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): | 4.3 ft |
 Ocean Temperature (OTMP): | 56.30 °F |
| Conductivity (COND): | 51.73 mS/cm |
| Salinity (SAL): | 34.00 psu |
| Oxygen Saturation (O2PCT): | 99.2% |
| Oxygen Concentration (O2PPM): | 8.40 ppm |
| Turbidity (TURB): | 3 FTU |
| pH (PH): | 8.00 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-18 08:45 pm | 3.9 | 56.30 | 51.69 | 34.00 | 98.90 | 8.40 | - | 3 | 8.00 | - |
| 2026-05-18 08:30 pm | 3.9 | 55.76 | 51.71 | 34.00 | 96.50 | 8.20 | - | 3 | 8.00 | - |
| 2026-05-18 08:15 pm | 3.6 | 55.04 | 51.92 | 34.10 | 90.90 | 7.80 | - | 3 | 7.90 | - |
| 2026-05-18 08:00 pm | 3.6 | 54.32 | 51.88 | 34.00 | 85.10 | 7.30 | - | 2 | 7.90 | - |
| 2026-05-18 07:45 pm | 3.3 | 53.42 | 52.06 | 34.20 | 75.60 | 6.60 | - | 2 | 7.90 | - |
| 2026-05-18 07:30 pm | 3.0 | 52.70 | 52.10 | 34.20 | 67.90 | 6.00 | - | 2 | 7.80 | - |
| 2026-05-18 07:15 pm | 3.0 | 52.52 | 52.16 | 34.20 | 63.50 | 5.60 | - | 2 | 7.80 | - |
| 2026-05-18 07:00 pm | 2.6 | 52.52 | 52.16 | 34.20 | 63.50 | 5.60 | - | 2 | 7.80 | - |
| 2026-05-18 06:45 pm | 2.6 | 52.34 | 52.18 | 34.20 | 59.00 | 5.20 | - | 2 | 7.80 | - |
| 2026-05-18 06:30 pm | 2.6 | 52.52 | 52.18 | 34.20 | 58.90 | 5.20 | - | 2 | 7.80 | - |
| 2026-05-18 06:15 pm | 2.6 | 52.34 | 52.20 | 34.20 | 58.00 | 5.10 | - | 2 | 7.80 | - |
| 2026-05-18 06:00 pm | 2.3 | 52.52 | 52.16 | 34.20 | 60.20 | 5.30 | - | 2 | 7.80 | - |
| 2026-05-18 05:45 pm | 2.3 | 52.52 | 52.16 | 34.20 | 62.90 | 5.50 | - | 2 | 7.80 | - |
| 2026-05-18 05:30 pm | 2.3 | 52.70 | 52.15 | 34.20 | 65.00 | 5.70 | - | 2 | 7.80 | - |
| 2026-05-18 05:15 pm | 2.6 | 52.70 | 52.19 | 34.20 | 68.50 | 6.00 | - | 2 | 7.80 | - |
| 2026-05-18 05:00 pm | 2.6 | 52.70 | 52.16 | 34.20 | 68.90 | 6.10 | - | 2 | 7.80 | - |
| 2026-05-18 04:45 pm | 2.6 | 52.88 | 52.15 | 34.20 | 70.60 | 6.20 | - | 2 | 7.80 | - |
| 2026-05-18 04:30 pm | 2.6 | 52.70 | 52.15 | 34.20 | 69.20 | 6.10 | - | 3 | 7.80 | - |
| 2026-05-18 04:15 pm | 2.6 | 52.70 | 52.12 | 34.20 | 71.10 | 6.30 | - | 2 | 7.80 | - |
| 2026-05-18 04:00 pm | 3.0 | 52.88 | 52.11 | 34.20 | 75.20 | 6.60 | - | 2 | 7.90 | - |
| 2026-05-18 03:45 pm | 3.0 | 52.88 | 52.04 | 34.10 | 76.70 | 6.70 | - | 2 | 7.90 | - |
| 2026-05-18 03:30 pm | 3.0 | 53.42 | 51.99 | 34.10 | 81.80 | 7.10 | - | 3 | 7.90 | - |
| 2026-05-18 03:15 pm | 3.3 | 53.24 | 52.03 | 34.10 | 79.80 | 7.00 | - | 2 | 7.90 | - |
| 2026-05-18 03:00 pm | 3.3 | 53.96 | 51.92 | 34.10 | 87.90 | 7.60 | - | 2 | 8.00 | - |
| 2026-05-18 02:45 pm | 3.3 | 52.70 | 52.07 | 34.10 | 79.30 | 7.00 | - | 1 | 7.90 | - |
| 2026-05-18 02:30 pm | 3.3 | 54.14 | 52.07 | 34.20 | 88.00 | 7.60 | - | 2 | 8.00 | - |
| 2026-05-18 02:15 pm | 3.6 | 53.06 | 52.08 | 34.20 | 81.40 | 7.10 | - | 2 | 7.90 | - |
| 2026-05-18 02:00 pm | 3.6 | 52.70 | 52.21 | 34.20 | 77.80 | 6.80 | - | 2 | 7.90 | - |
| 2026-05-18 01:45 pm | 3.6 | 52.34 | 52.10 | 34.20 | 74.20 | 6.50 | - | 2 | 7.90 | - |
| 2026-05-18 01:30 pm | 3.6 | 52.34 | 52.09 | 34.10 | 73.20 | 6.50 | - | 2 | 7.90 | - |
| 2026-05-18 01:15 pm | 3.3 | 52.34 | 52.17 | 34.20 | 67.20 | 5.90 | - | 2 | 7.90 | - |
| 2026-05-18 01:00 pm | 3.3 | 51.80 | 52.18 | 34.20 | 66.20 | 5.90 | - | 2 | 7.90 | - |
| 2026-05-18 12:45 pm | 3.3 | 51.08 | 52.26 | 34.20 | 58.80 | 5.30 | - | 3 | 7.80 | - |
| 2026-05-18 12:30 pm | 3.0 | 50.72 | 52.38 | 34.30 | 50.40 | 4.50 | - | 2 | 7.80 | - |
| 2026-05-18 12:15 pm | 3.0 | 49.64 | 52.57 | 34.40 | 41.60 | 3.80 | - | 2 | 7.70 | - |
| 2026-05-18 12:00 pm | 2.6 | 50.36 | 52.35 | 34.30 | 48.40 | 4.40 | - | 4 | 7.80 | - |
| 2026-05-18 11:45 am | 2.6 | 50.18 | 52.36 | 34.30 | 45.70 | 4.10 | - | 2 | 7.70 | - |
| 2026-05-18 11:30 am | 2.3 | 50.18 | 52.37 | 34.30 | 44.90 | 4.10 | - | 2 | 7.70 | - |
| 2026-05-18 11:15 am | 2.0 | 50.18 | 52.32 | 34.20 | 44.20 | 4.00 | - | 2 | 7.70 | - |
| 2026-05-18 11:00 am | 1.6 | 50.18 | 52.33 | 34.20 | 43.40 | 3.90 | - | 2 | 7.70 | - |
| 2026-05-18 10:45 am | 1.3 | 50.36 | 52.26 | 34.20 | 45.00 | 4.10 | - | 3 | 7.70 | - |
| 2026-05-18 10:30 am | 1.3 | 50.72 | 52.17 | 34.10 | 46.50 | 4.20 | - | 4 | 7.70 | - |
| 2026-05-18 10:15 am | 1.0 | 51.26 | 52.17 | 34.20 | 50.10 | 4.50 | - | 4 | 7.80 | - |
| 2026-05-18 10:00 am | 0.7 | 52.16 | 52.14 | 34.20 | 52.80 | 4.70 | - | 5 | 7.80 | - |
| 2026-05-18 09:45 am | 0.3 | 53.42 | 51.97 | 34.10 | 61.00 | 5.30 | - | 5 | 7.90 | - |
| 2026-05-18 04:15 am | 0.3 | 57.02 | 51.95 | 34.20 | 82.90 | 6.90 | - | 9 | 8.00 | - |
| 2026-05-18 04:00 am | 0.7 | 56.84 | 51.92 | 34.10 | 85.20 | 7.10 | - | 8 | 8.00 | - |
| 2026-05-18 03:45 am | 1.0 | 56.48 | 51.90 | 34.10 | 86.80 | 7.30 | - | 8 | 8.10 | - |
| 2026-05-18 03:30 am | 1.6 | 56.30 | 51.90 | 34.10 | 89.30 | 7.50 | - | 9 | 8.10 | - |
| 2026-05-18 03:15 am | 2.0 | 56.30 | 51.88 | 34.10 | 92.60 | 7.80 | - | 8 | 8.10 | - |
| 2026-05-18 03:00 am | 2.3 | 56.30 | 51.87 | 34.10 | 94.60 | 8.00 | - | 8 | 8.10 | - |
| 2026-05-18 02:45 am | 3.0 | 56.48 | 51.87 | 34.10 | 97.50 | 8.20 | - | 5 | 8.10 | - |
| 2026-05-18 02:30 am | 3.3 | 56.48 | 51.86 | 34.10 | 99.50 | 8.40 | - | 4 | 8.10 | - |
| 2026-05-18 02:15 am | 3.6 | 56.66 | 51.85 | 34.10 | 101.20 | 8.50 | - | 3 | 8.10 | - |
| 2026-05-18 02:00 am | 3.9 | 56.66 | 51.85 | 34.10 | 102.00 | 8.60 | - | 3 | 8.20 | - |
| 2026-05-18 01:45 am | 4.6 | 56.66 | 51.84 | 34.10 | 102.70 | 8.60 | - | 2 | 8.20 | - |
| 2026-05-18 01:30 am | 4.9 | 56.66 | 51.84 | 34.10 | 103.60 | 8.70 | - | 2 | 8.20 | - |
| 2026-05-18 01:15 am | 5.2 | 56.66 | 51.84 | 34.10 | 103.90 | 8.70 | - | 3 | 8.20 | - |
| 2026-05-18 01:00 am | 5.2 | 56.66 | 51.84 | 34.10 | 103.00 | 8.70 | - | 3 | 8.20 | - |
| 2026-05-18 12:45 am | 5.6 | 56.66 | 51.83 | 34.10 | 102.80 | 8.60 | - | 3 | 8.20 | - |
| 2026-05-18 12:30 am | 5.9 | 56.66 | 51.83 | 34.10 | 102.40 | 8.60 | - | 2 | 8.20 | - |
| 2026-05-18 12:15 am | 5.9 | 56.66 | 51.83 | 34.10 | 103.00 | 8.70 | - | 3 | 8.20 | - |
| 2026-05-18 12:00 am | 6.2 | 56.12 | 51.87 | 34.10 | 99.90 | 8.40 | - | 2 | 8.20 | - |
| 2026-05-17 11:45 pm | 6.2 | 55.04 | 51.88 | 34.10 | 89.70 | 7.70 | - | 2 | 8.10 | - |
| 2026-05-17 11:30 pm | 6.2 | 54.86 | 51.09 | 33.50 | 88.80 | 7.60 | - | 2 | 8.10 | - |
| 2026-05-17 11:15 pm | 6.2 | 56.48 | 51.78 | 34.00 | 103.70 | 8.70 | - | 2 | 8.20 | - |
| 2026-05-17 11:00 pm | 6.2 | 57.20 | 51.78 | 34.00 | 108.90 | 9.10 | - | 2 | 8.20 | - |
| 2026-05-17 10:45 pm | 6.2 | 57.02 | 51.80 | 34.00 | 108.00 | 9.00 | - | 2 | 8.20 | - |
| 2026-05-17 10:30 pm | 6.2 | 57.02 | 51.80 | 34.10 | 109.50 | 9.20 | - | 2 | 8.20 | - |
| 2026-05-17 10:15 pm | 5.9 | 57.02 | 51.76 | 34.00 | 110.10 | 9.20 | - | 2 | 8.20 | - |
| 2026-05-17 10:00 pm | 5.9 | 57.02 | 51.78 | 34.00 | 110.50 | 9.20 | - | 2 | 8.20 | - |
Historical data for station EVMC1 are available at the NERRS website.
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