Log-transformed Lead Concentrations from 1989 USEPA Guidance Document

Log-transformed lead concentrations (\(\mu\)g/L) at two background and four compliance wells (four monthly samples for each well).

EPA.89b.loglead.df

Format

A data frame with 24 observations on the following 4 variables.

LogLead

Natural logarithm of lead concentrations (\(\mu\)g/L)

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. (1989b). Statistical Analysis of Ground-Water Monitoring Data at RCRA Facilities, Interim Final Guidance. EPA/530-SW-89-026. Office of Solid Waste, U.S. Environmental Protection Agency, Washington, D.C. p.5-11.