Format
A data frame with 32 observations on the following 5 variables.
Year
- a factor indicating the year of collection
Quarter
- a factor indicating the quarter of collection
Period
- a factor indicating the period (background vs. compliance)
Well
- a factor indicating the well number
VC.ppb
- a numeric vector of VC concentrations (ppb)
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.22-6. 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.