Quantifiable Objectives Update Quantifiable Objectives Update - PowerPoint PPT Presentation

Quantifiable Objectives Update Quantifiable Objectives Update Homosassa River Homosassa River Chris J. Anastasiou, Ph.D. Chief Scientist Natural Systems and Restoration Bureau Southwest Florida Water Management District

Quantifiable Objectives

Water Quality Quantifiable Objectives • Water Clarity – River Average >20 feet – Near Headsprings >40 feet • Nitrogen Concentrations WATER QUALITY – Springs TMDL <0.23mg/L Nitrate

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)

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)

Water Quality Quantifiable Objective - Clarity SWIM Plan Objective > 40

Water Quality Quantifiable Objective - Clarity SWIM Plan Objective > 20

Water Quality Quantifiable Objective - Nitrate Homosassa Main TMDL <0.23mg/L

Trotter Main Spring TMDL < 0.23 mg/L

Pumphouse Spring TMDL < 0.23 mg/L

Water Quantity Quantifiable Objective • Minimum Flow for the River > 97% of Natural Flow • Maintaining 99% of Natural Flow WATER QUANTITY

Natural Systems Quantifiable Objectives • Coverage of Desirable SAV > 65% Coverage NATURAL SYSTEMS • Coverage of Invasive SAV <10% Coverage

SAV % Cover 2003 – 2018 100 Homosassa River 90 Total SAV Desirable SAV 80 Invasive SAV 70 Coverage of desirable SAV >65% 60 SAV Coverage (%) 50 40 30 Coverage of invasive SAV <10% 20 10 No Data No Data No Data No Data No Data 0 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Natural Systems Quantifiable Objectives • No net loss of shoreline in natural condition along the river NATURAL SYSTEMS • BUT significant shifts are occurring, especially in the lower river

Quantifiable Objectives