USGS study shows that extreme rainstorms are critical for groundwater recharge in the West

Summit County Citizens Voice

‘Without them, groundwater resources become depleted’

Raindrops ... @bberwyn photo. Raindrops … @bberwyn photo.

Staff Report

Extreme precipitation events that cause severe flooding, loss of life and property damage aren’t exactly at the top of the weather wish list for most people. But it turns out they play a key role in replenishing underground aquifers in the western U.S.

The importance of groundwater will continue to grow in the years ahead — an era of population growth and climate disruption, so understanding the connection between big storms and groundwater recharge is critical, according to U.S. Geological Survey and Bureau of Reclamation scientists who have released a new study analyzing large, multi-year, quasi-decadal groundwater recharge events in the northern Utah portion of the Great Basin from 1960 to 2013.

They evaluated groundwater levels and climate information and identified five large recharge events with a frequency of about 11 to 13 years. Findings show these events…

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