Monthly unadjusted and adjusted analyte concentrations over a 3-year period. Adjusted concentrations are computed by subtracting the monthly mean and adding the overall mean.
A data frame with 36 observations on the following 4 variables.
a factor indicating the month of collection
a numeric vector indicating the year of collection
a numeric vector of unadjusted concentrations
a numeric vector adjusted concentrations
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.14-32.
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.
Want to suggest features or report bugs for rdrr.io? Use the GitHub issue tracker.