View the latest observations near Atlantic Tropical Storm Bertha and East Pacific Hurricane Fausto.
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): | 5.2 ft |
 Ocean Temperature (OTMP): | 72.14 °F |
| Conductivity (COND): | 5.16 mS/cm |
| Salinity (SAL): | 2.80 psu |
| Oxygen Saturation (O2PCT): | 70.2% |
| Oxygen Concentration (O2PPM): | 6.00 ppm |
| Turbidity (TURB): | 15 FTU |
| pH (PH): | 7.30 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-22 04:15 am | 5.2 | 72.14 | 5.09 | 2.70 | 70.50 | 6.00 | - | 16 | 7.30 | - |
| 2026-07-22 04:00 am | 5.6 | 72.14 | 5.00 | 2.70 | 71.10 | 6.10 | - | 15 | 7.30 | - |
| 2026-07-22 03:45 am | 5.6 | 72.32 | 4.92 | 2.60 | 71.70 | 6.10 | - | 16 | 7.30 | - |
| 2026-07-22 03:30 am | 5.6 | 72.32 | 4.84 | 2.60 | 72.10 | 6.20 | - | 15 | 7.30 | - |
| 2026-07-22 03:15 am | 5.9 | 72.32 | 4.74 | 2.50 | 72.60 | 6.20 | - | 15 | 7.40 | - |
| 2026-07-22 03:00 am | 5.9 | 72.32 | 4.59 | 2.50 | 73.10 | 6.30 | - | 15 | 7.40 | - |
| 2026-07-22 02:45 am | 6.2 | 72.32 | 4.44 | 2.40 | 73.70 | 6.30 | - | 16 | 7.40 | - |
| 2026-07-22 02:30 am | 6.2 | 72.32 | 4.29 | 2.30 | 74.20 | 6.40 | - | 16 | 7.40 | - |
| 2026-07-22 02:15 am | 6.6 | 72.32 | 4.13 | 2.20 | 74.70 | 6.40 | - | 16 | 7.40 | - |
| 2026-07-22 02:00 am | 6.6 | 72.32 | 4.01 | 2.10 | 75.10 | 6.40 | - | 17 | 7.40 | - |
| 2026-07-22 01:45 am | 6.9 | 72.32 | 3.88 | 2.10 | 75.70 | 6.50 | - | 17 | 7.40 | - |
| 2026-07-22 01:30 am | 6.9 | 72.32 | 3.77 | 2.00 | 76.20 | 6.50 | - | 18 | 7.40 | - |
| 2026-07-22 01:15 am | 7.2 | 72.32 | 3.64 | 1.90 | 76.70 | 6.60 | - | 19 | 7.40 | - |
| 2026-07-22 01:00 am | 7.2 | 72.32 | 3.48 | 1.80 | 77.60 | 6.70 | - | 20 | 7.40 | - |
| 2026-07-22 12:45 am | 7.5 | 72.32 | 3.33 | 1.80 | 78.30 | 6.70 | - | 21 | 7.40 | - |
| 2026-07-22 12:30 am | 7.9 | 72.32 | 3.18 | 1.70 | 79.10 | 6.80 | - | 25 | 7.40 | - |
| 2026-07-22 12:15 am | 7.9 | 72.32 | 3.01 | 1.60 | 79.90 | 6.90 | - | 32 | 7.50 | - |
| 2026-07-22 12:00 am | 8.2 | 72.14 | 2.77 | 1.40 | 80.90 | 7.00 | - | 39 | 7.50 | - |
| 2026-07-21 11:45 pm | 8.5 | 71.96 | 2.45 | 1.30 | 81.90 | 7.10 | - | 52 | 7.50 | - |
| 2026-07-21 11:30 pm | 8.9 | 71.78 | 2.31 | 1.20 | 82.50 | 7.20 | - | 56 | 7.50 | - |
| 2026-07-21 11:15 pm | 9.2 | 71.60 | 2.52 | 1.30 | 82.10 | 7.10 | - | 52 | 7.50 | - |
| 2026-07-21 11:00 pm | 9.2 | 71.60 | 2.93 | 1.50 | 82.00 | 7.10 | - | 26 | 7.50 | - |
| 2026-07-21 10:45 pm | 9.5 | 71.42 | 3.21 | 1.70 | 82.30 | 7.10 | - | 27 | 7.50 | - |
| 2026-07-21 10:30 pm | 9.5 | 71.42 | 3.30 | 1.70 | 82.10 | 7.10 | - | 32 | 7.50 | - |
| 2026-07-21 10:15 pm | 9.5 | 71.42 | 3.25 | 1.70 | 82.30 | 7.10 | - | 39 | 7.50 | - |
| 2026-07-21 10:00 pm | 9.5 | 71.42 | 3.08 | 1.60 | 82.10 | 7.10 | - | 39 | 7.50 | - |
| 2026-07-21 09:45 pm | 9.5 | 71.60 | 2.89 | 1.50 | 82.10 | 7.10 | - | 44 | 7.50 | - |
| 2026-07-21 09:30 pm | 9.5 | 71.60 | 2.73 | 1.40 | 82.30 | 7.10 | - | 48 | 7.50 | - |
| 2026-07-21 09:15 pm | 9.5 | 71.78 | 2.51 | 1.30 | 82.60 | 7.20 | - | 54 | 7.50 | - |
| 2026-07-21 09:00 pm | 9.5 | 71.96 | 2.34 | 1.20 | 82.80 | 7.20 | - | 56 | 7.50 | - |
| 2026-07-21 08:45 pm | 9.5 | 72.14 | 2.27 | 1.20 | 83.40 | 7.20 | - | 68 | 7.50 | - |
| 2026-07-21 08:30 pm | 9.2 | 71.96 | 2.22 | 1.10 | 83.20 | 7.20 | - | 58 | 7.50 | - |
| 2026-07-21 08:15 pm | 9.2 | 71.96 | 2.19 | 1.10 | 83.10 | 7.20 | - | 63 | 7.50 | - |
| 2026-07-21 08:00 pm | 9.2 | 72.14 | 2.18 | 1.10 | 83.30 | 7.20 | - | 50 | 7.50 | - |
| 2026-07-21 07:45 pm | 9.2 | 72.32 | 2.19 | 1.10 | 83.70 | 7.20 | - | 59 | 7.50 | - |
| 2026-07-21 07:30 pm | 8.9 | 72.50 | 2.22 | 1.10 | 84.10 | 7.20 | - | 56 | 7.50 | - |
| 2026-07-21 07:15 pm | 8.9 | 72.68 | 2.22 | 1.10 | 84.30 | 7.20 | - | 55 | 7.50 | - |
| 2026-07-21 07:00 pm | 8.5 | 72.86 | 2.39 | 1.20 | 84.30 | 7.20 | - | 44 | 7.50 | - |
| 2026-07-21 06:45 pm | 8.5 | 73.22 | 2.68 | 1.40 | 84.30 | 7.20 | - | 43 | 7.50 | - |
| 2026-07-21 06:30 pm | 8.2 | 73.40 | 3.09 | 1.60 | 84.40 | 7.20 | - | 35 | 7.50 | - |
| 2026-07-21 06:15 pm | 8.2 | 73.40 | 3.56 | 1.90 | 82.90 | 7.00 | - | 41 | 7.50 | - |
| 2026-07-21 06:00 pm | 7.9 | 73.22 | 3.91 | 2.10 | 81.40 | 6.90 | - | 43 | 7.50 | - |
| 2026-07-21 05:45 pm | 7.9 | 73.04 | 4.21 | 2.20 | 80.00 | 6.80 | - | 36 | 7.40 | - |
| 2026-07-21 05:30 pm | 7.5 | 73.22 | 4.45 | 2.40 | 79.70 | 6.80 | - | 29 | 7.40 | - |
| 2026-07-21 05:15 pm | 7.2 | 73.22 | 4.65 | 2.50 | 79.20 | 6.70 | - | 31 | 7.40 | - |
| 2026-07-21 05:00 pm | 7.2 | 73.04 | 4.85 | 2.60 | 77.60 | 6.60 | - | 23 | 7.40 | - |
| 2026-07-21 04:45 pm | 6.9 | 73.04 | 5.25 | 2.80 | 77.90 | 6.60 | - | 18 | 7.40 | - |
| 2026-07-21 04:30 pm | 6.6 | 73.22 | 5.61 | 3.00 | 78.50 | 6.60 | - | 16 | 7.40 | - |
| 2026-07-21 04:15 pm | 6.6 | 73.04 | 5.88 | 3.20 | 78.60 | 6.60 | - | 18 | 7.40 | - |
| 2026-07-21 04:00 pm | 6.2 | 73.22 | 5.91 | 3.20 | 78.90 | 6.70 | - | 16 | 7.40 | - |
| 2026-07-21 03:45 pm | 6.2 | 73.94 | 6.11 | 3.30 | 82.30 | 6.90 | - | 17 | 7.50 | - |
| 2026-07-21 03:30 pm | 5.9 | 73.76 | 6.07 | 3.30 | 82.20 | 6.90 | - | 17 | 7.50 | - |
| 2026-07-21 03:15 pm | 5.9 | 73.58 | 6.05 | 3.30 | 82.30 | 6.90 | - | 16 | 7.50 | - |
| 2026-07-21 03:00 pm | 5.9 | 72.68 | 6.12 | 3.30 | 79.80 | 6.80 | - | 19 | 7.50 | - |
| 2026-07-21 02:45 pm | 5.6 | 72.14 | 6.19 | 3.40 | 74.50 | 6.40 | - | 18 | 7.40 | - |
| 2026-07-21 02:30 pm | 5.6 | 71.42 | 6.30 | 3.40 | 72.50 | 6.20 | - | 18 | 7.40 | - |
| 2026-07-21 02:15 pm | 5.6 | 71.60 | 6.28 | 3.40 | 73.50 | 6.30 | - | 17 | 7.40 | - |
| 2026-07-21 02:00 pm | 5.6 | 71.60 | 6.28 | 3.40 | 74.00 | 6.30 | - | 20 | 7.40 | - |
| 2026-07-21 01:45 pm | 5.6 | 71.60 | 6.26 | 3.40 | 74.20 | 6.40 | - | 18 | 7.40 | - |
| 2026-07-21 01:30 pm | 5.9 | 71.42 | 6.26 | 3.40 | 74.10 | 6.40 | - | 17 | 7.40 | - |
| 2026-07-21 01:15 pm | 5.9 | 71.42 | 6.25 | 3.40 | 74.40 | 6.40 | - | 18 | 7.40 | - |
| 2026-07-21 01:00 pm | 5.9 | 71.60 | 6.21 | 3.40 | 75.50 | 6.50 | - | 17 | 7.40 | - |
| 2026-07-21 12:45 pm | 6.2 | 71.42 | 6.25 | 3.40 | 75.80 | 6.50 | - | 19 | 7.40 | - |
| 2026-07-21 12:30 pm | 6.2 | 71.24 | 6.27 | 3.40 | 76.10 | 6.60 | - | 17 | 7.40 | - |
| 2026-07-21 12:15 pm | 6.6 | 70.88 | 6.32 | 3.50 | 75.20 | 6.50 | - | 17 | 7.40 | - |
| 2026-07-21 12:00 pm | 6.6 | 70.88 | 6.29 | 3.40 | 75.20 | 6.50 | - | 18 | 7.40 | - |
| 2026-07-21 11:45 am | 6.9 | 70.70 | 6.25 | 3.40 | 74.70 | 6.50 | - | 17 | 7.40 | - |
| 2026-07-21 11:30 am | 6.9 | 70.52 | 6.18 | 3.40 | 74.50 | 6.50 | - | 17 | 7.40 | - |
| 2026-07-21 11:15 am | 7.2 | 70.52 | 6.12 | 3.30 | 74.60 | 6.50 | - | 19 | 7.40 | - |
| 2026-07-21 11:00 am | 7.2 | 70.52 | 6.06 | 3.30 | 74.30 | 6.50 | - | 19 | 7.40 | - |
| 2026-07-21 10:45 am | 7.5 | 70.34 | 6.05 | 3.30 | 74.10 | 6.40 | - | 20 | 7.40 | - |
| 2026-07-21 10:30 am | 7.5 | 70.34 | 5.98 | 3.30 | 74.20 | 6.40 | - | 19 | 7.40 | - |
| 2026-07-21 10:15 am | 7.9 | 70.52 | 5.87 | 3.20 | 74.20 | 6.50 | - | 19 | 7.40 | - |
| 2026-07-21 10:00 am | 7.9 | 70.52 | 5.73 | 3.10 | 73.90 | 6.40 | - | 19 | 7.40 | - |
| 2026-07-21 09:45 am | 7.9 | 70.52 | 5.49 | 3.00 | 74.80 | 6.50 | - | 20 | 7.40 | - |
| 2026-07-21 09:30 am | 7.9 | 70.52 | 5.22 | 2.80 | 74.90 | 6.50 | - | 20 | 7.40 | - |
| 2026-07-21 09:15 am | 7.9 | 70.52 | 5.01 | 2.70 | 75.10 | 6.50 | - | 20 | 7.40 | - |
| 2026-07-21 09:00 am | 7.9 | 70.52 | 4.90 | 2.60 | 75.30 | 6.60 | - | 19 | 7.40 | - |
| 2026-07-21 08:45 am | 7.9 | 70.70 | 4.71 | 2.50 | 75.30 | 6.60 | - | 18 | 7.40 | - |
| 2026-07-21 08:30 am | 7.9 | 70.70 | 4.44 | 2.40 | 75.70 | 6.60 | - | 21 | 7.40 | - |
| 2026-07-21 08:15 am | 7.9 | 70.52 | 4.72 | 2.50 | 75.20 | 6.60 | - | 22 | 7.40 | - |
| 2026-07-21 08:00 am | 7.9 | 70.52 | 5.01 | 2.70 | 75.20 | 6.60 | - | 22 | 7.40 | - |
| 2026-07-21 07:45 am | 7.5 | 70.52 | 5.24 | 2.80 | 75.40 | 6.60 | - | 22 | 7.40 | - |
| 2026-07-21 07:30 am | 7.5 | 70.52 | 5.51 | 3.00 | 75.30 | 6.60 | - | 22 | 7.50 | - |
| 2026-07-21 07:15 am | 7.2 | 70.34 | 5.83 | 3.20 | 75.30 | 6.50 | - | 22 | 7.50 | - |
| 2026-07-21 07:00 am | 7.2 | 70.34 | 6.03 | 3.30 | 75.20 | 6.50 | - | 22 | 7.50 | - |
| 2026-07-21 06:45 am | 6.9 | 70.34 | 6.21 | 3.40 | 75.00 | 6.50 | - | 21 | 7.50 | - |
| 2026-07-21 06:30 am | 6.9 | 70.34 | 6.30 | 3.40 | 75.00 | 6.50 | - | 20 | 7.50 | - |
| 2026-07-21 06:15 am | 6.6 | 70.34 | 6.36 | 3.50 | 75.00 | 6.50 | - | 19 | 7.50 | - |
| 2026-07-21 06:00 am | 6.2 | 70.34 | 6.43 | 3.50 | 74.70 | 6.50 | - | 18 | 7.40 | - |
| 2026-07-21 05:45 am | 6.2 | 70.34 | 6.51 | 3.60 | 74.70 | 6.50 | - | 19 | 7.40 | - |
| 2026-07-21 05:30 am | 5.9 | 70.16 | 6.53 | 3.60 | 74.70 | 6.50 | - | 19 | 7.40 | - |
| 2026-07-21 05:15 am | 5.6 | 70.34 | 6.60 | 3.60 | 73.70 | 6.40 | - | 21 | 7.40 | - |
| 2026-07-21 05:00 am | 5.2 | 69.98 | 6.51 | 3.60 | 75.50 | 6.60 | - | 17 | 7.50 | - |
Historical data for station RYEC1 are available at the NERRS website.
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