76.60 | 6.60 | - | 18 | 7.50 | - |
| 2026-07-02 11:00 pm | 6.6 | 70.88 | 8.45 | 4.70 | 77.50 | 6.60 | - | 18 | 7.50 | - |
| 2026-07-02 10:45 pm | 6.6 | 71.06 | 8.55 | 4.80 | 76.60 | 6.60 | - | 20 | 7.50 | - |
| 2026-07-02 10:30 pm | 6.6 | 71.06 | 8.51 | 4.80 | 78.20 | 6.70 | - | 19 | 7.50 | - |
| 2026-07-02 10:15 pm | 6.9 | 71.06 | 8.52 | 4.80 | 78.80 | 6.70 | - | 21 | 7.50 | - |
| 2026-07-02 10:00 pm | 6.9 | 71.24 | 8.50 | 4.70 | 79.00 | 6.80 | - | 21 | 7.50 | - |
| 2026-07-02 09:45 pm | 6.9 | 71.24 | 8.45 | 4.70 | 79.10 | 6.80 | - | 21 | 7.50 | - |
| 2026-07-02 09:30 pm | 7.2 | 71.24 | 8.43 | 4.70 | 79.40 | 6.80 | - | 21 | 7.50 | - |
| 2026-07-02 09:15 pm | 7.2 | 71.24 | 8.45 | 4.70 | 79.70 | 6.80 | - | 21 | 7.50 | - |
| 2026-07-02 09:00 pm | 7.5 | 71.24 | 8.51 | 4.80 | 79.40 | 6.80 | - | 22 | 7.50 | - |
| 2026-07-02 08:45 pm | 7.9 | 71.06 | 8.68 | 4.90 | 78.90 | 6.70 | - | 23 | 7.50 | - |
| 2026-07-02 08:30 pm | 7.9 | 70.88 | 8.77 | 4.90 | 77.80 | 6.70 | - | 33 | 7.50 | - |
| 2026-07-02 08:15 pm | 8.2 | 70.88 | 8.75 | 4.90 | 76.90 | 6.60 | - | 23 | 7.50 | - |
| 2026-07-02 08:00 pm | 8.2 | 70.88 | 8.70 | 4.90 | 76.50 | 6.60 | - | 20 | 7.50 | - |
Historical data for station RYEC1 are available at the NERRS website.
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