EPA.09.Table.9.1.TCE.df: Trichloroethene concentrations in Table 9.1 of 2009 USEPA...

Description Usage Format Source

Description

Time series of trichloroethene (TCE) concentrations (mg/L) taken at 2 separate wells. Some observations are annotated with a data qualifier of U (nondetect) or J (estimated detected concentration).

Usage

1

Format

A data frame with 30 observations on the following 5 variables.

Date.Collected

a factor indicating the date of collection

Date

a Date object indicating the date of collection

Well

a factor indicating the well number

TCE.mg.per.L

a numeric vector indicating the TCE concnetrations (mg/L)

Data.Qualifier

a factor indicating the data qualifier

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.9-3.

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.



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