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Big Cypress Basin Board Big Cypress Basin Board MeetingMeetingBig Cypress Basin Board Big Cypress Basin Board MeetingMeetingBCB Hydrologic Conditions 1/20/15BCB Hydrologic Conditions 1/20/15
Joss Nageon de Lestang, P.E.Joss Nageon de Lestang, P.E.Principal Engineer, BCBPrincipal Engineer, BCB Item No. 12 A
BCB Hydrologic Conditions ~ Rainfall BCB Hydrologic Conditions ~ Rainfall
DECEMBER DATADECEMBER DATA
RAINFALL AVERAGE = RAINFALL AVERAGE = 0.35“0.35“
HISTORIC = 1.64“ (- 79%)HISTORIC = 1.64“ (- 79%)
DECEMBER 2014DECEMBER 2014DECEMBER 2014DECEMBER 2014
BCB Hydrologic Conditions ~ Rainfall BCB Hydrologic Conditions ~ Rainfall HISTORIC AVERAGE RAINFALL HISTORIC AVERAGE RAINFALL HISTORIC AVERAGE RAINFALL HISTORIC AVERAGE RAINFALL
20 YEAR DATA RECORD20 YEAR DATA RECORD
1995 YR: 78.0“ 1995 YR: 78.0“
2007 YR: 38.9“2007 YR: 38.9“
2014 2014
53.9”53.9”
BCB Hydrologic Conditions ~ Rainfall BCB Hydrologic Conditions ~ Rainfall
JUST WHAT IS AVERAGE ….?JUST WHAT IS AVERAGE ….?HIGHEST RAINFALL = 73.7 INCHESHIGHEST RAINFALL = 73.7 INCHES
LOWEST RAINFALL = 47.0 INCHESLOWEST RAINFALL = 47.0 INCHES
VARIATION OF 27 INCHES VARIATION OF 27 INCHES
HIGH 57% > LOW HIGH 57% > LOW
MARCO MARCO
(47.0”)(47.0”)
MARCO MARCO
(47.0”)(47.0”)
PICAYUNEPICAYUNE
(73.7”)(73.7”)
PICAYUNEPICAYUNE
(73.7”)(73.7”)
2014 RAINFALL MAXIMA / MINIMA 2014 RAINFALL MAXIMA / MINIMA 2014 RAINFALL MAXIMA / MINIMA 2014 RAINFALL MAXIMA / MINIMA
Canal System Levels - December 2014 Canal System Levels - December 2014
GG4GG4GG4GG4
GG1GG1GG1GG1
GOLDEN GATE WATERSHEDGOLDEN GATE WATERSHEDGOLDEN GATE WATERSHEDGOLDEN GATE WATERSHED
• CANAL LEVELS TREND LOWER CANAL LEVELS TREND LOWER
• CONSISTENT WITH DRY SEASON CONSISTENT WITH DRY SEASON
• STILL ABOVE HISTORIC AVERAGESTILL ABOVE HISTORIC AVERAGE
• CANAL LEVELS TREND LOWER CANAL LEVELS TREND LOWER
• CONSISTENT WITH DRY SEASON CONSISTENT WITH DRY SEASON
• STILL ABOVE HISTORIC AVERAGESTILL ABOVE HISTORIC AVERAGE
Canal System Levels - December 2014 Canal System Levels - December 2014
FU5FU5FU5FU5
FU1FU1FU1FU1
FAKA UNION WATERSHEDFAKA UNION WATERSHEDFAKA UNION WATERSHEDFAKA UNION WATERSHED
• CANAL LEVELS TREND LOWER CANAL LEVELS TREND LOWER
• CONSISTENT WITH DRY SEASON CONSISTENT WITH DRY SEASON
• MATCHES HISTORIC AVERAGEMATCHES HISTORIC AVERAGE
• CANAL LEVELS TREND LOWER CANAL LEVELS TREND LOWER
• CONSISTENT WITH DRY SEASON CONSISTENT WITH DRY SEASON
• MATCHES HISTORIC AVERAGEMATCHES HISTORIC AVERAGE
Canal System Levels - December 2014 Canal System Levels - December 2014
COCO 1COCO 1COCO 1COCO 1
COCO 3COCO 3COCO 3COCO 3
COCOHATCHEE WATERSHEDCOCOHATCHEE WATERSHEDCOCOHATCHEE WATERSHEDCOCOHATCHEE WATERSHED
• CANAL LEVELS TREND LOWER CANAL LEVELS TREND LOWER
• CONSISTENT WITH DRY SEASON CONSISTENT WITH DRY SEASON
• EXCEEDS HISTORIC AVERAGEEXCEEDS HISTORIC AVERAGE
• CANAL LEVELS TREND LOWER CANAL LEVELS TREND LOWER
• CONSISTENT WITH DRY SEASON CONSISTENT WITH DRY SEASON
• EXCEEDS HISTORIC AVERAGEEXCEEDS HISTORIC AVERAGE
Canal System Levels - December 2014 Canal System Levels - December 2014
HC1HC1HC1HC1
HC2HC2HC2HC2
HENDERSON CREEK WATERSHEDHENDERSON CREEK WATERSHEDHENDERSON CREEK WATERSHEDHENDERSON CREEK WATERSHED
• CANAL LEVELS TREND LOWER CANAL LEVELS TREND LOWER
• CONSISTENT WITH DRY SEASON CONSISTENT WITH DRY SEASON
• MATCHES HISTORIC AVERAGEMATCHES HISTORIC AVERAGE
• CANAL LEVELS TREND LOWER CANAL LEVELS TREND LOWER
• CONSISTENT WITH DRY SEASON CONSISTENT WITH DRY SEASON
• MATCHES HISTORIC AVERAGEMATCHES HISTORIC AVERAGE
BCB System Report ~ December 2014 BCB System Report ~ December 2014
SUMMARY SUMMARY
2014 Year was typical based on historic trends 2014 Year was typical based on historic trends
December rainfall lowest: 0.4 inchesDecember rainfall lowest: 0.4 inches
September rainfall highest: 10.6 inchesSeptember rainfall highest: 10.6 inches
Canal water levels – kept pace or exceeded historic Canal water levels – kept pace or exceeded historic trends by the end of 2014trends by the end of 2014
SUMMARY SUMMARY
2014 Year was typical based on historic trends 2014 Year was typical based on historic trends
December rainfall lowest: 0.4 inchesDecember rainfall lowest: 0.4 inches
September rainfall highest: 10.6 inchesSeptember rainfall highest: 10.6 inches
Canal water levels – kept pace or exceeded historic Canal water levels – kept pace or exceeded historic trends by the end of 2014trends by the end of 2014
BCB System Report ~ December 2014 BCB System Report ~ December 2014
• QUESTIONS?