EPA.09.Ex.21.6.nitrate.df {EnvStats} | R Documentation |
Nitrate Concentrations from Example 21-6 of 2009 USEPA Guidance Document
Description
Nitrate concentrations (mg/L) at a well used for drinking water.
Usage
EPA.09.Ex.21.6.nitrate.df
Format
A data frame with 12 observations on the following 5 variables.
Sampling.Date
a character vector indicating the sampling date
Date
a Date object indicating the sampling date
Nitrate.mg.per.l.orig
a character vector of original nitrate concentrations (mg/L)
Nitrate.mg.per.l
a numeric vector of nitrate concentrations (mg/L) 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.21-22.
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.