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): | 3.3 ft |
 Ocean Temperature (OTMP): | 57.56 °F |
| Conductivity (COND): | 49.40 mS/cm |
| Salinity (SAL): | 32.30 psu |
| Oxygen Saturation (O2PCT): | 101.3% |
| Oxygen Concentration (O2PPM): | 8.50 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-28 06:45 pm | 3.3 | 57.56 | 49.46 | 32.40 | 98.80 | 8.30 | - | 3 | 8.00 | - |
| 2025-12-28 06:30 pm | 3.6 | 57.56 | 49.86 | 32.60 | 97.40 | 8.20 | - | 2 | 8.00 | - |
| 2025-12-28 06:15 pm | 3.6 | 57.74 | 49.89 | 32.70 | 98.20 | 8.20 | - | 2 | 8.00 | - |
| 2025-12-28 06:00 pm | 3.6 | 57.74 | 49.88 | 32.70 | 96.70 | 8.10 | - | 2 | 8.00 | - |
| 2025-12-28 05:45 pm | 3.6 | 57.74 | 49.97 | 32.70 | 99.10 | 8.30 | - | 2 | 8.00 | - |
| 2025-12-28 05:30 pm | 3.6 | 57.74 | 50.07 | 32.80 | 99.00 | 8.30 | - | 1 | 8.00 | - |
| 2025-12-28 05:15 pm | 3.6 | 57.74 | 50.06 | 32.80 | 98.40 | 8.20 | - | 1 | 8.00 | - |
| 2025-12-28 05:00 pm | 3.6 | 57.74 | 50.00 | 32.70 | 97.80 | 8.20 | - | 1 | 8.00 | - |
| 2025-12-28 04:45 pm | 3.6 | 57.74 | 50.02 | 32.80 | 98.60 | 8.30 | - | 1 | 8.00 | - |
| 2025-12-28 04:30 pm | 3.6 | 57.74 | 50.07 | 32.80 | 99.60 | 8.30 | - | 1 | 8.00 | - |
| 2025-12-28 04:15 pm | 3.3 | 57.56 | 50.01 | 32.80 | 97.90 | 8.20 | - | 1 | 8.00 | - |
| 2025-12-28 04:00 pm | 3.3 | 57.56 | 49.98 | 32.70 | 99.70 | 8.40 | - | 1 | 8.00 | - |
| 2025-12-28 03:45 pm | 3.3 | 57.56 | 49.94 | 32.70 | 100.50 | 8.40 | - | 1 | 8.00 | - |
| 2025-12-28 03:30 pm | 3.0 | 57.38 | 49.86 | 32.60 | 100.60 | 8.50 | - | 3 | 8.00 | - |
| 2025-12-28 03:15 pm | 3.0 | 57.38 | 49.80 | 32.60 | 98.50 | 8.30 | - | 1 | 8.00 | - |
| 2025-12-28 03:00 pm | 3.0 | 57.20 | 49.57 | 32.40 | 96.90 | 8.20 | - | 1 | 8.00 | - |
| 2025-12-28 02:45 pm | 2.6 | 57.02 | 49.42 | 32.30 | 95.50 | 8.10 | - | 3 | 8.00 | - |
| 2025-12-28 02:30 pm | 2.6 | 56.48 | 48.92 | 31.90 | 91.10 | 7.80 | - | 2 | 8.00 | - |
| 2025-12-28 02:15 pm | 2.6 | 56.12 | 48.63 | 31.70 | 87.00 | 7.50 | - | 1 | 8.00 | - |
| 2025-12-28 02:00 pm | 2.3 | 56.12 | 48.59 | 31.70 | 88.80 | 7.60 | - | 1 | 8.00 | - |
| 2025-12-28 01:45 pm | 2.3 | 56.12 | 48.58 | 31.70 | 88.20 | 7.60 | - | 1 | 8.00 | - |
| 2025-12-28 01:30 pm | 2.3 | 55.94 | 48.57 | 31.70 | 89.10 | 7.70 | - | 1 | 8.00 | - |
| 2025-12-28 01:15 pm | 2.3 | 55.94 | 48.53 | 31.60 | 85.10 | 7.30 | - | 1 | 7.90 | - |
| 2025-12-28 01:00 pm | 2.0 | 55.94 | 48.53 | 31.60 | 86.10 | 7.40 | - | 1 | 8.00 | - |
| 2025-12-28 12:45 pm | 2.0 | 55.94 | 48.53 | 31.60 | 85.90 | 7.40 | - | 2 | 8.00 | - |
| 2025-12-28 12:30 pm | 2.0 | 55.94 | 48.53 | 31.60 | 88.70 | 7.60 | - | 1 | 8.00 | - |
| 2025-12-28 12:15 pm | 2.0 | 55.94 | 48.56 | 31.70 | 90.60 | 7.80 | - | 2 | 8.00 | - |
| 2025-12-28 12:00 pm | 2.0 | 55.94 | 48.54 | 31.70 | 89.60 | 7.70 | - | 1 | 8.00 | - |
| 2025-12-28 11:45 am | 2.0 | 55.94 | 48.55 | 31.70 | 90.60 | 7.80 | - | 2 | 8.00 | - |
| 2025-12-28 11:30 am | 2.0 | 55.94 | 48.57 | 31.70 | 93.60 | 8.00 | - | 3 | 8.00 | - |
| 2025-12-28 11:15 am | 2.0 | 55.94 | 48.57 | 31.70 | 92.30 | 7.90 | - | 2 | 8.00 | - |
| 2025-12-28 11:00 am | 2.0 | 55.94 | 48.59 | 31.70 | 93.40 | 8.00 | - | 2 | 8.00 | - |
| 2025-12-28 10:45 am | 2.3 | 55.94 | 48.64 | 31.70 | 94.10 | 8.10 | - | 2 | 8.00 | - |
| 2025-12-28 10:30 am | 2.3 | 55.94 | 48.66 | 31.70 | 94.00 | 8.10 | - | 3 | 8.00 | - |
| 2025-12-28 10:15 am | 2.3 | 56.12 | 48.70 | 31.80 | 94.30 | 8.10 | - | 2 | 8.00 | - |
| 2025-12-28 10:00 am | 2.6 | 56.12 | 48.74 | 31.80 | 95.10 | 8.20 | - | 2 | 8.00 | - |
| 2025-12-28 09:45 am | 2.6 | 56.12 | 48.81 | 31.90 | 96.10 | 8.20 | - | 3 | 8.00 | - |
| 2025-12-28 09:30 am | 2.6 | 56.30 | 48.84 | 31.90 | 96.70 | 8.30 | - | 3 | 8.00 | - |
| 2025-12-28 09:15 am | 3.0 | 56.30 | 48.96 | 32.00 | 97.70 | 8.40 | - | 4 | 8.00 | - |
| 2025-12-28 09:00 am | 3.3 | 56.48 | 49.02 | 32.00 | 98.30 | 8.40 | - | 3 | 8.00 | - |
| 2025-12-28 08:45 am | 3.6 | 56.48 | 49.07 | 32.10 | 98.60 | 8.40 | - | 3 | 8.00 | - |
| 2025-12-28 08:30 am | 3.6 | 56.48 | 49.23 | 32.20 | 99.20 | 8.40 | - | 3 | 8.00 | - |
| 2025-12-28 08:15 am | 3.9 | 56.66 | 49.31 | 32.20 | 99.00 | 8.40 | - | 2 | 8.00 | - |
| 2025-12-28 08:00 am | 3.9 | 56.66 | 49.36 | 32.30 | 98.80 | 8.40 | - | 2 | 8.00 | - |
| 2025-12-28 07:45 am | 4.3 | 56.66 | 49.36 | 32.30 | 99.10 | 8.40 | - | 4 | 8.00 | - |
| 2025-12-28 07:30 am | 4.3 | 56.84 | 49.48 | 32.30 | 99.80 | 8.50 | - | 6 | 8.00 | - |
| 2025-12-28 07:15 am | 4.6 | 56.84 | 49.60 | 32.40 | 99.80 | 8.50 | - | 2 | 8.00 | - |
| 2025-12-28 07:00 am | 4.6 | 56.84 | 49.64 | 32.50 | 100.10 | 8.50 | - | 3 | 8.00 | - |
| 2025-12-28 06:45 am | 4.9 | 57.02 | 49.76 | 32.60 | 101.60 | 8.60 | - | 3 | 8.00 | - |
| 2025-12-28 06:30 am | 5.2 | 57.20 | 49.87 | 32.60 | 102.40 | 8.60 | - | 3 | 8.00 | - |
| 2025-12-28 06:15 am | 5.2 | 57.02 | 49.86 | 32.60 | 102.00 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-28 06:00 am | 5.2 | 56.84 | 49.80 | 32.60 | 101.30 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-28 05:45 am | 5.6 | 57.02 | 49.77 | 32.60 | 101.40 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-28 05:30 am | 5.6 | 57.20 | 49.79 | 32.60 | 101.70 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-28 05:15 am | 5.6 | 57.02 | 49.68 | 32.50 | 101.70 | 8.60 | - | 2 | 8.00 | - |
| 2025-12-28 05:00 am | 5.9 | 57.38 | 49.94 | 32.70 | 101.40 | 8.50 | - | 3 | 8.00 | - |
| 2025-12-28 04:45 am | 5.9 | 57.38 | 49.98 | 32.70 | 101.20 | 8.50 | - | 1 | 8.00 | - |
| 2025-12-28 04:30 am | 5.6 | 57.38 | 49.99 | 32.70 | 103.50 | 8.70 | - | 1 | 8.00 | - |
| 2025-12-28 04:15 am | 5.6 | 57.56 | 49.98 | 32.70 | 103.90 | 8.70 | - | 2 | 8.00 | - |
| 2025-12-28 04:00 am | 5.6 | 57.56 | 50.00 | 32.70 | 104.20 | 8.70 | - | 1 | 8.00 | - |
| 2025-12-28 03:45 am | 5.6 | 57.56 | 49.96 | 32.70 | 104.60 | 8.80 | - | 1 | 8.00 | - |
| 2025-12-28 03:30 am | 5.2 | 57.56 | 49.92 | 32.70 | 104.60 | 8.80 | - | 2 | 8.00 | - |
| 2025-12-28 03:15 am | 5.2 | 57.56 | 49.86 | 32.60 | 104.80 | 8.80 | - | 2 | 8.00 | - |
| 2025-12-28 03:00 am | 5.2 | 57.38 | 49.76 | 32.60 | 103.60 | 8.70 | - | 2 | 8.00 | - |
| 2025-12-28 02:45 am | 4.9 | 57.56 | 49.76 | 32.60 | 104.10 | 8.70 | - | 1 | 8.00 | - |
| 2025-12-28 02:30 am | 4.6 | 57.56 | 49.71 | 32.50 | 104.90 | 8.80 | - | 2 | 8.00 | - |
| 2025-12-28 02:15 am | 4.6 | 57.56 | 49.77 | 32.60 | 104.20 | 8.70 | - | 2 | 8.00 | - |
| 2025-12-28 02:00 am | 4.3 | 57.74 | 49.85 | 32.60 | 105.40 | 8.80 | - | 2 | 8.00 | - |
| 2025-12-28 01:45 am | 4.3 | 57.74 | 49.85 | 32.60 | 105.50 | 8.80 | - | 1 | 8.00 | - |
| 2025-12-28 01:30 am | 3.9 | 57.74 | 49.88 | 32.70 | 105.80 | 8.90 | - | 1 | 8.00 | - |
| 2025-12-28 01:15 am | 3.6 | 57.74 | 49.92 | 32.70 | 106.50 | 8.90 | - | 1 | 8.00 | - |
| 2025-12-28 01:00 am | 3.6 | 57.74 | 49.91 | 32.70 | 106.50 | 8.90 | - | 2 | 8.00 | - |
| 2025-12-28 12:45 am | 3.3 | 57.74 | 49.84 | 32.60 | 106.70 | 8.90 | - | 1 | 8.00 | - |
| 2025-12-28 12:30 am | 3.0 | 57.74 | 49.67 | 32.50 | 103.10 | 8.70 | - | 2 | 8.00 | - |
| 2025-12-28 12:15 am | 3.0 | 57.74 | 49.48 | 32.40 | 100.70 | 8.50 | - | 1 | 8.00 | - |
| 2025-12-28 12:00 am | 2.6 | 57.56 | 49.02 | 32.00 | 95.80 | 8.10 | - | 3 | 8.00 | - |
| 2025-12-27 11:45 pm | 2.6 | 57.56 | 48.69 | 31.80 | 92.20 | 7.80 | - | 2 | 8.00 | - |
| 2025-12-27 11:30 pm | 2.3 | 57.56 | 48.63 | 31.70 | 90.90 | 7.70 | - | 1 | 8.00 | - |
| 2025-12-27 11:15 pm | 2.3 | 57.38 | 48.57 | 31.70 | 90.10 | 7.60 | - | 1 | 8.00 | - |
| 2025-12-27 11:00 pm | 2.0 | 57.38 | 48.53 | 31.70 | 91.00 | 7.70 | - | 1 | 8.00 | - |
| 2025-12-27 10:45 pm | 2.0 | 57.38 | 48.16 | 31.40 | 94.90 | 8.10 | - | 3 | 8.00 | - |
| 2025-12-27 10:30 pm | 2.0 | 57.38 | 48.49 | 31.60 | 90.10 | 7.60 | - | 1 | 8.00 | - |
| 2025-12-27 10:15 pm | 2.0 | 57.56 | 48.57 | 31.70 | 93.50 | 7.90 | - | 1 | 8.00 | - |
| 2025-12-27 10:00 pm | 2.0 | 57.56 | 48.68 | 31.80 | 92.30 | 7.80 | - | 1 | 8.00 | - |
| 2025-12-27 09:45 pm | 2.0 | 57.56 | 48.49 | 31.60 | 90.10 | 7.60 | - | 3 | 8.00 | - |
| 2025-12-27 09:30 pm | 2.0 | 57.56 | 48.74 | 31.80 | 92.20 | 7.80 | - | 3 | 8.00 | - |
| 2025-12-27 09:15 pm | 1.6 | 57.38 | 48.44 | 31.60 | 90.10 | 7.60 | - | 1 | 8.00 | - |
| 2025-12-27 09:00 pm | 2.0 | 57.38 | 48.41 | 31.60 | 93.00 | 7.90 | - | 2 | 8.00 | - |
| 2025-12-27 08:45 pm | 2.0 | 57.20 | 48.18 | 31.40 | 95.50 | 8.10 | - | 2 | 8.00 | - |
| 2025-12-27 08:30 pm | 2.0 | 57.38 | 48.33 | 31.50 | 95.50 | 8.10 | - | 2 | 8.00 | - |
| 2025-12-27 08:15 pm | 2.3 | 57.38 | 48.41 | 31.60 | 96.10 | 8.10 | - | 2 | 8.00 | - |
| 2025-12-27 08:00 pm | 2.3 | 57.56 | 48.55 | 31.70 | 97.80 | 8.30 | - | 3 | 8.00 | - |
| 2025-12-27 07:45 pm | 2.3 | 57.56 | 48.53 | 31.70 | 97.90 | 8.30 | - | 3 | 8.00 | - |
| 2025-12-27 07:30 pm | 2.3 | 57.56 | 48.79 | 31.90 | 99.60 | 8.40 | - | 3 | 8.00 | - |
| 2025-12-27 07:15 pm | 2.6 | 57.56 | 48.74 | 31.80 | 100.00 | 8.40 | - | 3 | 8.00 | - |
| 2025-12-27 07:00 pm | 2.6 | 57.56 | 48.77 | 31.90 | 100.60 | 8.50 | - | 2 | 8.00 | - |
Historical data for station EVMC1 are available at the NERRS website.
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