So before the reverend dumps any blessed river water over Willam's curly locks, I must first pump it through a portable filter capable of screening out a host of nightmarish critters and contaminants, including Cryptosporidium, Compylobacter, Salmonella, E. coli, herbicides, diesel fuel, even polio and Hepatitis A.Which is a shame.Because the Willamette truly is a beautiful river.