Sulfate Concentrations from Example 19-1 of 2009 USEPA Guidance Document
Sulfate concentrations (mg/L) at four background wells.
EPA.09.Ex.19.1.sulfate.df
A data frame with 25 observations on the following 7 variables.
Wella factor indicating the well number
Montha numeric vector indicating the month of collection
Daya numeric vector indicating the day of the month of collection
Yeara numeric vector indicating the year of collection
Datea Date object indicating the date of collection
Sulfate.mg.per.la numeric vector of sulfate concentrations (mg/L)
log.Sulfate.mg.per.la numeric vector of log-transformed sulfate concentrations (mg/L)
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.19-17.
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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