1. CDPH (California Department of Public Health) 2014 Groundwater Replenishment Using Recycled Water, DPH-14-003E
2. Potable Reuse Trains Throughout the World;Gerrity;Journal of Water Supply: Research and Technology-AQUA,2013
3. Modeling the Risk From Giardia and Viruses in Drinking Water;Regli;Journal AWWA,1991
4. TCEQ (Texas Commission on Environmental Quality) 2014 Personal communication with Marlo Wanielista Berg
5. Trussell , R.R. Salveson , A. Snyder , S.A. Trussell , S.A. Gerrity , D. Pecson , B. 2013 Potable Reuse: State of the Science Report and Equivalency Criteria for Treatment Trains, a Report for WateReuse Research Foundation Project 11-02 Alexandria, Va.