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 SAQG1 - Lower Duplin, Sapelo Island Reserve, GA
Owned and maintained by National Estuarine Research Reserve System
NERRS Water Quality Station
31.418 N 81.296 W (31°25'5" N 81°17'46" 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): | 13.1 ft |
 Ocean Temperature (OTMP): | 76.82 °F |
| Conductivity (COND): | 30.03 mS/cm |
| Salinity (SAL): | 18.60 psu |
| Oxygen Concentration (O2PCT): | 73.9% |
| Oxygen Concentration (O2PPM): | 5.50 ppm |
| Turbidity (TURB): | 40 FTU |
| pH (PH): | 7.40 |
| TIME (EDT) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mv |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-04-29 06:45 pm | 12.5 | 76.82 | 30.23 | 18.70 | 74.20 | 5.50 | - | 64 | 7.40 | - |
| 2025-04-29 06:30 pm | 11.8 | 76.82 | 30.27 | 18.80 | 74.30 | 5.50 | - | 65 | 7.30 | - |
| 2025-04-29 06:15 pm | 11.2 | 77.00 | 29.73 | 18.40 | 74.60 | 5.60 | - | 108 | 7.40 | - |
| 2025-04-29 06:00 pm | 10.5 | 77.00 | 27.81 | 17.10 | 77.70 | 5.80 | - | 33 | 7.40 | - |
| 2025-04-29 05:45 pm | 10.2 | 77.72 | 27.64 | 17.00 | 82.30 | 6.10 | - | 52 | 7.40 | - |
| 2025-04-29 05:30 pm | 9.5 | 77.54 | 29.19 | 18.00 | 81.00 | 6.00 | - | 34 | 7.40 | - |
| 2025-04-29 05:15 pm | 9.2 | 77.18 | 29.92 | 18.50 | 74.70 | 5.60 | - | 22 | 7.30 | - |
| 2025-04-29 05:00 pm | 8.9 | 77.00 | 29.89 | 18.50 | 72.50 | 5.40 | - | 15 | 7.30 | - |
| 2025-04-29 04:45 pm | 8.9 | 77.18 | 29.94 | 18.50 | 70.00 | 5.20 | - | 17 | 7.30 | - |
| 2025-04-29 04:30 pm | 8.5 | 77.00 | 29.91 | 18.50 | 67.90 | 5.10 | - | 15 | 7.30 | - |
| 2025-04-29 04:15 pm | 8.9 | 77.00 | 29.91 | 18.50 | 68.40 | 5.10 | - | 17 | 7.30 | - |
| 2025-04-29 04:00 pm | 8.9 | 77.18 | 29.93 | 18.50 | 70.90 | 5.30 | - | 21 | 7.30 | - |
| 2025-04-29 03:45 pm | 9.2 | 77.18 | 29.96 | 18.50 | 71.60 | 5.30 | - | 24 | 7.30 | - |
| 2025-04-29 03:30 pm | 9.5 | 77.18 | 30.00 | 18.60 | 72.00 | 5.30 | - | 29 | 7.30 | - |
| 2025-04-29 03:15 pm | 9.8 | 77.18 | 30.03 | 18.60 | 72.20 | 5.40 | - | 34 | 7.30 | - |
| 2025-04-29 03:00 pm | 10.2 | 77.00 | 30.02 | 18.60 | 72.20 | 5.40 | - | 40 | 7.30 | - |
| 2025-04-29 02:45 pm | 10.5 | 77.00 | 30.18 | 18.70 | 72.50 | 5.40 | - | 61 | 7.30 | - |
| 2025-04-29 02:30 pm | 11.2 | 76.82 | 30.21 | 18.70 | 72.00 | 5.40 | - | 64 | 7.30 | - |
| 2025-04-29 02:15 pm | 11.5 | 76.82 | 30.55 | 19.00 | 71.90 | 5.40 | - | 81 | 7.30 | - |
| 2025-04-29 02:00 pm | 12.1 | 76.64 | 30.83 | 19.10 | 71.90 | 5.40 | - | 70 | 7.40 | - |
| 2025-04-29 01:45 pm | 12.8 | 76.46 | 31.25 | 19.40 | 71.90 | 5.40 | - | 68 | 7.40 | - |
| 2025-04-29 01:30 pm | 13.1 | 76.28 | 31.67 | 19.70 | 72.20 | 5.40 | - | 67 | 7.40 | - |
| 2025-04-29 01:15 pm | 13.8 | 76.28 | 32.45 | 20.30 | 72.90 | 5.40 | - | 88 | 7.40 | - |
| 2025-04-29 01:00 pm | 14.1 | 76.10 | 33.22 | 20.80 | 73.30 | 5.40 | - | 88 | 7.40 | - |
| 2025-04-29 12:45 pm | 14.8 | 75.92 | 33.88 | 21.30 | 73.70 | 5.50 | - | 74 | 7.50 | - |
| 2025-04-29 12:30 pm | 15.4 | 75.74 | 34.36 | 21.60 | 75.10 | 5.60 | - | 60 | 7.50 | - |
| 2025-04-29 12:15 pm | 15.7 | 75.74 | 34.95 | 22.00 | 78.20 | 5.80 | - | 147 | 7.50 | - |
| 2025-04-29 12:00 pm | 16.4 | 75.38 | 36.05 | 22.80 | 75.10 | 5.60 | - | 117 | 7.50 | - |
| 2025-04-29 11:45 am | 16.7 | 75.38 | 36.30 | 22.90 | 76.80 | 5.70 | - | 105 | 7.60 | - |
| 2025-04-29 11:30 am | 17.1 | 75.02 | 37.92 | 24.10 | 78.30 | 5.80 | - | 99 | 7.60 | - |
| 2025-04-29 11:15 am | 17.4 | 75.20 | 37.90 | 24.10 | 79.60 | 5.80 | - | 64 | 7.60 | - |
| 2025-04-29 11:00 am | 17.4 | 75.02 | 39.05 | 24.90 | 77.70 | 5.70 | - | 48 | 7.70 | - |
| 2025-04-29 10:45 am | 17.4 | 75.02 | 38.73 | 24.60 | 80.50 | 5.90 | - | 89 | 7.70 | - |
| 2025-04-29 10:30 am | 17.7 | 75.02 | 38.29 | 24.30 | 80.00 | 5.90 | - | 166 | 7.60 | - |
| 2025-04-29 10:15 am | 17.7 | 75.02 | 37.39 | 23.70 | 77.40 | 5.70 | - | 123 | 7.60 | - |
| 2025-04-29 10:00 am | 17.4 | 75.02 | 36.91 | 23.40 | 76.40 | 5.60 | - | 146 | 7.60 | - |
| 2025-04-29 09:45 am | 17.4 | 75.02 | 36.64 | 23.20 | 76.40 | 5.60 | - | 71 | 7.60 | - |
| 2025-04-29 09:30 am | 17.4 | 75.02 | 36.07 | 22.80 | 74.10 | 5.50 | - | 101 | 7.50 | - |
| 2025-04-29 09:15 am | 17.1 | 75.02 | 35.72 | 22.50 | 71.90 | 5.30 | - | 132 | 7.50 | - |
| 2025-04-29 09:00 am | 17.1 | 75.20 | 35.17 | 22.20 | 69.60 | 5.20 | - | 152 | 7.50 | - |
| 2025-04-29 08:45 am | 16.7 | 75.20 | 34.77 | 21.90 | 68.80 | 5.10 | - | 177 | 7.50 | - |
| 2025-04-29 08:30 am | 16.4 | 75.38 | 34.22 | 21.50 | 68.20 | 5.10 | - | 152 | 7.40 | - |
| 2025-04-29 08:15 am | 15.7 | 75.38 | 32.80 | 20.50 | 67.90 | 5.10 | - | 206 | 7.40 | - |
| 2025-04-29 08:00 am | 15.4 | 75.20 | 32.25 | 20.10 | 68.00 | 5.10 | - | 61 | 7.40 | - |
| 2025-04-29 07:45 am | 14.8 | 75.20 | 32.00 | 20.00 | 69.10 | 5.20 | - | 75 | 7.40 | - |
| 2025-04-29 07:30 am | 14.4 | 75.20 | 31.59 | 19.70 | 66.40 | 5.00 | - | 41 | 7.30 | - |
| 2025-04-29 07:15 am | 13.8 | 75.38 | 31.56 | 19.70 | 64.60 | 4.90 | - | 72 | 7.30 | - |
| 2025-04-29 07:00 am | 13.1 | 75.38 | 31.26 | 19.50 | 64.20 | 4.80 | - | 53 | 7.30 | - |
| 2025-04-29 06:45 am | 12.8 | 75.38 | 31.14 | 19.40 | 64.90 | 4.90 | - | 61 | 7.30 | - |
| 2025-04-29 06:30 am | 12.1 | 75.20 | 30.92 | 19.20 | 64.60 | 4.90 | - | 76 | 7.30 | - |
| 2025-04-29 06:15 am | 11.8 | 75.20 | 29.71 | 18.40 | 65.70 | 5.00 | - | 44 | 7.30 | - |
| 2025-04-29 06:00 am | 11.2 | 75.02 | 29.49 | 18.20 | 66.10 | 5.00 | - | 39 | 7.30 | - |
| 2025-04-29 05:45 am | 10.5 | 75.20 | 29.40 | 18.20 | 65.00 | 4.90 | - | 19 | 7.30 | - |
| 2025-04-29 05:30 am | 10.2 | 75.56 | 30.27 | 18.80 | 62.80 | 4.70 | - | 19 | 7.20 | - |
| 2025-04-29 05:15 am | 9.8 | 75.56 | 30.18 | 18.70 | 61.80 | 4.70 | - | 14 | 7.30 | - |
| 2025-04-29 05:00 am | 9.5 | 75.56 | 30.21 | 18.70 | 59.60 | 4.50 | - | 14 | 7.30 | - |
| 2025-04-29 04:45 am | 9.5 | 75.56 | 30.06 | 18.60 | 61.00 | 4.60 | - | 12 | 7.30 | - |
| 2025-04-29 04:30 am | 9.5 | 75.56 | 30.05 | 18.60 | 62.30 | 4.70 | - | 14 | 7.30 | - |
| 2025-04-29 04:15 am | 9.5 | 75.56 | 30.09 | 18.70 | 62.60 | 4.70 | - | 16 | 7.20 | - |
| 2025-04-29 04:00 am | 9.8 | 75.56 | 30.20 | 18.70 | 62.80 | 4.70 | - | 25 | 7.30 | - |
| 2025-04-29 03:45 am | 9.8 | 75.38 | 30.35 | 18.80 | 63.20 | 4.80 | - | 42 | 7.30 | - |
| 2025-04-29 03:30 am | 10.2 | 75.38 | 30.51 | 18.90 | 62.90 | 4.70 | - | 51 | 7.30 | - |
| 2025-04-29 03:15 am | 10.5 | 75.56 | 30.45 | 18.90 | 63.50 | 4.80 | - | 46 | 7.30 | - |
| 2025-04-29 03:00 am | 11.2 | 75.56 | 30.62 | 19.00 | 63.80 | 4.80 | - | 54 | 7.30 | - |
| 2025-04-29 02:45 am | 11.5 | 75.74 | 30.73 | 19.10 | 64.60 | 4.90 | - | 54 | 7.30 | - |
| 2025-04-29 02:30 am | 12.1 | 75.74 | 30.99 | 19.30 | 65.60 | 4.90 | - | 54 | 7.30 | - |
| 2025-04-29 02:15 am | 12.5 | 75.74 | 31.50 | 19.60 | 66.50 | 5.00 | - | 65 | 7.30 | - |
| 2025-04-29 02:00 am | 13.1 | 75.92 | 31.99 | 19.90 | 67.40 | 5.00 | - | 58 | 7.40 | - |
| 2025-04-29 01:45 am | 13.8 | 75.92 | 32.82 | 20.50 | 68.50 | 5.10 | - | 65 | 7.40 | - |
| 2025-04-29 01:30 am | 14.1 | 75.74 | 34.02 | 21.30 | 69.70 | 5.20 | - | 64 | 7.40 | - |
| 2025-04-29 01:15 am | 14.8 | 75.74 | 35.03 | 22.10 | 70.00 | 5.20 | - | 81 | 7.40 | - |
| 2025-04-29 01:00 am | 15.1 | 75.74 | 35.91 | 22.70 | 71.90 | 5.30 | - | 88 | 7.50 | - |
| 2025-04-29 12:45 am | 15.7 | 75.74 | 37.23 | 23.60 | 75.10 | 5.50 | - | 78 | 7.60 | - |
| 2025-04-29 12:30 am | 16.4 | 75.74 | 38.31 | 24.30 | 77.10 | 5.60 | - | 62 | 7.60 | - |
| 2025-04-29 12:15 am | 16.7 | 75.74 | 39.04 | 24.90 | 78.20 | 5.70 | - | 49 | 7.70 | - |
| 2025-04-29 12:00 am | 17.4 | 75.74 | 40.57 | 25.90 | 81.20 | 5.90 | - | 42 | 7.70 | - |
| 2025-04-28 11:45 pm | 17.7 | 75.92 | 42.26 | 27.10 | 85.20 | 6.10 | - | 34 | 7.80 | - |
| 2025-04-28 11:30 pm | 18.4 | 75.74 | 43.08 | 27.70 | 86.10 | 6.20 | - | 23 | 7.90 | - |
| 2025-04-28 11:15 pm | 18.7 | 75.74 | 44.01 | 28.40 | 88.30 | 6.30 | - | 29 | 7.90 | - |
| 2025-04-28 11:00 pm | 19.0 | 75.74 | 44.30 | 28.60 | 88.90 | 6.30 | - | 31 | 7.90 | - |
| 2025-04-28 10:45 pm | 19.4 | 75.74 | 43.38 | 27.90 | 86.60 | 6.20 | - | 23 | 7.90 | - |
| 2025-04-28 10:30 pm | 19.7 | 75.74 | 44.79 | 29.00 | 89.40 | 6.30 | - | 17 | 7.90 | - |
| 2025-04-28 10:15 pm | 19.7 | 75.74 | 44.81 | 29.00 | 90.30 | 6.40 | - | 34 | 7.90 | - |
| 2025-04-28 10:00 pm | 19.4 | 75.74 | 44.47 | 28.70 | 89.10 | 6.30 | - | 66 | 7.90 | - |
| 2025-04-28 09:45 pm | 19.4 | 75.74 | 44.25 | 28.60 | 89.00 | 6.30 | - | 54 | 7.90 | - |
| 2025-04-28 09:30 pm | 19.0 | 75.92 | 43.88 | 28.30 | 88.20 | 6.30 | - | 80 | 7.90 | - |
| 2025-04-28 09:15 pm | 19.0 | 75.92 | 43.32 | 27.90 | 87.70 | 6.30 | - | 175 | 7.90 | - |
| 2025-04-28 09:00 pm | 18.7 | 76.10 | 41.90 | 26.90 | 87.70 | 6.30 | - | 247 | 7.80 | - |
| 2025-04-28 08:45 pm | 18.7 | 76.28 | 39.63 | 25.30 | 83.90 | 6.00 | - | 255 | 7.70 | - |
| 2025-04-28 08:30 pm | 18.4 | 76.28 | 39.68 | 25.30 | 83.20 | 6.00 | - | 125 | 7.80 | - |
| 2025-04-28 08:15 pm | 18.0 | 76.64 | 37.48 | 23.80 | 80.90 | 5.90 | - | 117 | 7.70 | - |
| 2025-04-28 08:00 pm | 17.7 | 76.82 | 36.83 | 23.30 | 80.30 | 5.80 | - | 144 | 7.60 | - |
| 2025-04-28 07:45 pm | 17.4 | 76.82 | 36.24 | 22.90 | 79.10 | 5.80 | - | 233 | 7.60 | - |
| 2025-04-28 07:30 pm | 16.7 | 76.82 | 34.92 | 22.00 | 77.50 | 5.70 | - | 167 | 7.60 | - |
| 2025-04-28 07:15 pm | 16.4 | 76.46 | 32.76 | 20.50 | 70.20 | 5.20 | - | 322 | 7.50 | - |
| 2025-04-28 07:00 pm | 15.7 | 76.28 | 32.11 | 20.00 | 66.90 | 5.00 | - | 147 | 7.40 | - |
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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