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ii A searchable database consisting of compiled water reuse guidelines was created as a screening tool for decision-analysis for potential beneficial reuse in 1) irrigation, 2) livestock watering, 3) aquaculture, and 4) drinking (potable) water. Data compiled from literature for the four water reuses (FWR) yielded guideline values for over 50 water quality parameters, including concentrations of inorganic and organic constituents as well as general water chemistry parameters. These water quality guidelines can be used to identify constituents of concern in water, to determine levels to which constituents must be treated for water reuse applications, and to assess the suitability of treated water for reuse. In addition to water quality, water quantity was also assessed. Water volumes required for producing 16 different crops in 14 countries were estimated as an example of assessing water quantity in the decision-making process regarding potential for water reuse. Calculations were made to assist in crop planning by estimating land and wate