This is the third edition to what is our top-selling reference book year after year! This tremendous resource should be on your desk if you are serious about the groundwater industry.It features 20 years of advancements in technology and knowledge gained in the field. Included are new borehole geophysical techniques, information on underbalanced and horizontal drilling, new approaches to well development, as well as details on ASR, groundwater monitoring and remediation, prepack screens for water interactive well design and well maintenance programs for water well contractors and design engineers.This reference manual is the comprehensive guide for the design, installation, and maintenance of water wells.