Found 13 datasets matching "Glacial Principal Aquifer".
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Residence time distribution (RTD) is a critically important characteristic of groundwater flow systems; however, it cannot be measured directly. RTD can be inferred from tracer data with...
Search relevance: 98.04 | Views last month: 2 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 75.50 | Views last month: 0 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 74.90 | Views last month: 0 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 69.21 | Views last month: 4 -
The data contained in this data release support USGS Scientific Investigations Report 2020-5023, "Distribution of selected hydrogeologic characteristics of the upper glacial and Magothy aquifers,...
Search relevance: 66.36 | Views last month: 0 -
The U.S. Geological Survey (USGS) previously identified 62 Principal Aquifers (PAs) in the U.S., with 57 located in the conterminous states. The USGS characterized areas outside of PAs as “other...
Search relevance: 61.38 | Views last month: 0 -
This data release includes grids representing the depth and thickness of drinking-water withdrawal zones, polygons of hydrogeologic settings, an inventory of sources of well construction data, and...
Search relevance: 57.20 | Views last month: 0 -
A three-dimensional groundwater flow model was developed to characterize groundwater resources the uppermost principal aquifers in the Williston structural basin in parts of Montana, North...
Search relevance: 56.88 | Views last month: 0 -
A three-dimensional groundwater flow model was developed to characterize groundwater resources of the uppermost principal aquifers in the Williston structural basin in parts of Montana, North...
Search relevance: 53.48 | Views last month: 0 -
In 2013 to 2015, 833 public supply wells in 15 Principal aquifers in the United States (U.S.) were sampled to identify which aquifers contained high methane concentrations (>1 mg/L) and determine...
Search relevance: 48.27 | Views last month: 0 -
A seamless map of the major groundwater areas used by community public supply wells in the United States was needed in order to describe and compute the number of equivalent people using public...
Search relevance: 46.56 | Views last month: 1 -
This data release documents nine Microsoft Excel tables that contain data for understanding groundwater ages in the Glacial aquifer system. Results for the four sample networks (PAS, principal...
Search relevance: 44.19 | Views last month: 0 -
This dataset contains estimates of water withdrawals from 66 principal aquifers and "other" non-principal aquifers during 2015 for various categories of use in each county or county equivalent in...
Search relevance: 30.98 | Views last month: 0
