Tetrachloroethylene Concentrations from Example 16-5 of 2009 USEPA Guidance Document

Tetrachloroethylene (PCE) concentrations (ppb) at one background well and one compliance well.

EPA.09.Ex.16.5.PCE.df

Format

A data frame with 14 observations on the following 4 variables.

Well.type

a factor with levels Background Compliance

PCE.Orig.ppb

a character vector of original PCE concentrations (ppb)

PCE.ppb

a numeric vector of PCE concentrations (ppb) with nondetects set to their detection limit

Censored

a logical vector indicating which observations are censored

Source

USEPA. (2009). Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities, Unified Guidance. EPA 530/R-09-007, March 2009. Office of Resource Conservation and Recovery Program Implementation and Information Division. U.S. Environmental Protection Agency, Washington, D.C. p.16-22.

USEPA. (2010). Errata Sheet - March 2009 Unified Guidance. EPA 530/R-09-007a, August 9, 2010. Office of Resource Conservation and Recovery, Program Information and Implementation Division. U.S. Environmental Protection Agency, Washington, D.C.