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30-Days of Pre-Aeration Dissolved Oxygen at the Fernhill Wetlands Outfall (453016123052400)

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The Fernhill Wetlands outfall discharges to the Tualatin River downstream of Fern Hill Road at river mile 55.2. Data are collected on the half hour. Periods with no data are plotted as grey areas.

In the graph below, "Data" are the raw data, "No supersat." are the half-hourly data with a ceiling of 100% saturation, "7-day mean" represents the 7-day running average with no credit for supersaturation, "7-day mean min" is the 7-day running average of daily minima with no credit for supersaturation, and "30-day mean" is the 30-day running average with no credit for supersaturation. The red line will often plot on top of the black one. If the 7-day or 30-day lines are not plotted, it is due to missing data in that period. "Saturation" represents the 100% saturation value for dissolved oxygen.

These data are provisional and are subject to revision.

Graph updated: Wednesday - Jul 15, 2020 at 13:01:29 EDT

graph of pre-aeration dissolved oxygen


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