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EnvStats (version 2.1.1)

EPA.09.Ex.11.1.arsenic.df: Arsenic Concentrations from Example 11-1 of 2009 USEPA Guidance Document

Description

Arsenic concentrations (ppb) at six wells (four observations per well).

Usage

EPA.09.Ex.11.1.arsenic.df

Arguments

Format

A data frame with 24 observations on the following 3 variables.
Arsenic.ppb
a numeric vector of arsenic concentrations (ppb)
Month
a factor indicating the month of collection
Well
a factor indicating the well number

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.11-3. 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.