EnvStats (version 2.4.0)

EPA.09.Ex.14.1.manganese.df: Manganese Concentrations from Example 14-1 of 2009 USEPA Guidance Document

Description

Manganese concentrations (ppm) at four background wells (eight quarterly measures at each well).

Usage

EPA.09.Ex.14.1.manganese.df

Arguments

Format

A data frame with 32 observations on the following 3 variables.

Quarter

a numeric vector indicating the quarter the sample was taken

Well

a factor indicating the well number

Manganese.ppm

a numeric vector of manganese concentrations (ppm)