Latest Board Action

UNL Presents Vadose Zone Nitrate Findings  PDF (GRAND ISLAND, NE) – Dr. Dan Snow, director of Water Sciences Laboratory, UNL, gave a progress report on the Central Platte Natural Resources District (CPNRD) Vadose Zone Nitrate Study at CPNRD’s board of directors meeting on Thursday. Core samples were collected for vadose zone nitrate including some areas that were sampled in the 1990s. The report showed locations of the first eight core samples collected with comparison of nitrate profiles to previous time periods, and estimation of nitrate transport rates at each location. As part of this three-year vadose zone study, approximately 27 sites collected across the CPNRD between 1990 and 1996 have been digitized and are being used to compare recent profiles at these sites to determine how fast nitrate is moving and whether changing land use management has resulted in reduced loading of nitrate in the vadose zone. These sites are all being used for agricultural production. The first eight sample results indicate that lowering nitrogen fertilizer amounts applied, reducing irrigation water applied, and changing land use practices at the surface may be lowering the nitrate concentrations in the vadose zone. OTHER ACTION/AGENDA ITEMS -Bid Letting The board awarded the Phase II construction bid for the Upper Prairie/Silver/ Moores Creek Flood Control Detention Cell Project in Hall County to Hooker Brothers Construction Company of Grand Island in the amount of $2,246,959.00. Nine bids were received to excavate 1,036,300 million cubic yards of dirt for the detention cell. Hooker Brothers had the low bid, which was $1,175,041 below the engineer’s estimate. Construction will begin in mid-July and be completed by May...