EPA.09.Ex.15.1.manganese.df {EnvStats}

Manganese Concentrations from Example 15-1 of 2009 USEPA Guidance Document

Description

Manganese concentrations (ppb) at five background wells (five measures at each well).

Usage

EPA.09.Ex.15.1.manganese.df

Format

A data frame with 25 observations on the following 5 variables.

Sample

a numeric vector indicating the sample number (1-5)

Well

a factor indicating the well number

Manganese.Orig.ppb

a character vector of the original manganese concentrations (ppb)

Manganese.ppb

a numeric vector of manganese concentrations with non-detects coded to their detecion 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.15-10.

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.