Established in 1960, Hague Quality Water is a family-owned business that employs more than 25 individuals. The company s customized and whole-house water treatment plants include water filters and reverse osmosis drinking water systems. Its PHSI s Water Guardian processes water to make it chemical, bacteria, slime and contaminant free. Hague Quality Water offers state certified bacteria test and professional water analysis programs. The company provides water purification equipment installation services for residential and commercial clients. In addition, it offers microprocessor controls with programmed control panels to purify drinking water. Hague Quality Water provides on-call free professional water analysis services. The company maintains a location in Annapolis, Md.