Station EHSC1 - North Marsh, Elkhorn Slough Reserve, CA
Owned and maintained by National Estuarine Research Reserve System
NERRS Water Quality Station
36.835 N 121.738 W (36°50'5" N 121°44'18" 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): | 4.6 ft |
 Ocean Temperature (OTMP): | 57.02 °F |
| Conductivity (COND): | 44.43 mS/cm |
| Salinity (SAL): | 28.70 psu |
| Oxygen Saturation (O2PCT): | 58.5% |
| Oxygen Concentration (O2PPM): | 5.10 ppm |
| Turbidity (TURB): | 5 FTU |
| pH (PH): | 7.90 |
| TIME (PST) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-03 02:45 am | 4.6 | 57.02 | 44.41 | 28.70 | 51.10 | 4.40 | - | 6 | 7.90 | - |
| 2026-01-03 02:30 am | 4.6 | 57.02 | 44.52 | 28.80 | 54.40 | 4.70 | - | 5 | 7.90 | - |
| 2026-01-03 02:15 am | 4.6 | 57.02 | 44.30 | 28.60 | 42.60 | 3.70 | - | 5 | 7.90 | - |
| 2026-01-03 02:00 am | 4.6 | 56.84 | 44.37 | 28.70 | 43.40 | 3.80 | - | 6 | 7.90 | - |
| 2026-01-03 01:45 am | 4.6 | 56.84 | 44.42 | 28.70 | 57.30 | 5.00 | - | 9 | 7.90 | - |
| 2026-01-03 01:30 am | 4.6 | 56.84 | 44.35 | 28.70 | 44.60 | 3.90 | - | 6 | 7.90 | - |
| 2026-01-03 01:15 am | 4.6 | 56.84 | 44.29 | 28.60 | 57.70 | 5.00 | - | 6 | 7.90 | - |
| 2026-01-03 01:00 am | 4.6 | 56.84 | 44.36 | 28.70 | 65.80 | 5.70 | - | 6 | 7.90 | - |
| 2026-01-03 12:45 am | 4.6 | 57.02 | 44.36 | 28.70 | 71.90 | 6.20 | - | 6 | 8.00 | - |
| 2026-01-03 12:30 am | 4.6 | 57.02 | 44.41 | 28.70 | 75.50 | 6.50 | - | 7 | 8.00 | - |
| 2026-01-03 12:15 am | 4.6 | 57.02 | 44.42 | 28.70 | 76.80 | 6.60 | - | 6 | 8.00 | - |
| 2026-01-03 12:00 am | 4.6 | 57.02 | 44.42 | 28.70 | 71.50 | 6.20 | - | 6 | 8.00 | - |
| 2026-01-02 11:45 pm | 4.6 | 57.02 | 44.53 | 28.80 | 76.50 | 6.60 | - | 7 | 8.00 | - |
| 2026-01-02 11:30 pm | 4.6 | 57.20 | 44.57 | 28.80 | 74.50 | 6.40 | - | 6 | 8.00 | - |
| 2026-01-02 11:15 pm | 4.6 | 57.20 | 44.61 | 28.80 | 75.30 | 6.50 | - | 6 | 8.00 | - |
| 2026-01-02 11:00 pm | 4.6 | 57.20 | 44.75 | 28.90 | 77.50 | 6.70 | - | 6 | 8.00 | - |
| 2026-01-02 10:45 pm | 4.3 | 57.20 | 44.76 | 28.90 | 81.90 | 7.10 | - | 6 | 8.00 | - |
| 2026-01-02 10:30 pm | 4.3 | 57.38 | 44.80 | 29.00 | 81.10 | 7.00 | - | 8 | 8.00 | - |
| 2026-01-02 10:15 pm | 4.3 | 57.38 | 44.81 | 29.00 | 75.70 | 6.50 | - | 6 | 8.00 | - |
| 2026-01-02 10:00 pm | 4.3 | 57.38 | 44.86 | 29.00 | 79.10 | 6.80 | - | 5 | 8.10 | - |
| 2026-01-02 09:45 pm | 4.3 | 57.38 | 45.04 | 29.20 | 65.30 | 5.60 | - | 6 | 8.00 | - |
| 2026-01-02 09:30 pm | 4.3 | 57.56 | 45.00 | 29.10 | 63.60 | 5.50 | - | 5 | 8.00 | - |
| 2026-01-02 09:15 pm | 4.3 | 57.56 | 45.06 | 29.20 | 85.20 | 7.30 | - | 6 | 8.10 | - |
| 2026-01-02 09:00 pm | 4.3 | 57.56 | 45.06 | 29.20 | 83.80 | 7.20 | - | 6 | 8.10 | - |
| 2026-01-02 08:45 pm | 4.3 | 57.56 | 45.03 | 29.10 | 83.70 | 7.20 | - | 6 | 8.10 | - |
| 2026-01-02 08:30 pm | 4.3 | 57.56 | 45.03 | 29.10 | 88.90 | 7.60 | - | 5 | 8.10 | - |
| 2026-01-02 08:15 pm | 4.3 | 57.56 | 44.99 | 29.10 | 85.40 | 7.30 | - | 5 | 8.10 | - |
| 2026-01-02 08:00 pm | 4.3 | 57.56 | 44.97 | 29.10 | 84.40 | 7.20 | - | 5 | 8.10 | - |
| 2026-01-02 07:45 pm | 4.3 | 57.56 | 44.93 | 29.10 | 95.30 | 8.20 | - | 5 | 8.10 | - |
| 2026-01-02 07:30 pm | 4.3 | 57.38 | 44.90 | 29.00 | 96.80 | 8.30 | - | 6 | 8.10 | - |
| 2026-01-02 07:15 pm | 4.3 | 57.38 | 44.83 | 29.00 | 101.30 | 8.70 | - | 6 | 8.20 | - |
| 2026-01-02 07:00 pm | 4.6 | 57.38 | 44.85 | 29.00 | 99.80 | 8.60 | - | 11 | 8.20 | - |
| 2026-01-02 06:45 pm | 4.6 | 57.20 | 44.74 | 28.90 | 107.40 | 9.20 | - | 10 | 8.20 | - |
| 2026-01-02 06:30 pm | 4.6 | 57.20 | 44.74 | 28.90 | 106.40 | 9.20 | - | 10 | 8.20 | - |
| 2026-01-02 06:15 pm | 4.6 | 57.02 | 44.63 | 28.90 | 102.50 | 8.90 | - | 10 | 8.10 | - |
| 2026-01-02 06:00 pm | 4.6 | 57.02 | 44.67 | 28.90 | 106.50 | 9.20 | - | 10 | 8.10 | - |
| 2026-01-02 05:45 pm | 4.6 | 57.20 | 44.73 | 28.90 | 107.70 | 9.30 | - | 10 | 8.20 | - |
| 2026-01-02 05:30 pm | 4.6 | 57.20 | 44.76 | 29.00 | 106.80 | 9.20 | - | 10 | 8.20 | - |
| 2026-01-02 05:15 pm | 4.6 | 57.38 | 44.73 | 28.90 | 110.70 | 9.50 | - | 8 | 8.20 | - |
| 2026-01-02 05:00 pm | 4.6 | 57.38 | 44.77 | 29.00 | 115.80 | 10.00 | - | 10 | 8.20 | - |
| 2026-01-02 04:45 pm | 4.6 | 57.56 | 44.86 | 29.00 | 117.60 | 10.10 | - | 9 | 8.20 | - |
| 2026-01-02 04:30 pm | 4.6 | 57.56 | 44.86 | 29.00 | 113.30 | 9.70 | - | 10 | 8.20 | - |
| 2026-01-02 04:15 pm | 4.6 | 57.56 | 44.89 | 29.00 | 109.00 | 9.40 | - | 10 | 8.10 | - |
| 2026-01-02 04:00 pm | 4.6 | 57.56 | 44.90 | 29.10 | 108.40 | 9.30 | - | 9 | 8.10 | - |
| 2026-01-02 03:45 pm | 4.6 | 57.56 | 44.88 | 29.00 | 113.40 | 9.70 | - | 10 | 8.10 | - |
| 2026-01-02 03:30 pm | 4.6 | 57.56 | 44.90 | 29.10 | 111.80 | 9.60 | - | 10 | 8.10 | - |
| 2026-01-02 03:15 pm | 4.6 | 57.56 | 44.88 | 29.00 | 108.70 | 9.30 | - | 11 | 8.10 | - |
| 2026-01-02 03:00 pm | 4.6 | 57.56 | 44.88 | 29.00 | 111.70 | 9.60 | - | 9 | 8.10 | - |
| 2026-01-02 02:45 pm | 4.6 | 57.38 | 44.90 | 29.10 | 103.80 | 8.90 | - | 10 | 8.10 | - |
| 2026-01-02 02:30 pm | 4.9 | 57.38 | 44.92 | 29.10 | 102.90 | 8.80 | - | 10 | 8.10 | - |
| 2026-01-02 02:15 pm | 4.9 | 57.38 | 45.00 | 29.10 | 95.80 | 8.20 | - | 10 | 8.10 | - |
| 2026-01-02 02:00 pm | 4.9 | 57.38 | 45.10 | 29.20 | 96.00 | 8.20 | - | 8 | 8.10 | - |
| 2026-01-02 01:45 pm | 4.9 | 57.38 | 45.03 | 29.10 | 100.20 | 8.60 | - | 9 | 8.10 | - |
| 2026-01-02 01:30 pm | 4.9 | 57.38 | 45.01 | 29.10 | 89.50 | 7.70 | - | 11 | 8.00 | - |
| 2026-01-02 01:15 pm | 4.9 | 57.20 | 44.99 | 29.10 | 88.30 | 7.60 | - | 10 | 8.00 | - |
| 2026-01-02 01:00 pm | 4.9 | 57.20 | 44.78 | 29.00 | 90.20 | 7.80 | - | 9 | 8.00 | - |
| 2026-01-02 12:45 pm | 4.9 | 57.02 | 44.95 | 29.10 | 87.20 | 7.50 | - | 10 | 8.00 | - |
| 2026-01-02 12:30 pm | 4.9 | 57.02 | 44.96 | 29.10 | 90.40 | 7.80 | - | 10 | 8.00 | - |
| 2026-01-02 12:15 pm | 4.9 | 57.02 | 44.93 | 29.10 | 97.20 | 8.40 | - | 8 | 8.00 | - |
| 2026-01-02 12:00 pm | 4.9 | 56.84 | 44.92 | 29.10 | 99.00 | 8.60 | - | 10 | 8.00 | - |
| 2026-01-02 11:45 am | 4.9 | 56.84 | 44.91 | 29.00 | 93.90 | 8.10 | - | 9 | 8.00 | - |
| 2026-01-02 11:30 am | 4.9 | 56.66 | 44.88 | 29.00 | 97.70 | 8.50 | - | 9 | 8.00 | - |
| 2026-01-02 11:15 am | 4.9 | 56.66 | 44.80 | 29.00 | 96.90 | 8.40 | - | 9 | 8.00 | - |
| 2026-01-02 11:00 am | 4.9 | 56.66 | 44.82 | 29.00 | 91.70 | 8.00 | - | 9 | 8.00 | - |
| 2026-01-02 10:45 am | 4.9 | 56.66 | 44.86 | 29.00 | 91.40 | 7.90 | - | 10 | 8.00 | - |
| 2026-01-02 10:30 am | 4.9 | 56.66 | 44.83 | 29.00 | 94.00 | 8.20 | - | 9 | 8.00 | - |
| 2026-01-02 10:15 am | 4.9 | 56.66 | 44.76 | 28.90 | 92.80 | 8.10 | - | 9 | 8.00 | - |
| 2026-01-02 10:00 am | 4.9 | 56.30 | 44.65 | 28.90 | 86.60 | 7.50 | - | 9 | 8.00 | - |
| 2026-01-02 09:45 am | 4.9 | 56.48 | 44.66 | 28.90 | 91.20 | 7.90 | - | 11 | 8.00 | - |
| 2026-01-02 09:30 am | 4.6 | 56.30 | 44.61 | 28.80 | 83.90 | 7.30 | - | 10 | 8.00 | - |
| 2026-01-02 09:15 am | 4.6 | 56.30 | 44.51 | 28.80 | 82.20 | 7.20 | - | 10 | 8.00 | - |
| 2026-01-02 09:00 am | 4.6 | 55.94 | 44.41 | 28.70 | 83.10 | 7.30 | - | 10 | 7.90 | - |
| 2026-01-02 08:45 am | 4.3 | 55.76 | 44.27 | 28.60 | 81.60 | 7.20 | - | 62 | 7.90 | - |
| 2026-01-02 08:30 am | 4.3 | 55.58 | 44.11 | 28.50 | 77.50 | 6.80 | - | 10 | 7.90 | - |
| 2026-01-02 08:15 am | 4.3 | 55.22 | 43.99 | 28.40 | 78.40 | 6.90 | - | 9 | 7.90 | - |
| 2026-01-02 08:00 am | 4.3 | 55.04 | 43.89 | 28.30 | 72.70 | 6.50 | - | 10 | 7.90 | - |
| 2026-01-02 07:45 am | 3.9 | 54.68 | 43.84 | 28.30 | 73.90 | 6.60 | - | 10 | 7.90 | - |
| 2026-01-02 07:30 am | 3.9 | 54.68 | 43.82 | 28.20 | 70.20 | 6.30 | - | 9 | 7.80 | - |
| 2026-01-02 07:15 am | 3.9 | 54.68 | 43.89 | 28.30 | 72.70 | 6.50 | - | 10 | 7.90 | - |
| 2026-01-02 07:00 am | 3.9 | 54.86 | 43.89 | 28.30 | 70.40 | 6.30 | - | 10 | 7.90 | - |
| 2026-01-02 06:45 am | 3.9 | 54.86 | 43.89 | 28.30 | 70.90 | 6.30 | - | 9 | 7.90 | - |
| 2026-01-02 06:30 am | 3.9 | 54.86 | 43.90 | 28.30 | 73.20 | 6.50 | - | 9 | 7.90 | - |
| 2026-01-02 06:15 am | 3.9 | 54.86 | 43.94 | 28.30 | 70.20 | 6.20 | - | 10 | 7.90 | - |
| 2026-01-02 06:00 am | 3.9 | 55.04 | 43.96 | 28.30 | 69.80 | 6.20 | - | 9 | 7.90 | - |
| 2026-01-02 05:45 am | 3.9 | 55.04 | 43.98 | 28.40 | 68.30 | 6.10 | - | 14 | 7.90 | - |
| 2026-01-02 05:30 am | 3.9 | 55.22 | 44.00 | 28.40 | 65.70 | 5.80 | - | 14 | 7.80 | - |
| 2026-01-02 05:15 am | 3.9 | 55.22 | 44.03 | 28.40 | 66.40 | 5.90 | - | 14 | 7.90 | - |
| 2026-01-02 05:00 am | 3.9 | 55.40 | 44.05 | 28.40 | 66.90 | 5.90 | - | 13 | 7.90 | - |
| 2026-01-02 04:45 am | 3.9 | 55.58 | 44.10 | 28.50 | 68.70 | 6.10 | - | 12 | 7.90 | - |
| 2026-01-02 04:30 am | 3.9 | 55.76 | 44.13 | 28.50 | 68.80 | 6.10 | - | 13 | 7.90 | - |
| 2026-01-02 04:15 am | 3.9 | 55.94 | 44.27 | 28.60 | 64.90 | 5.70 | - | 27 | 7.90 | - |
| 2026-01-02 04:00 am | 3.9 | 56.12 | 44.08 | 28.40 | 58.90 | 5.20 | - | 12 | 7.90 | - |
Historical data for station EHSC1 are available at the NERRS website.
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