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Florida Keys Canal Remediation Diel Results
As of 11/01/2016
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Plots Two types of plots:
% of measurements during a full day rendering %DO Saturation above 42% and Average of %DO Saturation for a full day of measurements Sampling frequency is 10 min
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Relevant information on improvement (if any)
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Storm events as that of 8/1 to 8/3/2016 impact DO concentrations
Storm events as that of 8/1 to 8/3/2016 impact DO concentrations. These values were not plotted on following slide
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Decoupling of Remediated (C29) from Control canal (C28) after backfilling
C29 displays significant improvement in both, number of readings above 42%DO Saturation and daily average %DO Saturation Average %DO Sat has been at or above 42% since backfilling
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Decoupling of Remediated (C137) from Control canal (C132) after remediation
C137 displays significant improvement in both, number of readings above 42%DO Saturation and daily average %DO Saturation Some low DO values keep occurring after remediation tracking the control canal
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No improvement yet. Remediation effective just since 3/11/16
Monitoring after remediation was performed in June and Sep 2016
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No improvement yet. Although muck removal was completed in 01/16/16, full remediation was effective since 5/20/16 when a weed barrier was installed. Monitoring after remediation was performed in June and Sep 2016 with a shy improving trend appearing since installation of the barrier DO values are still very low.
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Decoupling of Remediated (C277) from Control canal (C282) after backfilling
C29 displays a significant improvement trend in both, number of readings above 42% DO Saturation and daily average %DO Saturation
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No sustained improvement yet. Remediation effective just since 6/6/16
Monitoring after remediation was performed in June and Sep More time is necessary for recovery
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Decoupling of Remediated (C472) from Control canals (C458, 460 and 470) after remediation (culvert installation) is clear, as is the significant degradation in water quality when the culvert was closed. C472 displays significant improvement in both, number of readings above 42%DO Saturation and daily average %DO Saturation Effective remediation stage began on 05/05/16 when the culvert was re-open. After a marked improvement some low DO values keep occurring after remediation tracking the control canals, but sustaining above control levels
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