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Published byFrederick Barnett Modified over 9 years ago
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Dragline in operation along FL 62 nr Ft Green Springs Design of Water Quality Monitoring
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How do you find trends in water quality, without historic data?
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Assessment of Effects of Differing Watershed Land Uses on Water Quality based on Comparisons of Six Stream/River Systems: 1.St. Mary’s River- Control 2.Myakka River-Large Agricultural Impact 3.Horse Creek – Limited Impacts of Agriculture & Mining 4.Payne Creek- Large Phosphate Mining Impact 5.Peace River at Arcadia- Combined Agricultural & Mining Impacts 6.S. Prong Alafia River- 60-70% Mined Basin
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St Mary’s River- control No Trends in Water Quality over Time
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Myakka River- Agricultural Pollution: Increasing sp. cond. & [K]
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Specific Conductance- Myakka River
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Potassium- Myakka River
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95th 75th 50th 25th 5th
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Six Site Comparison of Mean Data for Seven Water Quality Parameters- Mined Watersheds Elevated in: 1. Specific Conductance 6. [F] 2. [Na] 7. [TP] 3. [Ca] 4. [Mg] 5. [SO4]
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Specific Conductance
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Sodium
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Calcium
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Magnesium
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Sulfate
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Fluoride
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Total Phosphorus
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Will such changes in water quality affect the fauna?
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Bishop Harbor Algal Bloom in Response to Piney Pt. Effluent
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Effluent Treatment & Discharge
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Water Quality in Reclaimed Wetland Streams 1.Hall’s Branch 2.Jamerson Jr. 3.Lizard Branch 4.Dogleg 5.Pickle 6.Tadpole
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The Normal Progression by Levels of Approximation in Field Toxicity Testing: 1.TIER 1- Is there toxicity by standard lab. bioassays? 2.TIER 2- Is there toxicity for native species in situ? Are species “missing” that should be present? 3.TIER 3- What is the toxicity due to? 4.TIER 4- What is the source of the toxin(s)?
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Chronic Toxicity in Reclaimed Wetlands (Charlotte Cty. Data: 10/25/03; 3/2/04) Crustacean FETAX Site pH Sp. Cond. Repr. Malfor. Growth Jam. 6.9 106,148 + + Lizard 7.6 290,296 + + Pickle 6.8 395,486 + + Halls 6.8 340,483 + Dog 7.5 309,328 + Tadpole 7.2 220,403 +
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WATER CHEMISTRY OF RECLAIMED STREAMS USED FOR BIOASSAYS BY CHARLOTTE COUNTY, Oct. 2003; March 2004 Parameter Dog Hall’s Jamerson Lizard Pickle Tadpol e pH 7.8 6.7 6.5 8.1 6.7 6.9 7.1 6.9 7.1 7.1 6.9 7.5 Sp Cond, uS/cm 328 483 148 290 486 403 309 340 106 296 395 220 Oxygen, mg/l 6.8 1.5 7.0 12.6 0.8 2.8 8.6 2.1 8.0 7.1 1.2 2.1 Iron, ug/l 325 117,000 583 547 4230 11,300 212 4025 195 352 786 1100 Manganese,ug/l 41 1880 136 71 127 166 22 392 21 30 72 20 Aluminum, ug/l 160 226 391 445 107 669 132 35 101 45 <5 95
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Acute (A) and Chronic (C) Toxicity in Horse Creek Tributaries (IMC- Marinco data;1/21/04) Site pH Sp. Cond. Ceriodaph. Shiner Fathead 8W 4.4 74 A,C A C 1W 5.1 122 C C 2E 5.6 88 C C 6W 5.9 97 C C Piez. 7.8 266
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HCSP Needs Changes Water quality - re-set trigger levels; add sampling sites above and below points of discharge and increase number of samples Bio-monitoring - use full 3 tier system of bioassays on field observations, lab tests and in-situ enclosures
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HCSP Needs Changes The Bottom Line - Design rigorous plan for bio-monitoring prior to agreement - Convene outside panel free from conflicts of interest to design plan and oversee implementation
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A Physical Analogy for the Cumulative Adverse Ecological Impacts of Mining
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