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): | 2.3 ft |
 Ocean Temperature (OTMP): | 67.28 °F |
| Conductivity (COND): | 49.88 mS/cm |
| Salinity (SAL): | 32.70 psu |
| Oxygen Saturation (O2PCT): | 75.8% |
| Oxygen Concentration (O2PPM): | 5.70 ppm |
| Turbidity (TURB): | 35 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-12 01:00 am | 2.3 | 67.28 | 50.80 | 33.40 | 76.50 | 5.80 | - | 40 | 8.00 | - |
| 2026-05-12 12:45 am | 2.3 | 67.28 | 50.27 | 33.00 | 77.50 | 5.90 | - | 53 | 8.00 | - |
| 2026-05-12 12:30 am | 2.6 | 67.46 | 50.90 | 33.50 | 79.20 | 6.00 | - | 56 | 8.00 | - |
| 2026-05-12 12:15 am | 2.6 | 67.28 | 50.89 | 33.50 | 81.30 | 6.10 | - | 134 | 8.00 | - |
| 2026-05-12 12:00 am | 3.0 | 66.92 | 50.78 | 33.40 | 82.10 | 6.20 | - | 59 | 8.00 | - |
| 2026-05-11 11:45 pm | 3.0 | 66.74 | 50.80 | 33.40 | 83.10 | 6.30 | - | 74 | 8.00 | - |
| 2026-05-11 11:30 pm | 3.3 | 66.38 | 50.76 | 33.40 | 81.20 | 6.20 | - | 72 | 8.00 | - |
| 2026-05-11 11:15 pm | 3.6 | 66.56 | 50.86 | 33.40 | 81.70 | 6.20 | - | 107 | 8.00 | - |
| 2026-05-11 11:00 pm | 3.6 | 66.56 | 47.98 | 31.30 | 80.70 | 6.20 | - | 162 | 8.00 | - |
| 2026-05-11 10:45 pm | 3.9 | 65.84 | 50.48 | 33.20 | 78.30 | 6.00 | - | 102 | 8.00 | - |
| 2026-05-11 10:30 pm | 3.9 | 65.84 | 47.64 | 31.10 | 77.80 | 6.00 | - | 36 | 8.00 | - |
| 2026-05-11 10:15 pm | 4.3 | 65.30 | 47.56 | 31.00 | 79.30 | 6.20 | - | 29 | 8.00 | - |
| 2026-05-11 10:00 pm | 4.3 | 64.94 | 48.34 | 31.60 | 77.00 | 6.00 | - | 28 | 7.90 | - |
| 2026-05-11 09:45 pm | 4.6 | 64.22 | 49.06 | 32.10 | 76.70 | 6.00 | - | 29 | 7.90 | - |
| 2026-05-11 09:30 pm | 4.6 | 63.86 | 48.25 | 31.50 | 77.20 | 6.10 | - | 28 | 8.00 | - |
| 2026-05-11 09:15 pm | 4.6 | 62.96 | 48.44 | 31.70 | 80.50 | 6.40 | - | 25 | 8.00 | - |
| 2026-05-11 09:00 pm | 4.9 | 63.14 | 49.79 | 32.70 | 82.50 | 6.50 | - | 32 | 8.00 | - |
| 2026-05-11 08:45 pm | 4.9 | 63.14 | 49.71 | 32.60 | 81.80 | 6.50 | - | 36 | 8.00 | - |
| 2026-05-11 08:30 pm | 4.9 | 62.42 | 49.85 | 32.70 | 78.30 | 6.20 | - | 64 | 8.00 | - |
| 2026-05-11 08:15 pm | 4.9 | 62.42 | 49.79 | 32.60 | 81.30 | 6.50 | - | 25 | 8.00 | - |
| 2026-05-11 08:00 pm | 4.9 | 62.42 | 49.87 | 32.70 | 82.50 | 6.60 | - | 25 | 8.00 | - |
| 2026-05-11 07:45 pm | 4.9 | 62.60 | 49.83 | 32.70 | 83.00 | 6.60 | - | 25 | 8.00 | - |
| 2026-05-11 07:30 pm | 4.9 | 62.78 | 49.74 | 32.60 | 81.70 | 6.50 | - | 27 | 8.00 | - |
| 2026-05-11 07:15 pm | 4.9 | 62.96 | 49.76 | 32.60 | 83.40 | 6.60 | - | 27 | 8.00 | - |
| 2026-05-11 07:00 pm | 4.6 | 62.96 | 49.66 | 32.60 | 82.80 | 6.60 | - | 27 | 8.00 | - |
| 2026-05-11 06:45 pm | 4.6 | 63.50 | 49.75 | 32.60 | 81.40 | 6.40 | - | 38 | 8.00 | - |
| 2026-05-11 06:30 pm | 4.6 | 63.86 | 49.69 | 32.60 | 79.40 | 6.20 | - | 37 | 7.90 | - |
| 2026-05-11 06:15 pm | 4.3 | 64.22 | 49.36 | 32.30 | 78.60 | 6.10 | - | 40 | 7.90 | - |
| 2026-05-11 06:00 pm | 4.3 | 64.40 | 49.81 | 32.70 | 77.10 | 6.00 | - | 39 | 7.90 | - |
| 2026-05-11 05:45 pm | 3.9 | 64.58 | 49.92 | 32.80 | 75.40 | 5.90 | - | 39 | 7.90 | - |
| 2026-05-11 05:30 pm | 3.6 | 64.76 | 49.94 | 32.80 | 74.00 | 5.70 | - | 41 | 7.90 | - |
| 2026-05-11 05:15 pm | 3.6 | 64.94 | 50.04 | 32.80 | 74.50 | 5.80 | - | 40 | 7.90 | - |
| 2026-05-11 05:00 pm | 3.3 | 65.30 | 50.09 | 32.90 | 74.40 | 5.70 | - | 41 | 7.90 | - |
| 2026-05-11 04:45 pm | 3.3 | 65.48 | 50.30 | 33.00 | 75.40 | 5.80 | - | 43 | 7.90 | - |
| 2026-05-11 04:30 pm | 3.0 | 65.84 | 50.31 | 33.00 | 77.80 | 6.00 | - | 39 | 7.90 | - |
| 2026-05-11 04:15 pm | 3.0 | 66.02 | 50.33 | 33.10 | 80.50 | 6.10 | - | 40 | 7.90 | - |
| 2026-05-11 04:00 pm | 2.6 | 66.20 | 50.52 | 33.20 | 82.00 | 6.20 | - | 37 | 7.90 | - |
| 2026-05-11 03:45 pm | 2.6 | 66.38 | 50.56 | 33.20 | 81.30 | 6.20 | - | 34 | 7.90 | - |
| 2026-05-11 03:30 pm | 2.3 | 66.56 | 50.64 | 33.30 | 81.20 | 6.20 | - | 36 | 7.90 | - |
| 2026-05-11 03:15 pm | 2.0 | 66.56 | 50.66 | 33.30 | 82.70 | 6.30 | - | 33 | 7.90 | - |
| 2026-05-11 03:00 pm | 2.0 | 67.10 | 50.59 | 33.20 | 88.60 | 6.70 | - | 33 | 8.00 | - |
| 2026-05-11 02:45 pm | 1.6 | 68.36 | 50.70 | 33.30 | 95.40 | 7.10 | - | 32 | 8.00 | - |
| 2026-05-11 02:30 pm | 1.6 | 68.90 | 50.77 | 33.40 | 99.80 | 7.40 | - | 28 | 8.00 | - |
| 2026-05-11 02:15 pm | 1.6 | 69.26 | 50.77 | 33.40 | 103.00 | 7.60 | - | 29 | 8.00 | - |
| 2026-05-11 02:00 pm | 1.3 | 69.44 | 50.72 | 33.30 | 103.10 | 7.60 | - | 26 | 8.00 | - |
| 2026-05-11 01:45 pm | 1.3 | 69.62 | 51.33 | 33.80 | 104.00 | 7.60 | - | 32 | 8.10 | - |
| 2026-05-11 01:30 pm | 1.0 | 69.08 | 51.41 | 33.80 | 80.90 | 6.00 | - | 24 | 8.00 | - |
| 2026-05-11 01:15 pm | 1.0 | 68.90 | 51.41 | 33.80 | 89.00 | 6.60 | - | 24 | 8.00 | - |
| 2026-05-11 01:00 pm | 1.0 | 69.26 | 51.34 | 33.80 | 84.00 | 6.20 | - | 48 | 8.00 | - |
| 2026-05-11 12:45 pm | 1.0 | 68.90 | 51.36 | 33.80 | 80.40 | 5.90 | - | 48 | 8.00 | - |
| 2026-05-11 12:30 pm | 1.0 | 68.90 | 51.32 | 33.80 | 81.80 | 6.10 | - | 50 | 8.00 | - |
| 2026-05-11 12:15 pm | 1.0 | 68.54 | 51.32 | 33.80 | 93.70 | 6.90 | - | 50 | 8.00 | - |
| 2026-05-11 12:00 pm | 1.0 | 68.18 | 51.30 | 33.80 | 90.80 | 6.80 | - | 52 | 8.00 | - |
| 2026-05-11 11:45 am | 1.3 | 68.18 | 51.27 | 33.70 | 91.40 | 6.80 | - | 50 | 8.00 | - |
| 2026-05-11 11:30 am | 1.3 | 67.64 | 51.25 | 33.70 | 87.80 | 6.60 | - | 53 | 8.00 | - |
| 2026-05-11 11:15 am | 1.6 | 67.28 | 51.17 | 33.70 | 87.10 | 6.50 | - | 52 | 8.00 | - |
| 2026-05-11 11:00 am | 1.6 | 66.92 | 51.16 | 33.70 | 81.80 | 6.20 | - | 56 | 8.00 | - |
| 2026-05-11 10:45 am | 2.0 | 66.56 | 51.15 | 33.70 | 75.30 | 5.70 | - | 48 | 8.00 | - |
| 2026-05-11 10:30 am | 2.3 | 66.02 | 50.97 | 33.50 | 74.80 | 5.70 | - | 45 | 8.00 | - |
| 2026-05-11 10:15 am | 2.3 | 65.48 | 51.02 | 33.60 | 64.80 | 5.00 | - | 43 | 7.90 | - |
| 2026-05-11 10:00 am | 2.6 | 65.30 | 51.01 | 33.60 | 64.70 | 5.00 | - | 55 | 7.90 | - |
| 2026-05-11 09:45 am | 3.0 | 64.94 | 50.99 | 33.50 | 65.00 | 5.00 | - | 59 | 7.90 | - |
| 2026-05-11 09:30 am | 3.0 | 64.76 | 51.00 | 33.50 | 61.80 | 4.80 | - | 47 | 7.90 | - |
| 2026-05-11 09:15 am | 3.3 | 64.76 | 51.07 | 33.60 | 59.60 | 4.60 | - | 48 | 7.90 | - |
| 2026-05-11 09:00 am | 3.3 | 64.58 | 51.00 | 33.50 | 59.80 | 4.60 | - | 48 | 7.90 | - |
| 2026-05-11 08:45 am | 3.6 | 64.58 | 50.88 | 33.50 | 59.90 | 4.60 | - | 48 | 7.90 | - |
| 2026-05-11 08:30 am | 3.6 | 64.40 | 50.76 | 33.40 | 59.70 | 4.60 | - | 42 | 7.90 | - |
| 2026-05-11 08:15 am | 3.9 | 63.86 | 50.72 | 33.30 | 58.80 | 4.60 | - | 36 | 7.90 | - |
| 2026-05-11 08:00 am | 3.9 | 63.68 | 50.67 | 33.30 | 58.90 | 4.60 | - | 32 | 7.90 | - |
| 2026-05-11 07:45 am | 3.9 | 63.50 | 50.68 | 33.30 | 58.20 | 4.60 | - | 30 | 7.90 | - |
| 2026-05-11 07:30 am | 3.9 | 63.68 | 50.70 | 33.30 | 57.50 | 4.50 | - | 29 | 7.90 | - |
| 2026-05-11 07:15 am | 4.3 | 63.50 | 50.58 | 33.20 | 54.10 | 4.20 | - | 587 | 7.80 | - |
| 2026-05-11 07:00 am | 4.3 | 63.50 | 50.64 | 33.30 | 46.40 | 3.60 | - | 29 | 7.80 | - |
| 2026-05-11 06:45 am | 4.3 | 63.50 | 50.78 | 33.40 | 47.60 | 3.70 | - | 32 | 7.80 | - |
| 2026-05-11 06:30 am | 4.3 | 63.32 | 50.60 | 33.20 | 52.50 | 4.10 | - | 30 | 7.90 | - |
| 2026-05-11 06:15 am | 4.3 | 63.14 | 50.48 | 33.20 | 60.10 | 4.70 | - | 35 | 7.90 | - |
| 2026-05-11 06:00 am | 4.3 | 63.32 | 50.29 | 33.00 | 60.80 | 4.80 | - | 50 | 7.90 | - |
| 2026-05-11 05:45 am | 4.3 | 63.32 | 50.30 | 33.00 | 62.90 | 4.90 | - | 361 | 7.90 | - |
| 2026-05-11 05:30 am | 4.3 | 63.50 | 50.36 | 33.10 | 62.40 | 4.90 | - | 36 | 7.90 | - |
| 2026-05-11 05:15 am | 3.9 | 63.68 | 49.92 | 32.70 | 63.50 | 5.00 | - | 40 | 7.90 | - |
| 2026-05-11 05:00 am | 3.9 | 63.86 | 50.43 | 33.10 | 65.30 | 5.10 | - | 40 | 7.90 | - |
| 2026-05-11 04:45 am | 3.9 | 64.04 | 49.80 | 32.70 | 64.30 | 5.00 | - | 37 | 7.90 | - |
| 2026-05-11 04:30 am | 3.9 | 64.04 | 50.52 | 33.20 | 64.60 | 5.00 | - | 38 | 7.90 | - |
| 2026-05-11 04:15 am | 3.6 | 64.22 | 50.54 | 33.20 | 64.00 | 5.00 | - | 39 | 7.90 | - |
| 2026-05-11 04:00 am | 3.6 | 64.22 | 50.48 | 33.20 | 64.70 | 5.00 | - | 39 | 7.90 | - |
| 2026-05-11 03:45 am | 3.6 | 64.22 | 50.49 | 33.20 | 62.80 | 4.90 | - | 36 | 7.90 | - |
| 2026-05-11 03:30 am | 3.3 | 64.40 | 50.54 | 33.20 | 64.20 | 5.00 | - | 38 | 7.90 | - |
| 2026-05-11 03:15 am | 3.3 | 64.76 | 50.48 | 33.20 | 61.50 | 4.80 | - | 37 | 7.90 | - |
| 2026-05-11 03:00 am | 3.3 | 65.12 | 50.92 | 33.50 | 64.10 | 4.90 | - | 39 | 7.90 | - |
| 2026-05-11 02:45 am | 3.3 | 65.30 | 50.88 | 33.50 | 61.70 | 4.70 | - | 42 | 7.90 | - |
| 2026-05-11 02:30 am | 3.0 | 65.30 | 50.91 | 33.50 | 66.90 | 5.10 | - | 42 | 7.90 | - |
| 2026-05-11 02:15 am | 3.0 | 65.84 | 50.99 | 33.50 | 66.10 | 5.10 | - | 50 | 7.90 | - |
| 2026-05-11 02:00 am | 3.0 | 65.84 | 51.00 | 33.50 | 64.30 | 4.90 | - | 37 | 7.90 | - |
Historical data for station ELQC1 are available at the NERRS website.
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