Filters: Types: OGC WMS Layer (X) > Categories: Data Release - Revised (X)
Folders: ROOT > ScienceBase Catalog > National Water-Quality Assessment Project ( Show direct descendants )
1 result (63ms)
Location
Folder
ROOT _ScienceBase Catalog __National Water-Quality Assessment Project Filters
Date Range
Types Contacts Categories Tag Types Tag Schemes |
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 summaries of data comparisons used to assess the depth of groundwater used for drinking-water supplies in the United States. Well construction data sources are documented in Table1_DataSources.xlsx. Data comparisons using the Mann-Whitney test to assess similarity between hydrogeologic settings were used to justify combining data where they were sparse (compare_neighbors_all_domestic.txt and compare_neighbors_all_public.txt). Water-supply-well depth varies geographically by water use and the type of well, which illustrates...
Categories: Data,
Data Release - Revised;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Cycle 3,
Hydrology,
NAWQA,
USGS Science Data Catalog (SDC),
United States,
|
![]() |