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?