‘It costs 10 times more to clean out a reservoir than to build a new one’ — Jon Monson

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From the Fort Collins Coloradoan (Bobby Magill):

Experts from around the region painted an uncertain picture of the area’s water future Wednesday morning at Northern Water’s fall water user’s meeting in Greeley.

As ash and silt continue their relentless descent into the Poudre River during even tiny rainstorms, Fort Collins will have to spend much more money on water filtration and purification in the coming years and potentially treat drinking water with additional chemicals to ensure the muck stays away from your faucet, Fort Collins water production manager Lisa Voytko said. The silt washing into Seaman Reservoir from the Hewlett and High Park wildfire burn areas could be costly to Greeley, said Jon Monson, the city’s water and sewer director…

Voytko said she’s worried about spiking levels of total organic carbon in Poudre River water every time it rains. That’s because the carbon has to be removed with chlorine, a process that creates potentially toxic byproducts in drinking water that have to be removed at great expense. Polymers have to be used to remove the turbidity from the drinking water, and it’s expensive to dispose of the byproducts of that process, she said…

The summer’s wildfires have clogged Fort Collins’ water intake structures on the Poudre River with sediment and debris, reducing their intake capacity. The sediment washing off the burn areas is so extreme that the city had to flush out its intake structures four times in September. Normally, the city flushes them once a year. Then there’s a concern all the silt and muck in the Poudre River and Seaman Reservoir could cause major algae blooms, further degrading the water quality and treatment expense, Voytko said.

More water pollution coverage here.

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