This data is a feature class of PLSS sections with various aquifer properties in the attributes. The attributes in this data were created by the Kansas Geological Survey on May 30, 2024. Water levels originate from WIZARD and have been processed to represent winter conditions. Attributes include:

depth_to_water: Depth to water in the High Plains aquifer, represented at the PLSS section level.

• Can be applied to PREDEV_DTW_UPDATED (depth to water during predevelopment, which is ~late 1940s) and DTW_2022-2024 (average over the last three years)

• DTW_2022-2024: Computed by subtracting a raster dataset of the average 2022 to 2024 water table elevation (interpolated from measured values at wells) from a digital elevation model of the land surface (in this case, the National Elevation Data set).

• PREDEV_DTW_UPDATED : Computed by subtracting a raster dataset of the predevelopment water table elevation (interpolated from historic measured values in geologic bulletins) from a digital elevation model of the land surface (in this case, the National Elevation Data set).

• Example map.

water_table_elevation_2022_2024: Average 2022 to 2024 water table elevations (WTE_2022_2024) in the High Plains aquifer, represented at the PLSS section level.

• Example map.

saturated_thickness: Thickness of the High Plains aquifer, represented at the PLSS section level

• Computed by subtracted the estimated elevation of the underlying bedrock of the High Plains aquifer (taken from KGS Technical Series report no. 20) from the water table elevations.

• Can be applied to PREDEV_SATTHICK_UPDATE (thickness in predevelopment) and SATTHICK_2022_2024 (average thickness from 2022 to 2024)

• Example map.

chng_predev_2022_2024: Change in feet in the High Plains aquifer thickness from predevelopment to average 2022 to 2024 (CHNG_PREDEV_20222024_ACT).

• Example map

chng_predev_2022_2024_percent: Percent change in the High Plains aquifer thickness from predevelopment to average 2022 to 2024 (CHNG_PREDEV_20222024_PCT).

• Example map.

chng_10_20_years: 20 year water-level change, from all wells (not just the High Plains aquifer)

• Change in feet from the average 2002-2004 to average 2022-2024 water tables (chng_3yr_2003_2023)

• Example map.

• 10 year water-level change, from all wells (not just the High Plains aquifer)

• Change in feet from the average 2012-2014 to average 2022-2024 water tables (chng_3yr_2013_2023)

• Example map.

chng_5_years: 5 year water-level change, from all wells (not just the High Plains aquifer)

• Change in feet from the average 2017-2019 to average 2022-2024 water tables (chng_3yr_2018_2023)

• Example map.