Lake Tsala Apopka Water Quality Data Report

Citrus/Hernando Waterways Restoration Council

Citrus County Task ForceSeptember 12, 2011

Lakes with the most consistent sampling frequency

Bellamy CooterCroft DoddFloral City Ft. CooperHampton HendersonHernando Little (Consuella)Little Henderson SpiveyTodd

Lakes with the least consistent sampling frequency

BradleyCatoDavisMagnoliaPoint LonesomeTussockVan Ness

Total Nitrogen, 2011 Average

• <1 mg/L – Good conditions, low risk of water quality degradation

• 1-1.5 mg/L – Fair conditions, within seasonal averages

• >1.5 mg/L - System may be prone to sudden reductions in water quality, algae blooms

Total Nitrogen, 2011 Average• Bellamy - 1.10 • Bradley - 1.34 • Cato - 0.78 • Cooter - 0.46 • Croft - 1.11 • Davis - 1.01 • Dodd - 1.14 • Floral City - 1.07• Fort Cooper - 0.98 • Hampton - 0.99 • Henderson - 0.97 • Hernando - 1.02 • Little (Consuella) - 0.83 • Little Henderson - 0.96 • Magnolia – No Data• Point Lonesome - 1.50 • Spivey - 0.97 • Todd - 1.12 • Tussock - 1.09 • Van Ness - 1.14

Total Nitrogen, 2010 Average• Bellamy - 1.20 • Bradley - 1.72 • Cato - 1.61 • Cooter - 0.42 • Croft - 1.34 • Davis - 1.55 • Dodd - 1.27 • Floral City - 1.41 • Fort Cooper - 1.11 • Hampton - 1.39 • Henderson - 1.36 • Hernando - 1.30 • Little (Consuella) - 0.80 • Little Henderson - 1.30 • Magnolia - 0.63 • Point Lonesome - 1.43 • Spivey - 1.49 • Todd - 1.26 • Tussock - 1.33 • Van Ness - 1.37

Total Phosphorus, 2011 Average

• <0.05 mg/L – Good conditions

• 0.05-0.1 mg/L – Fair conditions, within seasonal averages

• >0.1 ug/L - System may see a rapid increase in algal growth

Total Phosphorus, 2011 Average• Bellamy - 0.019 • Bradley - 0.024 • Cato - 0.058 • Cooter - 0.025 • Croft - 0.015 • Davis - 0.022 • Dodd - 0.017 • Floral City - 0.033 • Fort Cooper - 0.011 • Hampton - 0.032 • Henderson - 0.019 • Hernando - 0.017 • Little (Consuella) - 0.027 • Little Henderson - 0.018 • Magnolia – No data • Point Lonesome - 0.028 • Spivey - 0.020 • Todd - 0.016 • Tussock - 0.045 • Van Ness - 0.015

Total Phosphorus, 2010 Average• Bellamy - 0.019 • Bradley - 0.037 • Cato - 0.097 • Cooter - 0.027 • Croft - 0.014 • Davis - 0.035 • Dodd - 0.016 • Floral City - 0.056 • Fort Cooper - 0.011 • Hampton - 0.054 • Henderson - 0.027 • Hernando - 0.016 • Little (Consuella) - 0.019 • Little Henderson - 0.022 • Magnolia - 0.018 • Point Lonesome - 0.035 • Spivey - 0.034 • Todd - 0.016 • Tussock - 0.059 • Van Ness - 0.016

Total Chlorophyll, 2011 Average

• <15 ug/L – Good conditions, low incidence of algae

• 15-30 ug/L – Fair conditions, within seasonal averages

• >30 ug/L - System may become low in oxygen, low in light penetration

Total Chlorophyll, 2011 Average• Bellamy - 5.42 • Bradley - 12.30 • Cato - 14.99 • Cooter - 4.38 • Croft - 5.17 • Davis - 3.84 • Dodd - 6.46 • Floral City - 12.18 • Fort Cooper - 1.58 • Hampton - 15.71 • Henderson - 5.43 • Hernando - 6.05 • Little (Consuella) - 6.88 • Little Henderson - 5.80 • Magnolia – No Data • Point Lonesome - 8.10 • Spivey - 5.93 • Todd - 5.67 • Tussock - 19.84 • Van Ness - 3.27

Total Chlorophyll, 2010 Average• Bellamy - 6.66 • Bradley - 26.71 • Cato - 8.89 • Cooter - 3.68 • Croft - 5.97 • Davis - 21.39 • Dodd - 9.06 • Floral City - 12.72 • Fort Cooper - 1.59 • Hampton - 19.20 • Henderson - 17.23 • Hernando - 9.07 • Little (Consuella) - 6.07 • Little Henderson - 15.23 • Magnolia - 2.57 • Point Lonesome - 15.63 • Spivey - 33.95 • Todd - 7.74 • Tussock - 26.58 • Van Ness - 4.75

Trophic State Index, 2011 Average

• 0 – 50 – Good conditions, low risk of algae blooms

• 50-70 – Fair conditions, water quality may be degraded

• 70+ - System is experiencing trophic collapse, fish kills and algae blooms may occur

Trophic State Index, 2011 Average• Bellamy - 42.5 • Bradley - 46.7 • Cato - 51.5 • Cooter - 34.0 • Croft - 39.2 • Davis - 39.5 • Dodd - 42.9 • Floral City - 50.7 • Fort Cooper - 26.2 • Hampton - 54.7 • Henderson - 42.6 • Hernando - 42.5 • Little (Consuella) - 46.5 • Little Henderson - 42.0 • Magnolia - No Data• Point Lonesome - 46.4 • Spivey - 43.4 • Todd - 40.1 • Tussock - 57.0 • Van Ness - 35.6

Trophic State Index, 2010 Average• Bellamy - 43.1 • Bradley - 54.6 • Cato - 58.3 • Cooter - 37.3• Croft - 39.0• Davis - 53.0 • Dodd - 42.9 • Floral City - 53.2 • Fort Cooper - 26.8• Hampton - 54.1 • Henderson - 50.4 • Hernando - 42.8 • Little (Consuella) - 42.9 • Little Henderson - 49.9 • Magnolia - 37.4 • Point Lonesome - 51.9 • Spivey - 52.4 • Todd - 42.5 • Tussock - 58.1 • Van Ness - 38.8

Conclusions

• Data for all lakes was well within state standards (where applicable)

• Water Quality in 2011 so far is much better than in 2010 in most locations

• Historically, water quality increases as you move south to north. But with nutrient data it appears that the Nitrogen levels in the Inverness has been better than the Hernando Pool.