Man and mankind today stands in the midst of deep scientific and engineering knowledge prowess. In the similar vision heavy metal groundwater treatment today are in the midst of deep scientific introspection. The immediate needs of the hour are engineering advancements in the field drinking water and industrial wastewater treatment. Arsenic drinking water contamination is a burning issue in developing and developed nations around the world. The author deeply reviews the vast and versatile scientific and engineering forays in the field of arsenic groundwater remediation. A newer dawn in the domain of environmental engineering will truly usher in if researchers, students, scientists and policy makers across the globe take right and positive steps in devising newer conventional and non-conventional environmental engineering tools. In the distant future, scientific research pursuit in environmental engineering science and chemical process engineering will widen human scientific thoughts and knowledge prowess in the field of arsenic groundwater remediation.