Water Supply Feasibility Study Report

Contents

• Cover (107 kb, 1 page)
• Table of Contents (117 kb, 3 pages)
• 1.0 EXECUTIVE SUMMARY (74 kb, 2 pages)
• 2.0 BACKGROUND (4.11 mb, 6 pages)
  • 2.1 Project Area Background
  • 2.2 Water Supply Feasibility Study Objectives
  • 2.3 Homeowner Study Area Questionnaire Responses
  • 2.4 Drinking Water Regulations
    • 2.4.1 Introduction
    • 2.4.2 Current Water Quality Regulations
    • 2.4.3 Contaminant Candidate List
• 3.0 GROUNDWATER CONDITIONS (10.71 mb, 15 pages)
  • 3.1 Regional Geology and Hydrogeology
  • 3.2 Study Area Geology and Hydrogeology
  • 3.3 Project Area Groundwater Use
  • 3.4 Existing Well Groundwater Quality
    • 3.4.1 Well Information
    • 3.4.2 Existing Well Water Quality Data
  • 3.5 Background Well Water Quality Data
  • 3.6 Battlefield Golf Course Groundwater Quality
• 4.0 WATER SUPPLY ALTERNATIVES (1.19 mb, 19 pages)
  • 4.1 Alternative 1 - Extend City of Chesapeake Water Distribution System
    • 4.1.1 Water Main Extension
    • 4.1.2 Water Service Connections
    • 4.1.3 Distribution Supply/ Fire Protection
    • 4.1.4 Other Considerations
    • 4.1.5 Advantages/Disadvantages
  • 4.2 Alternative 2 - New Community Water Supply System
    • 4.2.1 Community Water Demand
    • 4.2.2 Raw Water Development: Proposed Aquifer Source
    • 4.2.3 Proposed Well Information
    • 4.2.4 Aquifer Water Quality and Treatment Requirements
    • 4.2.5 Reverse Osmosis Treatment
    • 4.2.6 Pre-Treatment Processes
    • 4.2.7 Permitting Requirements
    • 4.2.8 Post Treatment Water Conditioning
    • 4.2.9 Disinfection/Fluoridation Requirements
    • 4.2.10 Distribution System Requirements
    • 4.2.11 Water Storage Facilities – Fire Protection
    • 4.2.12 Land Acquisition
    • 4.2.13 O&M Issues
    • 4.2.14 Other Considerations
    • 4.2.15 Advantages/Disadvantages
  • 4.3 Alternative 3 – Individual Point of Entry (POE) Treatment System for Existing Wells
    • 4.3.1 Housing Requirements
    • 4.3.2 Brine Handling
    • 4.3.3 O&M Issues
    • 4.3.4 Other Considerations
    • 4.3.5 Advantages/Disadvantages
  • 4.4 Alternative 4 – Development and Installation of New Individual Home Owner Supply Wells
    • 4.4.1 Current Groundwater Conditions and Ongoing Investigations
    • 4.4.2 New Well Installation
    • 4.4.3 Permitting Requirements
    • 4.4.4 Other Considerations
    • 4.4.5 Advantages/Disadvantages
• 5.0 COST EVALUATION AND RECOMMENDATIONS (159 kb, 5 pages)
  • 5.1 Present Worth Opinion of Cost evaluations
  • 5.2 Alternative Evaluation Matrix
  • 5.3 Recommended Alternative
• 6.0 REFERENCES (84 kb, 1 page)
• TABLES
  • Table 1 DEQ Observation Wells Summary (110 kb, 1 page)
  • Table 2 Surficial Aquifer Water Quality (163 kb, 1 page)
  • Table 3 Yorktown-Eastover Aquifer Water Quality (152 kb, 1 page)
• FIGURES
  • Figure 1 Site Location (4.04 mb, 1 page)
  • Figure 2 Past Sample Locations (6.68 mb, 1 page)
  • Figure 3 General Hydrogeologic Section (143 kb, 1 page)
  • Figure 4 Residential Sampling Locations (3.74 mb, 1 page)
• EXHIBITS
  • Exhibit 1 Extend City Water Distribution System (422 kb, 1 page)
  • Exhibit 2 Community Well System (387 kb, 1 page)
• APPENDICES
  • APPENDIX A Resident Questionnaire (63 kb, 2 pages)
  • APPENDIX B Virginia Water Quality Standards (2.02 mb, 23 pages)
  • APPENDIX C National Primary and Secondary Drinking Water Standards (819 kb, 7 pages)
  • APPENDIX D The Second Contaminant Candidate List (EPA, 2005) (415 kb, 7 pages)
  • APPENDIX E The Third Contaminant Candidate List (Draft, EPA, 2008) (3.41 mb, 29 pages)
  • APPENDIX F Schnabel: Installed Monitoring Wells (MW-1 &MW-2) Report (8.12 mb, 74 pages)
  • APPENDIX G Existing Well Groundwater Quality Data (9.69 mb, 18 pages)
  • APPENDIX H Vicinity Groundwater Quality Data from VDEQ (4.05 mb, 124 pages)
  • APPENDIX I Battlefield Golf Course Groundwater Quality Data (70 kb, 2 pages)
  • APPENDIX J 2007 City of Chesapeake Water Quality Report (12 mb, 4 pages)
  • APPENDIX K Water Storage Requirement for Alternative 2 (101 kb, 2 pages)
  • APPENDIX L City of Chesapeake Public Utility Charges (1.33 mb, 2 pages)
  • APPENDIX M Reverse Osmosis for Community Water System (4.07 mb, 49 pages)
  • APPENDIX N Point of Entry Reverse Osmosis System (1.01 mb, 9 pages)
  • APPENDIX O Present Worth Comparison of Alternative Evaluation (124 kb, 16 pages)
  • APPENDIX P Alternative Evaluation Matrix (107 kb, 2 pages)