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October 27, 2010
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Page 1: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

October 27, 2010

Page 2: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Work Plan ‐ EAS ComponentsCompleted Tasks:Organization, Background Investigation and Comparison of Review Criteria (B1) Ecological Assessments and Database Compilation (B2) Data Evaluation (B3)

Baseline condition of wetlands has been evaluatedEvaluate Existing Environmental Monitoring Network (B4)

Existing monitoring network has been identified

Page 3: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Work Plan ‐ EAS ComponentsWork In Progress:Data Evaluation (B3)

Comparison of simulated model results to observed  field conditionsCoordination with Modeling and Tools Subgroup to estimate groundwater availabilityPresentation of findings at public workshops

Page 4: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Work Plan – EAS ComponentsWork In Progress:Evaluate  Existing Environmental Monitoring Network (B4)

Identification of additional monitoring needsEnvironmental Assessment Report (B5)

Development of a final report describing the methods and results of the environmental impact assessments (current  and future)

Page 5: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Environmental Assessment ProcessIdentification of evaluation sitesData collection (field data, aerials and other sources)Database compilation (Google/KML and ArcMap/GIS)Data evaluation (wetlands, lakes, and streams)VerificationAdditional data collection Compilation of preliminary results

Page 6: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Field Assessment DataHabitat conditionPhoto documentationSoilsVegetative community characteristics

Community type(s)ZonationPlant species list and abundanceObserved health

Page 7: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Field Assessment DataHydrologic indicators

Moss collarsLichen or stain linesAdventitious rootsTree buttressingWetland edge characteristicsObserved water levels

Wetland SF‐CT, Orange County, Florida

Page 8: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Field Assessment DataDrainage alterations

DitchesCanalsDrainage wellsCulvertsRetention ponds

Landscape contextOther field data or indicators

Page 9: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Other Sources of DataDrainage well locationsNatural and man‐made drainage feature mapsCounty soil survey dataUSGS quad mapsLandscape position maps (ridge, slope, valley)Historical aerial photography

Page 10: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

MethodsSeparated sites into non‐confounded and confounded (e.g., ditches, canals, regulated lakes, RIBS) categoriesSeparated each category into wetland, lake or stream subgroupsReviewed field data/photos and historical aerial photographyDetermined if hydrologic stress is present

Page 11: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Field Indicators of StressVegetation

Invasion by plants of drier communitiesLeaning/fallen treesDead trees or other vegetationShifts and changes in plant communitiesAge class differences of treesLack of regeneration of wetland plant species

Page 12: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Field Indicators of StressOrganic soils

Oxidation/subsidence (exposed roots)Fissuring

HydrologyEvidence of reduced hydrologyLack of hydrologic indicators

Page 13: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Abnormal Tree Fall – Leaning Trees

Page 14: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Vegetation Shifts

Mature Pine Edge

New Pine Recruitment

Page 15: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Soil Fissures

Page 16: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Organic Soil Loss

f

~Historic Soil Level

Exposed roots (soil subsidence)

Soil subsidence

Page 17: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Methods for Determining StressHerbaceous Wetlands and LakesStress Indicators

Organic soil fissuringLack of hydrologic indicatorsShifts or changes in plant communities

Invasion of woody speciesChanges from historical condition

Aerial Photography – Time Series AnalysisChange in spatial extent and wetland typeHydrologic change (drier condition)Wetland alterations (dredging, filling)

Page 18: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Methods for Determining StressForested Wetlands (includes all stream sites)

Stress indicators

Aerial photography analysisFallen treesWetland alterations (dredging, filling, logging)Change in spatial extent and wetland type

Soil subsidence/exposed roots Soil fissuring

Invasion by plants of drier communities

Age class difference in trees

Shifts or changes in plant communities

Lack of regeneration

Leaning/fallen trees Lack of hydrologic indicators

Dead trees or other vegetation

Page 19: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Preliminary Results397 – Assessment sites231 – Wetlands20  – Streams146 – Lakes

Page 20: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Assessment Sites

Page 21: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Non‐Confounded Sites

Page 22: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Non‐Confounded/Stressed Sites

Page 23: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

All Stressed Sites

Page 24: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Work In Progress25 additional sites to be evaluatedFinalize results and databasesIdentify additional monitoring needsDevelop Environmental Assessment Report

Page 25: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Work In ProgressCoordination with Modeling/Tools Team

Evaluation of model runsIdentification of groundwater  availabilitySolutions evaluation

Page 26: Environmental Assessment Subgroup Update › meetings › pdfs › 2010 › 10-27 › ... · Evaluate Existing Environmental Monitoring Network (B4) y Identification of additional

Questions


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