Geographic Information Systems and Modeling
Outline
Geographic Information Systems
Modeling with GIS
Septic Suitability Model
Soil Map
Septic Suitability of Soils
Slope Map
Weighted Overlay
Septic Suitability Results
Erosion Potential Model
Slope and Soil Maps
1998 Land Use Map
Proximity Maps
Weighted Overlay
Erosion Potential Results
Summary of GIS Models
Buffer Strip and Septic Surveys: Results and Remediation

Elizabeth Turnbull
"Shoreline Zoning Regulations"
MaineÕs Residential Shoreline Zoning Regulations
Development Assessment
Buffer Strips
"Poorly buffered property"
"Results show a large quantity..."
Slide 25
Buffer Remediation
Wastewater Disposal in Threemile Pond
Septic Health
Some Watershed Remediation Techniques


Sarah Goodwin
Overview of Selected Watershed Management
Phosphorus Budget
Phosphorus Inputs
Road Survey
Crowning and Grading
Ditches
Water Diversions
Road Assessment Results
Problem Areas
Other Forms of Remediation
Agriculture
Other Remediation Techniques
Some Watershed Remediation Techniques
Lake Remediation

 Aubris Pfeiffer
Overview of Remediation
Definition of Lake Remediation
Challenges for Threemile Pond Remediation
Application to Threemile Pond
Common Remediation Techniques
Additional techniques
Potential Techniques for Threemile Pond
ALUM TREATMENT
"Ideal tool for determining alum..."
Hypolimnetic aeration
Biological Control: Fish Stock Manipulation
Implementation in Threemile Pond
Emily Arell
Historic Population Trends
Future Population Trends
Historic and Future Development Trends
Prediction of Land Use  Changes by 2040
Watershed Management
In-lake Remediation Techniques
Threemile Pond Remediation Summary
Water Quality Monitoring
Community Awareness and Education
Grants and Funding
General Summary
Threemile Pond
Special Acknowledgments
Questions