Station ELQC1 - South Marsh, Elkhorn Slough Reserve, CA
Owned and maintained by National Estuarine Research Reserve System
NERRS Water Quality Station
36.818 N 121.739 W (36°49'5" N 121°44'22" 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): | 4.3 ft |
 Ocean Temperature (OTMP): | 56.30 °F |
| Conductivity (COND): | 50.19 mS/cm |
| Salinity (SAL): | 32.90 psu |
| Oxygen Saturation (O2PCT): | 79.8% |
| Oxygen Concentration (O2PPM): | 6.80 ppm |
| Turbidity (TURB): | 3 FTU |
| pH (PH): | 8.00 |
| TIME (PST) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-02-11 09:00 am | 4.6 | 56.30 | 50.20 | 32.90 | 79.20 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-11 08:45 am | 4.6 | 56.30 | 50.21 | 32.90 | 78.80 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-11 08:30 am | 4.9 | 56.30 | 50.20 | 32.90 | 78.40 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-11 08:15 am | 4.9 | 56.30 | 50.22 | 32.90 | 78.10 | 6.60 | - | 3 | 8.00 | - |
| 2026-02-11 08:00 am | 5.2 | 56.12 | 50.30 | 32.90 | 77.80 | 6.60 | - | 3 | 8.00 | - |
| 2026-02-11 07:45 am | 5.2 | 56.12 | 50.31 | 32.90 | 76.80 | 6.50 | - | 3 | 8.00 | - |
| 2026-02-11 07:30 am | 5.2 | 55.94 | 50.32 | 33.00 | 77.00 | 6.60 | - | 3 | 7.90 | - |
| 2026-02-11 07:15 am | 5.6 | 55.94 | 50.32 | 33.00 | 77.30 | 6.60 | - | 3 | 7.90 | - |
| 2026-02-11 07:00 am | 5.6 | 56.12 | 50.33 | 33.00 | 78.00 | 6.60 | - | 3 | 7.90 | - |
| 2026-02-11 06:45 am | 5.6 | 56.12 | 50.35 | 33.00 | 79.10 | 6.70 | - | 3 | 7.90 | - |
| 2026-02-11 06:30 am | 5.9 | 56.12 | 50.35 | 33.00 | 79.80 | 6.80 | - | 3 | 7.90 | - |
| 2026-02-11 06:15 am | 5.9 | 56.12 | 50.37 | 33.00 | 81.00 | 6.90 | - | 3 | 8.00 | - |
| 2026-02-11 06:00 am | 5.9 | 56.12 | 50.40 | 33.00 | 81.60 | 7.00 | - | 3 | 7.90 | - |
| 2026-02-11 05:45 am | 5.9 | 56.12 | 50.40 | 33.00 | 81.90 | 7.00 | - | 3 | 7.90 | - |
| 2026-02-11 05:30 am | 5.9 | 56.12 | 50.40 | 33.00 | 82.30 | 7.00 | - | 3 | 7.90 | - |
| 2026-02-11 05:15 am | 5.9 | 56.30 | 50.40 | 33.00 | 82.30 | 7.00 | - | 3 | 7.90 | - |
| 2026-02-11 05:00 am | 5.9 | 56.30 | 50.41 | 33.00 | 82.50 | 7.00 | - | 2 | 7.90 | - |
| 2026-02-11 04:45 am | 5.9 | 56.30 | 50.41 | 33.00 | 83.60 | 7.10 | - | 3 | 7.90 | - |
| 2026-02-11 04:30 am | 5.9 | 56.30 | 50.41 | 33.00 | 83.70 | 7.10 | - | 3 | 8.00 | - |
| 2026-02-11 04:15 am | 5.9 | 56.30 | 50.41 | 33.00 | 83.80 | 7.10 | - | 3 | 8.00 | - |
| 2026-02-11 04:00 am | 5.6 | 56.12 | 50.41 | 33.00 | 83.80 | 7.10 | - | 4 | 8.00 | - |
| 2026-02-11 03:45 am | 5.6 | 56.12 | 50.41 | 33.00 | 83.70 | 7.10 | - | 4 | 8.00 | - |
| 2026-02-11 03:30 am | 5.6 | 56.12 | 50.40 | 33.00 | 83.50 | 7.10 | - | 4 | 8.00 | - |
| 2026-02-11 03:15 am | 5.2 | 56.12 | 50.40 | 33.00 | 83.90 | 7.20 | - | 4 | 8.00 | - |
| 2026-02-11 03:00 am | 5.2 | 56.12 | 50.41 | 33.00 | 83.90 | 7.10 | - | 4 | 8.00 | - |
| 2026-02-11 02:45 am | 5.2 | 56.12 | 50.41 | 33.00 | 84.00 | 7.20 | - | 5 | 8.00 | - |
| 2026-02-11 02:30 am | 4.9 | 56.12 | 50.42 | 33.00 | 83.20 | 7.10 | - | 4 | 8.00 | - |
| 2026-02-11 02:15 am | 4.9 | 56.30 | 50.41 | 33.00 | 81.90 | 7.00 | - | 4 | 8.00 | - |
| 2026-02-11 02:00 am | 4.9 | 56.48 | 50.41 | 33.00 | 81.70 | 6.90 | - | 4 | 8.00 | - |
| 2026-02-11 01:45 am | 4.9 | 56.48 | 50.41 | 33.00 | 82.10 | 7.00 | - | 4 | 8.00 | - |
| 2026-02-11 01:30 am | 4.6 | 56.48 | 50.38 | 33.00 | 82.60 | 7.00 | - | 4 | 8.00 | - |
| 2026-02-11 01:15 am | 4.6 | 56.48 | 50.39 | 33.00 | 82.20 | 7.00 | - | 3 | 8.00 | - |
| 2026-02-11 01:00 am | 4.6 | 56.48 | 50.39 | 33.00 | 81.70 | 6.90 | - | 3 | 8.00 | - |
| 2026-02-11 12:45 am | 4.6 | 56.48 | 50.38 | 33.00 | 82.60 | 7.00 | - | 3 | 8.10 | - |
| 2026-02-11 12:30 am | 4.6 | 56.66 | 50.40 | 33.00 | 83.40 | 7.10 | - | 4 | 8.10 | - |
| 2026-02-11 12:15 am | 4.3 | 56.48 | 50.42 | 33.00 | 82.80 | 7.00 | - | 4 | 8.10 | - |
| 2026-02-11 12:00 am | 4.3 | 56.66 | 50.44 | 33.00 | 82.40 | 7.00 | - | 3 | 8.10 | - |
| 2026-02-10 11:45 pm | 4.3 | 56.66 | 50.43 | 33.00 | 82.60 | 7.00 | - | 4 | 8.10 | - |
| 2026-02-10 11:30 pm | 4.3 | 56.66 | 50.45 | 33.10 | 82.50 | 7.00 | - | 4 | 8.10 | - |
| 2026-02-10 11:15 pm | 4.3 | 56.66 | 50.49 | 33.10 | 80.80 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 11:00 pm | 4.3 | 56.66 | 50.47 | 33.10 | 81.10 | 6.90 | - | 3 | 8.00 | - |
| 2026-02-10 10:45 pm | 4.3 | 56.66 | 50.53 | 33.10 | 79.70 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-10 10:30 pm | 4.3 | 56.66 | 50.53 | 33.10 | 79.90 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 10:15 pm | 3.9 | 56.66 | 50.52 | 33.10 | 79.90 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 10:00 pm | 3.9 | 56.66 | 50.52 | 33.10 | 79.80 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-10 09:45 pm | 3.9 | 56.66 | 50.52 | 33.10 | 79.40 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-10 09:30 pm | 3.9 | 56.66 | 50.52 | 33.10 | 79.70 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-10 09:15 pm | 3.9 | 56.84 | 50.51 | 33.10 | 79.20 | 6.70 | - | 4 | 8.00 | - |
| 2026-02-10 09:00 pm | 3.9 | 56.84 | 50.52 | 33.10 | 79.80 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-10 08:45 pm | 3.9 | 56.84 | 50.53 | 33.10 | 79.80 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-10 08:30 pm | 3.9 | 56.84 | 50.53 | 33.10 | 80.00 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 08:15 pm | 3.9 | 56.84 | 50.54 | 33.10 | 79.70 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-10 08:00 pm | 3.9 | 56.84 | 50.55 | 33.10 | 79.60 | 6.70 | - | 3 | 8.00 | - |
| 2026-02-10 07:45 pm | 3.9 | 56.84 | 50.56 | 33.10 | 80.20 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 07:30 pm | 3.9 | 56.84 | 50.57 | 33.10 | 80.20 | 6.80 | - | 4 | 8.00 | - |
| 2026-02-10 07:15 pm | 3.9 | 56.84 | 50.57 | 33.10 | 80.20 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 07:00 pm | 3.9 | 56.84 | 50.57 | 33.20 | 80.10 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 06:45 pm | 3.6 | 56.84 | 50.58 | 33.20 | 80.50 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 06:30 pm | 3.6 | 56.84 | 50.58 | 33.20 | 81.00 | 6.80 | - | 3 | 8.00 | - |
| 2026-02-10 06:15 pm | 3.6 | 57.02 | 50.58 | 33.20 | 81.60 | 6.90 | - | 3 | 8.00 | - |
| 2026-02-10 06:00 pm | 3.6 | 57.02 | 50.58 | 33.20 | 81.80 | 6.90 | - | 3 | 8.00 | - |
| 2026-02-10 05:45 pm | 3.3 | 57.02 | 50.59 | 33.20 | 82.10 | 6.90 | - | 3 | 8.00 | - |
| 2026-02-10 05:30 pm | 3.3 | 57.02 | 50.60 | 33.20 | 82.10 | 6.90 | - | 3 | 8.00 | - |
| 2026-02-10 05:15 pm | 3.3 | 57.20 | 50.60 | 33.20 | 82.10 | 6.90 | - | 2 | 8.00 | - |
| 2026-02-10 05:00 pm | 3.0 | 57.20 | 50.62 | 33.20 | 82.40 | 6.90 | - | 3 | 8.00 | - |
| 2026-02-10 04:45 pm | 3.0 | 57.20 | 50.61 | 33.20 | 83.10 | 7.00 | - | 3 | 8.00 | - |
| 2026-02-10 04:30 pm | 3.0 | 57.38 | 50.61 | 33.20 | 83.90 | 7.00 | - | 3 | 8.10 | - |
| 2026-02-10 04:15 pm | 2.6 | 57.38 | 50.62 | 33.20 | 84.90 | 7.10 | - | 3 | 8.10 | - |
| 2026-02-10 04:00 pm | 2.6 | 57.38 | 50.63 | 33.20 | 85.30 | 7.10 | - | 3 | 8.10 | - |
| 2026-02-10 03:45 pm | 2.6 | 57.38 | 50.63 | 33.20 | 85.70 | 7.20 | - | 3 | 8.10 | - |
| 2026-02-10 03:30 pm | 2.3 | 57.38 | 50.64 | 33.20 | 86.60 | 7.20 | - | 3 | 8.10 | - |
| 2026-02-10 03:15 pm | 2.3 | 57.56 | 50.66 | 33.20 | 87.80 | 7.30 | - | 3 | 8.10 | - |
| 2026-02-10 03:00 pm | 2.3 | 57.74 | 50.62 | 33.20 | 92.30 | 7.70 | - | 4 | 8.10 | - |
| 2026-02-10 02:45 pm | 2.0 | 58.10 | 50.59 | 33.20 | 96.50 | 8.00 | - | 4 | 8.10 | - |
| 2026-02-10 02:30 pm | 2.0 | 58.10 | 50.60 | 33.20 | 99.50 | 8.30 | - | 4 | 8.20 | - |
| 2026-02-10 02:15 pm | 2.0 | 58.28 | 50.60 | 33.20 | 99.70 | 8.30 | - | 4 | 8.20 | - |
| 2026-02-10 02:00 pm | 2.0 | 58.28 | 50.61 | 33.20 | 100.80 | 8.40 | - | 4 | 8.20 | - |
| 2026-02-10 01:45 pm | 1.6 | 58.28 | 50.61 | 33.20 | 102.90 | 8.50 | - | 4 | 8.20 | - |
| 2026-02-10 01:30 pm | 1.6 | 58.46 | 50.60 | 33.20 | 103.40 | 8.60 | - | 4 | 8.20 | - |
| 2026-02-10 01:15 pm | 1.6 | 58.46 | 50.60 | 33.20 | 103.30 | 8.60 | - | 5 | 8.20 | - |
| 2026-02-10 01:00 pm | 1.6 | 58.46 | 50.60 | 33.20 | 107.20 | 8.90 | - | 5 | 8.20 | - |
| 2026-02-10 12:45 pm | 1.6 | 58.28 | 50.63 | 33.20 | 102.60 | 8.50 | - | 4 | 8.20 | - |
| 2026-02-10 12:30 pm | 1.6 | 58.28 | 50.62 | 33.20 | 100.50 | 8.30 | - | 4 | 8.20 | - |
| 2026-02-10 12:15 pm | 1.6 | 58.46 | 50.61 | 33.20 | 102.40 | 8.50 | - | 4 | 8.20 | - |
| 2026-02-10 12:00 pm | 1.6 | 58.28 | 50.61 | 33.20 | 104.10 | 8.60 | - | 5 | 8.20 | - |
| 2026-02-10 11:45 am | 1.6 | 58.28 | 50.59 | 33.20 | 102.20 | 8.50 | - | 6 | 8.20 | - |
| 2026-02-10 11:30 am | 1.6 | 58.10 | 50.60 | 33.20 | 98.30 | 8.20 | - | 4 | 8.20 | - |
| 2026-02-10 11:15 am | 2.0 | 58.10 | 50.61 | 33.20 | 97.30 | 8.10 | - | 4 | 8.20 | - |
| 2026-02-10 11:00 am | 2.0 | 57.92 | 50.61 | 33.20 | 93.70 | 7.80 | - | 3 | 8.10 | - |
| 2026-02-10 10:45 am | 2.3 | 57.74 | 50.61 | 33.20 | 91.10 | 7.60 | - | 3 | 8.10 | - |
| 2026-02-10 10:30 am | 2.3 | 57.56 | 50.61 | 33.20 | 90.60 | 7.60 | - | 3 | 8.10 | - |
| 2026-02-10 10:15 am | 2.6 | 57.56 | 50.62 | 33.20 | 88.80 | 7.40 | - | 3 | 8.10 | - |
| 2026-02-10 10:00 am | 2.6 | 57.56 | 50.60 | 33.20 | 87.80 | 7.30 | - | 3 | 8.10 | - |
Historical data for station ELQC1 are available at the NERRS website.
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