Cities and small towns across Minnesota are grappling with a combination of aging infrastructure and a growing need to purify water as it declines in quality.
Magaalooyinka iyo magaalooyinka yaryar ee ku yaal gobolka ayaa la qabsanaya isku-dhafka kaabayaasha gabowga iyo baahida sii kordheysa ee biyaha loo nadiifiyo maadaama ay hoos u dhacayso tayada.