HomeMy WebLinkAbout2014 02-15 Running on empty? Wells draining the metro area STAR TRIBUNE �`%�Star�'riburre
Running on empty? Wells
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Article by:Kevin Giles -�
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February 15,2014-2:00 PM �' ��`''� � � ry��;'° �
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Imagine 60,000 private wells and hundreds of city � r � ��'
wells all sipping from the same water source,like �� `���������� �^ � �
straws draining a bottle. � �� � �����"��
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ThaYs the grim picture in the seven-county metro �^�..,- •;,,,� �
area,where a relentless demand for groundwater �` � � � � �� °_�
could leave millions of people sitting high and dry � i�: �
unless evasive action is taken,said Sandy � �; �. ,
� � ,�, � " ,�
Rummel,who chairs the Metropolitan Council's
environment committee. " ' � '�� � ..
<�The que,tion is,can wa reba(ance our 4vater
"Communities are beginning to grappie with their resources that have relied so heavily on
groundwater?»$andy Rummel
responsibility to deal with water and they're
learning they can't do it alone,"Rummel said Feed Loader
during a recent forum in Stillwater."There is a lot of water that we don't know where iYs
going."
The forum,which included state Rep. Peter Fischer,DFL-Maplewood,also touched on the
importance of adapting surface water for large-scale uses such as irrigation.Such projects
already are being done in Woodbury and Hugo.
The massive Prairie du Chien-Jordan aquifer,which supplies much of the metro area's water,
is being consumed at an alarming rate—and faster than iYs being replenished,Rummel said.
The aquifer has fallen 20 feet in 35 years,in large part because of a soaring number of wells
in suburban counties.
Some of the worst drawdown,in the east metro,could deplete half the aquifer by 2040 under
a"business as usual"scenario, Rummel said.
Signs of disappearing stores of groundwater have appeared everywhere,from declining lake
levels in White Bear Lake and Shoreview to wells running dry in Chanhassen,to damaged
trout streams in the southeast metro.
Growing groundwater use
Until 1980,cities in the seven-county metro area tapped surtace water more than
groundwater,by nearly 20 percent.That trend sharply reversed in the decade leading to
1990,and now groundwater accounts for 75 percent of all water used.Of the 4.7 triilion
gallons of water flowing into the metro area from the Mississippi,Minnesota and St.Croix
rivers,only 2 percent is diverted for municipal use in Minneapolis and St. Paul,Rummel said.
Drawing water from the St.Croix is considered impractical because of the high cost of
pumping it uphill and because the river is federally protected under the U.S.Wild and Scenic
Rivers Act,Rummel and Fischer said.
"The question is,can we rebalance our water resources that have relied so heavily on
groundwater?"Rummel asked the audience of about 75 people.Minnesota is the only state
where the rate of water use has increased faster than the rate of population,she said.
Fischer,vice chairman of the House Environment and Natural Resources Policy Committee,
said that pesticides and leaking garbage landfills contaminated Minnesota's abundant
watervvays over the years and that high nitrate levels from fertilizers are being found in wells.
Seeking new methods
"We've done a lot of things where we haven't been very responsible with our water
resources,"he said.Despite the notable problems,he said,the trend of depletion and
contamination can beYeversed if cities and counties"leam to think about water in a whole
new way."
Under sirong study in the metro area are conservalion and water reuse,Fischer said,
elevating the importance of sur(ace water.Public offcials should think of aquifers as
underground reservoirs and conserve them as much as possible,he said.
Meanwhile,several regional sWdies are undenvay to fgure out new methods of using water.
Hugo,Bumsville,West St.Paul and Hastings are among those cities looking at water
sustainability.Two studies,which will determine how cities migM share water resources and
treatment plants,will be completetl this fall.Another one,to examine how groundwater and
surface water interacl,will be fnished in late 2016.
Projects already underway inGude a planned experiment at the new Saints ballpark in St.
Paul that will use stortnwater for irrigation.In Woodbury,a joint city-Washington County effort
will provide stormwater for irrigation at a golf course instead of draining it into Colby Lake,
where phosphorous contamination already is high.In Hugo,millions of gallons o/groundwater
will be saved each year in a similar effort to reuse stormwater for irrigation.
Reusing water on land also has a positive beneft of reducing contaminated water flowing into
streams and lakes,Rummel said.One of the largest sources ot water polWtion comes trom
agnculture,she said,and more farmers are wanting to join in water conservation efforts.
"They're beginning to see that if they don't take care of the water,ihey won't be able to stay in
business here,"she said.
Craig Leiser,a district manager in the Browns Creek Watershed District,said that Washington
County has a good groundwater plan and that people are working logether to(nd soWtions.
"All is not lost,but you have to keep listening and keep your eyes open,"he told ihe audience
at the forum,sponsored by ihe Isaak Walton League,River Valley Action and the White Bear
Lake Area League of Women Voters.
Kevin Giles•651-925-5037
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