Local mitigation strategy (LMS) - Volusia County Government

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SECTION 6: VULNERABILITY ASSESSMENTGEOLOGIC HAZARDS6.14 SINKHOLEBased on historic incidents, the unincorporated areas of Volusia County have been vulnerable to sinkholehazards, with 78 occurring in the study region between 1973 and 2005. Per the Hazards Profiles section,most of the county is at a low to very low risk from sinkholes. However, there is an area within theunincorporated western part of the county that is at medium risk to sinkhole hazards.MEMPHIS data was used to determine the number of people and improved properties that aresusceptible to sinkhole hazards. According to the MEMPHIS analysis, there are 256 people and 115improved properties valued at over $7 million that are in medium risk sinkhole hazard locations in theunincorporated areas of Volusia County.Per the MEMPHIS sinkhole assessment methodology 10 , sinkhole potential was determined based onpoints that were assigned to locations in Volusia County. Four classes of points were assigned, fordistance to historic sinkholes, geology, and soils:2 points if cell was within 2000m of an existing sinkhole;1 point if cell between 2000m and 5000m of an existing sinkhole;1 point if the cell was in the same USGS surface geologic unit as an existing sinkhole;1 point if the cell was in the same NRCS soil unit as an existing sinkhole.Each cell as assigned a value from 0 to 4:0: no significant risk1: low risk2: moderate risk3: high risk4 very high riskThe likelihood of experiencing future sinkholes is high in the area identified in Volusia County.10 MEMPHIS assessment methodology: http://lmsmaps.kinanco.com/methodqr.htmlVolusia County Multi-jurisdictional Local Mitigation StrategyFebruary 20106:33
SECTION 6: VULNERABILITY ASSESSMENT6.15 TSUNAMIAlthough, historically there have been no occurrences of tsunamis in Volusia County, the potential exists.The likelihood is low, but the consequences would be catastrophic.Table 6.18 lists the number of people and improved parcels (properties with structures), the percentageof properties and the property values that are located in the tsunami inundation zone, based onMEMPHIS data. There were several gaps in the MEMPHIS data that excluded the barrier islands along theshoreline. These areas appeared to be susceptible to tsunami inundation and/or potential inhabitabilitydue to infrastructure loss in low lying areas. To be conservative, the analysis was performed byaccounting for these barrier island areas as well.TABLE 6.18: Volusia County Improved Property at Risk to TsunamiJURISDICTIONNUMBER OF PEOPLEAT RISKNUMBER OFIMPROVED PARCELSAT RISKPERCENTAGE OFIMPROVED PARCELSAT RISKVALUE OFIMPROVED PARCELSAT RISKDaytona Beach 45,910 12,841 68.46% 1,678,914,461Daytona BeachShores 4,343 536 100.00% 108,379,184De Bary 0 0 0.00% 0De Land 0 0 0.00% 0Deltona 0 0 0.00% 0Edgewater 19,504 9,354 99.99% 806,218,563Holly Hill 12,201 4,533 99.89% 429,857,493Lake Helen 0 0 0.00% 0New Smyrna Beach 20,791 10,110 91.30% 1,253,431,731Oak Hill 1,760 888 100.00% 67,557,864Orange City 0 0 0.00% 0Ormond Beach 28,559 11,384 73.30% 1,545,623,219Pierson 0 0 0.00% 0Ponce Inlet 2,513 1,102 100.00% 169,838,467Port Orange 30,218 11,397 55.80% 1,131,602,766South Daytona 13,453 4,548 99.87% 481,675,529Unincorporated 29,382 14,132 30.87% 1,347,435,508TOTAL 208,634 80,825 43.21% $9,020,534,785Source: MEMPHIS and Volusia County GIS DepartmentVolusia County Multi-jurisdictional Local Mitigation StrategyFebruary 20106:34
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VOLUSIA COUNTY, FLORIDAMULTI-JURISD
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SECTION 1: INTRODUCTION1.2 PURPOSET
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SECTION 1: INTRODUCTIONand land use
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SECTION 2: PLANNING PROCESSSECTION
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SECTION 2: PLANNING PROCESSPlan Out
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SECTION 2: PLANNING PROCESSHelp com
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SECTION 2: PLANNING PROCESSDiscussi
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SECTION 3: COMMUNITY PROFILESECTION
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SECTION 3: COMMUNITY PROFILETABLE 3
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SECTION 3: COMMUNITY PROFILE3.3 HOU
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SECTION 3: COMMUNITY PROFILEIn 2007
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SECTION 4: HAZARD IDENTIFICATIONTAB
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SECTION 4: HAZARD IDENTIFICATIONTAB
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SECTION 5: HAZARD PROFILESMajor Dis
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SECTION 5: HAZARD PROFILESTABLE 5.2
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SECTION 5: HAZARD PROFILES5.3 HURRI
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SECTION 5: HAZARD PROFILES5.3.2 Loc
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SECTION 5: HAZARD PROFILESFIGURE 5.
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SECTION 5: HAZARD PROFILESHurricane
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SECTION 5: HAZARD PROFILES5.4.2 Loc
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SECTION 5: HAZARD PROFILES5.4.4 Pro
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SECTION 5: HAZARD PROFILESto late 8
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SECTION 5: HAZARD PROFILESFigure 5.
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SECTION 5: HAZARD PROFILES5.8.3 His
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SECTION 5: HAZARD PROFILES5.9 DROUG
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SECTION 5: HAZARD PROFILESwas expan
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SECTION 5: HAZARD PROFILESexpected
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APPENDIX B: BYLAWS AND OPERATING PR
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Article IV. ObjectivesThe objective
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B. Meetings, Voting and Quorum1. Me
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• Periodic review of the status o
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In its discretion, the LMS Working
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This analysis may be conducted by t
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• The participants proposing the
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• The currently approved listing
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LMS Working Group, with the support
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Volusia PreparesTHE VOLUSIA COUNTY
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Volusia County Local Mitigation Str
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jurisdictions, the Florida Division
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file://C:\Documents and Settings\18
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Aug. 17, 2009Contact: Shelley Szafr
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APPENDIX F: INDIVIDUAL JURISDICTION
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PriorityHazard(s)Mitigation Techniq
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Local mitigation strategy (LMS) - Volusia County Government

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