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): | 0.3 ft |
 Ocean Temperature (OTMP): | 64.22 °F |
| Conductivity (COND): | 49.42 mS/cm |
| Salinity (SAL): | 32.40 psu |
| Oxygen Saturation (O2PCT): | 105.3% |
| Oxygen Concentration (O2PPM): | 8.20 ppm |
| Turbidity (TURB): | 6 FTU |
| pH (PH): | 8.10 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-03-15 03:00 pm | 0.3 | 64.04 | 49.42 | 32.40 | 108.50 | 8.50 | - | 7 | 8.10 | - |
| 2026-03-15 02:45 pm | 0.3 | 64.04 | 49.42 | 32.40 | 105.60 | 8.30 | - | 7 | 8.10 | - |
| 2026-03-15 02:30 pm | 0.3 | 63.68 | 49.43 | 32.40 | 108.30 | 8.50 | - | 7 | 8.10 | - |
| 2026-03-15 02:15 pm | 0.7 | 63.14 | 44.92 | 29.10 | 107.10 | 8.60 | - | 159 | 8.10 | - |
| 2026-03-15 02:00 pm | 0.7 | 62.60 | 49.01 | 32.10 | 104.60 | 8.30 | - | 16 | 8.10 | - |
| 2026-03-15 01:45 pm | 1.3 | 61.88 | 49.45 | 32.40 | 101.70 | 8.10 | - | 7 | 8.10 | - |
| 2026-03-15 01:30 pm | 1.6 | 61.34 | 49.47 | 32.40 | 98.30 | 7.90 | - | 5 | 8.10 | - |
| 2026-03-15 01:15 pm | 2.0 | 60.62 | 49.48 | 32.40 | 96.40 | 7.80 | - | 4 | 8.10 | - |
| 2026-03-15 01:00 pm | 2.3 | 60.08 | 49.48 | 32.40 | 92.40 | 7.60 | - | 4 | 8.10 | - |
| 2026-03-15 12:45 pm | 2.6 | 59.36 | 49.55 | 32.40 | 90.00 | 7.40 | - | 4 | 8.10 | - |
| 2026-03-15 12:30 pm | 3.0 | 59.00 | 49.66 | 32.50 | 90.70 | 7.50 | - | 4 | 8.10 | - |
| 2026-03-15 12:15 pm | 3.3 | 58.82 | 49.59 | 32.50 | 91.00 | 7.50 | - | 3 | 8.10 | - |
| 2026-03-15 12:00 pm | 3.6 | 58.10 | 49.61 | 32.50 | 83.60 | 7.00 | - | 3 | 8.00 | - |
| 2026-03-15 11:45 am | 3.6 | 57.92 | 49.63 | 32.50 | 84.90 | 7.10 | - | 3 | 8.00 | - |
| 2026-03-15 11:30 am | 3.9 | 57.74 | 49.66 | 32.50 | 85.70 | 7.20 | - | 3 | 8.00 | - |
| 2026-03-15 11:15 am | 4.3 | 57.38 | 49.70 | 32.50 | 84.20 | 7.10 | - | 3 | 8.00 | - |
| 2026-03-15 11:00 am | 4.6 | 57.02 | 49.73 | 32.50 | 83.60 | 7.10 | - | 3 | 8.00 | - |
| 2026-03-15 10:45 am | 4.6 | 56.48 | 49.78 | 32.60 | 85.40 | 7.30 | - | 3 | 8.00 | - |
| 2026-03-15 10:30 am | 4.9 | 55.04 | 50.10 | 32.80 | 89.70 | 7.80 | - | 2 | 8.00 | - |
| 2026-03-15 10:15 am | 4.9 | 54.68 | 50.15 | 32.80 | 89.90 | 7.80 | - | 6 | 8.00 | - |
| 2026-03-15 10:00 am | 5.2 | 54.68 | 50.20 | 32.80 | 90.20 | 7.80 | - | 28 | 8.10 | - |
| 2026-03-15 09:45 am | 5.2 | 54.68 | 50.17 | 32.80 | 88.20 | 7.60 | - | 5 | 8.00 | - |
| 2026-03-15 09:30 am | 5.2 | 54.68 | 50.17 | 32.80 | 89.00 | 7.70 | - | 5 | 8.00 | - |
| 2026-03-15 09:15 am | 5.6 | 54.50 | 50.27 | 32.90 | 90.10 | 7.80 | - | 5 | 8.10 | - |
| 2026-03-15 09:00 am | 5.6 | 54.50 | 50.28 | 32.90 | 89.00 | 7.70 | - | 4 | 8.10 | - |
| 2026-03-15 08:45 am | 5.6 | 54.50 | 50.24 | 32.90 | 91.30 | 7.90 | - | 4 | 8.10 | - |
| 2026-03-15 08:30 am | 5.6 | 54.50 | 50.26 | 32.90 | 92.30 | 8.00 | - | 5 | 8.10 | - |
| 2026-03-15 08:15 am | 5.6 | 54.50 | 50.22 | 32.80 | 90.70 | 7.90 | - | 7 | 8.10 | - |
| 2026-03-15 08:00 am | 5.6 | 54.50 | 50.22 | 32.80 | 91.30 | 7.90 | - | 5 | 8.10 | - |
| 2026-03-15 07:45 am | 5.2 | 54.50 | 50.19 | 32.80 | 90.40 | 7.80 | - | 4 | 8.10 | - |
| 2026-03-15 07:30 am | 5.2 | 54.68 | 50.12 | 32.80 | 88.30 | 7.70 | - | 5 | 8.00 | - |
| 2026-03-15 07:15 am | 5.2 | 54.68 | 50.08 | 32.70 | 87.40 | 7.60 | - | 7 | 8.00 | - |
| 2026-03-15 07:00 am | 4.9 | 54.86 | 50.03 | 32.70 | 86.10 | 7.50 | - | 5 | 8.00 | - |
| 2026-03-15 06:45 am | 4.9 | 55.04 | 49.98 | 32.70 | 85.00 | 7.30 | - | 5 | 8.00 | - |
| 2026-03-15 06:30 am | 4.6 | 55.04 | 49.96 | 32.70 | 84.30 | 7.30 | - | 6 | 8.00 | - |
| 2026-03-15 06:15 am | 4.6 | 55.22 | 49.89 | 32.60 | 82.00 | 7.10 | - | 4 | 8.00 | - |
| 2026-03-15 06:00 am | 4.6 | 55.58 | 49.79 | 32.60 | 79.60 | 6.80 | - | 7 | 8.00 | - |
| 2026-03-15 05:45 am | 4.3 | 55.94 | 49.72 | 32.50 | 77.70 | 6.70 | - | 3 | 8.00 | - |
| 2026-03-15 05:30 am | 3.9 | 55.94 | 49.68 | 32.50 | 77.10 | 6.60 | - | 3 | 8.00 | - |
| 2026-03-15 05:15 am | 3.9 | 56.12 | 49.66 | 32.50 | 76.30 | 6.50 | - | 3 | 8.00 | - |
| 2026-03-15 05:00 am | 3.9 | 56.30 | 49.64 | 32.50 | 75.80 | 6.50 | - | 3 | 8.00 | - |
| 2026-03-15 04:45 am | 3.6 | 56.30 | 49.62 | 32.40 | 75.90 | 6.50 | - | 4 | 8.00 | - |
| 2026-03-15 04:30 am | 3.6 | 56.66 | 49.59 | 32.40 | 75.20 | 6.40 | - | 3 | 8.00 | - |
| 2026-03-15 04:15 am | 3.6 | 57.02 | 49.57 | 32.40 | 75.60 | 6.40 | - | 4 | 8.00 | - |
| 2026-03-15 04:00 am | 3.3 | 57.20 | 49.55 | 32.40 | 75.40 | 6.40 | - | 4 | 8.00 | - |
| 2026-03-15 03:45 am | 3.3 | 57.56 | 49.51 | 32.40 | 74.80 | 6.30 | - | 5 | 8.00 | - |
| 2026-03-15 03:30 am | 3.3 | 57.74 | 49.47 | 32.40 | 75.60 | 6.30 | - | 4 | 8.00 | - |
| 2026-03-15 03:15 am | 3.3 | 57.74 | 49.49 | 32.40 | 75.80 | 6.40 | - | 4 | 8.00 | - |
| 2026-03-15 03:00 am | 3.3 | 57.74 | 49.49 | 32.40 | 74.20 | 6.20 | - | 4 | 8.00 | - |
| 2026-03-15 02:45 am | 3.0 | 57.74 | 49.48 | 32.40 | 72.50 | 6.10 | - | 4 | 8.00 | - |
| 2026-03-15 02:30 am | 3.0 | 57.92 | 49.47 | 32.40 | 73.70 | 6.20 | - | 4 | 8.00 | - |
| 2026-03-15 02:15 am | 3.0 | 58.10 | 49.46 | 32.40 | 75.30 | 6.30 | - | 4 | 8.00 | - |
| 2026-03-15 02:00 am | 3.0 | 58.28 | 49.44 | 32.30 | 75.30 | 6.30 | - | 3 | 8.00 | - |
| 2026-03-15 01:45 am | 3.0 | 58.46 | 49.43 | 32.30 | 80.80 | 6.70 | - | 4 | 8.10 | - |
| 2026-03-15 01:30 am | 3.3 | 58.64 | 49.43 | 32.30 | 82.30 | 6.80 | - | 4 | 8.10 | - |
| 2026-03-15 01:15 am | 3.3 | 58.46 | 49.45 | 32.40 | 82.50 | 6.90 | - | 4 | 8.10 | - |
| 2026-03-15 01:00 am | 3.3 | 58.64 | 49.43 | 32.30 | 83.70 | 7.00 | - | 4 | 8.10 | - |
| 2026-03-15 12:45 am | 3.3 | 58.28 | 49.45 | 32.40 | 83.50 | 7.00 | - | 4 | 8.10 | - |
| 2026-03-15 12:30 am | 3.6 | 58.28 | 49.45 | 32.40 | 83.50 | 7.00 | - | 4 | 8.10 | - |
| 2026-03-15 12:15 am | 3.6 | 57.92 | 49.50 | 32.40 | 83.40 | 7.00 | - | 3 | 8.10 | - |
| 2026-03-15 12:00 am | 3.6 | 57.74 | 49.48 | 32.40 | 84.30 | 7.10 | - | 3 | 8.10 | - |
| 2026-03-14 11:45 pm | 3.6 | 57.38 | 49.49 | 32.40 | 83.70 | 7.10 | - | 3 | 8.10 | - |
| 2026-03-14 11:30 pm | 3.9 | 56.66 | 49.58 | 32.40 | 84.00 | 7.10 | - | 3 | 8.00 | - |
| 2026-03-14 11:15 pm | 3.9 | 56.66 | 49.60 | 32.40 | 85.40 | 7.30 | - | 3 | 8.00 | - |
| 2026-03-14 11:00 pm | 3.9 | 56.66 | 49.63 | 32.50 | 87.30 | 7.40 | - | 3 | 8.00 | - |
| 2026-03-14 10:45 pm | 3.9 | 56.66 | 49.62 | 32.50 | 86.70 | 7.40 | - | 3 | 8.00 | - |
| 2026-03-14 10:30 pm | 4.3 | 56.30 | 49.68 | 32.50 | 86.30 | 7.40 | - | 6 | 8.00 | - |
| 2026-03-14 10:15 pm | 4.3 | 56.30 | 49.67 | 32.50 | 81.10 | 6.90 | - | 4 | 8.00 | - |
| 2026-03-14 10:00 pm | 4.3 | 56.48 | 49.64 | 32.50 | 86.30 | 7.30 | - | 3 | 8.00 | - |
| 2026-03-14 09:45 pm | 4.3 | 56.48 | 49.66 | 32.50 | 88.80 | 7.60 | - | 19 | 8.10 | - |
| 2026-03-14 09:30 pm | 4.3 | 56.48 | 49.64 | 32.50 | 88.70 | 7.50 | - | 12 | 8.10 | - |
| 2026-03-14 09:15 pm | 4.3 | 56.66 | 49.61 | 32.40 | 89.30 | 7.60 | - | 11 | 8.10 | - |
| 2026-03-14 09:00 pm | 3.9 | 56.84 | 49.57 | 32.40 | 89.40 | 7.60 | - | 15 | 8.10 | - |
| 2026-03-14 08:45 pm | 3.9 | 57.02 | 49.55 | 32.40 | 88.60 | 7.50 | - | 12 | 8.10 | - |
| 2026-03-14 08:30 pm | 3.9 | 57.02 | 49.51 | 32.40 | 87.90 | 7.40 | - | 7 | 8.10 | - |
| 2026-03-14 08:15 pm | 3.6 | 57.20 | 49.46 | 32.30 | 87.10 | 7.40 | - | 6 | 8.10 | - |
| 2026-03-14 08:00 pm | 3.6 | 57.38 | 49.43 | 32.30 | 87.20 | 7.30 | - | 4 | 8.10 | - |
| 2026-03-14 07:45 pm | 3.3 | 57.74 | 49.36 | 32.30 | 88.00 | 7.40 | - | 4 | 8.10 | - |
| 2026-03-14 07:30 pm | 3.3 | 58.28 | 49.28 | 32.20 | 89.20 | 7.40 | - | 5 | 8.10 | - |
| 2026-03-14 07:15 pm | 3.0 | 58.82 | 49.20 | 32.20 | 91.00 | 7.60 | - | 4 | 8.10 | - |
| 2026-03-14 07:00 pm | 3.0 | 59.18 | 49.18 | 32.20 | 91.00 | 7.50 | - | 4 | 8.10 | - |
| 2026-03-14 06:45 pm | 2.6 | 59.54 | 49.16 | 32.20 | 91.60 | 7.50 | - | 4 | 8.10 | - |
| 2026-03-14 06:30 pm | 2.6 | 59.90 | 49.18 | 32.20 | 93.30 | 7.70 | - | 4 | 8.10 | - |
| 2026-03-14 06:15 pm | 2.3 | 60.08 | 49.22 | 32.20 | 94.60 | 7.70 | - | 4 | 8.10 | - |
| 2026-03-14 06:00 pm | 2.0 | 60.26 | 49.27 | 32.20 | 95.40 | 7.80 | - | 4 | 8.10 | - |
| 2026-03-14 05:45 pm | 2.0 | 60.44 | 49.39 | 32.30 | 96.10 | 7.80 | - | 4 | 8.10 | - |
| 2026-03-14 05:30 pm | 1.6 | 60.80 | 49.49 | 32.40 | 98.00 | 7.90 | - | 4 | 8.10 | - |
| 2026-03-14 05:15 pm | 1.6 | 61.52 | 49.47 | 32.40 | 105.20 | 8.50 | - | 4 | 8.10 | - |
| 2026-03-14 05:00 pm | 1.3 | 62.42 | 49.39 | 32.40 | 114.50 | 9.10 | - | 5 | 8.20 | - |
| 2026-03-14 04:45 pm | 1.3 | 62.78 | 49.37 | 32.30 | 115.80 | 9.20 | - | 6 | 8.20 | - |
| 2026-03-14 04:30 pm | 1.0 | 63.14 | 49.36 | 32.30 | 117.10 | 9.30 | - | 6 | 8.20 | - |
| 2026-03-14 04:15 pm | 1.0 | 63.50 | 49.33 | 32.30 | 116.10 | 9.10 | - | 7 | 8.20 | - |
| 2026-03-14 04:00 pm | 0.7 | 63.68 | 49.32 | 32.30 | 116.50 | 9.20 | - | 7 | 8.20 | - |
| 2026-03-14 03:45 pm | 0.7 | 63.68 | 49.30 | 32.30 | 116.20 | 9.10 | - | 8 | 8.20 | - |
| 2026-03-14 03:30 pm | 0.7 | 63.68 | 49.30 | 32.30 | 115.20 | 9.10 | - | 8 | 8.20 | - |
| 2026-03-14 03:15 pm | 0.3 | 63.32 | 49.28 | 32.30 | 112.40 | 8.90 | - | 7 | 8.20 | - |
| 2026-03-14 03:00 pm | 0.7 | 63.14 | 49.30 | 32.30 | 98.00 | 7.80 | - | 6 | 8.10 | - |
Historical data for station ELQC1 are available at the NERRS website.
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