Station EVMC1 - Vierra Mouth, Elkhorn Slough Reserve, CA
Owned and maintained by National Estuarine Research Reserve System
Water Quality Station
36.811 N 121.779 W (36°48'40" N 121°46'45" 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): | 4.9 ft |
 Ocean Temperature (OTMP): | 57.38 °F |
| Conductivity (COND): | 49.72 mS/cm |
| Salinity (SAL): | 32.50 psu |
| Oxygen Saturation (O2PCT): | 105.4% |
| Oxygen Concentration (O2PPM): | 8.90 ppm |
| Turbidity (TURB): | 3 FTU |
| pH (PH): | 8.00 |
| TIME (PST) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-27 05:45 am | 4.9 | 57.38 | 49.73 | 32.50 | 106.00 | 8.90 | - | 3 | 8.00 | - |
| 2025-12-27 05:30 am | 4.9 | 57.56 | 49.77 | 32.60 | 106.20 | 8.90 | - | 2 | 8.00 | - |
| 2025-12-27 05:15 am | 5.2 | 57.56 | 49.73 | 32.50 | 105.80 | 8.90 | - | 3 | 8.00 | - |
| 2025-12-27 05:00 am | 5.2 | 57.56 | 49.82 | 32.60 | 106.40 | 8.90 | - | 3 | 8.00 | - |
| 2025-12-27 04:45 am | 5.2 | 57.74 | 49.84 | 32.60 | 105.70 | 8.90 | - | 3 | 8.00 | - |
| 2025-12-27 04:30 am | 5.2 | 57.74 | 49.99 | 32.70 | 106.70 | 8.90 | - | 2 | 8.00 | - |
| 2025-12-27 04:15 am | 5.6 | 57.74 | 50.05 | 32.80 | 107.10 | 9.00 | - | 2 | 8.00 | - |
| 2025-12-27 04:00 am | 5.2 | 57.74 | 50.02 | 32.80 | 107.10 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-27 03:45 am | 5.2 | 57.74 | 49.98 | 32.70 | 107.10 | 9.00 | - | 2 | 8.00 | - |
| 2025-12-27 03:30 am | 5.2 | 57.74 | 49.95 | 32.70 | 107.30 | 9.00 | - | 2 | 8.00 | - |
| 2025-12-27 03:15 am | 5.2 | 57.74 | 49.85 | 32.60 | 107.30 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-27 03:00 am | 5.2 | 57.74 | 49.89 | 32.70 | 108.70 | 9.10 | - | 2 | 8.00 | - |
| 2025-12-27 02:45 am | 4.9 | 57.74 | 49.88 | 32.70 | 108.70 | 9.10 | - | 1 | 8.00 | - |
| 2025-12-27 02:30 am | 4.9 | 57.74 | 49.86 | 32.60 | 108.90 | 9.10 | - | 1 | 8.10 | - |
| 2025-12-27 02:15 am | 4.6 | 57.74 | 49.80 | 32.60 | 107.50 | 9.00 | - | 2 | 8.00 | - |
| 2025-12-27 02:00 am | 4.6 | 57.74 | 49.82 | 32.60 | 109.00 | 9.10 | - | 2 | 8.10 | - |
| 2025-12-27 01:45 am | 4.6 | 57.74 | 49.83 | 32.60 | 108.50 | 9.10 | - | 1 | 8.00 | - |
| 2025-12-27 01:30 am | 4.3 | 57.74 | 49.82 | 32.60 | 107.90 | 9.00 | - | 2 | 8.00 | - |
| 2025-12-27 01:15 am | 3.9 | 57.92 | 49.88 | 32.70 | 108.60 | 9.10 | - | 2 | 8.10 | - |
| 2025-12-27 01:00 am | 3.9 | 57.92 | 49.89 | 32.70 | 109.40 | 9.10 | - | 2 | 8.10 | - |
| 2025-12-27 12:45 am | 3.6 | 57.92 | 49.93 | 32.70 | 110.60 | 9.20 | - | 2 | 8.10 | - |
| 2025-12-27 12:30 am | 3.3 | 57.92 | 49.84 | 32.60 | 108.90 | 9.10 | - | 3 | 8.00 | - |
| 2025-12-27 12:15 am | 3.3 | 57.92 | 49.83 | 32.60 | 108.20 | 9.00 | - | 3 | 8.00 | - |
| 2025-12-27 12:00 am | 3.0 | 57.92 | 49.75 | 32.60 | 108.50 | 9.10 | - | 2 | 8.10 | - |
| 2025-12-26 11:45 pm | 2.6 | 58.10 | 49.61 | 32.50 | 107.50 | 9.00 | - | 4 | 8.00 | - |
| 2025-12-26 11:30 pm | 2.6 | 58.28 | 49.24 | 32.20 | 101.60 | 8.50 | - | 5 | 8.00 | - |
| 2025-12-26 11:15 pm | 2.3 | 58.46 | 48.85 | 31.90 | 98.30 | 8.20 | - | 4 | 8.00 | - |
| 2025-12-26 11:00 pm | 2.3 | 58.46 | 48.80 | 31.90 | 98.20 | 8.20 | - | 4 | 8.00 | - |
| 2025-12-26 10:45 pm | 2.0 | 58.46 | 48.79 | 31.90 | 97.60 | 8.20 | - | 2 | 8.00 | - |
| 2025-12-26 10:30 pm | 2.0 | 58.46 | 48.78 | 31.90 | 97.70 | 8.20 | - | 1 | 8.00 | - |
| 2025-12-26 10:15 pm | 1.6 | 58.46 | 48.81 | 31.90 | 97.90 | 8.20 | - | 2 | 8.00 | - |
| 2025-12-26 10:00 pm | 1.6 | 58.46 | 48.83 | 31.90 | 99.30 | 8.30 | - | 2 | 8.00 | - |
| 2025-12-26 09:45 pm | 1.6 | 58.46 | 48.83 | 31.90 | 102.00 | 8.50 | - | 2 | 8.00 | - |
| 2025-12-26 09:30 pm | 1.3 | 58.46 | 48.82 | 31.90 | 100.40 | 8.40 | - | 3 | 8.00 | - |
| 2025-12-26 09:15 pm | 1.6 | 58.46 | 48.83 | 31.90 | 99.90 | 8.30 | - | 2 | 8.00 | - |
| 2025-12-26 09:00 pm | 1.6 | 58.46 | 48.83 | 31.90 | 100.10 | 8.40 | - | 2 | 8.00 | - |
| 2025-12-26 08:45 pm | 1.6 | 58.46 | 48.83 | 31.90 | 101.60 | 8.50 | - | 2 | 8.00 | - |
| 2025-12-26 08:30 pm | 1.6 | 58.46 | 48.84 | 31.90 | 102.90 | 8.60 | - | 3 | 8.00 | - |
| 2025-12-26 08:15 pm | 1.6 | 58.28 | 48.84 | 31.90 | 101.60 | 8.50 | - | 3 | 8.00 | - |
| 2025-12-26 08:00 pm | 1.6 | 58.28 | 48.84 | 31.90 | 101.50 | 8.50 | - | 3 | 8.00 | - |
| 2025-12-26 07:45 pm | 1.6 | 58.28 | 48.82 | 31.90 | 100.90 | 8.40 | - | 4 | 8.00 | - |
| 2025-12-26 07:30 pm | 2.0 | 58.28 | 48.82 | 31.90 | 101.70 | 8.50 | - | 4 | 8.00 | - |
| 2025-12-26 07:15 pm | 2.0 | 58.28 | 48.79 | 31.90 | 101.50 | 8.50 | - | 5 | 8.00 | - |
| 2025-12-26 07:00 pm | 2.3 | 58.28 | 48.78 | 31.90 | 102.40 | 8.60 | - | 5 | 8.00 | - |
| 2025-12-26 06:45 pm | 2.3 | 58.28 | 48.77 | 31.90 | 103.10 | 8.60 | - | 4 | 8.00 | - |
| 2025-12-26 06:30 pm | 2.6 | 58.28 | 48.77 | 31.90 | 103.70 | 8.70 | - | 4 | 8.00 | - |
| 2025-12-26 06:15 pm | 2.6 | 58.28 | 48.74 | 31.80 | 104.50 | 8.80 | - | 4 | 8.00 | - |
| 2025-12-26 06:00 pm | 3.0 | 58.28 | 48.71 | 31.80 | 105.30 | 8.80 | - | 4 | 8.00 | - |
| 2025-12-26 05:45 pm | 3.0 | 58.28 | 48.75 | 31.80 | 106.90 | 8.90 | - | 4 | 8.00 | - |
| 2025-12-26 05:30 pm | 3.3 | 58.28 | 48.75 | 31.80 | 107.80 | 9.00 | - | 4 | 8.00 | - |
| 2025-12-26 05:15 pm | 3.3 | 58.28 | 48.75 | 31.80 | 108.20 | 9.10 | - | 3 | 8.00 | - |
| 2025-12-26 05:00 pm | 3.6 | 58.10 | 49.20 | 32.20 | 106.90 | 8.90 | - | 2 | 8.00 | - |
| 2025-12-26 04:45 pm | 3.6 | 58.28 | 48.72 | 31.80 | 109.00 | 9.10 | - | 3 | 8.00 | - |
| 2025-12-26 04:30 pm | 3.9 | 58.28 | 48.40 | 31.60 | 109.70 | 9.20 | - | 3 | 8.10 | - |
| 2025-12-26 04:15 pm | 3.9 | 58.46 | 48.39 | 31.60 | 110.20 | 9.20 | - | 3 | 8.10 | - |
| 2025-12-26 04:00 pm | 3.9 | 58.28 | 49.02 | 32.00 | 111.10 | 9.30 | - | 3 | 8.10 | - |
| 2025-12-26 03:45 pm | 4.3 | 58.10 | 49.89 | 32.70 | 108.90 | 9.10 | - | 2 | 8.00 | - |
| 2025-12-26 03:30 pm | 4.3 | 58.28 | 49.58 | 32.40 | 110.40 | 9.20 | - | 2 | 8.10 | - |
| 2025-12-26 03:15 pm | 4.3 | 58.10 | 49.77 | 32.60 | 110.50 | 9.20 | - | 2 | 8.10 | - |
| 2025-12-26 03:00 pm | 4.6 | 58.10 | 49.94 | 32.70 | 110.80 | 9.20 | - | 2 | 8.10 | - |
| 2025-12-26 02:45 pm | 4.6 | 58.10 | 49.95 | 32.70 | 109.70 | 9.10 | - | 2 | 8.10 | - |
| 2025-12-26 02:30 pm | 4.6 | 58.10 | 50.02 | 32.80 | 109.50 | 9.10 | - | 2 | 8.10 | - |
| 2025-12-26 02:15 pm | 4.6 | 58.10 | 50.13 | 32.90 | 107.60 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-26 02:00 pm | 4.6 | 58.10 | 50.18 | 32.90 | 107.90 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-26 01:45 pm | 4.6 | 58.10 | 50.16 | 32.90 | 107.70 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-26 01:30 pm | 4.6 | 58.10 | 50.15 | 32.90 | 108.10 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-26 01:15 pm | 4.3 | 57.92 | 50.11 | 32.80 | 108.00 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-26 01:00 pm | 4.3 | 57.92 | 50.09 | 32.80 | 108.20 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-26 12:45 pm | 4.3 | 57.92 | 50.11 | 32.80 | 107.30 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-26 12:30 pm | 4.3 | 57.92 | 50.07 | 32.80 | 107.60 | 9.00 | - | 1 | 8.00 | - |
| 2025-12-26 12:15 pm | 4.3 | 57.92 | 49.95 | 32.70 | 105.70 | 8.80 | - | 1 | 8.00 | - |
| 2025-12-26 12:00 pm | 4.3 | 57.92 | 49.86 | 32.60 | 105.90 | 8.90 | - | 1 | 8.00 | - |
| 2025-12-26 11:45 am | 3.9 | 57.74 | 49.75 | 32.60 | 104.50 | 8.80 | - | 2 | 8.00 | - |
| 2025-12-26 11:30 am | 3.9 | 57.74 | 49.49 | 32.40 | 102.90 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-26 11:15 am | 3.9 | 57.74 | 49.31 | 32.20 | 100.50 | 8.40 | - | 2 | 8.00 | - |
| 2025-12-26 11:00 am | 3.6 | 57.74 | 49.28 | 32.20 | 100.70 | 8.50 | - | 1 | 8.00 | - |
| 2025-12-26 10:45 am | 3.6 | 57.74 | 49.23 | 32.20 | 100.50 | 8.40 | - | 1 | 8.00 | - |
| 2025-12-26 10:30 am | 3.6 | 57.74 | 49.20 | 32.20 | 100.30 | 8.40 | - | 2 | 8.00 | - |
| 2025-12-26 10:15 am | 3.6 | 57.74 | 49.20 | 32.20 | 99.00 | 8.30 | - | 2 | 8.00 | - |
| 2025-12-26 10:00 am | 3.6 | 57.56 | 49.12 | 32.10 | 98.30 | 8.30 | - | 1 | 8.00 | - |
| 2025-12-26 09:45 am | 3.6 | 57.74 | 49.12 | 32.10 | 101.20 | 8.50 | - | 1 | 8.00 | - |
| 2025-12-26 09:30 am | 3.3 | 57.74 | 49.10 | 32.10 | 99.90 | 8.40 | - | 1 | 8.00 | - |
| 2025-12-26 09:15 am | 3.6 | 57.74 | 49.11 | 32.10 | 100.60 | 8.50 | - | 2 | 8.00 | - |
| 2025-12-26 09:00 am | 3.3 | 57.56 | 49.10 | 32.10 | 102.10 | 8.60 | - | 3 | 8.00 | - |
| 2025-12-26 08:45 am | 3.6 | 57.56 | 49.12 | 32.10 | 101.90 | 8.60 | - | 1 | 8.00 | - |
| 2025-12-26 08:30 am | 3.3 | 57.56 | 49.15 | 32.10 | 102.20 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-26 08:15 am | 3.6 | 57.56 | 49.18 | 32.10 | 102.40 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-26 08:00 am | 3.6 | 57.56 | 49.25 | 32.20 | 102.80 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-26 07:45 am | 3.6 | 57.56 | 49.29 | 32.20 | 103.10 | 8.70 | - | 3 | 8.00 | - |
| 2025-12-26 07:30 am | 3.6 | 57.56 | 49.34 | 32.30 | 103.70 | 8.70 | - | 2 | 8.00 | - |
| 2025-12-26 07:15 am | 3.9 | 57.56 | 49.38 | 32.30 | 103.90 | 8.70 | - | 2 | 8.00 | - |
| 2025-12-26 07:00 am | 3.9 | 57.56 | 49.37 | 32.30 | 103.90 | 8.70 | - | 3 | 8.00 | - |
| 2025-12-26 06:45 am | 3.9 | 57.56 | 49.54 | 32.40 | 104.40 | 8.80 | - | 3 | 8.00 | - |
| 2025-12-26 06:30 am | 4.3 | 57.56 | 49.58 | 32.40 | 104.70 | 8.80 | - | 2 | 8.00 | - |
| 2025-12-26 06:15 am | 4.3 | 57.74 | 49.68 | 32.50 | 105.40 | 8.80 | - | 3 | 8.00 | - |
| 2025-12-26 06:00 am | 4.3 | 57.74 | 49.71 | 32.50 | 106.30 | 8.90 | - | 2 | 8.00 | - |
Historical data for station EVMC1 are available at the NERRS website.
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