NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.
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): | 2.0 ft |
 Ocean Temperature (OTMP): | 63.68 °F |
| Conductivity (COND): | 47.76 mS/cm |
| Salinity (SAL): | 31.20 psu |
| Oxygen Concentration (O2PCT): | 137.9% |
| Oxygen Concentration (O2PPM): | 10.90 ppm |
| Turbidity (TURB): | 7 FTU |
| pH (PH): | 8.30 |
| TIME (PDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mv |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-03-30 06:00 pm | 1.6 | 63.68 | 47.73 | 31.20 | 140.20 | 11.10 | - | 6 | 8.30 | - |
| 2025-03-30 05:45 pm | 1.6 | 63.86 | 47.71 | 31.10 | 138.50 | 11.00 | - | 4 | 8.30 | - |
| 2025-03-30 05:30 pm | 1.6 | 63.68 | 47.72 | 31.10 | 143.20 | 11.30 | - | 7 | 8.30 | - |
| 2025-03-30 05:15 pm | 1.6 | 63.68 | 47.73 | 31.20 | 143.40 | 11.40 | - | 7 | 8.30 | - |
| 2025-03-30 05:00 pm | 2.0 | 63.68 | 47.74 | 31.20 | 142.70 | 11.30 | - | 8 | 8.30 | - |
| 2025-03-30 04:45 pm | 2.3 | 63.50 | 47.76 | 31.20 | 143.00 | 11.30 | - | 9 | 8.30 | - |
| 2025-03-30 04:30 pm | 2.3 | 63.50 | 47.78 | 31.20 | 143.60 | 11.40 | - | 7 | 8.30 | - |
| 2025-03-30 04:15 pm | 2.6 | 63.50 | 47.81 | 31.20 | 146.50 | 11.60 | - | 8 | 8.30 | - |
| 2025-03-30 04:00 pm | 3.0 | 63.14 | 47.88 | 31.30 | 142.40 | 11.30 | - | 8 | 8.30 | - |
| 2025-03-30 03:45 pm | 3.0 | 62.78 | 47.93 | 31.30 | 140.60 | 11.20 | - | 9 | 8.30 | - |
| 2025-03-30 03:30 pm | 3.3 | 62.42 | 47.78 | 31.20 | 134.00 | 10.80 | - | 6 | 8.20 | - |
| 2025-03-30 03:15 pm | 3.6 | 62.24 | 47.95 | 31.30 | 129.60 | 10.40 | - | 5 | 8.20 | - |
| 2025-03-30 03:00 pm | 3.6 | 62.06 | 47.93 | 31.30 | 127.00 | 10.20 | - | 4 | 8.20 | - |
| 2025-03-30 02:45 pm | 3.9 | 61.70 | 47.85 | 31.20 | 122.20 | 9.90 | - | 5 | 8.20 | - |
| 2025-03-30 02:30 pm | 4.3 | 61.16 | 47.92 | 31.30 | 118.50 | 9.60 | - | 5 | 8.10 | - |
| 2025-03-30 02:15 pm | 4.3 | 60.80 | 48.03 | 31.30 | 114.10 | 9.30 | - | 6 | 8.10 | - |
| 2025-03-30 02:00 pm | 4.6 | 60.26 | 48.18 | 31.50 | 111.30 | 9.10 | - | 6 | 8.10 | - |
| 2025-03-30 01:45 pm | 4.6 | 59.54 | 48.32 | 31.50 | 111.90 | 9.30 | - | 4 | 8.10 | - |
| 2025-03-30 01:30 pm | 4.9 | 58.10 | 48.55 | 31.70 | 103.40 | 8.70 | - | 4 | 8.00 | - |
| 2025-03-30 01:15 pm | 4.9 | 57.02 | 48.70 | 31.80 | 94.50 | 8.00 | - | 4 | 8.00 | - |
| 2025-03-30 01:00 pm | 5.2 | 56.66 | 48.76 | 31.80 | 94.50 | 8.10 | - | 4 | 8.00 | - |
| 2025-03-30 12:45 pm | 5.2 | 56.30 | 48.89 | 31.90 | 94.00 | 8.00 | - | 4 | 7.90 | - |
| 2025-03-30 12:30 pm | 5.2 | 56.12 | 48.90 | 31.90 | 91.20 | 7.80 | - | 3 | 7.90 | - |
| 2025-03-30 12:15 pm | 5.2 | 56.30 | 48.86 | 31.90 | 93.10 | 8.00 | - | 4 | 7.90 | - |
| 2025-03-30 12:00 pm | 5.2 | 56.66 | 48.73 | 31.80 | 91.50 | 7.80 | - | 4 | 7.90 | - |
| 2025-03-30 11:45 am | 4.9 | 57.20 | 48.58 | 31.70 | 92.70 | 7.90 | - | 4 | 8.00 | - |
| 2025-03-30 11:30 am | 4.9 | 57.38 | 48.46 | 31.60 | 92.10 | 7.80 | - | 4 | 8.00 | - |
| 2025-03-30 11:15 am | 4.6 | 57.92 | 48.28 | 31.50 | 90.50 | 7.60 | - | 4 | 8.00 | - |
| 2025-03-30 11:00 am | 4.6 | 58.46 | 48.15 | 31.40 | 89.60 | 7.50 | - | 4 | 8.00 | - |
| 2025-03-30 10:45 am | 4.3 | 58.64 | 48.05 | 31.30 | 89.80 | 7.50 | - | 5 | 8.00 | - |
| 2025-03-30 10:30 am | 3.9 | 58.82 | 47.97 | 31.30 | 88.80 | 7.40 | - | 6 | 8.00 | - |
| 2025-03-30 10:15 am | 3.6 | 58.82 | 47.90 | 31.20 | 88.80 | 7.40 | - | 6 | 8.00 | - |
| 2025-03-30 10:00 am | 3.6 | 59.00 | 47.80 | 31.20 | 88.30 | 7.40 | - | 6 | 8.00 | - |
| 2025-03-30 09:45 am | 3.3 | 59.18 | 47.74 | 31.10 | 88.60 | 7.40 | - | 6 | 8.00 | - |
| 2025-03-30 09:30 am | 3.0 | 59.36 | 47.67 | 31.10 | 88.30 | 7.30 | - | 6 | 8.00 | - |
| 2025-03-30 09:15 am | 2.6 | 59.36 | 47.62 | 31.00 | 87.00 | 7.20 | - | 6 | 8.00 | - |
| 2025-03-30 09:00 am | 2.6 | 59.54 | 47.58 | 31.00 | 86.90 | 7.20 | - | 7 | 8.00 | - |
| 2025-03-30 08:45 am | 2.3 | 59.54 | 47.65 | 31.10 | 86.70 | 7.20 | - | 7 | 8.00 | - |
| 2025-03-30 08:30 am | 2.0 | 59.36 | 47.74 | 31.10 | 86.70 | 7.20 | - | 7 | 8.00 | - |
| 2025-03-30 08:15 am | 2.0 | 59.36 | 47.75 | 31.10 | 86.50 | 7.20 | - | 5 | 8.00 | - |
| 2025-03-30 08:00 am | 1.6 | 59.36 | 47.73 | 31.10 | 86.20 | 7.20 | - | 6 | 8.00 | - |
| 2025-03-30 07:45 am | 1.3 | 59.36 | 47.70 | 31.10 | 85.50 | 7.10 | - | 7 | 8.00 | - |
| 2025-03-30 07:30 am | 1.0 | 59.36 | 47.71 | 31.10 | 84.40 | 7.00 | - | 6 | 8.00 | - |
| 2025-03-30 07:15 am | 1.0 | 59.36 | 47.70 | 31.10 | 84.10 | 7.00 | - | 6 | 8.00 | - |
| 2025-03-30 07:00 am | 0.7 | 59.72 | 47.60 | 31.00 | 82.90 | 6.90 | - | 7 | 8.00 | - |
| 2025-03-30 06:45 am | 0.3 | 59.90 | 47.58 | 31.00 | 76.60 | 6.30 | - | 8 | 8.00 | - |
| 2025-03-30 06:30 am | 0.3 | 59.90 | 47.57 | 31.00 | 78.00 | 6.40 | - | 7 | 8.00 | - |
| 2025-03-30 06:15 am | 0.3 | 59.90 | 47.56 | 31.00 | 76.30 | 6.30 | - | 7 | 8.00 | - |
| 2025-03-30 06:00 am | 0.3 | 59.90 | 47.56 | 31.00 | 82.20 | 6.80 | - | 8 | 8.00 | - |
| 2025-03-30 05:45 am | 0.0 | 60.08 | 47.54 | 31.00 | 81.10 | 6.70 | - | 9 | 8.00 | - |
| 2025-03-30 05:30 am | 0.3 | 60.26 | 47.55 | 31.00 | 83.60 | 6.90 | - | 6 | 8.00 | - |
| 2025-03-30 05:15 am | 0.3 | 60.26 | 47.56 | 31.00 | 86.30 | 7.10 | - | 6 | 8.10 | - |
| 2025-03-30 05:00 am | 0.7 | 60.44 | 47.53 | 31.00 | 89.90 | 7.40 | - | 8 | 8.10 | - |
| 2025-03-30 04:45 am | 1.3 | 60.44 | 47.52 | 31.00 | 94.40 | 7.80 | - | 11 | 8.10 | - |
| 2025-03-30 04:30 am | 1.6 | 60.26 | 47.57 | 31.00 | 97.60 | 8.00 | - | 8 | 8.10 | - |
| 2025-03-30 04:15 am | 2.3 | 60.44 | 47.56 | 31.00 | 99.00 | 8.10 | - | 7 | 8.10 | - |
| 2025-03-30 04:00 am | 2.6 | 60.44 | 47.56 | 31.00 | 100.60 | 8.30 | - | 5 | 8.10 | - |
| 2025-03-30 03:45 am | 3.0 | 60.08 | 47.70 | 31.10 | 100.40 | 8.30 | - | 4 | 8.10 | - |
| 2025-03-30 03:30 am | 3.3 | 60.26 | 47.64 | 31.10 | 103.10 | 8.50 | - | 4 | 8.10 | - |
| 2025-03-30 03:15 am | 3.6 | 60.44 | 47.66 | 31.10 | 104.30 | 8.60 | - | 4 | 8.10 | - |
| 2025-03-30 03:00 am | 3.9 | 60.44 | 47.64 | 31.10 | 104.60 | 8.60 | - | 4 | 8.10 | - |
| 2025-03-30 02:45 am | 4.3 | 60.44 | 47.68 | 31.10 | 104.50 | 8.60 | - | 4 | 8.10 | - |
| 2025-03-30 02:30 am | 4.3 | 60.44 | 47.71 | 31.10 | 104.30 | 8.60 | - | 4 | 8.10 | - |
| 2025-03-30 02:15 am | 4.6 | 59.72 | 47.87 | 31.20 | 102.00 | 8.40 | - | 4 | 8.10 | - |
| 2025-03-30 02:00 am | 4.9 | 59.54 | 48.02 | 31.30 | 101.70 | 8.40 | - | 5 | 8.10 | - |
| 2025-03-30 01:45 am | 5.2 | 57.38 | 48.72 | 31.80 | 98.30 | 8.30 | - | 4 | 8.00 | - |
| 2025-03-30 01:30 am | 5.2 | 57.02 | 48.84 | 31.90 | 99.00 | 8.40 | - | 4 | 8.00 | - |
| 2025-03-30 01:15 am | 5.6 | 56.48 | 49.01 | 32.00 | 99.70 | 8.50 | - | 3 | 8.00 | - |
| 2025-03-30 01:00 am | 5.9 | 56.12 | 49.09 | 32.10 | 98.80 | 8.40 | - | 3 | 8.00 | - |
| 2025-03-30 12:45 am | 5.9 | 55.94 | 49.14 | 32.10 | 84.50 | 7.20 | - | 4 | 7.90 | - |
| 2025-03-30 12:30 am | 6.2 | 55.94 | 49.14 | 32.10 | 92.50 | 7.90 | - | 3 | 8.00 | - |
| 2025-03-30 12:15 am | 6.2 | 55.94 | 49.14 | 32.10 | 98.40 | 8.40 | - | 3 | 8.00 | - |
| 2025-03-30 12:00 am | 6.6 | 56.12 | 49.10 | 32.10 | 100.00 | 8.60 | - | 6 | 8.00 | - |
| 2025-03-29 11:45 pm | 6.6 | 56.30 | 49.09 | 32.10 | 101.50 | 8.70 | - | 4 | 8.00 | - |
| 2025-03-29 11:30 pm | 6.2 | 56.30 | 49.06 | 32.00 | 100.50 | 8.60 | - | 4 | 8.00 | - |
| 2025-03-29 11:15 pm | 6.2 | 56.48 | 49.01 | 32.00 | 101.00 | 8.60 | - | 4 | 8.00 | - |
| 2025-03-29 11:00 pm | 6.2 | 56.84 | 48.92 | 31.90 | 102.30 | 8.70 | - | 4 | 8.00 | - |
| 2025-03-29 10:45 pm | 5.9 | 57.20 | 48.81 | 31.90 | 103.50 | 8.80 | - | 5 | 8.00 | - |
| 2025-03-29 10:30 pm | 5.6 | 57.56 | 48.72 | 31.80 | 104.70 | 8.80 | - | 5 | 8.00 | - |
| 2025-03-29 10:15 pm | 5.2 | 57.92 | 48.65 | 31.80 | 105.80 | 8.90 | - | 7 | 8.00 | - |
| 2025-03-29 10:00 pm | 5.2 | 59.00 | 48.42 | 31.60 | 107.50 | 8.90 | - | 6 | 8.10 | - |
| 2025-03-29 09:45 pm | 4.9 | 59.72 | 48.23 | 31.50 | 109.90 | 9.10 | - | 6 | 8.10 | - |
| 2025-03-29 09:30 pm | 4.6 | 60.26 | 48.06 | 31.40 | 112.10 | 9.20 | - | 6 | 8.10 | - |
| 2025-03-29 09:15 pm | 4.3 | 60.98 | 47.90 | 31.30 | 114.90 | 9.40 | - | 6 | 8.10 | - |
| 2025-03-29 09:00 pm | 3.9 | 61.52 | 47.71 | 31.10 | 117.30 | 9.50 | - | 6 | 8.20 | - |
| 2025-03-29 08:45 pm | 3.9 | 62.06 | 47.54 | 31.00 | 118.40 | 9.50 | - | 6 | 8.20 | - |
| 2025-03-29 08:30 pm | 3.6 | 62.60 | 47.41 | 30.90 | 119.00 | 9.60 | - | 6 | 8.20 | - |
| 2025-03-29 08:15 pm | 3.3 | 62.78 | 47.33 | 30.90 | 120.70 | 9.70 | - | 6 | 8.20 | - |
| 2025-03-29 08:00 pm | 3.0 | 62.96 | 47.24 | 30.80 | 122.40 | 9.80 | - | 6 | 8.20 | - |
| 2025-03-29 07:45 pm | 2.6 | 63.32 | 47.19 | 30.80 | 124.00 | 9.90 | - | 6 | 8.20 | - |
| 2025-03-29 07:30 pm | 2.6 | 63.32 | 47.20 | 30.80 | 127.80 | 10.20 | - | 7 | 8.20 | - |
| 2025-03-29 07:15 pm | 2.3 | 63.50 | 47.28 | 30.80 | 130.80 | 10.40 | - | 6 | 8.20 | - |
| 2025-03-29 07:00 pm | 2.0 | 63.50 | 47.32 | 30.90 | 133.30 | 10.60 | - | 7 | 8.30 | - |
Links which are specific to this station are listed below:
Real Time Data in tabular form for the last forty-five days.
Historical Data & Climatic Summaries for quality controlled data for prior months and years.
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