Other Planning Considerations. ........................................................................................... 12
Test Water Quality.......................................................................................................... 12
Treat Water...................................................................................................................... 12
Monitor the Supply.......................................................................................................... 12
Maintain the Well and Water System............................................................................ 12
Protect from Contamination........................................................................................... 12
Average Daily and Annual Water Requirements Worksheet.............................................. 13
Sizing of Water Systems Worksheet..................................................................................... 15
Farm Water Supply Inventory Worksheet........................................................................... 16
Module 3—Design and Construction of Water Wells........................................................17
Choosing a Licensed Water Well Contractor........................................................................ 17
Choosing a Well Site.............................................................................................................. 18
Well Design Considerations.................................................................................................. 20
Well Depth....................................................................................................................... 20
Types of Wells.................................................................................................................. 20
Casing Size and Type...................................................................................................... 22
Intake Design................................................................................................................... 22
Annular Seal.................................................................................................................... 24
Well Cap........................................................................................................................... 24
Well Completion..................................................................................................................... 25
Well Development............................................................................................................ 25
Yield Test......................................................................................................................... 26
Disinfecting the Well....................................................................................................... 26
Module 4—Water Well Drilling Agreements.......................................................................27
Water Well Drilling Agreement Example. ........................................................................... 27
Water Well Casing Specifications......................................................................................... 33
Water Well Drilling Report................................................................................................... 34
Water Well Drilling Agreement Form.................................................................................. 35