The district-wide modeling effort started following the Pawnee River basin water accounting report by Balleau Groundwater Inc. ("BGW"). The District Board quickly realized that it needed a comprehensive, scientific tool to evaluate alternative groundwater management scenarios for the District area.
In 2008, the District contracted with BGW to construct a hydrogeologic model for the entire District plus the upstream drainage basins that generate the District supply. Over the following two years, the BGW worked with District staff and a Technical Advisory Committee to develop this hydrogeologic model of the regional aquifer system. The group had two primary tasks:
S.S. Papadopulos & Associates, Inc. ("SSPA") provided technical expertise throughout the model development and provided an independent peer review on behalf of Kansas Department of Agriculture - Division of Water Resources. SSPA had been involved in the development of various prior modeling efforts with the Kansas Geological Survey on the Middle Arkansas River Subbasin. Following model development, SSPA generated a peer review report for KDA-DWR.
In June 2010, BGW finalized the model report describing the model (BBGMDMOD) and its respective characteristics. Access to the model report, appendices and peer report can be found in the Model Access section.
In the years since development, the District, state agencies and private entities have used the BBGMDMOD to evaluate several management actions to the region including the Quivira NWR impairment investigation, Cities of Hays & Russell change applications, and many more.
In 2014, the District Board passed the following administrative policy regarding hydrologic reports generated by BBGMDMOD:
Should a request be received to produce a model run the following procedure shall be followed: