[PPT] - Quantifiable Objectives Update Quantifiable Objectives Update PowerPoint Presentation

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Quantifiable Objectives Update Homosassa River Quantifiable Objectives Update Homosassa River

Chris J. Anastasiou, Ph.D.

Chief Scientist Natural Systems and Restoration Bureau Southwest Florida Water Management District

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Quantifiable Objectives

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Water Clarity

– River Average >20 feet – Near Headsprings >40 feet

Nitrogen Concentrations

– Springs TMDL <0.23mg/L Nitrate

Water Quality Quantifiable Objectives WATER QUALITY

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Ammonia (N) (Total) Calcium (Dissolved) Carbon‐Total Organic (Total) Chlorophyll a (Total) Color (Dissolved) Depth (Total) Depth, bottom (Total) Dissolved Oxygen (Total) Iron (Dissolved) Magnesium (Dissolved) Nitrate‐Nitrite (N) (Total) Nitrite (N) (Total) Nitrogen‐ Total (Total) Orthophosphate (P) (Dissolved) pH (Total) Phaeophytin (Total) Phosphorus‐ Total (Total) Potassium (Dissolved) Residues‐ Nonfilterable (TSS) (Total) Residues‐ Volatile (Total) Salinity (Total) Secchi‐horizontal (Total) Sodium (Dissolved) Specific Conductance (Total) Temperature (Total) Turbidity (Total)

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Ammonia (N) (Total) Calcium (Dissolved) Carbon‐Total Organic (Total) Chlorophyll a (Total) Color (Dissolved) Depth (Total) Depth, bottom (Total) Dissolved Oxygen (Total) Iron (Dissolved) Magnesium (Dissolved) Nitrate‐Nitrite (N) (Total) Nitrite (N) (Total) Nitrogen‐ Total (Total) Orthophosphate (P) (Dissolved) pH (Total) Phaeophytin (Total) Phosphorus‐ Total (Total) Potassium (Dissolved) Residues‐ Nonfilterable (TSS) (Total) Residues‐ Volatile (Total) Salinity (Total) Secchi‐horizontal (Total) Sodium (Dissolved) Specific Conductance (Total) Temperature (Total) Turbidity (Total)

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Water Quality Quantifiable Objective - Clarity

SWIM Plan Objective > 40

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Water Quality Quantifiable Objective - Clarity

SWIM Plan Objective > 20

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TMDL <0.23mg/L

Water Quality Quantifiable Objective - Nitrate Homosassa Main

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Trotter Main Spring

TMDL < 0.23 mg/L

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Pumphouse Spring

TMDL < 0.23 mg/L

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Minimum Flow for the River

> 97% of Natural Flow

Maintaining 99% of

Natural Flow

Water Quantity Quantifiable Objective WATER QUANTITY

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Coverage of Desirable SAV

> 65% Coverage

Coverage of Invasive SAV

<10% Coverage

NATURAL SYSTEMS Natural Systems Quantifiable Objectives

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10 20 30 40 50 60 70 80 90 100 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

SAV Coverage (%)

Homosassa River

Total SAV Desirable SAV Invasive SAV

SAV % Cover 2003 – 2018

No Data No Data No Data No Data No Data

Coverage of desirable SAV >65% Coverage of invasive SAV <10%

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No net loss of shoreline

in natural condition along the river

NATURAL SYSTEMS Natural Systems Quantifiable Objectives

BUT significant shifts are
ccurring, especially in

the lower river

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