Aldicarb concentrations (ppb) at three compliance wells (four monthly samples at each well).
A data frame with 12 observations on the following 3 variables.
Aldicarb concentrations (ppb)
a factor indicating the month of collection
a factor indicating the well number
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.6-4.
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