View the latest observations near Atlantic Tropical Depression Two, East Pacific Tropical Storm Fausto and East Pacific Tropical Storm Elida.
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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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): | 5.6 ft |
 Ocean Temperature (OTMP): | 64.58 °F |
| Conductivity (COND): | 51.82 mS/cm |
| Salinity (SAL): | 34.10 psu |
| Oxygen Saturation (O2PCT): | 95.0% |
| Oxygen Concentration (O2PPM): | 7.30 ppm |
| Turbidity (TURB): | 9 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-19 05:00 pm | 5.6 | 64.40 | 51.77 | 34.10 | 95.20 | 7.40 | - | 7 | 8.00 | - |
| 2026-07-19 04:45 pm | 5.6 | 63.86 | 51.74 | 34.10 | 96.20 | 7.50 | - | 5 | 8.00 | - |
| 2026-07-19 04:30 pm | 5.9 | 64.04 | 51.74 | 34.10 | 96.90 | 7.50 | - | 6 | 8.00 | - |
| 2026-07-19 04:15 pm | 5.9 | 63.68 | 51.68 | 34.00 | 96.30 | 7.50 | - | 7 | 8.00 | - |
| 2026-07-19 04:00 pm | 5.9 | 63.86 | 51.71 | 34.10 | 98.80 | 7.70 | - | 6 | 8.00 | - |
| 2026-07-19 03:45 pm | 5.9 | 64.04 | 51.71 | 34.10 | 100.10 | 7.80 | - | 5 | 8.00 | - |
| 2026-07-19 03:30 pm | 5.9 | 64.22 | 51.77 | 34.10 | 97.40 | 7.50 | - | 6 | 8.00 | - |
| 2026-07-19 03:15 pm | 5.6 | 64.94 | 51.78 | 34.10 | 95.00 | 7.30 | - | 8 | 8.00 | - |
| 2026-07-19 03:00 pm | 5.6 | 65.48 | 51.78 | 34.10 | 94.10 | 7.20 | - | 7 | 8.00 | - |
| 2026-07-19 02:45 pm | 5.2 | 65.84 | 51.85 | 34.20 | 90.40 | 6.90 | - | 10 | 8.00 | - |
| 2026-07-19 02:30 pm | 5.2 | 66.38 | 51.91 | 34.20 | 88.50 | 6.70 | - | 11 | 8.00 | - |
| 2026-07-19 02:15 pm | 4.9 | 66.92 | 51.99 | 34.30 | 86.50 | 6.50 | - | 11 | 7.90 | - |
| 2026-07-19 02:00 pm | 4.9 | 67.28 | 52.06 | 34.30 | 84.40 | 6.30 | - | 13 | 7.90 | - |
| 2026-07-19 01:45 pm | 4.6 | 67.64 | 52.09 | 34.40 | 83.00 | 6.20 | - | 11 | 7.90 | - |
| 2026-07-19 01:30 pm | 4.3 | 68.18 | 52.17 | 34.40 | 81.40 | 6.00 | - | 13 | 7.90 | - |
| 2026-07-19 01:15 pm | 4.3 | 68.54 | 52.28 | 34.50 | 78.70 | 5.80 | - | 15 | 7.90 | - |
| 2026-07-19 01:00 pm | 3.9 | 68.54 | 52.32 | 34.50 | 76.40 | 5.60 | - | 15 | 7.90 | - |
| 2026-07-19 12:45 pm | 3.6 | 68.72 | 52.37 | 34.60 | 74.50 | 5.50 | - | 13 | 7.90 | - |
| 2026-07-19 12:30 pm | 3.6 | 68.72 | 52.40 | 34.60 | 72.40 | 5.30 | - | 14 | 7.90 | - |
| 2026-07-19 12:15 pm | 3.3 | 68.72 | 52.45 | 34.60 | 70.00 | 5.20 | - | 12 | 7.90 | - |
| 2026-07-19 12:00 pm | 3.3 | 68.72 | 52.46 | 34.60 | 67.90 | 5.00 | - | 13 | 7.90 | - |
| 2026-07-19 11:45 am | 3.0 | 68.72 | 52.45 | 34.60 | 64.70 | 4.80 | - | 12 | 7.90 | - |
| 2026-07-19 11:30 am | 2.6 | 68.72 | 52.48 | 34.60 | 62.70 | 4.60 | - | 11 | 7.90 | - |
| 2026-07-19 11:15 am | 2.6 | 68.72 | 52.48 | 34.60 | 62.10 | 4.60 | - | 11 | 7.90 | - |
| 2026-07-19 11:00 am | 2.3 | 68.72 | 52.52 | 34.70 | 61.10 | 4.50 | - | 10 | 7.90 | - |
| 2026-07-19 10:45 am | 2.3 | 68.36 | 52.52 | 34.70 | 61.20 | 4.50 | - | 8 | 7.90 | - |
| 2026-07-19 10:30 am | 2.0 | 68.36 | 52.45 | 34.60 | 62.80 | 4.60 | - | 9 | 7.90 | - |
| 2026-07-19 10:15 am | 2.0 | 68.36 | 52.45 | 34.60 | 64.60 | 4.80 | - | 8 | 7.90 | - |
| 2026-07-19 10:00 am | 1.6 | 68.18 | 52.47 | 34.60 | 63.00 | 4.70 | - | 8 | 7.90 | - |
| 2026-07-19 09:45 am | 1.6 | 68.18 | 52.48 | 34.60 | 63.60 | 4.70 | - | 8 | 7.90 | - |
| 2026-07-19 09:30 am | 1.6 | 68.18 | 52.48 | 34.60 | 62.30 | 4.60 | - | 7 | 7.90 | - |
| 2026-07-19 09:15 am | 1.6 | 68.18 | 52.49 | 34.60 | 63.80 | 4.70 | - | 8 | 7.90 | - |
| 2026-07-19 09:00 am | 1.3 | 68.36 | 52.53 | 34.70 | 64.50 | 4.80 | - | 8 | 7.90 | - |
| 2026-07-19 08:45 am | 1.3 | 68.54 | 52.53 | 34.70 | 61.60 | 4.50 | - | 8 | 7.90 | - |
| 2026-07-19 08:30 am | 1.3 | 68.54 | 52.53 | 34.70 | 59.90 | 4.40 | - | 7 | 7.90 | - |
| 2026-07-19 08:15 am | 1.3 | 68.54 | 52.53 | 34.70 | 64.80 | 4.80 | - | 7 | 7.90 | - |
| 2026-07-19 08:00 am | 1.3 | 68.54 | 52.52 | 34.70 | 65.80 | 4.90 | - | 8 | 7.90 | - |
| 2026-07-19 07:45 am | 1.6 | 68.54 | 52.48 | 34.60 | 67.70 | 5.00 | - | 9 | 7.90 | - |
| 2026-07-19 07:30 am | 2.0 | 68.36 | 52.46 | 34.60 | 68.20 | 5.00 | - | 10 | 7.90 | - |
| 2026-07-19 07:15 am | 2.0 | 68.36 | 52.46 | 34.60 | 68.50 | 5.10 | - | 10 | 7.90 | - |
| 2026-07-19 07:00 am | 2.3 | 68.36 | 52.44 | 34.60 | 69.70 | 5.20 | - | 11 | 7.90 | - |
| 2026-07-19 06:45 am | 2.6 | 68.36 | 52.39 | 34.60 | 70.70 | 5.20 | - | 10 | 7.90 | - |
| 2026-07-19 06:30 am | 3.0 | 68.18 | 52.41 | 34.60 | 70.40 | 5.20 | - | 10 | 7.90 | - |
| 2026-07-19 06:15 am | 3.3 | 68.54 | 52.38 | 34.60 | 72.80 | 5.40 | - | 8 | 7.90 | - |
| 2026-07-19 06:00 am | 3.3 | 68.54 | 52.39 | 34.60 | 74.00 | 5.50 | - | 6 | 7.90 | - |
| 2026-07-19 05:45 am | 3.6 | 68.36 | 52.33 | 34.50 | 75.30 | 5.60 | - | 6 | 7.90 | - |
| 2026-07-19 05:30 am | 3.9 | 68.54 | 52.34 | 34.50 | 77.50 | 5.70 | - | 5 | 8.00 | - |
| 2026-07-19 05:15 am | 3.9 | 68.54 | 52.34 | 34.50 | 78.50 | 5.80 | - | 5 | 8.00 | - |
| 2026-07-19 05:00 am | 4.3 | 68.72 | 52.37 | 34.60 | 80.50 | 5.90 | - | 5 | 8.00 | - |
| 2026-07-19 04:45 am | 4.3 | 68.18 | 52.24 | 34.50 | 81.00 | 6.00 | - | 5 | 8.00 | - |
| 2026-07-19 04:30 am | 4.6 | 68.00 | 52.22 | 34.40 | 83.60 | 6.20 | - | 5 | 8.00 | - |
| 2026-07-19 04:15 am | 4.6 | 67.28 | 52.12 | 34.40 | 84.00 | 6.30 | - | 6 | 8.00 | - |
| 2026-07-19 04:00 am | 4.9 | 67.28 | 52.19 | 34.40 | 76.20 | 5.70 | - | 8 | 7.90 | - |
| 2026-07-19 03:45 am | 4.9 | 67.10 | 52.15 | 34.40 | 81.10 | 6.10 | - | 6 | 7.90 | - |
| 2026-07-19 03:30 am | 5.2 | 67.10 | 52.10 | 34.40 | 75.40 | 5.70 | - | 5 | 7.90 | - |
| 2026-07-19 03:15 am | 5.2 | 67.28 | 52.27 | 34.50 | 67.40 | 5.00 | - | 8 | 7.90 | - |
| 2026-07-19 03:00 am | 5.2 | 66.38 | 51.95 | 34.20 | 89.40 | 6.80 | - | - | 8.00 | - |
| 2026-07-19 02:45 am | 5.2 | 66.38 | 51.95 | 34.20 | 89.80 | 6.80 | - | 5 | 8.00 | - |
| 2026-07-19 02:30 am | 5.2 | 66.38 | 51.94 | 34.20 | 92.80 | 7.00 | - | 6 | 8.00 | - |
| 2026-07-19 02:15 am | 5.2 | 66.56 | 51.92 | 34.20 | 94.30 | 7.10 | - | 8 | 8.00 | - |
| 2026-07-19 02:00 am | 5.2 | 66.92 | 51.93 | 34.20 | 94.10 | 7.10 | - | 9 | 8.00 | - |
| 2026-07-19 01:45 am | 4.9 | 67.10 | 51.96 | 34.30 | 92.90 | 7.00 | - | 7 | 8.00 | - |
| 2026-07-19 01:30 am | 4.9 | 67.46 | 52.00 | 34.30 | 93.90 | 7.00 | - | 8 | 8.00 | - |
| 2026-07-19 01:15 am | 4.9 | 67.82 | 52.02 | 34.30 | 93.10 | 6.90 | - | 7 | 8.00 | - |
| 2026-07-19 01:00 am | 4.6 | 68.18 | 52.06 | 34.30 | 95.10 | 7.10 | - | 7 | 8.00 | - |
| 2026-07-19 12:45 am | 4.6 | 68.54 | 52.11 | 34.40 | 94.90 | 7.00 | - | 7 | 8.00 | - |
| 2026-07-19 12:30 am | 4.3 | 68.72 | 52.14 | 34.40 | 94.80 | 7.00 | - | 8 | 8.00 | - |
| 2026-07-19 12:15 am | 4.3 | 69.26 | 52.19 | 34.40 | 94.50 | 6.90 | - | 7 | 8.00 | - |
| 2026-07-19 12:00 am | 3.9 | 69.26 | 52.18 | 34.40 | 93.80 | 6.90 | - | 10 | 8.00 | - |
| 2026-07-18 11:45 pm | 3.9 | 69.62 | 52.23 | 34.40 | 96.00 | 7.00 | - | 8 | 8.00 | - |
| 2026-07-18 11:30 pm | 3.6 | 69.80 | 52.26 | 34.50 | 96.20 | 7.00 | - | 8 | 8.00 | - |
| 2026-07-18 11:15 pm | 3.6 | 69.98 | 52.28 | 34.50 | 96.70 | 7.00 | - | 9 | 8.00 | - |
| 2026-07-18 11:00 pm | 3.6 | 70.16 | 52.32 | 34.50 | 97.50 | 7.10 | - | 10 | 8.00 | - |
| 2026-07-18 10:45 pm | 3.3 | 70.34 | 52.34 | 34.50 | 98.20 | 7.10 | - | 8 | 8.00 | - |
| 2026-07-18 10:30 pm | 3.3 | 70.16 | 52.33 | 34.50 | 100.40 | 7.30 | - | 9 | 8.10 | - |
| 2026-07-18 10:15 pm | 3.3 | 70.16 | 52.32 | 34.50 | 100.80 | 7.30 | - | 8 | 8.10 | - |
| 2026-07-18 10:00 pm | 3.0 | 70.34 | 52.34 | 34.50 | 102.10 | 7.40 | - | 8 | 8.10 | - |
| 2026-07-18 09:45 pm | 3.0 | 70.52 | 52.37 | 34.60 | 103.40 | 7.50 | - | 8 | 8.10 | - |
| 2026-07-18 09:30 pm | 3.0 | 70.70 | 52.40 | 34.60 | 105.60 | 7.60 | - | 7 | 8.10 | - |
| 2026-07-18 09:15 pm | 2.6 | 71.06 | 52.43 | 34.60 | 109.10 | 7.80 | - | 7 | 8.10 | - |
| 2026-07-18 09:00 pm | 2.6 | 71.24 | 52.43 | 34.60 | 106.30 | 7.60 | - | 7 | 8.10 | - |
| 2026-07-18 08:45 pm | 2.6 | 71.24 | 52.43 | 34.60 | 107.70 | 7.70 | - | 7 | 8.10 | - |
| 2026-07-18 08:30 pm | 2.6 | 71.24 | 52.43 | 34.60 | 109.60 | 7.90 | - | 7 | 8.10 | - |
| 2026-07-18 08:15 pm | 3.0 | 71.24 | 52.44 | 34.60 | 111.10 | 8.00 | - | 6 | 8.10 | - |
| 2026-07-18 08:00 pm | 3.0 | 71.24 | 52.41 | 34.60 | 110.30 | 7.90 | - | 7 | 8.10 | - |
| 2026-07-18 07:45 pm | 3.3 | 71.24 | 52.40 | 34.60 | 111.40 | 8.00 | - | 7 | 8.10 | - |
| 2026-07-18 07:30 pm | 3.3 | 71.42 | 52.40 | 34.60 | 113.50 | 8.10 | - | 8 | 8.10 | - |
| 2026-07-18 07:15 pm | 3.6 | 71.24 | 52.24 | 34.50 | 115.00 | 8.30 | - | 8 | 8.10 | - |
| 2026-07-18 07:00 pm | 3.6 | 71.42 | 52.38 | 34.60 | 113.00 | 8.10 | - | 8 | 8.10 | - |
| 2026-07-18 06:45 pm | 3.9 | 71.42 | 52.36 | 34.50 | 116.60 | 8.40 | - | 7 | 8.10 | - |
| 2026-07-18 06:30 pm | 3.9 | 71.42 | 52.37 | 34.50 | 112.60 | 8.10 | - | 7 | 8.10 | - |
| 2026-07-18 06:15 pm | 4.3 | 71.42 | 52.34 | 34.50 | 113.40 | 8.10 | - | 7 | 8.10 | - |
| 2026-07-18 06:00 pm | 4.3 | 71.06 | 52.33 | 34.50 | 110.20 | 7.90 | - | 7 | 8.10 | - |
Historical data for station ELQC1 are available at the NERRS website.
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