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): | 3.9 ft |
 Ocean Temperature (OTMP): | 70.16 °F |
| Conductivity (COND): | 6.58 mS/cm |
| Salinity (SAL): | 3.60 psu |
| Oxygen Saturation (O2PCT): | 68.6% |
| Oxygen Concentration (O2PPM): | 6.00 ppm |
| Turbidity (TURB): | 20 FTU |
| pH (PH): | 7.20 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-07-13 12:15 pm | 3.9 | 69.98 | 6.53 | 3.60 | 69.70 | 6.10 | - | 22 | 7.20 | - |
| 2025-07-13 12:00 pm | 4.3 | 69.98 | 6.47 | 3.50 | 69.90 | 6.10 | - | 21 | 7.20 | - |
| 2025-07-13 11:45 am | 4.3 | 69.98 | 6.41 | 3.50 | 71.50 | 6.20 | - | 23 | 7.20 | - |
| 2025-07-13 11:30 am | 4.3 | 69.98 | 6.32 | 3.50 | 72.60 | 6.30 | - | 20 | 7.20 | - |
| 2025-07-13 11:15 am | 4.6 | 69.80 | 6.21 | 3.40 | 73.60 | 6.40 | - | 24 | 7.20 | - |
| 2025-07-13 11:00 am | 4.6 | 69.80 | 6.09 | 3.30 | 74.10 | 6.50 | - | 20 | 7.20 | - |
| 2025-07-13 10:45 am | 4.9 | 69.80 | 5.98 | 3.30 | 74.70 | 6.50 | - | 23 | 7.20 | - |
| 2025-07-13 10:30 am | 4.9 | 69.80 | 5.87 | 3.20 | 75.70 | 6.60 | - | 21 | 7.20 | - |
| 2025-07-13 10:15 am | 5.2 | 69.62 | 5.78 | 3.10 | 75.90 | 6.70 | - | 21 | 7.20 | - |
| 2025-07-13 10:00 am | 5.2 | 69.62 | 5.67 | 3.10 | 76.20 | 6.70 | - | 22 | 7.20 | - |
| 2025-07-13 09:45 am | 5.6 | 69.62 | 5.56 | 3.00 | 76.40 | 6.70 | - | 20 | 7.20 | - |
| 2025-07-13 09:30 am | 5.6 | 69.44 | 5.49 | 3.00 | 76.70 | 6.70 | - | 23 | 7.30 | - |
| 2025-07-13 09:15 am | 5.9 | 69.62 | 5.38 | 2.90 | 76.90 | 6.80 | - | 22 | 7.30 | - |
| 2025-07-13 09:00 am | 6.2 | 69.62 | 5.31 | 2.90 | 77.20 | 6.80 | - | 22 | 7.30 | - |
| 2025-07-13 08:45 am | 6.2 | 69.62 | 5.20 | 2.80 | 77.80 | 6.80 | - | 23 | 7.30 | - |
| 2025-07-13 08:30 am | 6.6 | 69.62 | 5.07 | 2.70 | 78.20 | 6.90 | - | 25 | 7.30 | - |
| 2025-07-13 08:15 am | 6.6 | 69.80 | 4.93 | 2.70 | 78.60 | 6.90 | - | 26 | 7.30 | - |
| 2025-07-13 08:00 am | 6.9 | 69.80 | 4.81 | 2.60 | 79.20 | 7.00 | - | 31 | 7.30 | - |
| 2025-07-13 07:45 am | 7.2 | 69.98 | 4.66 | 2.50 | 80.00 | 7.00 | - | 37 | 7.30 | - |
| 2025-07-13 07:30 am | 7.2 | 69.98 | 4.49 | 2.40 | 81.10 | 7.10 | - | 45 | 7.30 | - |
| 2025-07-13 07:15 am | 7.5 | 70.16 | 4.29 | 2.30 | 82.30 | 7.20 | - | 56 | 7.40 | - |
| 2025-07-13 07:00 am | 7.9 | 70.16 | 4.03 | 2.10 | 83.90 | 7.40 | - | 75 | 7.40 | - |
| 2025-07-13 06:45 am | 8.2 | 70.34 | 3.70 | 2.00 | 86.00 | 7.50 | - | 96 | 7.40 | - |
| 2025-07-13 06:30 am | 8.2 | 70.52 | 3.44 | 1.80 | 88.40 | 7.70 | - | 116 | 7.50 | - |
| 2025-07-13 06:15 am | 8.5 | 70.70 | 3.52 | 1.90 | 90.30 | 7.90 | - | 145 | 7.50 | - |
| 2025-07-13 06:00 am | 8.9 | 70.88 | 4.02 | 2.10 | 91.10 | 7.90 | - | 86 | 7.50 | - |
| 2025-07-13 05:45 am | 9.2 | 71.24 | 4.67 | 2.50 | 91.70 | 7.90 | - | 56 | 7.50 | - |
| 2025-07-13 05:30 am | 9.5 | 71.24 | 5.01 | 2.70 | 91.20 | 7.90 | - | 36 | 7.50 | - |
| 2025-07-13 05:15 am | 9.5 | 71.24 | 4.97 | 2.70 | 91.60 | 7.90 | - | 45 | 7.50 | - |
| 2025-07-13 05:00 am | 9.5 | 71.24 | 4.89 | 2.60 | 91.90 | 7.90 | - | 55 | 7.50 | - |
| 2025-07-13 04:45 am | 9.5 | 71.24 | 4.64 | 2.50 | 91.80 | 7.90 | - | 64 | 7.50 | - |
| 2025-07-13 04:30 am | 9.5 | 71.42 | 4.32 | 2.30 | 91.70 | 7.90 | - | 68 | 7.50 | - |
| 2025-07-13 04:15 am | 9.5 | 71.42 | 4.01 | 2.10 | 91.60 | 7.90 | - | 72 | 7.50 | - |
| 2025-07-13 04:00 am | 9.5 | 71.42 | 3.69 | 2.00 | 91.20 | 7.90 | - | 89 | 7.50 | - |
| 2025-07-13 03:45 am | 9.5 | 71.42 | 3.39 | 1.80 | 91.00 | 7.90 | - | 98 | 7.50 | - |
| 2025-07-13 03:30 am | 9.5 | 71.42 | 3.30 | 1.70 | 91.10 | 7.90 | - | 92 | 7.50 | - |
| 2025-07-13 03:15 am | 9.5 | 71.42 | 3.25 | 1.70 | 90.90 | 7.90 | - | 86 | 7.50 | - |
| 2025-07-13 03:00 am | 9.2 | 71.42 | 3.23 | 1.70 | 90.40 | 7.90 | - | 77 | 7.50 | - |
| 2025-07-13 02:45 am | 9.2 | 71.42 | 3.24 | 1.70 | 90.10 | 7.80 | - | 80 | 7.50 | - |
| 2025-07-13 02:30 am | 9.2 | 71.42 | 3.42 | 1.80 | 89.80 | 7.80 | - | 77 | 7.50 | - |
| 2025-07-13 02:15 am | 8.9 | 71.60 | 3.78 | 2.00 | 89.50 | 7.70 | - | 61 | 7.50 | - |
| 2025-07-13 02:00 am | 8.9 | 71.78 | 4.17 | 2.20 | 88.80 | 7.70 | - | 65 | 7.50 | - |
| 2025-07-13 01:45 am | 8.5 | 71.96 | 4.16 | 2.20 | 88.60 | 7.60 | - | 72 | 7.50 | - |
| 2025-07-13 01:30 am | 8.5 | 71.96 | 4.34 | 2.30 | 89.10 | 7.70 | - | 45 | 7.50 | - |
| 2025-07-13 01:15 am | 8.2 | 72.14 | 4.52 | 2.40 | 88.90 | 7.60 | - | 59 | 7.40 | - |
| 2025-07-13 01:00 am | 7.9 | 72.14 | 4.39 | 2.30 | 89.00 | 7.60 | - | 53 | 7.50 | - |
| 2025-07-13 12:45 am | 7.5 | 72.50 | 4.94 | 2.70 | 88.50 | 7.60 | - | 24 | 7.50 | - |
| 2025-07-13 12:30 am | 7.5 | 72.50 | 5.55 | 3.00 | 89.20 | 7.60 | - | 19 | 7.50 | - |
| 2025-07-13 12:15 am | 7.2 | 72.68 | 5.85 | 3.20 | 89.60 | 7.60 | - | 21 | 7.50 | - |
| 2025-07-13 12:00 am | 6.9 | 72.50 | 5.87 | 3.20 | 89.90 | 7.60 | - | 23 | 7.50 | - |
| 2025-07-12 11:45 pm | 6.9 | 72.32 | 5.95 | 3.20 | 89.40 | 7.60 | - | 21 | 7.50 | - |
| 2025-07-12 11:30 pm | 6.6 | 72.32 | 5.88 | 3.20 | 89.60 | 7.60 | - | 23 | 7.50 | - |
| 2025-07-12 11:15 pm | 6.6 | 72.86 | 6.06 | 3.30 | 87.30 | 7.40 | - | 21 | 7.40 | - |
| 2025-07-12 11:00 pm | 6.2 | 73.40 | 6.75 | 3.70 | 83.60 | 7.00 | - | 15 | 7.40 | - |
| 2025-07-12 10:45 pm | 6.2 | 73.40 | 6.76 | 3.70 | 83.80 | 7.00 | - | 13 | 7.40 | - |
| 2025-07-12 10:30 pm | 6.2 | 73.40 | 6.67 | 3.70 | 85.90 | 7.20 | - | 17 | 7.40 | - |
| 2025-07-12 10:15 pm | 6.2 | 73.40 | 6.71 | 3.70 | 84.90 | 7.10 | - | 16 | 7.40 | - |
| 2025-07-12 10:00 pm | 6.2 | 73.40 | 6.64 | 3.60 | 85.80 | 7.20 | - | 15 | 7.40 | - |
| 2025-07-12 09:45 pm | 6.6 | 73.58 | 6.63 | 3.60 | 87.30 | 7.30 | - | 19 | 7.40 | - |
| 2025-07-12 09:30 pm | 6.6 | 73.58 | 6.57 | 3.60 | 87.20 | 7.30 | - | 19 | 7.40 | - |
| 2025-07-12 09:15 pm | 6.6 | 73.58 | 6.54 | 3.60 | 87.10 | 7.30 | - | 20 | 7.40 | - |
| 2025-07-12 09:00 pm | 6.9 | 73.58 | 6.51 | 3.60 | 87.70 | 7.40 | - | 21 | 7.40 | - |
| 2025-07-12 08:45 pm | 7.2 | 73.58 | 6.63 | 3.60 | 87.80 | 7.40 | - | 22 | 7.40 | - |
| 2025-07-12 08:30 pm | 7.2 | 73.58 | 6.77 | 3.70 | 86.80 | 7.30 | - | 22 | 7.40 | - |
| 2025-07-12 08:15 pm | 7.5 | 73.40 | 6.91 | 3.80 | 86.10 | 7.20 | - | 21 | 7.40 | - |
| 2025-07-12 08:00 pm | 7.5 | 73.22 | 6.98 | 3.80 | 84.90 | 7.10 | - | 22 | 7.40 | - |
| 2025-07-12 07:45 pm | 7.9 | 73.04 | 6.99 | 3.80 | 83.80 | 7.10 | - | 24 | 7.40 | - |
| 2025-07-12 07:30 pm | 8.2 | 72.86 | 6.95 | 3.80 | 83.40 | 7.00 | - | 21 | 7.40 | - |
| 2025-07-12 07:15 pm | 8.2 | 72.86 | 6.90 | 3.80 | 82.30 | 7.00 | - | 19 | 7.40 | - |
| 2025-07-12 07:00 pm | 8.2 | 72.86 | 6.88 | 3.80 | 80.40 | 6.80 | - | 24 | 7.30 | - |
| 2025-07-12 06:45 pm | 8.2 | 72.86 | 6.85 | 3.80 | 82.20 | 7.00 | - | 29 | 7.40 | - |
| 2025-07-12 06:30 pm | 8.5 | 72.68 | 6.79 | 3.70 | 82.50 | 7.00 | - | 22 | 7.40 | - |
| 2025-07-12 06:15 pm | 8.5 | 72.86 | 6.48 | 3.50 | 84.10 | 7.10 | - | 31 | 7.40 | - |
| 2025-07-12 06:00 pm | 8.5 | 72.86 | 6.53 | 3.60 | 83.40 | 7.10 | - | 43 | 7.40 | - |
| 2025-07-12 05:45 pm | 8.5 | 72.86 | 6.21 | 3.40 | 84.50 | 7.20 | - | 32 | 7.40 | - |
| 2025-07-12 05:30 pm | 8.5 | 72.68 | 6.04 | 3.30 | 83.70 | 7.10 | - | 23 | 7.40 | - |
| 2025-07-12 05:15 pm | 8.2 | 72.86 | 5.59 | 3.00 | 85.60 | 7.30 | - | 32 | 7.40 | - |
| 2025-07-12 05:00 pm | 8.2 | 72.86 | 5.26 | 2.80 | 86.00 | 7.30 | - | 30 | 7.40 | - |
| 2025-07-12 04:45 pm | 8.2 | 72.86 | 4.25 | 2.30 | 87.90 | 7.50 | - | 35 | 7.50 | - |
| 2025-07-12 04:30 pm | 8.2 | 72.68 | 4.39 | 2.30 | 89.00 | 7.60 | - | 38 | 7.40 | - |
| 2025-07-12 04:15 pm | 8.2 | 72.68 | 4.58 | 2.50 | 88.10 | 7.50 | - | 35 | 7.40 | - |
| 2025-07-12 04:00 pm | 7.9 | 72.50 | 5.04 | 2.70 | 87.50 | 7.50 | - | 45 | 7.40 | - |
| 2025-07-12 03:45 pm | 7.9 | 72.50 | 5.70 | 3.10 | 86.80 | 7.40 | - | 46 | 7.40 | - |
| 2025-07-12 03:30 pm | 7.5 | 72.50 | 6.39 | 3.50 | 85.90 | 7.30 | - | 47 | 7.40 | - |
| 2025-07-12 03:15 pm | 7.5 | 72.32 | 6.91 | 3.80 | 85.10 | 7.20 | - | 70 | 7.40 | - |
| 2025-07-12 03:00 pm | 7.2 | 72.14 | 7.02 | 3.90 | 83.80 | 7.10 | - | 71 | 7.40 | - |
| 2025-07-12 02:45 pm | 6.9 | 71.96 | 7.09 | 3.90 | 83.40 | 7.10 | - | 56 | 7.40 | - |
| 2025-07-12 02:30 pm | 6.6 | 71.96 | 7.15 | 3.90 | 83.10 | 7.10 | - | 51 | 7.40 | - |
| 2025-07-12 02:15 pm | 6.2 | 72.14 | 7.19 | 4.00 | 83.70 | 7.10 | - | 43 | 7.40 | - |
| 2025-07-12 02:00 pm | 5.9 | 71.96 | 7.24 | 4.00 | 83.10 | 7.10 | - | 36 | 7.40 | - |
| 2025-07-12 01:45 pm | 5.6 | 72.14 | 7.28 | 4.00 | 83.00 | 7.10 | - | 30 | 7.40 | - |
| 2025-07-12 01:30 pm | 5.2 | 72.14 | 7.35 | 4.10 | 83.30 | 7.10 | - | 29 | 7.40 | - |
| 2025-07-12 01:15 pm | 4.9 | 72.68 | 7.37 | 4.10 | 85.90 | 7.30 | - | 27 | 7.40 | - |
| 2025-07-12 01:00 pm | 4.6 | 72.68 | 7.38 | 4.10 | 86.40 | 7.30 | - | 35 | 7.40 | - |
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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