Hugo, a city of lakes, has a grand water conservation plan to end its dependency on wells and instead tap its abundant stormwater for irrigation and, someday, treat it for indoor use.
Three major irrigation projects in the works will save pumping millions of gallons of water from the vast St. Peter-Prairie du Chien-Jordan aquifer, which by all accounts is shrinking because of overuse by many metro-area cities. In Hugo, it became increasingly apparent to city leaders that pumping precious fresh water out of the ground while sending torrents of stormwater down the watershed to the Mississippi River no longer made sense.
"It's very clear that it's a concern that we're taking water out of the aquifer faster that we're putting back in," said City Council Member Chuck Haas, who also serves on the Metropolitan Council's Water Supply Advisory Committee.
That discussion led to a discovery that stormwater discharged out of Hugo, where 40 percent of the land is covered with lakes and wetlands, exceeded by 10 times the water drawn from wells. The annual stormwater volume stands at 4 billion gallons, compared with 400 million gallons of well water.
The first stormwater project, already in the works, will reduce well pumping by 32 million gallons a year at Oneka Ridge Golf Course. Two other irrigation projects in the Water's Edge and Beaver Ponds neighborhoods, combined with Oneka Ridge, will divert as much as 100 million gallons that otherwise would be pumped from the aquifer.
That's equivalent to saving water for as many as 1,250 housing units — a significant milestone, because the city doesn't want to further deplete groundwater as more houses are built.
Haas, having worked with metro-area groundwater studies and concerns for several years, said the city envisions a need to someday treat its stormwater for indoor use, including drinking, and is exploring how that can be accomplished.
"It's a lofty goal, but we figured we eventually wouldn't take any water out of the aquifer," he said.