Well installation and annular seal construction techniques that are widely accepted may not be working as constructed. The importance of isolating the primary producing aquifer cannot be stated strongly enough - an effective annular seal above and below the aquifer needs to be established. For any new well construction or well rehabilitation, the importance of understanding the complete hydrostratigraphy cannot be understated. It is and never should be a question of groundwater quantity over groundwater quality. Proper and effective well workover technique includes the incorporation of a thorough evaluation of well construction details, borehole geophysical logs, geochemistry of the aquifers penetrated, and historical well data. This talk continues the discussion on being the solution - help preserve groundwater and the future of the industry. This issue and corresponding corrective actions represent new business opportunities/markets for the established water well professional.