wells: wells

In jfieberg/Data4Ecologists: Data Assoicated with Statistics for Ecologists

wells

Description

Data from a water quality study of land on Long Island, New York (Eckhardt et al., 1989).

Usage

wells

Format

A data frame with 20 rows and 6 variables:

y

integer number of wells where TCE was detected, out of n sampled wells in total

n

integer number of wells sampled

land.use

character land use type associated with the well locations

sewer

character whether or not sewers were used in the area around the wells

nitrate

double median concentration (mg/L) of nitrate at the n well sites

chloride

integer median concentration (mg/L) of chloride at the n well sites

Source

Data were from Piegorsch and Bailer (2005) and come from a water quality study (Eckhard et al. 1989). Eckhardt, D. A. Flipse, W. J., and Oaksford, E. T. 1989. Relation between land use and ground-quality in the upper glacial aquifer in Nassau and Suffolk Counties, Long Island. Water-Resources Investigations Report no. 86-4142. US Geological Survey, Syosset, NY.

Piegorsch, Walter W. and A. John Bailer. 2005. Analyzing Environmental Data. Wiley.

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