Beryllium Concentrations from Example 21-5 of 2009 USEPA Guidance Document
Beryllium concentrations (ppb) at one well (four years of quarterly measures).
data(EPA.09.Ex.21.5.beryllium.df)
A data frame with 16 observations on the following 3 variables.
Yeara factor indicating the year of collection
Quartera factor indicating the quarter of collection
Beryllium.ppba numeric vector of beryllium concentrations (ppb)
USEPA. (2009). Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities, Unified Guidance. EPA 530/R-09-007, March 2009. Office of Resource Conservation and Recovery Program Implementation and Information Division. U.S. Environmental Protection Agency, Washington, D.C. p.21-18.
USEPA. (2010). Errata Sheet - March 2009 Unified Guidance. EPA 530/R-09-007a, August 9, 2010. Office of Resource Conservation and Recovery, Program Information and Implementation Division. U.S. Environmental Protection Agency, Washington, D.C.
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