EPA.92c.arsenic1.df.RdArsenic concentrations (ppm) at six monitoring wells (four monthly samples for each well).
EPA.92c.arsenic1.dfA data frame with 24 observations on the following 3 variables.
ArsenicArsenic concentrations (ppm)
Montha factor indicating the month of collection
Wella factor indicating the well number
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.21.