Siphoning Chlorine Solution................................................................................................. 52
Perforated Well Liner and Well Screen................................................................................ 56
Annular or Casing Seal. ........................................................................................................ 66
Multi-Aquifer Well Completion............................................................................................. 66
Well Pit................................................................................................................................... 67
Pitless Adaptor....................................................................................................................... 67
Farm Water Hydrant............................................................................................................. 68
Poor Sewage Systems. ........................................................................................................... 68
Well Contamination............................................................................................................... 73
Contamination from an Abandoned Well ............................................................................ 73
Bridging.................................................................................................................................. 76
Cutting Off the Casing and Mounding the Clay.................................................................. 77