Indian River Lagoon Water Resource Summary Kathy LaMartina - - PowerPoint PPT Presentation

• St. Lucie Estuary/ Southern

Indian River Lagoon Water Resource Summary

Kathy LaMartina Regional Representative, Martin/St. Lucie Counties South Florida Water Management District

Water Resource Modifications

Historic Flow Current Flow

Historical Problems Leading to Construction of C&SF Project

• Hurricanes in 1926 and 1928

resulted in failure of the levee around Lake Okeechobee

• Hurricane in 1947 resulted in

wide-spread flooding throughout South Florida

• State of Florida requested

Federal assistance in 1947

• Congress authorized the C&SF

Project in 1948

Major Central and South Florida Project Components

• River Channelization
• Herbert Hoover Dike
• Water Conservation Areas
• Protective Levees
• Everglades Agricultural Area
• Lower East Coast
• Drainage Network
• Salinity Structures

Martin County 2000

S-48 in Martin County

C-25 Canal in St. Lucie County

S-80 in Martin County

Florida’s Water Management Districts

• Core Mission
• Flood Protection
• Water Quality
• Water Supply
• Natural Systems

South Florida

• 18,000 square miles
• 2,100 miles of canals
• 2,100 miles of levees
• More than 600 water

control structures and 625 project culverts

• 70 pump stations
• 8.1 million residents
• More than 3 million

acres of agriculture

• Vast protected

natural areas

Lake Okeechobee

• 5,000 square mile

watershed drains into the 730 square mile Lake

• Water levels driven largely

by climatic conditions

• Serves multiple purposes:
• Water Supply Storage
• Flood Protection
• Unique Ecosystem
• Recreation

Lake Okeechobee

Inflow capacity far exceeds outflow capacity

Lake Okeechobee Major Structures

Managed by the USACE (red ) and the SFWMD (blue )

S-79:

Franklin Lock & Dam

S-78:

Ortona Lock & Dam

S-77:

Moore Haven Lock & Dam

S-71 S-72 S-65E S-80:

• St. Lucie

Lock & Dam

S-308:

Port Mayaca Lock & Dam

S-354 S-351 S-352 C-10A

Lake Release at S-77 Lake Release at S-308 C-43 Basin Runoff C-44 Basin Runoff

Typical Lake Okeechobee & Estuary Flows

During Wet Periods

S-79 Discharge to Caloosahatchee Estuary Lake Inflows S-80 Discharge to

• St. Lucie Estuary

EAA Runoff Lake Release through EAA to WCAs (via STAs) &/or to tide

SFWMD Wet Season Rainfall

May 18 2013 – October 15, 2013

DISTRICT-WIDE: 39.05” (117% of Avg,

• r +5.58”)
• Wet Season Started ~May 18th
• All basins more than 100 percent of average
• April-July was very wet
• April-August period was second wettest in 81-yr record

(1947 was wettest by 0.37”)

SFWMD Dry Season Rainfall

November 2015– January 2016

DISTRICT-WIDE: 16.22” (300% of Avg,

• r +10.81”)
• Dry season lasts through May averaging 18” or

less

• Jan. record 9.18” - 7.25” above the historical

average or 476 percent of average

• Nov. – Jan. period was wettest since record

keeping began in 1932

2013

Hurricane Season Jun-Nov

2013 Discharges to the St. Lucie Estuary

22

Does not include runoff from tidal basin or groundwater

Data through Sep 30th

WCA water levels STA treatment capability Protected species

EAA Flood Control WCA levee integrity Water levels in NE Shark River Slough S-12 discharge capacity

Constraints Limiting Discharges South

Water Discharges to St. Lucie Estuary 1979-2015

200000 400000 600000 800000 1000000 1200000 1400000 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015

Annual Total Discharges (Thousand Acre Feet)

S-80 S-97 S-49

Annual Average Phosphorus Concentration

0.000 0.050 0.100 0.150 0.200 0.250 0.300 0.350 0.400 0.450 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

Total Phosphorus (Milligrams per Liter)

C-44 SC-23 C-24

28

C-23 Canal 2000 - 2005 Flow & T-PO4 Flow Weighted Mean

10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 2000 Jan Apr Jul Oct 2001 Jan Apr Jul Oct 2002 Jan Apr Jul Oct 2003 Jan Apr Jul Oct 2004 Jan Apr Jul Oct 2005 Jan Apr Jul Oct Flow (ac/ft) 0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 T-PO4 (mg/l) Flow T-PO4

Salinity Conditions

June 30, 2013 July 30, 2013

Areas Not Modeled Areas Not Modeled

Salinity Tolerances of Oysters

• Juveniles:

Mortality after 7 days at < 5

• Adults:

Mortality after 28 days at < 5

Peacock Ranch in St. Lucie County

Peacock Ranch in St. Lucie County

Peacock Ranch in St. Lucie County

Elkcam Waterway in St. Lucie County

Martin Downs Country Club in Martin County

Port St. Lucie

Solutions

• Total Maximum Daily Load – Establishes Water Quality

Standards for Impaired Water Bodies

• Addresses agricultural and urban runoff
• Basin Management Action Plan (BMAP)
• Regional and Local Restoration Efforts
• Alternative Storage
• Outreach Efforts
• Zero-phosphorus fertilizers; urban best management practices

Salerno Creek in Martin County

Platts Creek in St. Lucie County

• July 1, 1999, Secretary of the Army

and State of Florida Presented plan to Congress.

• Approved by Congress as the

Framework for Everglades Restoration in the Water Resources Development Act of 2000 (WRDA 2000)

$

Project Cost Sharing

50% Federal

$

50% State

Comprehensive Everglades Restoration Plan

• Restore and

improve quality, quantity, timing and flow of water.

• Provide

sustainable water supply to meet environmental, agricultural and urban needs.

Comprehensive Everglades Restoration Plan

Loxahatchee River Restoration C-111 Spreader Canal

C-44 Stormwater Treatment Area

CERP – The Goal

• Includes 68 components to be

implemented over 35 years.

• Features include:
• Aquifer Storage & Recovery
• Surface Water Storage

Reservoirs

• Stormwater Treatments

Areas

• Seepage Management
• Removing Barriers to

Sheetflow

• Operational Changes
• Reuse Wastewater

Comprehensive Everglades Restoration Plan

Before After Restored

Success

Restoration Works – Kissimmee River

Indian River Lagoon South

• Authorized

Components:

• C-44 Reservoir & STA
• 3,400 acre reservoir –

50,600 acre feet

• 6,300 acre STA (6 cells)
• C-23/24 Reservoirs & STA
• N/S Reservoirs -

~100,000 acre feet

• 2,500 acre STA – 4 cells
• C-25 Reservoir/STA
• 741 acre Reservoir –

5,900 acre feet

• 163 acre STA
• ~ 90,000 acres Natural

Water Storage & Treatment Area (NWSTA)

• Improve habitat quality in estuarine

ecosystems

• Improve functional quality of wetland

ecosystems

• Improve water quality
• Maintain existing level of flood control
• Maintain or improve water supply for urban

and agricultural use.

• Maintain healthy ecosystem that supports

recreational and commercial interests

Indian River Lagoon South (IRLS)

48

• Status
• Corps constructing

reservoir

• State funding expediting

construction of C-44 STA

C-44 STA C-44 Reservoir

C-44 Reservoir & STA

Natural Lands Component

• Natural Lands Status
• Wetland restoration under way
• Allapattah Flats
• Turnpike Dairy
• Williamson Ranch
• ~13,000 acres under landowner

agreements with NRCS – WRP

• Key restoration activities
• Ditch blocks
• Water control structures
• Low-level berms

Allapattah Flats

Dispersed Water Management

• 87,000 acre

feet of storage achieved

• 99,000 acre

feet of additional storage approved December 2014

Central Everglades Planning Project

• Increase storage, treatment and

conveyance of water south of Lake Okeechobee

• Sends 200,000 ac-feet of water south

from the Lake

• Removes and/or plugs canals and

levees within the central Everglades

• Improves hydroperiod and flow

through Everglades National Park while protecting urban and agricultural areas to the east from flooding

20-Year Commitment to Everglades Restoration

• Dedicated source of funding
• $5 billion in state funding over he next 20 years
• $4 billion in matching federal funds anticipated
• Implementation of the Governor’s plan will deliver critical

benefits to the Everglades ecosystem:

• Capture and store 1 million acre-feet (330 billion gallons) of fresh

water, which will significantly decrease the frequency and intensity of harmful freshwater discharges to the norther estuaries.

• Reduce phosphorus loads to Lake Okeechobee, Caloosahatchee

Estuary, St. Lucie Estuary and the Everglades by 252 metric tons per year.

QUESTIONS?