Fourth grade students from around the area learned all about groundwater last Friday, when the South Platte Natural Recourse District (SPNRD) held its annual Groundwater Festival in Sidney.The Groundwater festival is an event the SPNRD holds every year, Administrative Manager, Don Davis, said. This year marks the 27th annual event."The idea is to educate youth on the effects of groundwater," Davis said. "It's also a chance for us to begin outreach early and highlight projects that we have for youth."Groundwater is the water found underground in the cracks and spaces in soil, sand and rock....