Skip to main content

Data from Decadal Change in Groundwater Quality Web Site, 1988-2014, Version 2.0

Dates

Publication Date
Start Date
1988-01-01
End Date
2014-09-24

Citation

Lindsey, B.D. and Johnson, T.D., 2018, Data from Decadal Change in Groundwater Quality Web Site, 1988-2014, Version 2.0: U.S. Geological Survey data release, https://doi.org/10.5066/F7N878ZS.

Summary

Evaluating Decadal Changes in Groundwater Quality: Groundwater quality data were collected from 5,000 wells between 1988-2001 (first sampling event) by the U.S. Geological Survey’s National Water-Quality Assessment Project. Samples are collected in groups of 20-30 wells with similar characteristics called networks. About 1,500 of these wells in 67 networks were sampled about 10 years later between 2002-2012 (second sampling event) to evaluate decadal changes in groundwater quality. Between 2012 and 2014 (third sampling event), a subset of these networks has been sampled again, allowing additional results to be displayed on the web page: Decadal changes in groundwater quality. Changes to this web page are referred to herein as Version [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

Decadal_Change_in_Groundwater_Quality_V1_Organics.zip
“Organics Data Tables and Metadata from Version 1”
151.09 KB application/zip
Decadal_Change_in_Groundwater_Quality_V2_Data_Tables.zip
“Data Tables and Metadata for Version 2”
237.69 KB application/zip
Decadal_Change_V2_General_Metadata.xml
Original FGDC Metadata

View
53.61 KB application/fgdc+xml
Metadata.zip 52.44 KB application/zip

Purpose

Data were collected as a part of the NAWQA Land use studies or Major aquifer studies. Initially data were collected to characterize the quality of shallow and medium depths of groundwater in the nation. Subsequent samples were collected to evaluate changes in concentrations over a decadal time span.

Map

Spatial Services

ScienceBase WMS

Communities

  • National Water-Quality Assessment Project
  • USGS Data Release Products

Associated Items

Tags

Provenance

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F7N878ZS

Item Actions

View Item as ...

Save Item as ...

View Item...