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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