Description

Benzene concentrations (ppb) at six background wells (six monthly samples for each well). Nondetects reported as <2.

Usage

Format

A data frame with 36 observations on the following 5 variables.

Benzene.orig

a character vector of original benzene concentrations (ppb)

Benzene

a numeric vector of benzene concentrations with <2 coded as 2

Censored

a logical vector indicating which observations are censored

Month

a factor indicating the month of collection

Well

a factor indicating the well number

Source

USEPA. (1992c). Statistical Analysis of Ground-Water Monitoring Data at RCRA Facilities: Addendum to Interim Final Guidance. Office of Solid Waste, U.S. Environmental Protection Agency, Washington, D.C. p.36.