View the latest observations near Central Pacific Tropical Storm Lala, Central Pacific Tropical Depression Moke and East Pacific Tropical Storm Iselle.
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): | 69.98 °F |
| Conductivity (COND): | 3.35 mS/cm |
| Salinity (SAL): | 1.80 psu |
| Oxygen Saturation (O2PCT): | 75.3% |
| Oxygen Concentration (O2PPM): | 6.60 ppm |
| Turbidity (TURB): | 20 FTU |
| pH (PH): | 7.40 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-24 05:15 am | 5.9 | 70.16 | 3.26 | 1.70 | 75.80 | 6.70 | - | 19 | 7.40 | - |
| 2026-08-24 05:00 am | 6.2 | 70.16 | 3.17 | 1.70 | 76.40 | 6.70 | - | 20 | 7.40 | - |
| 2026-08-24 04:45 am | 6.2 | 70.34 | 3.07 | 1.60 | 76.80 | 6.80 | - | 20 | 7.40 | - |
| 2026-08-24 04:30 am | 6.6 | 70.34 | 2.97 | 1.60 | 77.70 | 6.80 | - | 20 | 7.40 | - |
| 2026-08-24 04:15 am | 6.6 | 70.34 | 2.87 | 1.50 | 78.30 | 6.90 | - | 21 | 7.40 | - |
| 2026-08-24 04:00 am | 6.9 | 70.52 | 2.78 | 1.50 | 78.80 | 6.90 | - | 22 | 7.40 | - |
| 2026-08-24 03:45 am | 7.2 | 70.52 | 2.70 | 1.40 | 79.40 | 7.00 | - | 24 | 7.40 | - |
| 2026-08-24 03:30 am | 7.2 | 70.52 | 2.59 | 1.30 | 80.10 | 7.00 | - | 26 | 7.40 | - |
| 2026-08-24 03:15 am | 7.5 | 70.70 | 2.45 | 1.30 | 81.10 | 7.10 | - | 29 | 7.50 | - |
| 2026-08-24 03:00 am | 7.9 | 70.70 | 2.27 | 1.20 | 82.20 | 7.20 | - | 45 | 7.50 | - |
| 2026-08-24 02:45 am | 8.2 | 70.70 | 2.07 | 1.10 | 83.30 | 7.30 | - | 45 | 7.50 | - |
| 2026-08-24 02:30 am | 8.2 | 70.70 | 1.84 | 0.90 | 84.70 | 7.40 | - | 63 | 7.50 | - |
| 2026-08-24 02:15 am | 8.5 | 70.52 | 1.66 | 0.80 | 85.70 | 7.60 | - | 75 | 7.60 | - |
| 2026-08-24 02:00 am | 8.9 | 70.52 | 1.68 | 0.90 | 86.40 | 7.60 | - | 63 | 7.60 | - |
| 2026-08-24 01:45 am | 9.2 | 70.52 | 1.89 | 1.00 | 86.40 | 7.60 | - | 41 | 7.60 | - |
| 2026-08-24 01:30 am | 9.2 | 70.52 | 2.19 | 1.10 | 86.60 | 7.60 | - | 28 | 7.60 | - |
| 2026-08-24 01:15 am | 9.2 | 70.52 | 2.36 | 1.20 | 86.30 | 7.60 | - | 26 | 7.60 | - |
| 2026-08-24 01:00 am | 9.5 | 70.52 | 2.30 | 1.20 | 86.50 | 7.60 | - | 29 | 7.60 | - |
| 2026-08-24 12:45 am | 9.5 | 70.52 | 2.16 | 1.10 | 86.70 | 7.60 | - | 30 | 7.60 | - |
| 2026-08-24 12:30 am | 9.5 | 70.70 | 2.03 | 1.00 | 86.90 | 7.60 | - | 34 | 7.60 | - |
| 2026-08-24 12:15 am | 9.5 | 70.70 | 1.93 | 1.00 | 87.10 | 7.70 | - | 37 | 7.60 | - |
| 2026-08-24 12:00 am | 9.5 | 70.70 | 1.79 | 0.90 | 87.30 | 7.70 | - | 40 | 7.60 | - |
| 2026-08-23 11:45 pm | 9.5 | 70.70 | 1.67 | 0.90 | 87.40 | 7.70 | - | 43 | 7.60 | - |
| 2026-08-23 11:30 pm | 9.2 | 70.70 | 1.61 | 0.80 | 87.40 | 7.70 | - | 55 | 7.60 | - |
| 2026-08-23 11:15 pm | 9.2 | 70.88 | 1.57 | 0.80 | 87.30 | 7.70 | - | 56 | 7.60 | - |
| 2026-08-23 11:00 pm | 9.2 | 70.88 | 1.58 | 0.80 | 87.40 | 7.70 | - | 64 | 7.60 | - |
| 2026-08-23 10:45 pm | 9.2 | 71.24 | 1.58 | 0.80 | 87.50 | 7.70 | - | 58 | 7.60 | - |
| 2026-08-23 10:30 pm | 9.2 | 71.42 | 1.57 | 0.80 | 88.00 | 7.70 | - | 52 | 7.60 | - |
| 2026-08-23 10:15 pm | 8.9 | 71.60 | 1.53 | 0.80 | 88.30 | 7.70 | - | 47 | 7.60 | - |
| 2026-08-23 10:00 pm | 8.9 | 71.60 | 1.62 | 0.80 | 88.00 | 7.70 | - | 47 | 7.60 | - |
| 2026-08-23 09:45 pm | 8.5 | 71.60 | 1.93 | 1.00 | 87.50 | 7.60 | - | 40 | 7.60 | - |
| 2026-08-23 09:30 pm | 8.5 | 71.78 | 2.15 | 1.10 | 87.50 | 7.60 | - | 38 | 7.60 | - |
| 2026-08-23 09:15 pm | 8.2 | 71.78 | 2.50 | 1.30 | 86.50 | 7.50 | - | 35 | 7.50 | - |
| 2026-08-23 09:00 pm | 8.2 | 71.78 | 2.64 | 1.40 | 86.00 | 7.50 | - | 29 | 7.50 | - |
| 2026-08-23 08:45 pm | 7.9 | 72.14 | 2.78 | 1.40 | 86.40 | 7.50 | - | 37 | 7.50 | - |
| 2026-08-23 08:30 pm | 7.9 | 72.14 | 2.84 | 1.50 | 86.40 | 7.40 | - | 22 | 7.50 | - |
| 2026-08-23 08:15 pm | 7.5 | 72.14 | 3.33 | 1.80 | 85.10 | 7.30 | - | 18 | 7.50 | - |
| 2026-08-23 08:00 pm | 7.2 | 72.14 | 3.71 | 2.00 | 84.50 | 7.30 | - | 20 | 7.50 | - |
| 2026-08-23 07:45 pm | 7.2 | 71.96 | 3.56 | 1.90 | 84.20 | 7.30 | - | 21 | 7.50 | - |
| 2026-08-23 07:30 pm | 7.2 | 71.24 | 5.36 | 2.90 | 81.90 | 7.10 | - | 16 | 7.50 | - |
| 2026-08-23 07:15 pm | 6.9 | 70.88 | 5.38 | 2.90 | 80.30 | 7.00 | - | 16 | 7.50 | - |
| 2026-08-23 07:00 pm | 6.9 | 70.88 | 5.44 | 2.90 | 79.70 | 6.90 | - | 16 | 7.50 | - |
| 2026-08-23 06:45 pm | 6.9 | 70.88 | 5.42 | 2.90 | 80.10 | 6.90 | - | 16 | 7.50 | - |
| 2026-08-23 06:30 pm | 6.6 | 71.06 | 5.42 | 2.90 | 80.70 | 7.00 | - | 17 | 7.50 | - |
| 2026-08-23 06:15 pm | 6.6 | 71.06 | 5.38 | 2.90 | 81.00 | 7.00 | - | 16 | 7.50 | - |
| 2026-08-23 06:00 pm | 6.6 | 70.88 | 5.37 | 2.90 | 81.10 | 7.00 | - | 17 | 7.50 | - |
| 2026-08-23 05:45 pm | 6.9 | 70.88 | 5.35 | 2.90 | 81.20 | 7.00 | - | 19 | 7.50 | - |
| 2026-08-23 05:30 pm | 6.9 | 70.88 | 5.33 | 2.90 | 81.40 | 7.10 | - | 19 | 7.50 | - |
| 2026-08-23 05:15 pm | 6.9 | 70.70 | 5.29 | 2.90 | 80.90 | 7.00 | - | 20 | 7.50 | - |
| 2026-08-23 05:00 pm | 7.2 | 70.52 | 5.27 | 2.90 | 80.90 | 7.00 | - | 20 | 7.50 | - |
| 2026-08-23 04:45 pm | 7.2 | 70.52 | 5.25 | 2.80 | 80.90 | 7.10 | - | 20 | 7.50 | - |
| 2026-08-23 04:30 pm | 7.5 | 70.16 | 5.24 | 2.80 | 80.50 | 7.00 | - | 21 | 7.50 | - |
| 2026-08-23 04:15 pm | 7.5 | 69.98 | 5.24 | 2.80 | 80.00 | 7.00 | - | 20 | 7.50 | - |
| 2026-08-23 04:00 pm | 7.9 | 69.98 | 5.21 | 2.80 | 79.50 | 7.00 | - | 20 | 7.50 | - |
| 2026-08-23 03:45 pm | 7.9 | 69.80 | 5.18 | 2.80 | 79.70 | 7.00 | - | 19 | 7.50 | - |
| 2026-08-23 03:30 pm | 8.2 | 69.80 | 5.16 | 2.80 | 79.60 | 7.00 | - | 21 | 7.50 | - |
| 2026-08-23 03:15 pm | 8.2 | 69.80 | 5.10 | 2.80 | 79.90 | 7.00 | - | 19 | 7.50 | - |
| 2026-08-23 03:00 pm | 8.2 | 69.80 | 5.08 | 2.70 | 79.90 | 7.00 | - | 20 | 7.50 | - |
| 2026-08-23 02:45 pm | 8.2 | 69.80 | 5.03 | 2.70 | 80.10 | 7.00 | - | 19 | 7.50 | - |
| 2026-08-23 02:30 pm | 8.2 | 69.80 | 4.94 | 2.70 | 80.30 | 7.00 | - | 20 | 7.50 | - |
| 2026-08-23 02:15 pm | 8.2 | 69.98 | 4.75 | 2.60 | 81.20 | 7.10 | - | 20 | 7.50 | - |
| 2026-08-23 02:00 pm | 8.2 | 69.98 | 4.60 | 2.50 | 81.60 | 7.20 | - | 21 | 7.50 | - |
| 2026-08-23 01:45 pm | 8.2 | 69.98 | 4.36 | 2.30 | 82.50 | 7.20 | - | 21 | 7.50 | - |
| 2026-08-23 01:30 pm | 8.2 | 70.16 | 3.97 | 2.10 | 83.50 | 7.30 | - | 22 | 7.50 | - |
| 2026-08-23 01:15 pm | 8.2 | 70.16 | 3.62 | 1.90 | 84.40 | 7.40 | - | 19 | 7.50 | - |
| 2026-08-23 01:00 pm | 8.2 | 70.52 | 2.68 | 1.40 | 86.50 | 7.60 | - | 27 | 7.60 | - |
| 2026-08-23 12:45 pm | 8.2 | 70.34 | 2.89 | 1.50 | 86.00 | 7.60 | - | 24 | 7.60 | - |
| 2026-08-23 12:30 pm | 8.2 | 70.34 | 2.76 | 1.40 | 86.20 | 7.60 | - | 23 | 7.60 | - |
| 2026-08-23 12:15 pm | 7.9 | 70.16 | 2.92 | 1.50 | 85.60 | 7.50 | - | 23 | 7.60 | - |
| 2026-08-23 12:00 pm | 7.9 | 69.98 | 3.62 | 1.90 | 84.20 | 7.40 | - | 24 | 7.60 | - |
| 2026-08-23 11:45 am | 7.9 | 69.98 | 3.87 | 2.10 | 84.30 | 7.40 | - | 25 | 7.60 | - |
| 2026-08-23 11:30 am | 7.5 | 69.80 | 4.63 | 2.50 | 82.50 | 7.30 | - | 29 | 7.50 | - |
| 2026-08-23 11:15 am | 7.5 | 69.62 | 5.07 | 2.70 | 80.90 | 7.10 | - | 35 | 7.50 | - |
| 2026-08-23 11:00 am | 7.2 | 69.26 | 5.16 | 2.80 | 80.10 | 7.10 | - | 39 | 7.50 | - |
| 2026-08-23 10:45 am | 7.2 | 69.26 | 5.28 | 2.90 | 79.60 | 7.00 | - | 29 | 7.50 | - |
| 2026-08-23 10:30 am | 6.9 | 69.08 | 5.38 | 2.90 | 79.20 | 7.00 | - | 29 | 7.50 | - |
| 2026-08-23 10:15 am | 6.6 | 69.08 | 5.46 | 3.00 | 78.80 | 7.00 | - | 26 | 7.50 | - |
| 2026-08-23 10:00 am | 6.2 | 69.08 | 5.53 | 3.00 | 78.20 | 6.90 | - | 24 | 7.50 | - |
| 2026-08-23 09:45 am | 6.2 | 68.90 | 5.61 | 3.00 | 77.40 | 6.80 | - | 25 | 7.50 | - |
| 2026-08-23 09:30 am | 5.9 | 68.90 | 5.67 | 3.10 | 77.00 | 6.80 | - | 22 | 7.50 | - |
| 2026-08-23 09:15 am | 5.2 | 68.90 | 5.73 | 3.10 | 76.60 | 6.80 | - | 23 | 7.50 | - |
| 2026-08-23 09:00 am | 5.2 | 68.90 | 5.80 | 3.20 | 76.50 | 6.80 | - | 23 | 7.50 | - |
| 2026-08-23 08:45 am | 4.9 | 69.26 | 5.90 | 3.20 | 75.40 | 6.60 | - | 28 | 7.40 | - |
| 2026-08-23 08:30 am | 4.6 | 68.72 | 5.83 | 3.20 | 77.00 | 6.80 | - | 21 | 7.50 | - |
| 2026-08-23 08:15 am | 4.6 | 68.90 | 5.05 | 2.70 | 74.40 | 6.60 | - | 21 | 7.40 | - |
| 2026-08-23 08:00 am | 4.3 | 69.08 | 4.98 | 2.70 | 73.30 | 6.50 | - | 23 | 7.40 | - |
| 2026-08-23 07:45 am | 4.3 | 69.08 | 4.61 | 2.50 | 70.20 | 6.20 | - | 24 | 7.30 | - |
| 2026-08-23 07:30 am | 4.3 | 69.26 | 4.46 | 2.40 | 70.40 | 6.20 | - | 19 | 7.30 | - |
| 2026-08-23 07:15 am | 4.3 | 69.26 | 4.37 | 2.30 | 70.60 | 6.20 | - | 18 | 7.30 | - |
| 2026-08-23 07:00 am | 4.3 | 69.26 | 4.30 | 2.30 | 71.00 | 6.30 | - | 19 | 7.30 | - |
| 2026-08-23 06:45 am | 4.6 | 69.26 | 4.22 | 2.30 | 71.90 | 6.40 | - | 20 | 7.30 | - |
| 2026-08-23 06:30 am | 4.6 | 69.44 | 4.14 | 2.20 | 72.60 | 6.40 | - | 19 | 7.30 | - |
| 2026-08-23 06:15 am | 4.6 | 69.44 | 4.08 | 2.20 | 73.30 | 6.50 | - | 20 | 7.30 | - |
| 2026-08-23 06:00 am | 4.9 | 69.62 | 4.00 | 2.10 | 74.20 | 6.60 | - | 21 | 7.40 | - |
Historical data for station RYEC1 are available at the NERRS website.
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