[1] Calif State Univ Fresno, WET, Full Circle Energy Inc, Fresno, CA 93740 USA
[2] Polytech Univ Puerto Rico, Sci Res & Dev Dept, San Juan, PR 00919 USA
[3] US EPA Reg 2, Municipal Water Programs Branch, Caribbean Environm Protect Div, New York, NY 10007 USA
[4] Polytech Univ Puerto Rico, Dept Civil & Environm Engn, San Juan, PR 00919 USA