Honestly, I first though it was a joke. The more I think about this story now, the less funny it gets, and the more tragic and frightening.

A security camera captured the image of a 19-year-old jerk urinating into Portland, Oregon’s Mt. Tabor Reservoir system, so “to be safe,” the city is dumping all 38 million gallons of drinking water. From Ars Technica:

“David Shaff, Portland’s water bureau administrator, reserves a special disgust specifically for human urine. In 2011, when Shaff drained the reservoir following a urination, he reasoned to the Portland Mercury, ‘Do you want to be drinking someone’s pee?… There’s probably no regulation that says I have to be doing it but, again, who wants to be drinking pee?’ This time around, Shaff wrote in a statement, ‘Our customers have an expectation that their water is not deliberately contaminated.'”

That’s right: this is the second time Portland has done this. Slate does the “Wow, what an idiot!” math:

“…a typical urination of about 1/8 gallon in a reservoir of 38 million gallons amounts to a concentration of 3 parts per billion. That’s billion with a b. For comparison, the Environmental Protection Agency’s limit for arsenic in drinking water—arsenic!—is 10 ppb. The EPA doesn’t appear to have a limit for urine in drinking water, but it does limit nitrates in drinking water to 10,000 ppb, and urine does contain a lot of nitrogen, so let’s use that as a proxy. How many times would that teenager have to pee in a Portland reservoir to produce a urine concentration approaching the EPA’s limit for nitrates in drinking water? About 3,333 times.”

Continue reading →