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St. Clair Region Source Protection Area DRAFT Proposed Assessment Report 
Source Protection Planning
Main Report Sections
1.0 Introduction and Background
2.0 Watershed Characterization
3.0 Water Budget & Water Quantity Stress Assessment
4.0 Vulnerability Assessment
5.0 Issues Evaluation
6.0 Conditions Assessment
7.0 Threats and Risk Assessment - Water Quality
8.0 Great Lakes
9.0 Data Gaps and Next Steps

Appendices
Assessment Reports
» Lower Thames Valley

» St. Clair Region

» Upper Thames River
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Appendix 1 - Maps
Map 1-1 Thames-Sydenham & Region Source Protection Region Map 4-6 Aquifer Vulnerability
Map 1-2 St. Clair Region Source Protection Area Map 4-7 Significant Groundwater Recharge Areas (SGRA)
Map 1-3 Drinking Water Systems Map 4-8 Significant Groundwater Recharge Areas (SGRA) Vulnerability
Map 1-4 Areas of Settlement Map 7-1a  Impervious Surface Area within Intake Protection Zones
Map 2-1 Population Density Map 7-1b Impervious Surface Area within Highly Vulnerable Aquifers (HVA)
Map 3-1 Thames-Sydenham & Region Tier 1 Water Budget Subwatersheds Map 7-1c Impervious Surface Area within Significant Groundwater Recharge Areas (SGRA)
Map 3-2 Average Precipitation Distribution Map 7-2 Petrolia, Lambton Area and Wallaceburg Percent Managed Lands
Map 3-3 Average Evapotranspiration Distribution Map 7-3 Petrolia, Lambton Area and Wallaceburg Livestock Density
Map 3-4 Average Annual Infiltration Map 7-4 Highly Vulnerable Aquifers (HVA) and Livestock Density
Map 3-5 Surface Water Potential for Stress Map 7-5 Significant Groundwater Recharge Areas (SGRA) and Livestock Density
Map 3-6 Groundwater Potential for Stress Map 7-6 Highly Vulnerable Aquifers (HVA) and Percent Managed Lands
Map 4-1 Vulnerability Overview - Intake Protection Zones Map 7-7  Significant Groundwater Recharge Areas (SGRA) and Percent Managed Lands
Map 4-2 Lambton Area Water Supply System Intake Protection Zone (IPZ) Map 7-8 Lambton Area Water Supply System Areas Where Activities Are or Would be Drinking Water Threats
Map 4-3 Petrolia Intake Protection Zones (IPZ) Map 7-9 Petrolia Areas Where Activites Are or Would be Drinking Water Threats
Map 4-4 Wallaceburg Intake Protection Zones (IPZ) Map 7-10 Wallaceburg Areas Where Activities Are or Would be Drinking Water Threats
Map 4-5       Highly Vulnerable Aquifers (HVA)    

Appendix 2 - Assessment Report Section Summaries
1.0 Introduction and Background 6.0 Conditions Assessment
2.0 Watershed Characterization 7.0 Threats and Risk Assessment - Water Quality
3.0 Water Budget & Water Quantity Stress Assessment 8.0 Great Lakes
4.0 Vulnerability Assessment 9.0 Data Gaps and Next Steps
5.0 Issues Evaluation  

Appendix 3 - Municipal Drinking Water Systems Summaries
1.0 Lambton Area Water Supply System  
2.0 Petrolia Water Treatment Plant Intake  
3.0 Wallaceburg Water Treatment Plant Intake  

Appendices 4-14
Appendix 4 - Assessment Report Consultation Appendix 10 - Threats and Risk Assessment
Appendix 5 - Watershed Characterization
- Characterization Maps
- A5 Addendum - Species at Risk
Appendix 11 - Glossary of Terms and Acronyms
Appendix 6 - Conceptual Water Budget
- Water Budget Maps
Appendix 12 - References
Appendix 7 - Assessment Report Checklist Appendix 13 - Uncertainty Analysis of Vulnerability Assessment
Appendix 8 - Issues Evaluation Methodology Appendix 14 - Ministry of the Environment Communications
Appendix 9 - Issues Evaluation Flagged Parameters  
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