Format
A data frame with 8 observations on the following 4 variables.
Month
- a numeric vector indicating the month of collection
Benzene.ppb.orig
- a character vector of original benzene concentrations (ppb)
Benzene.ppb
- a numeric vector of benzene concentrations (ppb) with nondetects set to their detection limit
Censored
- a logical vector indicating which observations are censored
Source
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.21-7. 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.