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Long-term prognosis for Florida manatees improves

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2012 analysis shows reduced estimates of long-term risk, but mortality events since then raise questions.

The risk of extinction for the endangered Florida manatee appears to be lower, according to a new U.S. Geological Survey led study.

Based on the data available in 2012, the long-term probability of the species surviving has increased compared to a 2007 analysis, as a result of higher aerial survey estimates of population size, improved methods of tracking survival rates, and better estimates of the availability of warm-water refuges. USGS scientists, working with colleagues from several other agencies and universities, used the manatee Core Biological Model to analyze the long-term viability of the manatee population in Florida, and to evaluate the threats it faces. A similar analysis completed in 2007 was used by the U.S. Fish and Wildlife Service as part of its 5-year Review of the status of manatees. “Our analysis using data from 2007 estimated that there was nearly a nine percent chance of Florida manatee numbers falling below 250 adults over the next 100 years on either the Atlantic or Gulf Coast,” said Michael Runge, a USGS research ecologist and lead author of the study. “The current analysis, using data available in 2012, has the estimate dropping to a fraction of one percent, but we need to be cautious in our conclusion, because the analysis did not include several mortality events that have occurred since then.

The mortality events Runge was referencing were cold winters, loss of seagrass in prime habitat, and a red tide event, all of which affected the population.

“Although the estimated status in 2012 was better than in 2007, questions still remain about the population effects of the more recent cold-related mortality events in the winters of 2009-10 and 2010-11,” Runge said. “The 2012 analysis also does not account for the extensive loss of seagrass habitat in Indian River Lagoon in 2011 and 2012 nor the severe red tide event in the Southwest region of Florida in 2013.”

The potential effects of these events will be analyzed in the next update of the Core Biological Model, which is underway in collaboration with Florida Fish and Wildlife Research Institute and Mote Marine Laboratory, and is expected to be complete within the next year.

The major threats to long-term survival of Florida manatees remain boat-related deaths and loss of warm-water winter habitat. In the Southwest region, an increasing frequency of red-tide deaths also warrants concern.

USGS news release continues »


Water conservation called inadequate at CFWI stakeholder meeting

By Tom Palmer

DAVENPORT – Conservation leaders from the region pressed water managers Monday to do more to implement water conservation measures before they set off to build multimillion-dollar water supply projects.

The forum at Champions Gate Golf Club was the latest in a series of meetings to get feedback on the implementation phase of the Central Florida Water Initiative, a long-term water supply plan for Polk, Osceola, Orange, Seminole and part of Lake counties.

The effort is an outgrowth of the realization that the region was reaching a point where tapping the aquifer for future water supplies cannot occur without causing environmental problems. The study and its implementation, which it was clear Monday is still short on specifics, is intended to confront that problem.

Monday's meeting is one of three stakeholder meetings that will precede a June 1 public meeting in Winter Haven and formal action this fall by the Southwest Florida, South Florida and St. Johns River water management district boards. The other meetings involve farmers and local utility officials.

Continued in The Ledger »


Public invited to workshops on regional water supply plan

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The Southwest Florida Water Management District (District) will hold three public workshops about the draft 2015 Regional Water Supply Plan (RWSP) and one public workshop for agricultural stakeholders. The plan presents the projected water demands across the District and all water use sectors for a 20-year planning period as well as identifies water supply sources and potential water supply project options. Most workshops will be accessible via interactive webcasts accessed remotely via conference call and online through Cisco WebEx meetings.

Public Information Workshop – Hernando County
May 28 from 4:30–7:30 p.m.
District Headquarters, 2379 Broad St. in Brooksville.
To join the workshop online at 5:30 p.m. go to: SWFWMD.webex.com and enter meeting number: 735 758 973. For audio, dial toll free 1-888-670-3525, and enter the participant code 9502752119#.

Agriculture Public Workshop – Hillsborough County
June 18, from 5:00–7:00 p.m.
Tampa Service Office, 7601 US Hwy. 301 in Tampa.
To join the workshop online at 5:00 p.m. go to: SWFWMD.webex.com and enter meeting number: 736 652 717. For audio, dial toll free 1-888-670-3525, and enter the participant code 9502752119#.

Public Information Workshop – Hillsborough County
June 30, from 4:30–7:30 p.m.
Tampa Service Office, 7601 US Hwy. 301 in Tampa.
To join the workshop online at 5:30 p.m. go to: SWFWMD.webex.com and enter meeting number: 734 632 656. For audio, dial toll free 1-888-670-3525, and enter the participant code 9502752119#.

Public Information Workshop – Citrus County
July 23, from 4:30–7:30 p.m.
Cornerstone Baptist Church, 1100 W. Highland Blvd in Inverness.

The Public Information Workshops will start with an open house from 4:30–5:30 p.m., a presentation and discussion starting at 5:30 p.m., and the open house will continue until 7:30 p.m. The June 18 workshop will be geared for the agricultural community and provide a presentation about agricultural demand projections starting at 5 p.m., followed by a public comment period.

The draft RWSP is available for public review and comment at WaterMatters.org/RWSP through July 31, 2015. Please note that the same information will be presented at each of the Public Information Workshops.

For more details about the public workshops, please call George Schlutermann, P.G. at the District Headquarters at 1-800-423-1476, ext. 4212.

Regional Water Supply Plan webpage »


CFWI planning documents available for review/comment; public meetings scheduled

The Central Florida Water Initiative's (CFWI) Steering Committee has released two draft documents for public review and comment that will set a path forward for meeting water supply needs in central Florida for the next 20 years. At upcoming meetings, the public will have an opportunity to learn about and comment on the draft 2035 Water Resources Protection and Water Supply Strategies Plan (Solutions Plan) and minor changes to the draft 2015 Regional Water Supply Plan.

When finalized, the Solutions Plan will provide detailed information about water conservation; specific water supply project options and partnerships with water users; a financial assessment of the project options; management and implementation strategies.

The draft plans are available at cfwiwater.com. Comments can be provided online or by mail and email. Details are available on the website. The comment period will close on July 31, 2015.

CFWI is a collaborative effort among the St. Johns, South Florida and Southwest Florida water management districts, Florida Department of Environmental Protection, Florida Department of Agriculture and Consumer Services, regional public water supply utilities and other stakeholders to develop a unified process to address central Florida’s current and long-term water supply needs. The CFWI planning area includes Orange, Osceola, Polk, Seminole and southern Lake counties.

A series of stakeholder meetings are scheduled to discuss the plans and receive input.

Focus: Environmental stakeholders
Date: Monday, May 18, 2015
Time: 1:30-4 p.m.
Location: ChampionsGate Golf Resort, 8575 White Shark Boulevard, Davenport

Focus: Agricultural stakeholders
Date: Wednesday, May 20, 2015
Time: 2-4:30 p.m.
Location: ChampionsGate Golf Resort, 8575 White Shark Boulevard, Davenport

Focus: Business/government stakeholders
Date: Thursday, May 21, 2015
Time: 9-11:30 a.m.
Location: ChampionsGate Golf Resort, 8575 White Shark Boulevard, Davenport

Additional public meetings will be held in June. The meetings will include presentations and CFWI experts will be available to answer questions and receive public input.

Date: Monday, June 1, 2015
Time: 4:30-6:30 p.m.
Location: Chain of Lakes Complex, 210 Cypress Gardens Blvd. SW, Winter Haven

Date: Thursday, June 4, 2015
Time: 4:30-6:30 p.m.
Location: City Hall, 300 W. Plant Street, Winter Garden

For more information, please visit cfwiwater.com.

Source: SWFWMD News Release »


Updated Floodplain Maps available at Open Houses throughout Polk County

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Bartow – Polk County’s Board of County Commissioners will host a series of Open House meetings in May to give residents and business owners an opportunity to view and comment on soon-to-be released updated flood hazard maps. The maps can be viewed online at www.polk-county.net/boccsite/your-government/floodplain-managementor in person at the Polk County Floodplain Management office, 330 W. Church Street in Bartow.

The new maps show areas throughout the Southwest Florida Water Management District (SWFWMD) portion of Polk County that are at risk for flooding and will be used to help determine flood insurance and building requirements. The South Florida Water Management District portion of Polk County, located along the east side of the county, received updated maps in 2012.

The maps were developed by SWFWMD, in partnership with the Federal Emergency Management Agency (FEMA) and Polk County. According to Randall Vogel, Polk County’s floodplain manager, the process included an extensive, multi-year review of the changes brought about by environmental, land use and other forces, use of state-of-the-art aerial mapping and risk modeling techniques for several new detailed study areas, and a comprehensive pre-release review. These Flood Insurance Rate Maps (FIRMs) are now in digital format for easier access on the internet and will ultimately be used to determine flood insurance rates and requirements.

No formal presentations are scheduled; residents may come to view the floodplain maps anytime between 4:00–7:00 p.m. to the following locations:

Tuesday, May 12
Polk Street Community Center
1255 Polk Street, Bartow 33830

Wednesday, May 13
City of Lakeland, Magnolia Building
698 E. Orange Street, Lakeland 33801

Thursday, May 14
Winter Haven Chain O' Lakes Complex, Pool Room, South Entrance
210 Cypress Gardens Blvd, Winter Haven 33880

FEMA, SWFWMD and county staff will be available at each public meeting to answer questions about flood risk and insurance requirements.

In addition to the public meetings, there will be a 90-day public comment period where property owners can submit appeals and comments if they can show that the maps are technically or scientifically in error. Once all appeals and comments are received and addressed, the maps are expected to become effective in summer 2016. At that time, flood insurance requirements related to the new map information will take effect.

For general questions about the local map update efforts call Polk County Floodplain Management at (863) 534-6767 or (863) 534-6765. For information about flood insurance, contact your local insurance agent or visit www.FloodSmart.gov.

FloodSmart.gov website »


“Managing Florida’s aquifers” will be topic of fall professional conference

For the second year, the American Ground Water Trust is presenting a conference on groundwater management in Florida.This year's event will be on September 21-22 in Orlando.

Selection of presenters and presentations is in progress, but topics covered will include:

• Updates on Florida's Aquifer Storage Recovery projects
• Aquifer Recharge as a feasible antidote to climate change effects
• New USGS Assessment of Floridan Aquifer
• Minimum Flows and Levels: Rule-making and Legislation
• Groundwater management priorities of the State's five Water Management Districts
• How serious is the threat to Florida's groundwater from Oil & Gas well stimulation?
• Does aquifer recharge have a future in managing Everglades environmental flows and water quality issues?

Water managers, engineers, geologists, hydrogeologists, planners, utility operators, water re-use and aquifer recharge consultants, water treatment specialists, water well contractors, groundwater end-users, city & county government, regulatory authorities, environmental NGOs, water attorneys and interested citizens.

More information and online registration »


USGS issues revised framework for hydrogeology of Floridan Aquifer

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USGS scientists have updated the hydrogeologic framework for the Floridan aquifer system that underlies Florida and parts of Georgia, Alabama, and South Carolina.

The Floridan aquifer system is the principal source of freshwater for agricultural irrigation, industrial, mining, commercial, and public supply in Florida and southeast Georgia. The extensive underground reservoir currently supplies drinking water to about 10 million people residing across the area as well as 50% of the water that is used for agricultural irrigation in the region.

By describing the hydrologic and geologic setting of an aquifer, a hydrogeologic framework enables appropriate authorities and resource managers to monitor an aquifer more accurately, improving their ability to protect these critical resources and determine the near- and long-term availability of groundwater.

As the first update of the framework for the aquifer in over 30 years, the revision incorporates new borehole data into a detailed conceptual model that describes the major and minor units and zones of the system. Its increased accuracy is made possible by data collected in the intervening years by the USGS; the Geological Surveys of Alabama, Florida, Georgia, and South Carolina; the South Florida, Southwest Florida, St Johns River, Suwannee River, and Northwest Florida Water Management Districts; and numerous other state and local agencies.

The USGS is releasing two reports as part of its current assessment of groundwater availability of the Floridan aquifer system.

The first report documents the revised framework.

The second report provides datasets that describe the surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system. The data depict the top and base of the aquifer system, its major and minor hydrogeologic units and zones, geophysical marker horizons, and the altitude of the 10,000-milligram-per-liter total dissolved solids boundary that defines the approximate fresh and saline parts of the aquifer system.

Source: US Geological Survey news release »

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