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The Future of the Suwannee River SillA Review and Update
S.B. Aicher – USFWS, Okefenokee NWR
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Downstream Flows
Water Quality
Ground-water levels
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Effects of the Sill Downstream
• No significant changes in ground-water levels at wells downgradient.
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Calcium
Chloride
Iron
Magnesium
Silica
Sodium
Tannin and lignin
Solids residue
Strontium
Zinc
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Effects of the Sill Downstream
• No significant changes in ground-water levels at wells downgradient.
• No significant change in concentrations of water-quality constituents in flows at the sill.
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Effects of the Sill Downstream
• No significant changes in ground-water levels at wells downgradient.
• No significant change in concentrations of water-quality constituents in flows at the sill.
• The sill increased the base water levels immediately upstream of the sill by 6 ft.
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Effects of the Sill Downstream
• No significant changes in ground-water levels at wells downgradient.
• No significant change in concentrations of water-quality constituents in flows at the sill.
• The sill increased the base water levels immediately upstream of the sill by 6 ft.
• No significant changes in water levels downstream from the sill.
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Effects of the Sill Downstream
• No significant changes in ground-water levels at wells downgradient.
• No significant change in concentrations of water-quality constituents in flows at the sill.
• The sill increased the base water levels immediately upstream of the sill by 6 ft.
• No significant changes in water levels downstream from the sill.
• The sill decreased the peak flows from the sill to Fargo, Georgia.
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Effects of the Sill Downstream
• No significant changes in ground-water levels at wells downgradient.
• No significant change in concentrations of water-quality constituents in flows at the sill.
• The sill increased the base water levels immediately upstream of the sill by 6 ft.
• No significant changes in water levels downstream from the sill.
• The sill decreased the peak flows from the sill to Fargo, Georgia.
• The sill increased the base flows downstream as far as Blue Sink.
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