Astor Flood StudyAstor Flood StudyLake County Public WorksLake County Public WorksDanielle M. Honour, P.E.Danielle M. Honour, P.E.CDMCDM

November 15, 2006November 15, 2006

Meeting AgendaMeeting Agenda

IntroductionsIntroductions

PurposePurpose

Project OverviewProject Overview

Project ScheduleProject Schedule

Resident Feedback & CommentsResident Feedback & Comments

Purpose of the StudyPurpose of the Study

Limited Limited Stormwater Stormwater InfrastructureInfrastructureHistory of History of Residential & Residential & Street FloodingStreet FloodingStudy to Identify Study to Identify System System Improvements to Improvements to Address Address Flooding & Water Flooding & Water Quality IssuesQuality Issues

Data Review & EvaluationData Review & Evaluation

Existing and Future (buildExisting and Future (build--out) Land Use Mapout) Land Use MapWetlands MapWetlands MapAerial Topographic MapsAerial Topographic MapsHistorical Rainfall DataHistorical Rainfall DataSoils DataSoils DataExisting Engineering Reports & StudiesExisting Engineering Reports & StudiesHistorical Flood Complaint Records andHistorical Flood Complaint Records andLocation MapLocation MapHigh Water Mark ElevationsHigh Water Mark ElevationsFlow and Stage Measurements (St. Johns River)Flow and Stage Measurements (St. Johns River)

County has recently collected detailed 1County has recently collected detailed 1--foot foot topographic contour information for the Astor areatopographic contour information for the Astor area

Elevation Elevation DataData

Stormwater System InventoryStormwater System Inventory

Southeastern & Survey Mapping Corporation (SSMC)Southeastern & Survey Mapping Corporation (SSMC)CulvertsCulvertsCurb InletsCurb Inlets

ManholesManholesSwales/DitchesSwales/Ditches

PondsPondsControl StructuresControl Structures

Water Quality AnalysisWater Quality Analysis

Estimate stormwaterEstimate stormwater--related pollutant loads related pollutant loads generated within the Astor limitsgenerated within the Astor limits

Pollutants ultimately reach the St. Johns RiverPollutants ultimately reach the St. Johns River

St. Johns River is considered impaired bySt. Johns River is considered impaired bythe State of Florida for Dissolved Oxygenthe State of Florida for Dissolved Oxygenand Nutrientsand Nutrients

Help target areas that may require additional Help target areas that may require additional stormwater treatment for water quality as well stormwater treatment for water quality as well as floodingas flooding

Stormwater Needs EvaluationStormwater Needs Evaluation

Collected dataCollected data

System InventorySystem Inventory

Citizen FeedbackCitizen Feedback

Water QualityWater QualityAnalysis ResultsAnalysis Results

Identify and prioritize the stormwater needsIdentify and prioritize the stormwater needs(both flood control and water quality management) (both flood control and water quality management)

Evaluation of AlternativesEvaluation of Alternatives

Develop a conceptual Develop a conceptual improvement plan to address improvement plan to address the stormwater management the stormwater management needs of Astorneeds of AstorMay include a mixture of May include a mixture of conveyance and storage conveyance and storage improvements and water improvements and water quality treatmentquality treatmentEstimate conceptualEstimate conceptualproject costsproject costsRecommend a phased capital Recommend a phased capital improvement planimprovement plan

Public Participation ProgramPublic Participation Program

Public Meetings & Public Information BrochurePublic Meetings & Public Information BrochureProject Website (currently under development)Project Website (currently under development)Lake County Board of County Commissioner Lake County Board of County Commissioner (BOCC) Meetings (BOCC) Meetings

Project ScheduleProject Schedule

Phase I (current phase) to be completed by Phase I (current phase) to be completed by June 2007June 2007Second Public Meeting Second Public Meeting -- update on the project update on the project status and to solicit input on stormwater status and to solicit input on stormwater issues prioritization (early 2007) issues prioritization (early 2007) Third Public Meeting Third Public Meeting –– present the findings present the findings (mid 2007)(mid 2007)

Your Feedback is Most Important!Your Feedback is Most Important!

Please sign in on the signPlease sign in on the sign--in sheetin sheetPlease fill out comment forms providedPlease fill out comment forms providedPlease be a specific as possible (i.e., Please be a specific as possible (i.e., nature of the problem location)nature of the problem location)Please mark the location of the problem Please mark the location of the problem on the maps with the stickers providedon the maps with the stickers providedPlease put the sticker number on your Please put the sticker number on your completed comment formcompleted comment formRepresentatives from the County and Representatives from the County and CDM are available to answer your CDM are available to answer your questionsquestions

County Contact InformationCounty Contact Information

Lake County Public WorksLake County Public Works437 Ardice Avenue437 Ardice Avenue

Eustis, FL 32726Eustis, FL 32726(352) 483(352) 483--90009000

MHamilton@co.lake.fl.usMHamilton@co.lake.fl.us