[1] Univ Alaska Anchorage, Coll Engn, Civil Engn Dept, Anchorage, AK 99508 USA
[2] Univ Alaska Fairbanks, Water & Environm Res Ctr, Fairbanks, AK 99775 USA
[3] Southern Nevada Water Author, Water Qual Res & Dev, Henderson, NV 89015 USA
[4] Univ Alaska Fairbanks, Dept Civil & Environm Engn, Fairbanks, AK 99775 USA