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): | 5.2 ft |
 Ocean Temperature (OTMP): | 56.30 °F |
| Conductivity (COND): | 44.50 mS/cm |
| Salinity (SAL): | 28.70 psu |
| Oxygen Saturation (O2PCT): | 49.3% |
| Oxygen Concentration (O2PPM): | 4.30 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-05 02:45 am | 5.2 | 56.30 | 44.53 | 28.80 | 40.00 | 3.50 | - | 6 | 7.90 | - |
| 2026-01-05 02:30 am | 5.2 | 56.48 | 44.56 | 28.80 | 52.00 | 4.50 | - | 6 | 7.90 | - |
| 2026-01-05 02:15 am | 5.2 | 56.48 | 44.59 | 28.80 | 48.00 | 4.20 | - | 6 | 7.90 | - |
| 2026-01-05 02:00 am | 5.2 | 56.66 | 44.65 | 28.90 | 46.80 | 4.10 | - | 6 | 7.90 | - |
| 2026-01-05 01:45 am | 5.2 | 56.66 | 44.62 | 28.80 | 51.30 | 4.50 | - | 5 | 7.90 | - |
| 2026-01-05 01:30 am | 5.2 | 56.66 | 44.68 | 28.90 | 55.20 | 4.80 | - | 5 | 8.00 | - |
| 2026-01-05 01:15 am | 5.2 | 56.66 | 44.64 | 28.90 | 53.00 | 4.60 | - | 6 | 8.00 | - |
| 2026-01-05 01:00 am | 5.2 | 56.66 | 44.66 | 28.90 | 44.00 | 3.80 | - | 6 | 8.00 | - |
| 2026-01-05 12:45 am | 5.2 | 56.84 | 44.71 | 28.90 | 59.20 | 5.10 | - | 5 | 8.00 | - |
| 2026-01-05 12:30 am | 5.2 | 56.84 | 44.71 | 28.90 | 71.10 | 6.20 | - | 5 | 8.00 | - |
| 2026-01-05 12:15 am | 5.2 | 56.84 | 44.70 | 28.90 | 80.90 | 7.00 | - | 6 | 8.00 | - |
| 2026-01-05 12:00 am | 5.2 | 56.84 | 44.73 | 28.90 | 76.90 | 6.70 | - | 5 | 8.00 | - |
| 2026-01-04 11:45 pm | 5.2 | 56.84 | 44.05 | 28.40 | 72.90 | 6.30 | - | 5 | 7.90 | - |
| 2026-01-04 11:30 pm | 5.2 | 57.02 | 44.65 | 28.90 | 78.50 | 6.80 | - | 6 | 8.00 | - |
| 2026-01-04 11:15 pm | 5.2 | 57.02 | 44.67 | 28.90 | 80.30 | 6.90 | - | 6 | 8.00 | - |
| 2026-01-04 11:00 pm | 5.2 | 57.02 | 44.60 | 28.80 | 76.50 | 6.60 | - | 6 | 8.00 | - |
| 2026-01-04 10:45 pm | 5.2 | 57.02 | 44.50 | 28.80 | 77.50 | 6.70 | - | 6 | 8.00 | - |
| 2026-01-04 10:30 pm | 5.2 | 57.02 | 44.30 | 28.60 | 80.10 | 6.90 | - | 5 | 8.00 | - |
| 2026-01-04 10:15 pm | 5.2 | 57.02 | 44.19 | 28.50 | 69.90 | 6.10 | - | 6 | 8.00 | - |
| 2026-01-04 10:00 pm | 5.2 | 57.02 | 44.15 | 28.50 | 74.20 | 6.40 | - | 6 | 8.00 | - |
| 2026-01-04 09:45 pm | 5.2 | 57.02 | 44.08 | 28.50 | 82.80 | 7.20 | - | 8 | 8.00 | - |
| 2026-01-04 09:30 pm | 5.2 | 57.02 | 41.21 | 26.40 | 82.20 | 7.20 | - | 8 | 8.00 | - |
| 2026-01-04 09:15 pm | 5.2 | 56.84 | 41.29 | 26.50 | 83.00 | 7.30 | - | 8 | 8.00 | - |
| 2026-01-04 09:00 pm | 5.2 | 56.84 | 37.06 | 23.50 | 78.80 | 7.10 | - | 8 | 8.00 | - |
| 2026-01-04 08:45 pm | 5.2 | 56.66 | 43.36 | 27.90 | 82.00 | 7.20 | - | 8 | 8.00 | - |
| 2026-01-04 08:30 pm | 5.2 | 56.84 | 43.40 | 28.00 | 87.00 | 7.60 | - | 8 | 8.00 | - |
| 2026-01-04 08:15 pm | 5.2 | 56.84 | 43.32 | 27.90 | 90.20 | 7.90 | - | 8 | 8.00 | - |
| 2026-01-04 08:00 pm | 5.2 | 56.66 | 43.08 | 27.70 | 93.60 | 8.20 | - | 8 | 8.00 | - |
| 2026-01-04 07:45 pm | 5.2 | 56.66 | 43.18 | 27.80 | 95.60 | 8.30 | - | 8 | 8.10 | - |
| 2026-01-04 07:30 pm | 5.2 | 56.84 | 43.10 | 27.80 | 96.30 | 8.40 | - | 8 | 8.00 | - |
| 2026-01-04 07:15 pm | 5.2 | 56.84 | 43.10 | 27.80 | 96.00 | 8.40 | - | 9 | 8.00 | - |
| 2026-01-04 07:00 pm | 5.2 | 57.02 | 43.16 | 27.80 | 96.30 | 8.40 | - | 10 | 8.10 | - |
| 2026-01-04 06:45 pm | 5.6 | 57.02 | 43.17 | 27.80 | 97.20 | 8.50 | - | 8 | 8.10 | - |
| 2026-01-04 06:30 pm | 5.6 | 57.02 | 43.18 | 27.80 | 100.80 | 8.80 | - | 8 | 8.10 | - |
| 2026-01-04 06:15 pm | 5.6 | 57.02 | 43.22 | 27.80 | 101.10 | 8.80 | - | 8 | 8.10 | - |
| 2026-01-04 06:00 pm | 5.6 | 57.20 | 43.22 | 27.80 | 102.50 | 8.90 | - | 9 | 8.10 | - |
| 2026-01-04 05:45 pm | 5.6 | 57.02 | 43.20 | 27.80 | 111.80 | 9.70 | - | 19 | 8.10 | - |
| 2026-01-04 05:30 pm | 5.6 | 57.02 | 43.15 | 27.80 | 113.80 | 9.90 | - | 9 | 8.10 | - |
| 2026-01-04 05:15 pm | 5.6 | 57.02 | 43.15 | 27.80 | 113.80 | 9.90 | - | 10 | 8.10 | - |
| 2026-01-04 05:00 pm | 5.6 | 57.02 | 43.13 | 27.80 | 117.40 | 10.20 | - | 8 | 8.10 | - |
| 2026-01-04 04:45 pm | 5.6 | 57.02 | 43.19 | 27.80 | 112.30 | 9.80 | - | 7 | 8.10 | - |
| 2026-01-04 04:30 pm | 5.6 | 57.20 | 43.28 | 27.90 | 108.50 | 9.40 | - | 8 | 8.10 | - |
| 2026-01-04 04:15 pm | 5.6 | 57.20 | 43.33 | 27.90 | 110.00 | 9.50 | - | 7 | 8.10 | - |
| 2026-01-04 04:00 pm | 5.6 | 57.38 | 43.51 | 28.10 | 111.20 | 9.60 | - | 7 | 8.10 | - |
| 2026-01-04 03:45 pm | 5.6 | 57.56 | 43.80 | 28.30 | 112.90 | 9.70 | - | 7 | 8.10 | - |
| 2026-01-04 03:30 pm | 5.6 | 57.56 | 43.89 | 28.30 | 106.70 | 9.20 | - | 8 | 8.10 | - |
| 2026-01-04 03:15 pm | 5.6 | 57.56 | 43.90 | 28.30 | 103.70 | 8.90 | - | 11 | 8.10 | - |
| 2026-01-04 03:00 pm | 5.6 | 57.38 | 43.93 | 28.40 | 103.90 | 9.00 | - | 9 | 8.10 | - |
| 2026-01-04 02:45 pm | 5.6 | 57.38 | 43.93 | 28.40 | 100.50 | 8.70 | - | 8 | 8.00 | - |
| 2026-01-04 02:30 pm | 5.6 | 57.38 | 43.95 | 28.40 | 101.00 | 8.70 | - | 19 | 8.00 | - |
| 2026-01-04 02:15 pm | 5.6 | 57.20 | 43.95 | 28.40 | 102.60 | 8.90 | - | 8 | 8.10 | - |
| 2026-01-04 02:00 pm | 5.6 | 57.02 | 38.84 | 24.70 | 91.40 | 8.10 | - | 8 | 8.00 | - |
| 2026-01-04 01:45 pm | 5.6 | 57.02 | 43.96 | 28.40 | 89.80 | 7.80 | - | 8 | 8.00 | - |
| 2026-01-04 01:30 pm | 5.6 | 57.02 | 43.95 | 28.40 | 92.20 | 8.00 | - | 10 | 8.00 | - |
| 2026-01-04 01:15 pm | 5.6 | 57.02 | 43.96 | 28.40 | 90.30 | 7.80 | - | 7 | 8.00 | - |
| 2026-01-04 01:00 pm | 5.6 | 56.84 | 43.94 | 28.40 | 88.00 | 7.60 | - | 7 | 8.00 | - |
| 2026-01-04 12:45 pm | 5.6 | 56.84 | 36.73 | 23.30 | 79.40 | 7.10 | - | 7 | 8.00 | - |
| 2026-01-04 12:30 pm | 5.6 | 56.84 | 43.93 | 28.30 | 79.20 | 6.90 | - | 7 | 8.00 | - |
| 2026-01-04 12:15 pm | 5.6 | 56.84 | 43.92 | 28.30 | 82.50 | 7.20 | - | 7 | 8.00 | - |
| 2026-01-04 12:00 pm | 5.6 | 56.84 | 43.85 | 28.30 | 77.40 | 6.70 | - | 7 | 8.00 | - |
| 2026-01-04 11:45 am | 5.6 | 56.84 | 43.75 | 28.20 | 81.00 | 7.00 | - | 8 | 8.00 | - |
| 2026-01-04 11:30 am | 5.6 | 56.84 | 43.74 | 28.20 | 84.20 | 7.30 | - | 7 | 8.00 | - |
| 2026-01-04 11:15 am | 5.6 | 56.84 | 43.75 | 28.20 | 85.90 | 7.50 | - | 8 | 8.00 | - |
| 2026-01-04 11:00 am | 5.6 | 56.66 | 43.65 | 28.10 | 84.70 | 7.40 | - | 8 | 8.00 | - |
| 2026-01-04 10:45 am | 5.6 | 56.48 | 43.55 | 28.10 | 82.90 | 7.20 | - | 8 | 8.00 | - |
| 2026-01-04 10:30 am | 5.2 | 56.48 | 43.40 | 28.00 | 83.60 | 7.30 | - | 8 | 8.00 | - |
| 2026-01-04 10:15 am | 5.2 | 56.30 | 43.37 | 27.90 | 82.90 | 7.30 | - | 8 | 8.00 | - |
| 2026-01-04 10:00 am | 5.2 | 56.12 | 43.34 | 27.90 | 82.90 | 7.30 | - | 7 | 8.00 | - |
| 2026-01-04 09:45 am | 5.2 | 56.12 | 43.24 | 27.80 | 82.60 | 7.30 | - | 7 | 8.00 | - |
| 2026-01-04 09:30 am | 5.2 | 56.12 | 43.37 | 27.90 | 82.50 | 7.30 | - | 7 | 8.00 | - |
| 2026-01-04 09:15 am | 5.2 | 56.12 | 43.48 | 28.00 | 82.20 | 7.20 | - | 7 | 8.00 | - |
| 2026-01-04 09:00 am | 5.2 | 56.12 | 43.56 | 28.10 | 82.20 | 7.20 | - | 7 | 8.00 | - |
| 2026-01-04 08:45 am | 5.2 | 56.12 | 43.75 | 28.20 | 70.40 | 6.20 | - | 7 | 8.00 | - |
| 2026-01-04 08:30 am | 4.9 | 56.12 | 43.88 | 28.30 | 55.30 | 4.80 | - | 7 | 8.00 | - |
| 2026-01-04 08:15 am | 4.9 | 56.12 | 44.04 | 28.40 | 66.20 | 5.80 | - | 7 | 7.90 | - |
| 2026-01-04 08:00 am | 4.9 | 56.30 | 44.18 | 28.50 | 57.70 | 5.00 | - | 7 | 7.90 | - |
| 2026-01-04 07:45 am | 4.9 | 56.30 | 44.19 | 28.50 | 65.00 | 5.70 | - | 7 | 7.90 | - |
| 2026-01-04 07:30 am | 4.9 | 56.30 | 44.21 | 28.50 | 64.60 | 5.60 | - | 7 | 8.00 | - |
| 2026-01-04 07:15 am | 4.9 | 56.30 | 44.23 | 28.60 | 55.60 | 4.90 | - | 7 | 8.00 | - |
| 2026-01-04 07:00 am | 4.9 | 56.30 | 44.17 | 28.50 | 55.50 | 4.80 | - | 7 | 8.00 | - |
| 2026-01-04 06:45 am | 4.9 | 56.30 | 44.23 | 28.60 | 71.60 | 6.30 | - | 7 | 8.00 | - |
| 2026-01-04 06:30 am | 4.9 | 56.48 | 44.28 | 28.60 | 36.00 | 3.10 | - | 7 | 7.90 | - |
| 2026-01-04 06:15 am | 4.9 | 56.48 | 44.33 | 28.60 | 38.30 | 3.30 | - | 7 | 7.90 | - |
| 2026-01-04 06:00 am | 4.9 | 56.48 | 44.35 | 28.60 | 48.90 | 4.30 | - | 7 | 8.00 | - |
| 2026-01-04 05:45 am | 4.9 | 56.48 | 44.49 | 28.70 | 46.30 | 4.00 | - | 7 | 8.00 | - |
| 2026-01-04 05:30 am | 4.9 | 56.48 | 44.59 | 28.80 | 46.50 | 4.00 | - | 7 | 7.90 | - |
| 2026-01-04 05:15 am | 4.9 | 56.66 | 44.65 | 28.90 | 51.80 | 4.50 | - | 8 | 7.90 | - |
| 2026-01-04 05:00 am | 4.9 | 56.66 | 44.65 | 28.90 | 49.10 | 4.30 | - | 9 | 7.90 | - |
| 2026-01-04 04:45 am | 4.9 | 56.84 | 44.65 | 28.90 | 60.40 | 5.20 | - | 8 | 7.90 | - |
| 2026-01-04 04:30 am | 4.9 | 56.84 | 44.78 | 29.00 | 66.20 | 5.70 | - | 8 | 7.90 | - |
| 2026-01-04 04:15 am | 4.9 | 56.84 | 44.79 | 29.00 | 75.20 | 6.50 | - | 7 | 8.00 | - |
| 2026-01-04 04:00 am | 4.9 | 56.84 | 44.84 | 29.00 | 71.90 | 6.20 | - | 7 | 7.90 | - |
Historical data for station EHSC1 are available at the NERRS website.
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