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): | 1.6 ft |
 Ocean Temperature (OTMP): | 61.16 °F |
| Conductivity (COND): | 50.91 mS/cm |
| Salinity (SAL): | 33.50 psu |
| Oxygen Saturation (O2PCT): | 85.5% |
| Oxygen Concentration (O2PPM): | 6.90 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-12 01:45 am | 1.6 | 61.16 | 50.89 | 33.40 | 85.40 | 6.90 | - | 4 | 8.00 | - |
| 2026-05-12 01:30 am | 1.6 | 61.16 | 50.91 | 33.50 | 86.40 | 6.90 | - | 3 | 8.00 | - |
| 2026-05-12 01:15 am | 1.6 | 61.16 | 50.93 | 33.50 | 88.30 | 7.10 | - | 3 | 8.00 | - |
| 2026-05-12 01:00 am | 1.6 | 60.98 | 50.94 | 33.50 | 90.40 | 7.30 | - | 3 | 8.10 | - |
| 2026-05-12 12:45 am | 1.6 | 60.80 | 50.96 | 33.50 | 91.50 | 7.40 | - | 3 | 8.10 | - |
| 2026-05-12 12:30 am | 2.0 | 60.62 | 50.99 | 33.50 | 94.10 | 7.60 | - | 4 | 8.10 | - |
| 2026-05-12 12:15 am | 2.0 | 60.44 | 51.03 | 33.50 | 96.00 | 7.80 | - | 3 | 8.10 | - |
| 2026-05-12 12:00 am | 2.0 | 60.26 | 51.06 | 33.60 | 97.80 | 7.90 | - | 3 | 8.10 | - |
| 2026-05-11 11:45 pm | 2.3 | 60.08 | 51.12 | 33.60 | 99.90 | 8.10 | - | 3 | 8.10 | - |
| 2026-05-11 11:30 pm | 2.3 | 59.90 | 51.17 | 33.60 | 100.30 | 8.20 | - | 3 | 8.10 | - |
| 2026-05-11 11:15 pm | 2.6 | 59.72 | 51.22 | 33.70 | 100.90 | 8.20 | - | 4 | 8.10 | - |
| 2026-05-11 11:00 pm | 3.0 | 59.54 | 51.25 | 33.70 | 101.00 | 8.20 | - | 3 | 8.10 | - |
| 2026-05-11 10:45 pm | 3.0 | 59.36 | 51.27 | 33.70 | 100.10 | 8.20 | - | 3 | 8.10 | - |
| 2026-05-11 10:30 pm | 3.3 | 59.00 | 51.31 | 33.70 | 97.90 | 8.00 | - | 4 | 8.10 | - |
| 2026-05-11 10:15 pm | 3.3 | 58.82 | 51.30 | 33.70 | 97.40 | 8.00 | - | 4 | 8.10 | - |
| 2026-05-11 10:00 pm | 3.6 | 57.92 | 51.41 | 33.80 | 91.30 | 7.60 | - | 4 | 8.10 | - |
| 2026-05-11 09:45 pm | 3.6 | 57.56 | 51.41 | 33.80 | 88.90 | 7.40 | - | 4 | 8.00 | - |
| 2026-05-11 09:30 pm | 3.9 | 57.20 | 51.50 | 33.80 | 87.30 | 7.30 | - | 3 | 8.00 | - |
| 2026-05-11 09:15 pm | 3.9 | 57.20 | 51.52 | 33.80 | 88.10 | 7.40 | - | 3 | 8.00 | - |
| 2026-05-11 09:00 pm | 3.9 | 56.84 | 51.51 | 33.80 | 86.10 | 7.20 | - | 2 | 8.00 | - |
| 2026-05-11 08:45 pm | 4.3 | 57.02 | 51.45 | 33.80 | 87.60 | 7.30 | - | 2 | 8.00 | - |
| 2026-05-11 08:30 pm | 4.3 | 55.94 | 51.66 | 33.90 | 79.30 | 6.70 | - | 2 | 8.00 | - |
| 2026-05-11 08:15 pm | 4.3 | 55.58 | 51.74 | 34.00 | 73.70 | 6.30 | - | 3 | 7.90 | - |
| 2026-05-11 08:00 pm | 4.3 | 55.94 | 51.63 | 33.90 | 77.70 | 6.60 | - | 2 | 8.00 | - |
| 2026-05-11 07:45 pm | 4.3 | 56.12 | 51.53 | 33.80 | 82.30 | 7.00 | - | 2 | 8.00 | - |
| 2026-05-11 07:30 pm | 4.3 | 56.48 | 51.48 | 33.80 | 86.30 | 7.30 | - | 1 | 8.00 | - |
| 2026-05-11 07:15 pm | 4.3 | 57.38 | 51.35 | 33.70 | 92.30 | 7.70 | - | 4 | 8.10 | - |
| 2026-05-11 07:00 pm | 4.3 | 57.38 | 51.33 | 33.70 | 94.40 | 7.90 | - | 2 | 8.10 | - |
| 2026-05-11 06:45 pm | 3.9 | 57.92 | 51.31 | 33.70 | 98.00 | 8.10 | - | 1 | 8.10 | - |
| 2026-05-11 06:30 pm | 3.9 | 58.10 | 51.31 | 33.70 | 99.10 | 8.20 | - | 2 | 8.10 | - |
| 2026-05-11 06:15 pm | 3.6 | 58.46 | 51.46 | 33.80 | 103.30 | 8.50 | - | 2 | 8.10 | - |
| 2026-05-11 06:00 pm | 3.6 | 59.72 | 51.32 | 33.70 | 111.70 | 9.10 | - | 2 | 8.20 | - |
| 2026-05-11 05:45 pm | 3.6 | 59.72 | 51.28 | 33.70 | 111.20 | 9.10 | - | 2 | 8.20 | - |
| 2026-05-11 05:30 pm | 3.3 | 59.72 | 51.28 | 33.70 | 111.60 | 9.10 | - | 2 | 8.20 | - |
| 2026-05-11 05:15 pm | 3.0 | 59.72 | 51.27 | 33.70 | 111.10 | 9.00 | - | 2 | 8.20 | - |
| 2026-05-11 05:00 pm | 3.0 | 59.72 | 51.28 | 33.70 | 110.30 | 9.00 | - | 2 | 8.20 | - |
| 2026-05-11 04:45 pm | 2.6 | 59.72 | 51.27 | 33.70 | 110.90 | 9.00 | - | 2 | 8.20 | - |
| 2026-05-11 04:30 pm | 2.6 | 59.72 | 51.26 | 33.70 | 109.50 | 8.90 | - | 2 | 8.10 | - |
| 2026-05-11 04:15 pm | 2.3 | 59.90 | 51.20 | 33.70 | 104.70 | 8.50 | - | 2 | 8.10 | - |
| 2026-05-11 04:00 pm | 2.0 | 59.90 | 51.18 | 33.60 | 101.30 | 8.20 | - | 3 | 8.10 | - |
| 2026-05-11 03:45 pm | 2.0 | 59.90 | 51.09 | 33.60 | 92.20 | 7.50 | - | 2 | 8.00 | - |
| 2026-05-11 03:30 pm | 1.6 | 60.26 | 50.93 | 33.50 | 84.20 | 6.80 | - | 4 | 8.00 | - |
| 2026-05-11 03:15 pm | 1.3 | 61.52 | 50.79 | 33.40 | 81.80 | 6.50 | - | 6 | 8.00 | - |
| 2026-05-11 03:00 pm | 1.3 | 61.88 | 50.78 | 33.40 | 86.00 | 6.80 | - | 6 | 8.00 | - |
| 2026-05-11 02:45 pm | 1.0 | 61.88 | 50.79 | 33.40 | 86.80 | 6.90 | - | 6 | 8.10 | - |
| 2026-05-11 02:30 pm | 1.0 | 62.06 | 50.79 | 33.40 | 88.10 | 7.00 | - | 6 | 8.10 | - |
| 2026-05-11 02:15 pm | 0.7 | 62.06 | 50.78 | 33.40 | 71.90 | 5.70 | - | 5 | 8.00 | - |
| 2026-05-11 02:00 pm | 0.7 | 62.24 | 50.77 | 33.40 | 78.80 | 6.30 | - | 7 | 8.00 | - |
| 2026-05-11 01:45 pm | 0.7 | 62.24 | 50.80 | 33.40 | 84.00 | 6.70 | - | 6 | 8.00 | - |
| 2026-05-11 01:30 pm | 0.7 | 62.24 | 50.76 | 33.40 | 81.80 | 6.50 | - | 5 | 8.00 | - |
| 2026-05-11 01:15 pm | 0.3 | 62.06 | 50.78 | 33.40 | 79.90 | 6.40 | - | 4 | 8.00 | - |
| 2026-05-11 01:00 pm | 0.3 | 62.24 | 50.78 | 33.40 | 83.80 | 6.70 | - | 6 | 8.00 | - |
| 2026-05-11 12:45 pm | 0.3 | 62.06 | 50.76 | 33.40 | 85.10 | 6.80 | - | 5 | 8.00 | - |
| 2026-05-11 12:30 pm | 0.3 | 62.06 | 50.77 | 33.40 | 83.70 | 6.70 | - | 3 | 8.00 | - |
| 2026-05-11 12:15 pm | 0.3 | 61.88 | 50.77 | 33.40 | 79.40 | 6.30 | - | 3 | 8.00 | - |
| 2026-05-11 12:00 pm | 0.7 | 62.06 | 50.80 | 33.40 | 79.50 | 6.30 | - | 3 | 8.00 | - |
| 2026-05-11 11:45 am | 0.7 | 61.88 | 50.79 | 33.40 | 83.50 | 6.60 | - | 3 | 8.00 | - |
| 2026-05-11 11:30 am | 0.7 | 61.88 | 50.81 | 33.40 | 85.80 | 6.80 | - | 3 | 8.00 | - |
| 2026-05-11 11:15 am | 1.0 | 61.70 | 50.80 | 33.40 | 86.30 | 6.90 | - | 4 | 8.00 | - |
| 2026-05-11 11:00 am | 1.0 | 61.34 | 50.83 | 33.40 | 86.90 | 7.00 | - | 3 | 8.00 | - |
| 2026-05-11 10:45 am | 1.3 | 61.16 | 50.88 | 33.40 | 88.10 | 7.10 | - | 4 | 8.10 | - |
| 2026-05-11 10:30 am | 1.3 | 60.80 | 50.92 | 33.50 | 90.00 | 7.30 | - | 3 | 8.10 | - |
| 2026-05-11 10:15 am | 1.6 | 60.62 | 50.94 | 33.50 | 89.80 | 7.30 | - | 3 | 8.10 | - |
| 2026-05-11 10:00 am | 2.0 | 60.26 | 50.98 | 33.50 | 90.10 | 7.30 | - | 3 | 8.10 | - |
| 2026-05-11 09:45 am | 2.0 | 59.72 | 51.06 | 33.50 | 90.00 | 7.30 | - | 3 | 8.10 | - |
| 2026-05-11 09:30 am | 2.3 | 59.36 | 51.12 | 33.60 | 89.20 | 7.30 | - | 3 | 8.10 | - |
| 2026-05-11 09:15 am | 2.3 | 59.00 | 51.17 | 33.60 | 88.50 | 7.30 | - | 2 | 8.10 | - |
| 2026-05-11 09:00 am | 2.6 | 58.82 | 51.17 | 33.60 | 88.00 | 7.20 | - | 2 | 8.10 | - |
| 2026-05-11 08:45 am | 2.6 | 58.82 | 51.18 | 33.60 | 88.10 | 7.20 | - | 3 | 8.10 | - |
| 2026-05-11 08:30 am | 3.0 | 58.64 | 51.19 | 33.60 | 86.20 | 7.10 | - | 3 | 8.00 | - |
| 2026-05-11 08:15 am | 3.0 | 58.64 | 51.22 | 33.70 | 85.50 | 7.00 | - | 3 | 8.00 | - |
| 2026-05-11 08:00 am | 3.3 | 58.28 | 51.33 | 33.70 | 81.50 | 6.70 | - | 4 | 8.00 | - |
| 2026-05-11 07:45 am | 3.3 | 57.74 | 51.33 | 33.70 | 77.70 | 6.50 | - | 3 | 8.00 | - |
| 2026-05-11 07:30 am | 3.3 | 57.56 | 51.35 | 33.70 | 74.20 | 6.20 | - | 4 | 8.00 | - |
| 2026-05-11 07:15 am | 3.6 | 54.86 | 51.66 | 33.90 | 63.60 | 5.50 | - | 2 | 7.90 | - |
| 2026-05-11 07:00 am | 3.6 | 53.96 | 51.83 | 34.00 | 59.20 | 5.10 | - | 1 | 7.80 | - |
| 2026-05-11 06:45 am | 3.6 | 54.68 | 51.77 | 34.00 | 59.10 | 5.10 | - | 1 | 7.80 | - |
| 2026-05-11 06:30 am | 3.6 | 53.96 | 51.85 | 34.00 | 59.50 | 5.20 | - | 2 | 7.80 | - |
| 2026-05-11 06:15 am | 3.6 | 54.14 | 51.81 | 34.00 | 59.00 | 5.10 | - | 1 | 7.80 | - |
| 2026-05-11 06:00 am | 3.6 | 54.32 | 51.81 | 34.00 | 59.70 | 5.20 | - | 2 | 7.80 | - |
| 2026-05-11 05:45 am | 3.6 | 54.68 | 51.80 | 34.00 | 60.10 | 5.20 | - | 1 | 7.80 | - |
| 2026-05-11 05:30 am | 3.6 | 55.04 | 51.76 | 34.00 | 64.50 | 5.50 | - | 1 | 7.90 | - |
| 2026-05-11 05:15 am | 3.3 | 55.58 | 51.54 | 33.80 | 70.00 | 6.00 | - | 2 | 7.90 | - |
| 2026-05-11 05:00 am | 3.3 | 57.02 | 51.66 | 33.90 | 77.20 | 6.50 | - | 1 | 8.00 | - |
| 2026-05-11 04:45 am | 3.3 | 57.74 | 51.60 | 33.90 | 85.30 | 7.10 | - | 2 | 8.00 | - |
| 2026-05-11 04:30 am | 3.3 | 59.18 | 51.35 | 33.80 | 101.00 | 8.30 | - | 2 | 8.10 | - |
| 2026-05-11 04:15 am | 3.0 | 59.54 | 51.24 | 33.70 | 98.20 | 8.00 | - | 2 | 8.10 | - |
| 2026-05-11 04:00 am | 3.0 | 59.54 | 51.20 | 33.70 | 95.40 | 7.80 | - | 2 | 8.10 | - |
| 2026-05-11 03:45 am | 3.0 | 59.72 | 51.06 | 33.60 | 86.10 | 7.00 | - | 2 | 8.10 | - |
| 2026-05-11 03:30 am | 2.6 | 60.08 | 51.01 | 33.50 | 90.30 | 7.30 | - | 2 | 8.10 | - |
| 2026-05-11 03:15 am | 2.6 | 60.26 | 50.96 | 33.50 | 92.50 | 7.50 | - | 2 | 8.10 | - |
| 2026-05-11 03:00 am | 2.6 | 60.44 | 50.97 | 33.50 | 89.80 | 7.30 | - | 3 | 8.10 | - |
| 2026-05-11 02:45 am | 2.6 | 60.44 | 50.98 | 33.50 | 88.30 | 7.10 | - | 2 | 8.10 | - |
| 2026-05-11 02:30 am | 2.6 | 60.44 | 50.99 | 33.50 | 92.30 | 7.50 | - | 2 | 8.10 | - |
| 2026-05-11 02:15 am | 2.3 | 60.44 | 50.98 | 33.50 | 94.70 | 7.70 | - | 3 | 8.10 | - |
| 2026-05-11 02:00 am | 2.3 | 60.44 | 50.98 | 33.50 | 85.10 | 6.90 | - | 2 | 8.10 | - |
Historical data for station EVMC1 are available at the NERRS website.
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