The Grant Water & Sanitation District is a local governmental entity formed in 1964 under Colorado law for the purpose of supplying water and sanitary sewer service.  The District maintains its own sewer mains and the underdrain system installed in the Grant Ranch. Contracts between the District and the Denver Board of Water Commissioners, the City of Littleton, and two other special districts ensure treatment of the District’s sewage as well as full water service to District customers.  For more information about your Grant Water & Sanitation sewer bill and the services we provide visit our website at or call our District office at (303) 674-3379 ext. 200.