EPA.92c.copper2.df: Copper Concentrations from 1992 USEPA Guidance Document

EPA.92c.copper2.dfR Documentation

Copper Concentrations from 1992 USEPA Guidance Document

Description

Copper concentrations (ppb) at three background and two compliance wells (eight monthly samples for each well; first four missing at compliance wells). Nondetects reported as <5.

Usage

EPA.92c.copper2.df

Format

A data frame with 40 observations on the following 6 variables.

Copper.orig

a character vector of original copper concentrations (ppb)

Copper

a numeric vector of copper concentrations with <5 coded as 5

Censored

a logical vector indicating which observations are censored

Month

a factor indicating the month of collection

Well

a factor indicating the well number

Well.type

a factor indicating the well type (background vs. compliance)

Source

USEPA. (1992c). Statistical Analysis of Ground-Water Monitoring Data at RCRA Facilities: Addendum to Interim Final Guidance. Office of Solid Waste, U.S. Environmental Protection Agency, Washington, D.C. p.55.


EnvStats documentation built on Sept. 11, 2024, 6:03 p.m.