Description

Nickel concentrations (ppb) at four monitoring wells (five monthly samples for each well).

Usage

Format

A data frame with 20 observations on the following 3 variables.

Nickel

a numeric vector of nickel concentrations (ppb)

Month

a factor indicating the month of collection

Well

a factor indicating the well number

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.7.