EPA.92c.ccl4.df {EnvStats}

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

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

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.80.