Water Wells

Introduction
- Groundwater: Your Health and Your Business …1
- Old Wells and New Wells …2
- What’s in This Book …3
Groundwater Basics
- Water in the Earth …5
- Aquifers: Groundwater You Can Use …9
- Finding Groundwater …13
- Typical Information in a Water Well Record …13
- Groundwater Quantity …14
- Groundwater Quality …18
- Groundwater Contamination …20
Well Basics
- Types of Wells …25
- Things to Know About Regulations …27
- Types of Pumps …29
- Sizing the Pump …31
- General Considerations for Pump Installation …31
Best Management Practices
- New Well Construction: Location …33
- Drilled Wells: Construction, Upgrading, Plugging and Sealing …37
- Case Study: Wellington County, 1995 …47
- Case Study: Oxford County, 1996 …50
- Large-Diameter Wells: Construction, Upgrading, Plugging and Sealing …52
- Case Study: Elgin County, 1995 …58
- Case Study: Wellington County, 1996 …62
- Case Study: Wellington County, 1995 …63
- Well Points and Springs …64
- Well Maintenance …65
- Measuring Your Well …67
- Well Yield …71
- Chlorination …73
- Monitoring …76
- Well Troubleshooting …78
- Water Treatment …79
Appendices
- Legislation …82
- Metric–Imperial Unit Conversions …83
- Water Quality Standards in Ontario and Canada …84
- Ontario Well Construction Regulations …85
- Well Information and Monitoring Record Sheets …87
- Glossary …89