Station HWWH1 - Wai 2, He'eia Reserve, HI
Owned and maintained by National Estuarine Research Reserve System
Water Quality Station
21.438 N 157.811 W (21°26'18" N 157°48'39" W)
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Stations with recent data
Stations with no data in last 8 hours
(24 hours for tsunami stations)
Stations with recent data Stations with no data in last 8 hours(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): | 3.3 ft |
 Ocean Temperature (OTMP): | 68.00 °F |
| Oxygen Saturation (O2PCT): | 48.1% |
| Oxygen Concentration (O2PPM): | 4.40 ppm |
| Turbidity (TURB): | 609 FTU |
| pH (PH): | 6.60 |
| TIME (HST) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-02-21 11:00 am | 3.3 | 67.82 | - | - | 52.00 | 4.70 | - | 606 | 6.60 | - |
| 2026-02-21 10:45 am | 3.3 | 68.00 | - | - | 46.90 | 4.30 | - | 601 | 6.60 | - |
| 2026-02-21 10:30 am | 3.3 | 68.00 | - | - | 48.10 | 4.40 | - | 551 | 6.60 | - |
| 2026-02-21 10:15 am | 3.3 | 68.00 | - | - | 46.30 | 4.20 | - | 500 | 6.60 | - |
| 2026-02-21 10:00 am | 3.3 | 68.18 | - | - | 42.60 | 3.90 | - | 471 | 6.60 | - |
| 2026-02-21 09:45 am | 3.3 | 68.18 | - | - | 38.90 | 3.50 | - | 456 | 6.60 | - |
| 2026-02-21 09:30 am | 3.3 | 68.18 | - | - | 34.30 | 3.10 | - | 457 | 6.60 | - |
| 2026-02-21 09:15 am | 3.3 | 68.36 | - | - | 26.70 | 2.40 | - | 447 | 6.60 | - |
| 2026-02-21 09:00 am | 3.3 | 68.36 | - | - | 16.30 | 1.50 | - | 392 | 6.60 | - |
| 2026-02-21 08:45 am | 3.3 | 68.54 | - | - | 10.00 | 0.90 | - | 334 | 6.60 | - |
| 2026-02-21 08:30 am | 3.0 | 68.72 | - | - | 4.20 | 0.40 | - | 264 | 6.60 | - |
| 2026-02-21 08:15 am | 3.0 | 69.08 | - | - | 3.00 | 0.30 | - | 206 | 6.60 | - |
| 2026-02-21 08:00 am | 3.0 | 69.44 | - | - | 27.30 | 2.40 | - | 142 | 6.70 | - |
| 2026-02-21 07:45 am | 2.6 | 69.26 | - | - | 38.30 | 3.40 | - | 153 | 6.80 | - |
| 2026-02-21 07:30 am | 1.6 | 69.26 | - | - | 30.20 | 2.70 | - | 438 | 6.70 | - |
| 2026-02-21 07:15 am | 1.3 | 69.44 | - | - | 56.20 | 5.00 | - | 78 | 6.90 | - |
| 2026-02-21 07:00 am | 1.3 | 69.62 | - | - | 60.00 | 5.40 | - | 32 | 6.90 | - |
| 2026-02-21 06:45 am | 1.3 | 69.80 | - | - | 53.00 | 4.70 | - | 37 | 6.90 | - |
| 2026-02-21 06:30 am | 1.3 | 69.98 | - | - | 40.30 | 3.60 | - | 27 | 6.80 | - |
| 2026-02-21 06:15 am | 1.3 | 69.98 | - | - | 34.80 | 3.10 | - | 23 | 6.80 | - |
| 2026-02-21 06:00 am | 1.3 | 69.98 | - | - | 33.30 | 3.00 | - | 17 | 6.80 | - |
| 2026-02-21 05:45 am | 1.3 | 70.16 | - | - | 33.50 | 3.00 | - | 15 | 6.80 | - |
| 2026-02-21 05:30 am | 1.3 | 70.16 | - | - | 34.40 | 3.10 | - | 14 | 6.80 | - |
| 2026-02-21 05:15 am | 1.3 | 70.16 | - | - | 35.10 | 3.10 | - | 15 | 6.80 | - |
| 2026-02-21 05:00 am | 1.3 | 70.16 | - | - | 37.00 | 3.30 | - | 15 | 6.80 | - |
| 2026-02-21 04:45 am | 1.3 | 70.16 | - | - | 38.40 | 3.40 | - | 16 | 6.80 | - |
| 2026-02-21 04:30 am | 1.0 | 70.16 | - | - | 39.70 | 3.50 | - | 18 | 6.80 | - |
| 2026-02-21 04:15 am | 1.0 | 70.16 | - | - | 40.30 | 3.60 | - | 19 | 6.80 | - |
| 2026-02-21 04:00 am | 1.0 | 70.16 | - | - | 38.10 | 3.40 | - | 19 | 6.80 | - |
| 2026-02-21 03:45 am | 1.3 | 70.16 | - | - | 35.40 | 3.10 | - | 17 | 6.80 | - |
| 2026-02-21 03:30 am | 1.3 | 70.16 | - | - | 33.00 | 2.90 | - | 21 | 6.80 | - |
| 2026-02-21 03:15 am | 1.3 | 70.16 | - | - | 30.40 | 2.70 | - | 19 | 6.80 | - |
| 2026-02-21 03:00 am | 1.0 | 70.16 | - | - | 28.40 | 2.50 | - | 20 | 6.80 | - |
| 2026-02-21 02:45 am | 1.0 | 70.16 | - | - | 28.80 | 2.60 | - | 22 | 6.80 | - |
| 2026-02-21 02:30 am | 1.0 | 70.16 | - | - | 29.80 | 2.60 | - | 23 | 6.80 | - |
| 2026-02-21 02:15 am | 1.0 | 70.16 | - | - | 30.90 | 2.70 | - | 38 | 6.80 | - |
| 2026-02-21 02:00 am | 1.0 | 70.16 | - | - | 31.70 | 2.80 | - | 28 | 6.80 | - |
| 2026-02-21 01:45 am | 0.7 | 70.16 | - | - | 32.30 | 2.90 | - | 31 | 6.80 | - |
| 2026-02-21 01:30 am | 0.7 | 70.16 | - | - | 33.30 | 3.00 | - | 33 | 6.80 | - |
| 2026-02-21 01:15 am | 0.7 | 70.16 | - | - | 34.20 | 3.00 | - | 35 | 6.80 | - |
| 2026-02-21 01:00 am | 0.7 | 70.16 | - | - | 35.40 | 3.10 | - | 37 | 6.90 | - |
| 2026-02-21 12:45 am | 0.3 | 70.16 | - | - | 36.60 | 3.20 | - | 38 | 6.90 | - |
| 2026-02-21 12:30 am | 0.3 | 70.16 | - | - | 37.70 | 3.30 | - | 41 | 6.90 | - |
| 2026-02-21 12:15 am | 0.3 | 70.34 | - | - | 39.00 | 3.50 | - | 41 | 6.90 | - |
| 2026-02-21 12:00 am | 0.3 | 70.34 | - | - | 39.90 | 3.50 | - | 40 | 6.90 | - |
| 2026-02-20 11:45 pm | 0.3 | 70.34 | - | - | 41.20 | 3.70 | - | 41 | 6.90 | - |
| 2026-02-20 11:30 pm | 0.3 | 70.52 | - | - | 42.10 | 3.70 | - | 38 | 6.90 | - |
| 2026-02-20 11:15 pm | 0.3 | 70.70 | - | - | 42.80 | 3.80 | - | 34 | 6.90 | - |
| 2026-02-20 11:00 pm | 0.3 | 70.88 | - | - | 43.70 | 3.90 | - | 25 | 7.00 | - |
| 2026-02-20 10:45 pm | 0.3 | 70.88 | - | - | 44.00 | 3.90 | - | 15 | 7.00 | - |
| 2026-02-20 10:30 pm | 0.3 | 70.88 | - | - | 41.90 | 3.70 | - | 11 | 7.00 | - |
| 2026-02-20 10:15 pm | 0.3 | 70.88 | - | - | 39.30 | 3.50 | - | 9 | 7.00 | - |
| 2026-02-20 10:00 pm | 0.3 | 70.88 | - | - | 38.40 | 3.40 | - | 9 | 6.90 | - |
| 2026-02-20 09:45 pm | 0.3 | 70.88 | - | - | 38.30 | 3.40 | - | 8 | 6.90 | - |
| 2026-02-20 09:30 pm | 0.7 | 70.88 | - | - | 38.20 | 3.30 | - | 8 | 6.90 | - |
| 2026-02-20 09:15 pm | 0.7 | 70.88 | - | - | 38.20 | 3.40 | - | 8 | 7.00 | - |
| 2026-02-20 09:00 pm | 0.7 | 71.06 | - | - | 37.80 | 3.30 | - | 8 | 6.90 | - |
| 2026-02-20 08:45 pm | 0.7 | 71.06 | - | - | 37.90 | 3.30 | - | 8 | 6.90 | - |
| 2026-02-20 08:30 pm | 0.7 | 71.06 | - | - | 37.30 | 3.30 | - | 8 | 7.00 | - |
| 2026-02-20 08:15 pm | 0.7 | 71.24 | - | - | 38.30 | 3.30 | - | 8 | 7.00 | - |
| 2026-02-20 08:00 pm | 0.7 | 71.24 | - | - | 38.20 | 3.30 | - | 8 | 6.80 | - |
| 2026-02-20 07:45 pm | 0.7 | 71.24 | - | - | 37.40 | 3.30 | - | 8 | 6.90 | - |
| 2026-02-20 07:30 pm | 0.7 | 71.24 | - | - | 37.60 | 3.30 | - | 9 | 7.00 | - |
| 2026-02-20 07:15 pm | 0.7 | 71.42 | - | - | 38.80 | 3.40 | - | 9 | 7.10 | - |
| 2026-02-20 07:00 pm | 0.7 | 71.42 | - | - | 38.70 | 3.40 | - | 9 | 6.90 | - |
| 2026-02-20 06:45 pm | 0.7 | 71.42 | - | - | 38.90 | 3.40 | - | 9 | 7.10 | - |
| 2026-02-20 06:30 pm | 0.7 | 71.42 | - | - | 40.70 | 3.60 | - | 9 | 7.10 | - |
| 2026-02-20 06:15 pm | 1.0 | 71.60 | - | - | 45.20 | 3.90 | - | 9 | 7.10 | - |
| 2026-02-20 06:00 pm | 1.0 | 71.78 | 8.40 | - | 52.20 | 4.40 | - | 7 | 7.10 | - |
| 2026-02-20 05:45 pm | 0.7 | 71.96 | 14.32 | 8.30 | 61.90 | 5.10 | - | 6 | 7.20 | - |
| 2026-02-20 05:30 pm | 0.7 | 72.32 | 19.90 | 11.90 | 72.00 | 5.80 | - | 5 | 7.50 | - |
| 2026-02-20 05:15 pm | 0.7 | 72.68 | 25.90 | 15.80 | 81.80 | 6.40 | - | 4 | 7.70 | - |
| 2026-02-20 05:00 pm | 0.7 | 72.68 | 23.59 | 14.30 | 80.70 | 6.40 | - | 4 | 7.70 | - |
| 2026-02-20 04:45 pm | 0.7 | 72.68 | 23.54 | 14.30 | 77.00 | 6.20 | - | 5 | 7.60 | - |
| 2026-02-20 04:30 pm | 0.7 | 72.50 | 18.61 | 11.00 | 71.60 | 5.80 | - | 5 | 7.40 | - |
| 2026-02-20 04:15 pm | 0.7 | 72.50 | 18.07 | 10.70 | 69.30 | 5.70 | - | 6 | 7.30 | - |
| 2026-02-20 04:00 pm | 0.7 | 72.50 | 15.75 | 9.20 | 65.00 | 5.40 | - | 6 | 7.20 | - |
| 2026-02-20 03:45 pm | 0.3 | 72.32 | 12.52 | 7.20 | 62.90 | 5.20 | - | 7 | 7.10 | - |
| 2026-02-20 03:30 pm | 0.3 | 72.32 | 13.67 | 7.90 | 60.80 | 5.10 | - | 7 | 7.00 | - |
| 2026-02-20 03:15 pm | 0.3 | 72.14 | 8.41 | - | 58.70 | 4.90 | - | 7 | 7.10 | - |
| 2026-02-20 03:00 pm | 0.3 | 72.14 | 10.56 | 6.00 | 55.30 | 4.70 | - | 7 | 7.00 | - |
| 2026-02-20 02:45 pm | 0.3 | 71.96 | 6.93 | - | 51.30 | 4.40 | - | 8 | 6.90 | - |
| 2026-02-20 02:30 pm | 0.3 | 71.78 | - | - | 46.40 | 4.00 | - | 9 | 6.90 | - |
| 2026-02-20 02:15 pm | 0.3 | 71.78 | - | - | 43.60 | 3.80 | - | 10 | 6.90 | - |
| 2026-02-20 02:00 pm | 0.3 | 71.60 | - | - | 42.60 | 3.70 | - | 10 | 6.90 | - |
| 2026-02-20 01:45 pm | 0.3 | 71.60 | - | - | 43.00 | 3.80 | - | 11 | 6.90 | - |
| 2026-02-20 01:30 pm | 0.3 | 71.42 | - | - | 44.00 | 3.90 | - | 11 | 6.90 | - |
| 2026-02-20 01:15 pm | 0.3 | 71.60 | - | - | 44.50 | 3.90 | - | 12 | 6.90 | - |
| 2026-02-20 01:00 pm | 0.3 | 71.60 | - | - | 44.80 | 3.90 | - | 12 | 6.90 | - |
| 2026-02-20 12:45 pm | 0.3 | 71.60 | - | - | 46.20 | 4.00 | - | 13 | 7.00 | - |
| 2026-02-20 12:30 pm | 0.3 | 71.60 | - | - | 47.10 | 4.10 | - | 13 | 7.00 | - |
| 2026-02-20 12:15 pm | 0.3 | 71.60 | - | - | 48.60 | 4.20 | - | 12 | 7.00 | - |
| 2026-02-20 12:00 pm | 0.3 | 71.60 | - | - | 50.40 | 4.40 | - | 13 | 7.00 | - |
Historical data for station HWWH1 are available at the NERRS website.
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