A zipped folder, NDakGWtool.zip, contains the following: • Rscripts—model_run.R, analyses.Rmd; • R objects—obs_wl, test_log, lse; • files—wlinputalldata.R, wlmodelCell.R, model_data. Rdata, gisdata.R, sites.txt, water_levels.txt, USGS_ID_ black.png, readme.txt; and • folders—GIS, OUTPUT.