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): | 66.02 °F |
| Conductivity (COND): | 51.00 mS/cm |
| Salinity (SAL): | 33.60 psu |
| Oxygen Saturation (O2PCT): | 56.1% |
| Oxygen Concentration (O2PPM): | 4.30 ppm |
| Turbidity (TURB): | 4 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-08 02:45 am | 3.6 | 66.02 | 51.02 | 33.60 | 56.00 | 4.30 | - | 4 | 8.00 | - |
| 2026-05-08 02:30 am | 3.6 | 66.20 | 51.04 | 33.60 | 56.00 | 4.30 | - | 4 | 8.00 | - |
| 2026-05-08 02:15 am | 3.3 | 66.38 | 51.05 | 33.60 | 55.60 | 4.20 | - | 4 | 8.00 | - |
| 2026-05-08 02:00 am | 3.3 | 66.56 | 51.08 | 33.60 | 56.00 | 4.20 | - | 6 | 8.00 | - |
| 2026-05-08 01:45 am | 3.3 | 66.74 | 51.13 | 33.60 | 56.10 | 4.20 | - | 4 | 8.00 | - |
| 2026-05-08 01:30 am | 3.3 | 67.10 | 51.17 | 33.70 | 58.00 | 4.40 | - | 4 | 8.00 | - |
| 2026-05-08 01:15 am | 3.3 | 67.28 | 51.19 | 33.70 | 59.50 | 4.50 | - | 4 | 8.00 | - |
| 2026-05-08 01:00 am | 3.3 | 67.46 | 51.17 | 33.70 | 62.20 | 4.70 | - | 4 | 8.00 | - |
| 2026-05-08 12:45 am | 3.3 | 67.64 | 51.16 | 33.70 | 64.30 | 4.80 | - | 5 | 8.00 | - |
| 2026-05-08 12:30 am | 3.3 | 67.82 | 51.15 | 33.70 | 66.10 | 4.90 | - | 4 | 8.10 | - |
| 2026-05-08 12:15 am | 3.3 | 68.18 | 51.21 | 33.70 | 66.90 | 5.00 | - | 5 | 8.10 | - |
| 2026-05-08 12:00 am | 3.3 | 68.54 | 51.35 | 33.80 | 69.00 | 5.10 | - | 5 | 8.10 | - |
| 2026-05-07 11:45 pm | 3.3 | 68.90 | 51.36 | 33.80 | 71.90 | 5.30 | - | 5 | 8.10 | - |
| 2026-05-07 11:30 pm | 3.3 | 69.26 | 51.44 | 33.90 | 73.10 | 5.40 | - | 6 | 8.10 | - |
| 2026-05-07 11:15 pm | 3.3 | 69.62 | 51.51 | 33.90 | 77.50 | 5.70 | - | 5 | 8.20 | - |
| 2026-05-07 11:00 pm | 3.3 | 69.98 | 51.55 | 33.90 | 80.10 | 5.80 | - | 5 | 8.20 | - |
| 2026-05-07 10:45 pm | 3.3 | 70.34 | 51.58 | 34.00 | 84.50 | 6.10 | - | 5 | 8.20 | - |
| 2026-05-07 10:30 pm | 3.3 | 70.70 | 51.61 | 34.00 | 87.60 | 6.30 | - | 5 | 8.20 | - |
| 2026-05-07 10:15 pm | 3.3 | 71.06 | 51.65 | 34.00 | 91.70 | 6.60 | - | 5 | 8.20 | - |
| 2026-05-07 10:00 pm | 3.3 | 71.42 | 51.71 | 34.10 | 94.80 | 6.80 | - | 4 | 8.20 | - |
| 2026-05-07 09:45 pm | 3.3 | 71.78 | 51.78 | 34.10 | 99.00 | 7.10 | - | 5 | 8.20 | - |
| 2026-05-07 09:30 pm | 3.3 | 72.32 | 51.87 | 34.20 | 99.70 | 7.10 | - | 4 | 8.20 | - |
| 2026-05-07 09:15 pm | 3.3 | 72.68 | 51.96 | 34.20 | 101.20 | 7.20 | - | 5 | 8.20 | - |
| 2026-05-07 09:00 pm | 3.3 | 73.04 | 52.01 | 34.30 | 107.10 | 7.60 | - | 5 | 8.30 | - |
| 2026-05-07 08:45 pm | 3.3 | 73.22 | 52.03 | 34.30 | 108.60 | 7.70 | - | 5 | 8.20 | - |
| 2026-05-07 08:30 pm | 3.3 | 73.58 | 52.05 | 34.30 | 110.80 | 7.80 | - | 9 | 8.20 | - |
| 2026-05-07 08:15 pm | 3.3 | 73.94 | 52.11 | 34.30 | 109.80 | 7.70 | - | 4 | 8.20 | - |
| 2026-05-07 08:00 pm | 3.3 | 74.12 | 52.15 | 34.40 | 115.80 | 8.10 | - | 5 | 8.20 | - |
| 2026-05-07 07:45 pm | 3.3 | 74.66 | 52.23 | 34.40 | 118.60 | 8.30 | - | 5 | 8.30 | - |
| 2026-05-07 07:30 pm | 3.3 | 75.02 | 52.30 | 34.50 | 122.50 | 8.50 | - | 4 | 8.30 | - |
| 2026-05-07 07:15 pm | 3.3 | 75.38 | 52.29 | 34.50 | 127.80 | 8.80 | - | 5 | 8.30 | - |
| 2026-05-07 07:00 pm | 3.3 | 75.74 | 52.34 | 34.50 | 131.20 | 9.00 | - | 5 | 8.30 | - |
| 2026-05-07 06:45 pm | 3.3 | 76.10 | 52.35 | 34.50 | 134.80 | 9.20 | - | 5 | 8.30 | - |
| 2026-05-07 06:30 pm | 3.3 | 76.46 | 52.48 | 34.60 | 138.40 | 9.50 | - | 5 | 8.30 | - |
| 2026-05-07 06:15 pm | 3.3 | 76.82 | 52.57 | 34.60 | 141.30 | 9.60 | - | 5 | 8.30 | - |
| 2026-05-07 06:00 pm | 3.3 | 77.00 | 52.67 | 34.70 | 141.80 | 9.60 | - | 5 | 8.30 | - |
| 2026-05-07 05:45 pm | 3.3 | 77.18 | 52.72 | 34.80 | 143.40 | 9.70 | - | 5 | 8.30 | - |
| 2026-05-07 05:30 pm | 3.3 | 77.18 | 52.76 | 34.80 | 143.20 | 9.70 | - | 5 | 8.30 | - |
| 2026-05-07 05:15 pm | 3.3 | 77.18 | 52.80 | 34.80 | 142.80 | 9.70 | - | 5 | 8.30 | - |
| 2026-05-07 05:00 pm | 3.3 | 77.00 | 52.86 | 34.90 | 139.90 | 9.50 | - | 5 | 8.20 | - |
| 2026-05-07 04:45 pm | 3.3 | 77.00 | 52.87 | 34.90 | 139.60 | 9.50 | - | 5 | 8.20 | - |
| 2026-05-07 04:30 pm | 3.3 | 77.36 | 53.02 | 35.00 | 139.50 | 9.40 | - | 4 | 8.20 | - |
| 2026-05-07 04:15 pm | 3.3 | 78.08 | 53.22 | 35.10 | 145.50 | 9.80 | - | 6 | 8.20 | - |
| 2026-05-07 04:00 pm | 3.3 | - | 53.34 | 35.20 | 145.10 | 9.70 | - | 4 | 8.20 | - |
| 2026-05-07 03:45 pm | 3.3 | 78.98 | 53.62 | 35.40 | 149.00 | 9.90 | - | 4 | 8.30 | - |
| 2026-05-07 03:30 pm | 3.3 | 79.52 | 53.86 | 35.60 | 153.70 | 10.10 | - | 4 | 8.30 | - |
| 2026-05-07 03:15 pm | 3.3 | 79.70 | 53.97 | 35.60 | 160.00 | 10.50 | - | 3 | 8.30 | - |
| 2026-05-07 03:00 pm | 3.3 | 79.70 | 53.98 | 35.60 | 138.50 | 9.10 | - | 3 | 8.30 | - |
| 2026-05-07 02:45 pm | 3.3 | 78.98 | 53.73 | 35.50 | 129.70 | 8.60 | - | 4 | 8.20 | - |
| 2026-05-07 02:30 pm | 3.3 | 77.36 | 53.81 | 35.60 | 89.90 | 6.10 | - | 5 | 8.20 | - |
| 2026-05-07 02:15 pm | 3.3 | 77.72 | 53.77 | 35.50 | 98.80 | 6.60 | - | 4 | 8.20 | - |
| 2026-05-07 02:00 pm | 3.3 | 77.36 | 53.75 | 35.50 | 98.10 | 6.60 | - | 5 | 8.20 | - |
| 2026-05-07 01:45 pm | 3.3 | 76.64 | 53.87 | 35.60 | 94.20 | 6.40 | - | 5 | 8.20 | - |
| 2026-05-07 01:30 pm | 3.3 | 76.10 | 53.52 | 35.40 | 98.30 | 6.70 | - | 5 | 8.20 | - |
| 2026-05-07 01:15 pm | 3.3 | 74.66 | 53.29 | 35.20 | 92.60 | 6.40 | - | 4 | 8.20 | - |
| 2026-05-07 01:00 pm | 3.3 | 74.12 | 53.09 | 35.10 | 94.70 | 6.60 | - | 4 | 8.20 | - |
| 2026-05-07 12:45 pm | 3.3 | 73.04 | 52.53 | 34.70 | 95.50 | 6.70 | - | 5 | 8.10 | - |
| 2026-05-07 12:30 pm | 3.3 | 72.32 | 52.16 | 34.40 | 95.40 | 6.80 | - | 4 | 8.10 | - |
| 2026-05-07 12:15 pm | 3.3 | 71.96 | 51.94 | 34.20 | 92.10 | 6.60 | - | 4 | 8.10 | - |
| 2026-05-07 12:00 pm | 3.3 | 71.60 | 51.86 | 34.20 | 88.20 | 6.30 | - | 4 | 8.10 | - |
| 2026-05-07 11:45 am | 3.3 | 71.24 | 51.83 | 34.10 | 85.70 | 6.20 | - | 3 | 8.00 | - |
| 2026-05-07 11:30 am | 3.3 | 70.88 | 51.88 | 34.20 | 86.70 | 6.30 | - | 4 | 8.00 | - |
| 2026-05-07 11:15 am | 3.3 | 70.16 | 51.87 | 34.20 | 85.10 | 6.20 | - | 5 | 8.00 | - |
| 2026-05-07 11:00 am | 3.3 | 69.08 | 51.63 | 34.00 | 77.80 | 5.70 | - | 4 | 8.00 | - |
| 2026-05-07 10:45 am | 3.3 | 68.00 | 51.61 | 34.00 | 72.70 | 5.40 | - | 4 | 8.00 | - |
| 2026-05-07 10:30 am | 3.3 | 67.28 | 51.61 | 34.00 | 68.80 | 5.20 | - | 3 | 8.00 | - |
| 2026-05-07 10:15 am | 3.3 | 66.56 | 51.56 | 34.00 | 63.30 | 4.80 | - | 3 | 8.00 | - |
| 2026-05-07 10:00 am | 3.6 | 65.84 | 51.42 | 33.90 | 56.70 | 4.30 | - | 3 | 7.90 | - |
| 2026-05-07 09:45 am | 3.6 | 65.12 | 51.44 | 33.90 | 54.20 | 4.20 | - | 3 | 7.90 | - |
| 2026-05-07 09:30 am | 3.6 | 64.40 | 51.22 | 33.70 | 50.70 | 3.90 | - | 3 | 7.90 | - |
| 2026-05-07 09:15 am | 3.6 | 64.04 | 51.04 | 33.60 | 47.40 | 3.70 | - | 3 | 7.90 | - |
| 2026-05-07 09:00 am | 3.6 | 63.68 | 51.00 | 33.50 | 43.80 | 3.40 | - | 2 | 7.90 | - |
| 2026-05-07 08:45 am | 3.6 | 63.50 | 50.88 | 33.50 | 42.50 | 3.30 | - | 2 | 7.90 | - |
| 2026-05-07 08:30 am | 3.6 | 63.32 | 50.82 | 33.40 | 41.80 | 3.30 | - | 2 | 7.90 | - |
| 2026-05-07 08:15 am | 3.6 | 63.32 | 50.84 | 33.40 | 40.90 | 3.20 | - | 3 | 7.90 | - |
| 2026-05-07 08:00 am | 3.6 | 62.96 | 50.80 | 33.40 | 40.30 | 3.20 | - | 3 | 7.80 | - |
| 2026-05-07 07:45 am | 3.6 | 62.78 | 50.66 | 33.30 | 44.50 | 3.50 | - | 4 | 7.90 | - |
| 2026-05-07 07:30 am | 3.6 | 62.96 | 50.83 | 33.40 | 36.80 | 2.90 | - | 2 | 7.80 | - |
| 2026-05-07 07:15 am | 3.6 | 62.96 | 50.98 | 33.50 | 28.70 | 2.30 | - | 2 | 7.80 | - |
| 2026-05-07 07:00 am | 3.6 | 62.78 | 50.97 | 33.50 | 28.90 | 2.30 | - | 2 | 7.80 | - |
| 2026-05-07 06:45 am | 3.6 | 62.78 | 50.95 | 33.50 | 28.20 | 2.20 | - | 3 | 7.80 | - |
| 2026-05-07 06:30 am | 3.6 | 62.78 | 50.91 | 33.50 | 31.90 | 2.50 | - | 3 | 7.80 | - |
| 2026-05-07 06:15 am | 3.6 | 62.78 | 50.94 | 33.50 | 30.70 | 2.40 | - | 2 | 7.80 | - |
| 2026-05-07 06:00 am | 3.6 | 62.96 | 50.80 | 33.40 | 33.20 | 2.60 | - | 2 | 7.80 | - |
| 2026-05-07 05:45 am | 3.6 | 63.14 | 50.55 | 33.20 | 48.70 | 3.80 | - | 2 | 7.90 | - |
| 2026-05-07 05:30 am | 3.6 | 63.32 | 50.58 | 33.20 | 52.10 | 4.10 | - | 2 | 7.90 | - |
| 2026-05-07 05:15 am | 3.6 | 63.32 | 50.57 | 33.20 | 54.40 | 4.30 | - | 2 | 7.90 | - |
| 2026-05-07 05:00 am | 3.6 | 63.32 | 50.55 | 33.20 | 55.00 | 4.30 | - | 2 | 7.90 | - |
| 2026-05-07 04:45 am | 3.6 | 63.14 | 50.53 | 33.20 | 59.20 | 4.70 | - | 3 | 7.90 | - |
| 2026-05-07 04:30 am | 3.6 | 63.14 | 50.48 | 33.20 | 61.10 | 4.80 | - | 2 | 7.90 | - |
| 2026-05-07 04:15 am | 3.6 | 62.96 | 50.46 | 33.10 | 63.00 | 5.00 | - | 2 | 7.90 | - |
| 2026-05-07 04:00 am | 3.6 | 62.96 | 50.43 | 33.10 | 66.70 | 5.30 | - | 3 | 8.00 | - |
Historical data for station EHSC1 are available at the NERRS website.
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