BROWARD COUNTY, FLORIDA HISTORICAL WATER QUALITY ATLAS: 1972-1997 Confluence Intracoastal Waterway and New River, Ft. Lauderdale, eastern Broward County. Water Conservation Areas, western Broward County. Port Everglades Inlet and Atlantic Ocean. North New River Canal at Sewell Lock and Interstate 595, east-central Broward County. DEPARTMENT OF PLANNING AND ENVIRONMENTAL PROTECTION BROWARD COUNTY DEPARTMENT OF PLANNING AND ENVIRONMENTAL PROTECTION TECHNICAL REPORT SERIES TR: 01-03 BROWARD COUNTY, FLORIDA HISTORICAL WATER QUALITY ATLAS: 1972-1997 FEBRUARY 28, 2001 WATER RESOURCES DIVISION (954) 519-1270 AND ENVIRONMENTAL MONITORING DIVISION (954) 519-1240 TABLE OF CONTENTS List of Figures ..........................................................viii List of Tables .......................................................... xxi Executive Summary ....................................................xxviii I. Introduction ...........................................................1 A. Objectives ......................................................1 B. Background Information ...........................................3 1. Watershed ................................................3 2. Climate ..................................................3 3. Municipalities ..............................................3 4. Drainage Districts ...........................................6 5. Other Characteristics ........................................6 C. Literature Cited .................................................10 II. Methodology .........................................................11 A. Field and Laboratory .............................................11 B. Database Formation .............................................11 C. Data Analysis ..................................................13 D. Literature Cited .................................................13 III. Freshwater Canals ....................................................14 A. Introduction ....................................................14 B. Objectives and Scope ............................................14 C. Freshwater Regions ..............................................17 D. General Hydrological Characteristics .................................19 E. Hillsboro Canal .................................................20 1. Basin and Canal Structure ...................................20 2. Municipalities and Land Uses .................................20 3. Wastewater Treatment Plants (WWTPs) Discharge History ..........22 4. Other Influences on Water Quality .............................23 a. Soils ..............................................23 b. Roadways .........................................23 c. Septic Tanks .......................................23 5. Sampling Locations ........................................23 6. Results ..................................................24 a. Physical Characteristics ...............................24 b. Total Organic Carbon and Turbidity ......................25 c. Dissolved Oxygen and Biochemical Oxygen Demand .........26 d. Total Phosphorus ....................................31 e. Nitrogen ...........................................35 f. Bacteriological Parameters .............................41 i 7. Basin Summary ...........................................44 a. Influence of WWTP Discharges .........................44 b. Basinwide Water Quality Characteristics (Post-WWTPs) ......48 c. Seasonal Differences .................................48 d. Future Monitoring Questions ...........................49 F. C-14 Canal ....................................................50 1. Basin and Canal Structure ...................................50 2. Municipalities and Land Uses .................................50 3. Wastewater Treatment Plants Discharge History ...................52 4. Other Influences on Water Quality .............................53 a. Soils ..............................................53 b. Roadways .........................................53 c. Septic Tanks .......................................53 5. Sampling Locations and Period ................................53 6. Results ..................................................54 a. Physical Characteristics ...............................54 b. Total Organic Carbon and Turbidity ......................55 c. Dissolved Oxygen and Biochemical Oxygen Demand .........56 d. Total Phosphorus ....................................58 e. Nitrogen ...........................................63 f. Bacteriological Parameters .............................72 7. Basin Summary ...........................................74 a. Influence of WWTP Discharges .........................74 b. Basinwide Water Quality Characteristics (Post-WWTPs) ......78 c. Seasonal Patterns ....................................78 d. Future Monitoring Questions ...........................79 G. C-13 Canal ....................................................80 1. Basin and Canal Structure ...................................80 2. Municipalities and Land Uses .................................80 3. Wastewater Treatment Plants Discharge History ...................82 4. Other Influences on Water Quality .............................82 a. Soils ..............................................82 b. Roadways .........................................82 c. Septic Tanks .......................................82 5. Sampling Locations and Period ................................83 6. Results ..................................................84 a. Physical Characteristics ...............................84 b. Total Organic Carbon and Turbidity ......................85 c. Dissolved Oxygen and Biochemical Oxygen Demand .........85 d. Total Phosphorus ....................................91 e. Total Nitrogen ......................................95 ii f. Bacteriological Parameters .............................97 7. Basin Summary ..........................................107 a. Influence of WWTP Discharges ........................107 b. Basinwide Water Quality Characteristics ..................107 c. Seasonal Patterns ...................................108 d. Future Monitoring Questions ..........................108 H. C-12 Canal ...................................................109 1. Basin and Canal Structure ..................................109 2. Municipalities and Land Uses ................................109 3. Wastewater Treatment Plants Discharge History ..................109 4. Other Influences on Water Quality ............................111 a. Soils .............................................111 b. Roadways ........................................111 c. Septic Tanks ......................................111 5. Sampling Locations .......................................111 6. Results .................................................112 a. Physical Characteristics ..............................112 b. Total Organic Carbon and Turbidity .....................113 c. Dissolved Oxygen and Biochemical Oxygen Demand ........113 d. Total Phosphorus ...................................118 e. Total Nitrogen .....................................118 f. Bacteriological Parameters ............................126 7. Basin Summary ..........................................130 a. Influence of WWTP Discharges ........................130 b. Basinwide Water Quality Characteristics (Post-WWTPs) .....130 c. Seasonal Patterns ...................................131 d. Future Monitoring Questions ..........................131 I. North New River Canal ..........................................132 1. Basin and Canal Structure ..................................132 2. Municipalities and Land Use .................................134 3. Wastewater Treatment Plants Discharge History ..................134 4. Other Influences on Water Quality ............................134 a. Soils .............................................134 b. Roadways ........................................135 c. Septic Tanks ......................................135 5. Sampling Locations and Period ...............................135 6. Results .................................................136 a. Physical Characteristics ..............................136 b. Total Organic Carbon and Turbidity .....................137 c. Dissolved Oxygen and Biochemical Oxygen Demand ........138 d. Total Phosphorus ...................................143 iii e. Total Nitrogen .....................................148 f. Bacteriological Parameters ............................150 7. Basin Summary ..........................................154 a. Influence of WWTP Discharges ........................154 b. Basinwide Water Quality Characteristics (Post-WWTPs) .....154 c. Seasonal Differences ................................159 d. Future Monitoring Questions ..........................159 J. C-11 Canal ...................................................160 1. Basin and Canal Structure ..................................160 2. Municipalities and Land Use .................................160 3. Wastewater Treatment Plants Discharge History ..................162 4. Other Influences on Water Quality ............................162 a. Soils .............................................162 b. Roadways ........................................162 c. Septic Tanks ......................................162 5. Sampling Locations and Period ...............................163 6. Results .................................................164 a. Physical Characteristics ..............................164 b. Total