Carbon Tetrachloride Concentrations from Example 12-1 of 2009 USEPA Guidance Document
Carbon tetrachloride (CCL4) concentrations (ppb) at five background wells (four measures at each well).
EPA.09.Ex.12.1.ccl4.df
A data frame with 20 observations on the following 2 variables.
Wella factor indicating the well number
CCL4.ppba numeric vector of CCL4 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.12-3.
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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