BESST finds subsurface mapping to be of economic value to the water purveyor because it can identify new drilling sites and simultaneously pinpoint what areas to avoid drilling new wells. Furthermore, subsurface mapping can help determine favorable locations for packer installations in an effort to avoid treatment without performing downhole diagnostics for the entire well-field; and provide insight into which wells can be repurposed for mitigating contaminant transport and achieving aquifer rehabilitation. The subsurface mapping support services BESST provides build upon creating pragmatic solutions and recommendations that care for the client's concerns and bottom line.