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Portland has a schedule to replace its open finished drinking water reservoirs with enclosed storage by December 31, 2020
"A finished drinking water reservoir contains water that has been through all the treatment steps required by the federal Safe Drinking Water Act and can be delivered to the public without further treatment."

One Man's Pee Pushes Portland To Flush 38 Million Gallons Of Water
"Though they concede it's unlikely the public was endangered, officials in Portland, Ore., have decided to drain 38 million gallons of water from a reservoir after a young man was observed urinating into it on Wednesday."

Oregon Drought Watch

Here's How Long That Teen Would Have to Pee in the Portland Reservoir to Make It Unsafe to Drink
"A teenager urinated into one of the city's drinking water reservoirs the other day. That's gross, sure, and aggravating-what a brat!"

What Contaminates Are in Water
"The sources of drinking water generally include rivers, lakes, streams, ponds, reservoirs, springs, and wells."

Portland's Water System

Drinking Water Contaminants
"National Primary Drinking Water Regulations (NPDWRs or primary standards) are legally enforceable standards that apply to public water systems."

Portland, Ore., is dumping 38 million gallons of drinking water because of a urinating teenager.
"It took one teenager urinating in a reservoir for the city of Portland, Ore., to dump enough water to fill about 57 Olympic-size swimming pools, even though the water was deemed to be safe."

Portland will flush 38 million gallons of water after man urinates in Mt. Tabor Reservoir
"Portland administrators will flush 38 million gallons of water from Mt. Tabor Reservoir 5 after a 19-year-old man urinated in the city's drinking supply."

Bottled Water Regulation and the FDA
"Bottled water is an increasingly popular beverage in the U.S. Total U.S. bottled water sales have grown from roughly 6% to more than 13% per year over the last five years, according to data from and from the Beverage Marketing Corp (BMC)."