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): | 3.6 ft |
 Ocean Temperature (OTMP): | 52.34 °F |
| Conductivity (COND): | 38.84 mS/cm |
| Salinity (SAL): | 24.70 psu |
| Oxygen Saturation (O2PCT): | 77.1% |
| Oxygen Concentration (O2PPM): | 7.20 ppm |
| Turbidity (TURB): | 7 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-02-21 04:45 am | 3.6 | 53.96 | 39.31 | 25.00 | 71.90 | 6.60 | - | 5 | 7.80 | - |
| 2026-02-21 04:30 am | 3.6 | 54.14 | 39.82 | 25.40 | 73.00 | 6.70 | - | 5 | 7.80 | - |
| 2026-02-21 04:15 am | 3.6 | 53.96 | 38.67 | 24.60 | 82.40 | 7.60 | - | 6 | 7.90 | - |
| 2026-02-21 04:00 am | 3.6 | 53.60 | 37.37 | 23.70 | 80.80 | 7.50 | - | 6 | 7.90 | - |
| 2026-02-21 03:45 am | 3.6 | 53.96 | 38.18 | 24.20 | 83.30 | 7.70 | - | 6 | 7.90 | - |
| 2026-02-21 03:30 am | 3.6 | 54.32 | 39.34 | 25.10 | 84.90 | 7.80 | - | 5 | 7.90 | - |
| 2026-02-21 03:15 am | 3.6 | 54.50 | 39.97 | 25.50 | 87.60 | 8.00 | - | 5 | 7.90 | - |
| 2026-02-21 03:00 am | 3.6 | 54.68 | 40.54 | 25.90 | 89.00 | 8.10 | - | 5 | 7.90 | - |
| 2026-02-21 02:45 am | 3.6 | 54.68 | 40.53 | 25.90 | 89.50 | 8.10 | - | 6 | 7.90 | - |
| 2026-02-21 02:30 am | 3.6 | 54.68 | 40.33 | 25.80 | 91.10 | 8.30 | - | 6 | 7.90 | - |
| 2026-02-21 02:15 am | 3.6 | 54.86 | 40.42 | 25.80 | 91.80 | 8.30 | - | 6 | 8.00 | - |
| 2026-02-21 02:00 am | 3.6 | 54.86 | 40.30 | 25.70 | 92.10 | 8.30 | - | 6 | 8.00 | - |
| 2026-02-21 01:45 am | 3.6 | 54.68 | 39.62 | 25.30 | 92.70 | 8.40 | - | 7 | 8.00 | - |
| 2026-02-21 01:30 am | 3.6 | 54.50 | 38.68 | 24.60 | 94.40 | 8.60 | - | 6 | 8.00 | - |
| 2026-02-21 01:15 am | 3.6 | 54.32 | 38.07 | 24.20 | 95.70 | 8.80 | - | 6 | 8.00 | - |
| 2026-02-21 01:00 am | 3.6 | 54.14 | 37.58 | 23.80 | 97.10 | 8.90 | - | 6 | 8.00 | - |
| 2026-02-21 12:45 am | 3.6 | 54.14 | 36.85 | 23.30 | 98.80 | 9.10 | - | 7 | 8.10 | - |
| 2026-02-21 12:30 am | 3.6 | 53.96 | 36.05 | 22.80 | 101.70 | 9.50 | - | 7 | 8.10 | - |
| 2026-02-21 12:15 am | 3.6 | 53.78 | 35.16 | 22.10 | 103.70 | 9.70 | - | 8 | 8.20 | - |
| 2026-02-21 12:00 am | 3.6 | 53.42 | 34.06 | 21.40 | 106.70 | 10.10 | - | 9 | 8.30 | - |
| 2026-02-20 11:45 pm | 3.6 | 53.06 | 32.86 | 20.50 | 112.90 | 10.80 | - | 10 | 8.40 | - |
| 2026-02-20 11:30 pm | 3.6 | 53.06 | 32.17 | 20.10 | 116.10 | 11.10 | - | 11 | 8.40 | - |
| 2026-02-20 11:15 pm | 3.6 | 52.88 | 31.94 | 19.90 | 119.10 | 11.40 | - | 11 | 8.50 | - |
| 2026-02-20 11:00 pm | 3.6 | 53.06 | 32.32 | 20.20 | 126.00 | 12.00 | - | 12 | 8.50 | - |
| 2026-02-20 10:45 pm | 3.6 | 53.24 | 33.37 | 20.90 | 136.90 | 13.00 | - | 12 | 8.60 | - |
| 2026-02-20 10:30 pm | 3.6 | 53.24 | 34.38 | 21.60 | 146.00 | 13.80 | - | 11 | 8.70 | - |
| 2026-02-20 10:15 pm | 3.6 | 53.24 | 35.93 | 22.70 | 157.90 | 14.80 | - | 10 | 8.80 | - |
| 2026-02-20 10:00 pm | 3.6 | 53.06 | 37.58 | 23.80 | 164.10 | 15.30 | - | 8 | 8.80 | - |
| 2026-02-20 09:45 pm | 3.6 | 52.88 | 38.46 | 24.40 | 158.10 | 14.80 | - | 5 | 8.80 | - |
| 2026-02-20 09:30 pm | 3.6 | 52.88 | 38.77 | 24.60 | 155.30 | 14.50 | - | 6 | 8.70 | - |
| 2026-02-20 09:15 pm | 3.6 | 52.88 | 38.66 | 24.60 | 155.20 | 14.40 | - | 6 | 8.70 | - |
| 2026-02-20 09:00 pm | 3.6 | 53.42 | 38.42 | 24.40 | 161.10 | 14.90 | - | 6 | 8.70 | - |
| 2026-02-20 08:45 pm | 3.6 | 53.60 | 38.50 | 24.50 | 165.40 | 15.30 | - | 5 | 8.70 | - |
| 2026-02-20 08:30 pm | 3.6 | 53.60 | 38.43 | 24.40 | 166.40 | 15.40 | - | 6 | 8.70 | - |
| 2026-02-20 08:15 pm | 3.6 | 53.78 | 38.24 | 24.30 | 169.60 | 15.70 | - | 6 | 8.70 | - |
| 2026-02-20 08:00 pm | 3.6 | 54.14 | 37.84 | 24.00 | 174.00 | 16.00 | - | 5 | 8.80 | - |
| 2026-02-20 07:45 pm | 3.6 | 54.32 | 37.80 | 24.00 | - | - | - | 5 | 8.80 | - |
| 2026-02-20 07:30 pm | 3.6 | 54.32 | 37.75 | 23.90 | - | - | - | 6 | 8.80 | - |
| 2026-02-20 07:15 pm | 3.6 | 54.50 | 37.74 | 23.90 | 173.80 | 15.90 | - | 6 | 8.70 | - |
| 2026-02-20 07:00 pm | 3.6 | 54.68 | 37.70 | 23.90 | 171.00 | 15.70 | - | 6 | 8.70 | - |
| 2026-02-20 06:45 pm | 3.6 | 54.86 | 37.66 | 23.90 | 174.30 | 15.90 | - | 7 | 8.70 | - |
| 2026-02-20 06:30 pm | 3.6 | 55.22 | 37.64 | 23.90 | - | - | - | 6 | 8.70 | - |
| 2026-02-20 06:15 pm | 3.6 | 55.58 | 37.57 | 23.80 | - | - | - | 6 | 8.70 | - |
| 2026-02-20 06:00 pm | 3.6 | 55.76 | 37.51 | 23.80 | - | - | - | 7 | 8.70 | - |
| 2026-02-20 05:45 pm | 3.6 | 56.12 | 37.50 | 23.80 | - | - | - | 7 | 8.70 | - |
| 2026-02-20 05:30 pm | 3.6 | 56.30 | 37.56 | 23.80 | - | - | - | 7 | 8.70 | - |
| 2026-02-20 05:15 pm | 3.6 | 56.66 | 37.59 | 23.90 | - | - | - | 6 | 8.80 | - |
| 2026-02-20 05:00 pm | 3.6 | 56.66 | 37.63 | 23.90 | - | - | - | 6 | 8.70 | - |
| 2026-02-20 04:45 pm | 3.6 | 56.12 | 38.06 | 24.20 | - | - | - | 7 | 8.60 | - |
| 2026-02-20 04:30 pm | 3.6 | 55.40 | 38.57 | 24.50 | 154.60 | 14.00 | - | 6 | 8.40 | - |
| 2026-02-20 04:15 pm | 3.6 | 54.86 | 38.62 | 24.60 | 132.90 | 12.10 | - | 6 | 8.30 | - |
| 2026-02-20 04:00 pm | 3.6 | 54.32 | 38.58 | 24.50 | 117.20 | 10.70 | - | 7 | 8.10 | - |
| 2026-02-20 03:45 pm | 3.6 | 53.96 | 38.00 | 24.10 | 106.80 | 9.90 | - | 6 | 8.10 | - |
| 2026-02-20 03:30 pm | 3.6 | 53.60 | 38.19 | 24.20 | 102.50 | 9.50 | - | 6 | 8.00 | - |
| 2026-02-20 03:15 pm | 3.6 | 53.42 | 37.78 | 24.00 | 96.20 | 8.90 | - | 6 | 8.00 | - |
| 2026-02-20 03:00 pm | 3.6 | 53.42 | 37.61 | 23.80 | 95.40 | 8.90 | - | 6 | 8.00 | - |
| 2026-02-20 02:45 pm | 3.6 | 53.24 | 38.23 | 24.30 | 93.60 | 8.70 | - | 6 | 8.00 | - |
| 2026-02-20 02:30 pm | 3.6 | 53.24 | 38.68 | 24.60 | 95.10 | 8.80 | - | 6 | 8.00 | - |
| 2026-02-20 02:15 pm | 3.6 | 53.24 | 38.87 | 24.70 | 97.10 | 9.00 | - | 6 | 8.00 | - |
| 2026-02-20 02:00 pm | 3.6 | 53.24 | 38.84 | 24.70 | 96.60 | 9.00 | - | 6 | 8.00 | - |
| 2026-02-20 01:45 pm | 3.6 | 53.06 | 38.68 | 24.60 | 95.40 | 8.90 | - | 6 | 8.00 | - |
| 2026-02-20 01:30 pm | 3.6 | 53.06 | 38.59 | 24.50 | 93.70 | 8.70 | - | 7 | 8.00 | - |
| 2026-02-20 01:15 pm | 3.6 | 52.88 | 38.37 | 24.40 | 94.20 | 8.80 | - | 7 | 8.00 | - |
| 2026-02-20 01:00 pm | 3.6 | 52.70 | 37.98 | 24.10 | 92.60 | 8.70 | - | 7 | 8.00 | - |
| 2026-02-20 12:45 pm | 3.6 | 52.34 | 37.55 | 23.80 | 92.00 | 8.70 | - | 8 | 8.00 | - |
| 2026-02-20 12:30 pm | 3.6 | 52.16 | 36.99 | 23.40 | 92.40 | 8.80 | - | 8 | 8.00 | - |
| 2026-02-20 12:15 pm | 3.6 | 51.80 | 36.24 | 22.90 | 92.30 | 8.80 | - | 9 | 8.10 | - |
| 2026-02-20 12:00 pm | 3.6 | 51.62 | 35.61 | 22.40 | 91.60 | 8.80 | - | 10 | 8.10 | - |
| 2026-02-20 11:45 am | 3.6 | 50.90 | 34.66 | 21.70 | 89.60 | 8.70 | - | 11 | 8.20 | - |
| 2026-02-20 11:30 am | 3.6 | 50.18 | 33.99 | 21.30 | 86.70 | 8.50 | - | 12 | 8.20 | - |
| 2026-02-20 11:15 am | 3.6 | 49.46 | 33.67 | 21.00 | 86.60 | 8.60 | - | 13 | 8.30 | - |
| 2026-02-20 11:00 am | 3.6 | 49.28 | 33.65 | 21.00 | 83.50 | 8.30 | - | 13 | 8.30 | - |
| 2026-02-20 10:45 am | 3.6 | 48.74 | 34.23 | 21.40 | 84.60 | 8.50 | - | 13 | 8.30 | - |
| 2026-02-20 10:30 am | 3.6 | 48.56 | 34.23 | 21.40 | 82.50 | 8.30 | - | 13 | 8.30 | - |
| 2026-02-20 10:15 am | 3.6 | 48.38 | 35.02 | 21.90 | 79.50 | 8.00 | - | 12 | 8.30 | - |
| 2026-02-20 10:00 am | 3.6 | 48.20 | 36.25 | 22.80 | 76.80 | 7.70 | - | 9 | 8.30 | - |
| 2026-02-20 09:45 am | 3.6 | 48.56 | 37.36 | 23.60 | 74.50 | 7.40 | - | 7 | 8.30 | - |
| 2026-02-20 09:30 am | 3.6 | 49.28 | 37.75 | 23.80 | 72.80 | 7.10 | - | 8 | 8.30 | - |
| 2026-02-20 09:15 am | 3.6 | 49.28 | 37.64 | 23.80 | 71.50 | 7.00 | - | 9 | 8.30 | - |
| 2026-02-20 09:00 am | 3.6 | 49.46 | 38.19 | 24.10 | 72.40 | 7.10 | - | 7 | 8.20 | - |
| 2026-02-20 08:45 am | 3.6 | 49.28 | 38.48 | 24.30 | 70.10 | 6.80 | - | 9 | 8.20 | - |
| 2026-02-20 08:30 am | 3.6 | 49.10 | 38.32 | 24.20 | 69.40 | 6.80 | - | 8 | 8.20 | - |
| 2026-02-20 08:15 am | 3.6 | 48.74 | 37.89 | 23.90 | 69.30 | 6.80 | - | 8 | 8.20 | - |
| 2026-02-20 08:00 am | 3.6 | 48.74 | 37.84 | 23.90 | 66.60 | 6.60 | - | 9 | 8.20 | - |
| 2026-02-20 07:45 am | 3.6 | 48.92 | 37.99 | 24.00 | 64.60 | 6.30 | - | 10 | 8.20 | - |
| 2026-02-20 07:30 am | 3.6 | 49.10 | 38.22 | 24.20 | 65.30 | 6.40 | - | 8 | 8.20 | - |
| 2026-02-20 07:15 am | 3.6 | 48.92 | 38.10 | 24.10 | 66.20 | 6.50 | - | 8 | 8.20 | - |
| 2026-02-20 07:00 am | 3.6 | 49.10 | 38.11 | 24.10 | 67.60 | 6.60 | - | 8 | 8.20 | - |
| 2026-02-20 06:45 am | 3.6 | 49.28 | 38.00 | 24.00 | 70.20 | 6.90 | - | 7 | 8.20 | - |
| 2026-02-20 06:30 am | 3.6 | 49.28 | 37.80 | 23.90 | 73.80 | 7.20 | - | 6 | 8.10 | - |
| 2026-02-20 06:15 am | 3.6 | 49.82 | 37.85 | 23.90 | 74.30 | 7.20 | - | 7 | 8.10 | - |
| 2026-02-20 06:00 am | 3.6 | 50.36 | 37.96 | 24.00 | 76.40 | 7.40 | - | 6 | 8.10 | - |
Historical data for station EHSC1 are available at the NERRS website.
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