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EPA.92c.ccl4.df: Carbon Tetrachloride Concentrations from 1992 USEPA Guidance Document

Description

Carbon tetrachloride (CCL4) concentrations (ppb) at five wells (four monthly samples at each well).

Usage

EPA.92c.ccl4.df

Arguments

Format

A data frame with 20 observations on the following 3 variables.

CCL4

a numeric vector of carbon tetrachloride concentrations (ppb)

Month

a factor indicating the month of collection

Well

a factor indicating the well number