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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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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): | 5.9 ft |
 Ocean Temperature (OTMP): | 68.90 °F |
| Conductivity (COND): | 8.40 mS/cm |
| Salinity (SAL): | 4.70 psu |
| Oxygen Saturation (O2PCT): | 81.7% |
| Oxygen Concentration (O2PPM): | 7.20 ppm |
| Turbidity (TURB): | 17 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-09-24 09:15 pm | 5.9 | 68.72 | 8.44 | 4.70 | 81.00 | 7.10 | - | 19 | 7.50 | - |
| 2026-09-24 09:00 pm | 5.6 | 68.90 | 7.93 | 4.40 | 80.30 | 7.10 | - | 18 | 7.50 | - |
| 2026-09-24 08:45 pm | 5.6 | 69.08 | 7.94 | 4.40 | 79.10 | 6.90 | - | 18 | 7.50 | - |
| 2026-09-24 08:30 pm | 5.6 | 69.26 | 7.90 | 4.40 | 79.30 | 6.90 | - | 18 | 7.50 | - |
| 2026-09-24 08:15 pm | 5.6 | 69.44 | 7.89 | 4.40 | 78.30 | 6.80 | - | 15 | 7.40 | - |
| 2026-09-24 08:00 pm | 5.6 | 69.26 | 7.87 | 4.40 | 78.70 | 6.90 | - | 17 | 7.50 | - |
| 2026-09-24 07:45 pm | 5.6 | 69.26 | 7.83 | 4.40 | 79.30 | 6.90 | - | 16 | 7.50 | - |
| 2026-09-24 07:30 pm | 5.6 | 69.44 | 7.90 | 4.40 | 78.90 | 6.90 | - | 18 | 7.50 | - |
| 2026-09-24 07:15 pm | 5.6 | 69.44 | 7.87 | 4.40 | 79.00 | 6.90 | - | 17 | 7.50 | - |
| 2026-09-24 07:00 pm | 5.9 | 69.44 | 7.87 | 4.40 | 79.10 | 6.90 | - | 17 | 7.50 | - |
| 2026-09-24 06:45 pm | 5.9 | 69.44 | 7.82 | 4.30 | 79.20 | 6.90 | - | 17 | 7.50 | - |
| 2026-09-24 06:30 pm | 6.2 | 69.44 | 7.83 | 4.40 | 79.30 | 6.90 | - | 18 | 7.50 | - |
| 2026-09-24 06:15 pm | 6.2 | 69.44 | 7.78 | 4.30 | 79.60 | 7.00 | - | 18 | 7.50 | - |
| 2026-09-24 06:00 pm | 6.6 | 69.26 | 7.82 | 4.30 | 79.40 | 6.90 | - | 18 | 7.50 | - |
| 2026-09-24 05:45 pm | 6.6 | 69.26 | 7.81 | 4.30 | 79.20 | 6.90 | - | 20 | 7.50 | - |
| 2026-09-24 05:30 pm | 6.9 | 69.26 | 7.84 | 4.40 | 79.00 | 6.90 | - | 20 | 7.50 | - |
| 2026-09-24 05:15 pm | 7.2 | 69.08 | 7.76 | 4.30 | 78.90 | 6.90 | - | 22 | 7.50 | - |
| 2026-09-24 05:00 pm | 7.5 | 69.08 | 7.44 | 4.10 | 79.30 | 7.00 | - | 18 | 7.50 | - |
| 2026-09-24 04:45 pm | 7.9 | 68.72 | 7.76 | 4.30 | 78.20 | 6.90 | - | 20 | 7.50 | - |
| 2026-09-24 04:30 pm | 7.9 | 68.54 | 7.69 | 4.30 | 77.60 | 6.90 | - | 20 | 7.50 | - |
| 2026-09-24 04:15 pm | 8.2 | 68.36 | 7.75 | 4.30 | 77.40 | 6.80 | - | 22 | 7.50 | - |
| 2026-09-24 04:00 pm | 8.2 | 68.18 | 7.66 | 4.30 | 77.20 | 6.80 | - | 23 | 7.50 | - |
| 2026-09-24 03:45 pm | 8.5 | 68.00 | 7.65 | 4.20 | 76.80 | 6.80 | - | 24 | 7.50 | - |
| 2026-09-24 03:30 pm | 8.5 | 68.00 | 7.59 | 4.20 | 76.60 | 6.80 | - | 21 | 7.50 | - |
| 2026-09-24 03:15 pm | 8.9 | 68.18 | 7.35 | 4.10 | 76.70 | 6.80 | - | 23 | 7.50 | - |
| 2026-09-24 03:00 pm | 8.9 | 68.54 | 6.24 | 3.40 | 78.30 | 7.00 | - | 26 | 7.50 | - |
| 2026-09-24 02:45 pm | 8.9 | 68.72 | 5.14 | 2.80 | 80.60 | 7.20 | - | 45 | 7.50 | - |
| 2026-09-24 02:30 pm | 8.9 | 68.90 | 4.93 | 2.70 | 80.70 | 7.20 | - | 57 | 7.50 | - |
| 2026-09-24 02:15 pm | 8.9 | 68.90 | 4.77 | 2.60 | 81.00 | 7.20 | - | 51 | 7.50 | - |
| 2026-09-24 02:00 pm | 8.9 | 69.08 | 4.65 | 2.50 | 81.30 | 7.20 | - | 52 | 7.50 | - |
| 2026-09-24 01:45 pm | 8.9 | 69.08 | 4.56 | 2.40 | 81.30 | 7.20 | - | 50 | 7.50 | - |
| 2026-09-24 01:30 pm | 8.5 | 69.26 | 4.52 | 2.40 | 81.50 | 7.20 | - | 51 | 7.50 | - |
| 2026-09-24 01:15 pm | 8.5 | 69.08 | 4.76 | 2.60 | 81.20 | 7.20 | - | 37 | 7.50 | - |
| 2026-09-24 01:00 pm | 8.5 | 68.72 | 5.11 | 2.80 | 80.00 | 7.10 | - | 34 | 7.50 | - |
| 2026-09-24 12:45 pm | 8.2 | 68.36 | 5.57 | 3.00 | 79.50 | 7.10 | - | 33 | 7.50 | - |
| 2026-09-24 12:30 pm | 8.2 | 68.18 | 6.27 | 3.40 | 78.60 | 7.00 | - | 31 | 7.50 | - |
| 2026-09-24 12:15 pm | 8.2 | 67.82 | 6.89 | 3.80 | 78.10 | 7.00 | - | 33 | 7.50 | - |
| 2026-09-24 12:00 pm | 7.9 | 67.64 | 7.52 | 4.20 | 77.50 | 6.90 | - | 34 | 7.50 | - |
| 2026-09-24 11:45 am | 7.9 | 67.64 | 7.94 | 4.40 | 77.00 | 6.90 | - | 38 | 7.50 | - |
| 2026-09-24 11:30 am | 7.5 | 67.46 | 8.15 | 4.50 | 76.50 | 6.80 | - | 34 | 7.50 | - |
| 2026-09-24 11:15 am | 7.2 | 67.28 | 8.30 | 4.60 | 76.20 | 6.80 | - | 32 | 7.50 | - |
| 2026-09-24 11:00 am | 6.9 | 67.28 | 8.36 | 4.70 | 75.80 | 6.80 | - | 28 | 7.50 | - |
| 2026-09-24 10:45 am | 6.6 | 67.28 | 8.38 | 4.70 | 75.10 | 6.70 | - | 24 | 7.50 | - |
| 2026-09-24 10:30 am | 6.2 | 67.10 | 8.39 | 4.70 | 74.50 | 6.70 | - | 21 | 7.40 | - |
| 2026-09-24 10:15 am | 5.9 | 67.28 | 8.41 | 4.70 | 74.00 | 6.60 | - | 21 | 7.40 | - |
| 2026-09-24 10:00 am | 5.6 | 67.28 | 8.42 | 4.70 | 74.00 | 6.60 | - | 19 | 7.40 | - |
| 2026-09-24 09:45 am | 5.2 | 67.64 | 8.41 | 4.70 | 72.90 | 6.50 | - | 21 | 7.40 | - |
| 2026-09-24 09:30 am | 4.9 | 67.46 | 8.42 | 4.70 | 74.10 | 6.60 | - | 21 | 7.40 | - |
| 2026-09-24 09:15 am | 4.6 | 67.10 | 8.29 | 4.60 | 74.70 | 6.70 | - | 19 | 7.40 | - |
| 2026-09-24 09:00 am | 4.6 | 66.56 | 7.84 | 4.40 | 70.90 | 6.40 | - | 17 | 7.40 | - |
| 2026-09-24 08:45 am | 4.6 | 66.38 | 7.67 | 4.30 | 68.90 | 6.20 | - | 20 | 7.40 | - |
| 2026-09-24 08:30 am | 4.6 | 66.38 | 7.67 | 4.30 | 69.40 | 6.30 | - | 18 | 7.40 | - |
| 2026-09-24 08:15 am | 4.6 | 66.56 | 7.66 | 4.30 | 70.00 | 6.30 | - | 18 | 7.40 | - |
| 2026-09-24 08:00 am | 4.6 | 66.56 | 7.66 | 4.30 | 70.70 | 6.40 | - | 17 | 7.40 | - |
| 2026-09-24 07:45 am | 4.6 | 66.56 | 7.65 | 4.30 | 71.40 | 6.40 | - | 17 | 7.40 | - |
| 2026-09-24 07:30 am | 4.9 | 66.74 | 7.64 | 4.20 | 72.10 | 6.50 | - | 16 | 7.40 | - |
| 2026-09-24 07:15 am | 4.9 | 66.74 | 7.63 | 4.20 | 72.80 | 6.50 | - | 16 | 7.40 | - |
| 2026-09-24 07:00 am | 5.2 | 66.92 | 7.61 | 4.20 | 73.50 | 6.60 | - | 15 | 7.40 | - |
| 2026-09-24 06:45 am | 5.2 | 66.92 | 7.58 | 4.20 | 73.80 | 6.60 | - | 15 | 7.40 | - |
| 2026-09-24 06:30 am | 5.2 | 66.92 | 7.55 | 4.20 | 74.40 | 6.70 | - | 16 | 7.40 | - |
| 2026-09-24 06:15 am | 5.6 | 67.10 | 7.51 | 4.20 | 75.00 | 6.70 | - | 15 | 7.40 | - |
| 2026-09-24 06:00 am | 5.6 | 67.10 | 7.43 | 4.10 | 75.50 | 6.80 | - | 15 | 7.40 | - |
| 2026-09-24 05:45 am | 5.9 | 67.28 | 7.33 | 4.10 | 76.00 | 6.80 | - | 16 | 7.40 | - |
| 2026-09-24 05:30 am | 6.2 | 67.28 | 7.19 | 4.00 | 76.50 | 6.90 | - | 16 | 7.40 | - |
| 2026-09-24 05:15 am | 6.2 | 67.46 | 7.03 | 3.90 | 77.00 | 6.90 | - | 17 | 7.50 | - |
| 2026-09-24 05:00 am | 6.6 | 67.46 | 6.91 | 3.80 | 77.40 | 6.90 | - | 18 | 7.50 | - |
| 2026-09-24 04:45 am | 6.6 | 67.64 | 6.78 | 3.70 | 77.90 | 7.00 | - | 19 | 7.50 | - |
| 2026-09-24 04:30 am | 6.9 | 67.64 | 6.67 | 3.70 | 78.30 | 7.00 | - | 20 | 7.50 | - |
| 2026-09-24 04:15 am | 7.2 | 67.82 | 6.56 | 3.60 | 79.00 | 7.10 | - | 21 | 7.50 | - |
| 2026-09-24 04:00 am | 7.5 | 68.00 | 6.44 | 3.50 | 79.50 | 7.10 | - | 23 | 7.50 | - |
| 2026-09-24 03:45 am | 7.5 | 68.00 | 6.31 | 3.50 | 80.00 | 7.10 | - | 26 | 7.50 | - |
| 2026-09-24 03:30 am | 7.9 | 68.00 | 6.11 | 3.30 | 80.40 | 7.20 | - | 31 | 7.50 | - |
| 2026-09-24 03:15 am | 8.2 | 68.00 | 5.77 | 3.10 | 80.90 | 7.20 | - | 43 | 7.50 | - |
| 2026-09-24 03:00 am | 8.5 | 68.00 | 5.27 | 2.90 | 81.30 | 7.30 | - | 50 | 7.50 | - |
| 2026-09-24 02:45 am | 8.9 | 67.82 | 5.18 | 2.80 | 82.20 | 7.40 | - | 39 | 7.60 | - |
| 2026-09-24 02:30 am | 8.9 | 67.82 | 5.60 | 3.00 | 82.70 | 7.40 | - | 33 | 7.60 | - |
| 2026-09-24 02:15 am | 9.2 | 67.82 | 5.86 | 3.20 | 82.70 | 7.40 | - | 31 | 7.60 | - |
| 2026-09-24 02:00 am | 9.2 | 67.82 | 5.83 | 3.20 | 82.90 | 7.40 | - | 34 | 7.60 | - |
| 2026-09-24 01:45 am | 9.2 | 67.82 | 5.61 | 3.10 | 82.80 | 7.40 | - | 40 | 7.60 | - |
| 2026-09-24 01:30 am | 9.2 | 67.82 | 5.52 | 3.00 | 83.00 | 7.40 | - | 46 | 7.60 | - |
| 2026-09-24 01:15 am | 9.2 | 67.82 | 5.36 | 2.90 | 82.90 | 7.40 | - | 49 | 7.60 | - |
| 2026-09-24 01:00 am | 9.2 | 67.82 | 5.16 | 2.80 | 82.80 | 7.40 | - | 61 | 7.60 | - |
| 2026-09-24 12:45 am | 9.2 | 67.82 | 4.99 | 2.70 | 82.60 | 7.40 | - | 54 | 7.60 | - |
| 2026-09-24 12:30 am | 9.2 | 68.00 | 4.93 | 2.70 | 82.70 | 7.40 | - | 60 | 7.60 | - |
| 2026-09-24 12:15 am | 8.9 | 68.00 | 4.95 | 2.70 | 82.40 | 7.40 | - | 54 | 7.60 | - |
| 2026-09-24 12:00 am | 8.9 | 68.18 | 5.19 | 2.80 | 82.20 | 7.30 | - | 49 | 7.60 | - |
| 2026-09-23 11:45 pm | 8.9 | 68.36 | 5.51 | 3.00 | 82.30 | 7.30 | - | 47 | 7.60 | - |
| 2026-09-23 11:30 pm | 8.5 | 68.54 | 5.70 | 3.10 | 82.30 | 7.30 | - | 57 | 7.50 | - |
| 2026-09-23 11:15 pm | 8.5 | 68.54 | 5.82 | 3.20 | 82.70 | 7.30 | - | 54 | 7.50 | - |
| 2026-09-23 11:00 pm | 8.2 | 68.72 | 5.88 | 3.20 | 82.70 | 7.30 | - | 64 | 7.50 | - |
| 2026-09-23 10:45 pm | 8.2 | 68.72 | 6.07 | 3.30 | 82.70 | 7.30 | - | 52 | 7.50 | - |
| 2026-09-23 10:30 pm | 7.9 | 68.90 | 6.46 | 3.50 | 82.90 | 7.30 | - | 41 | 7.50 | - |
| 2026-09-23 10:15 pm | 7.9 | 68.72 | 7.02 | 3.90 | 83.00 | 7.30 | - | 27 | 7.50 | - |
| 2026-09-23 10:00 pm | 7.5 | 68.54 | 7.44 | 4.10 | 83.50 | 7.40 | - | 18 | 7.50 | - |
Historical data for station RYEC1 are available at the NERRS website.
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