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Cormier, S.M., 2017. Dataset for: A Field-based Model of the Relationship Between Extirpation of Salt-intolerant Benthic Invertebrates and Background Conductivity. USEPA Environmental Dataset Gateway.

Metadata Updated: March 15, 2021

Data sets and individual XCD results used to develop the field-based benchmarks are available at the U.S. EPA Environmental Dataset Gateway ( (Cormier, 2017). Data are contained in three zip files. The folder “” contains occurrences of benthic invertebrate genera in 24 state data sets. This paper uses only the data from West Virginia ecoregions 69 and 70. The folder “” contains environmental data sorted into 24 data sets. The folder “” contains the calculated XC95 values, probability of observation plots as generalized additive models, and the cumulative frequency distribution for benthic invertebrate genera from WV69 and 70 plus data sets used to develop other models not discussed in this paper.

A spreadsheet for calculating XC95 values and XCD05 is described in Cormier et al. (2018c). The tools, data sets, example calculations, and example outputs are available online at and Alternatively, calculation of XC95, GAM plots, XCD05 can be calculated using batch R-code. Similarly, the R-code and data sets are available on GitHub (

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Public: This dataset is intended for public access and use. License: See this page for license information.

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Metadata Created Date March 15, 2021
Metadata Updated Date March 15, 2021

Metadata Source

Harvested from EPA ScienceHub

Additional Metadata

Resource Type Dataset
Metadata Created Date March 15, 2021
Metadata Updated Date March 15, 2021
Publisher U.S. EPA Office of Research and Development (ORD)
Data Last Modified 2016-11-20
Public Access Level public
Bureau Code 020:00
Schema Version
Harvest Object Id fe961a33-74ad-4f9d-995e-3afa92f641d9
Harvest Source Id 04b59eaf-ae53-4066-93db-80f2ed0df446
Harvest Source Title EPA ScienceHub
Program Code 020:000
Publisher Hierarchy U.S. Government > U.S. Environmental Protection Agency > U.S. EPA Office of Research and Development (ORD)
Source Datajson Identifier True
Source Hash c8bc901ddebcb2e241c607423bf37ba0f43c484f
Source Schema Version 1.1

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