diff --git a/DESCRIPTION b/DESCRIPTION
index 23d82406..72926b7d 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Package: dataRetrieval
 Type: Package
 Title: Retrieval Functions for USGS and EPA Hydrologic and Water Quality Data
-Version: 2.2.2
-Date: 2015-06-05
+Version: 2.2.3
+Date: 2015-06-29
 Authors@R: c( person("Robert", "Hirsch", role = c("aut"),
     email = "rhirsch@usgs.gov"),
     person("Laura", "DeCicco", role = c("aut","cre"),
@@ -27,7 +27,9 @@ Imports:
     RCurl,
     reshape2,
     lubridate,
-    plyr
+    plyr,
+    stats,
+    utils
 Suggests:
     xtable,
     knitr,
diff --git a/NAMESPACE b/NAMESPACE
index 4a0b9c2f..75ba4924 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -33,6 +33,8 @@ export(zeroPad)
 import(RCurl)
 import(XML)
 import(lubridate)
+import(stats)
+import(utils)
 importFrom(plyr,rbind.fill.matrix)
 importFrom(reshape2,dcast)
 importFrom(reshape2,melt)
diff --git a/R/constructNWISURL.r b/R/constructNWISURL.r
index c5326c8d..0c5eeb1d 100644
--- a/R/constructNWISURL.r
+++ b/R/constructNWISURL.r
@@ -22,6 +22,7 @@
 #' @return url string
 #' @export
 #' @import RCurl
+#' @import utils
 #' @examples
 #' siteNumber <- '01594440'
 #' startDate <- '1985-01-01'
diff --git a/R/importRDB1.r b/R/importRDB1.r
index 5b24c6b5..57c76d7d 100644
--- a/R/importRDB1.r
+++ b/R/importRDB1.r
@@ -40,6 +40,8 @@
 #' }
 #' @export
 #' @import RCurl
+#' @import utils
+#' @import stats
 #' @examples
 #' siteNumber <- "02177000"
 #' startDate <- "2012-09-01"
diff --git a/R/importWQP.R b/R/importWQP.R
index 4ccf266a..ca53853b 100644
--- a/R/importWQP.R
+++ b/R/importWQP.R
@@ -14,6 +14,8 @@
 #' @seealso \code{\link{readWQPdata}}, \code{\link{readWQPqw}}, \code{\link{whatWQPsites}}
 #' @import RCurl
 #' @import lubridate
+#' @import utils
+#' @import stats
 #' @examples
 #' # These examples require an internet connection to run
 #' 
diff --git a/R/importWaterML1.r b/R/importWaterML1.r
index 0931e4dc..a7db0170 100644
--- a/R/importWaterML1.r
+++ b/R/importWaterML1.r
@@ -40,6 +40,8 @@
 #' @export
 #' @import XML
 #' @import RCurl
+#' @import utils
+#' @import stats
 #' @importFrom  reshape2 melt
 #' @importFrom reshape2 dcast
 #' @examples
diff --git a/R/readNWISdata.r b/R/readNWISdata.r
index 1c7a8672..43fa1db8 100644
--- a/R/readNWISdata.r
+++ b/R/readNWISdata.r
@@ -8,7 +8,8 @@
 #' (for groundwater levels), "site" (for site service), and "qw" (water-quality). Note: "qw" calls go to: 
 #' \url{http://nwis.waterdata.usgs.gov/usa/nwis/qwdata} for data requests, and use different call requests schemes. 
 #' @param \dots see \url{http://waterservices.usgs.gov/rest/Site-Service.html#Service} for a complete list of options
-#' @keywords data import NWIS web service
+#' @import utils
+#' @import stats
 #' @return A data frame with the following columns:
 #' \tabular{lll}{
 #' Name \tab Type \tab Description \cr
diff --git a/R/whatNWISsites.R b/R/whatNWISsites.R
index b271d212..49e34e84 100644
--- a/R/whatNWISsites.R
+++ b/R/whatNWISsites.R
@@ -5,7 +5,7 @@
 #' Mapper format is used
 #'
 #' @param \dots see \url{http://waterservices.usgs.gov/rest/Site-Service.html#Service} for a complete list of options
-#' @keywords data import NWIS web service
+#' @import utils
 #' @return A data frame with at least the following columns:
 #' \tabular{lll}{
 #' Name \tab Type \tab Description \cr
diff --git a/R/whatWQPsites.R b/R/whatWQPsites.R
index 7c7fbd07..5109d939 100644
--- a/R/whatWQPsites.R
+++ b/R/whatWQPsites.R
@@ -48,6 +48,7 @@
 #' * element is only in NWIS
 #' 
 #' @export
+#' @import utils
 #' @examples
 #' \dontrun{
 #' site1 <- whatWQPsites(siteid="USGS-01594440")
diff --git a/man/readNWISdata.Rd b/man/readNWISdata.Rd
index 0b848a18..14b711fc 100644
--- a/man/readNWISdata.Rd
+++ b/man/readNWISdata.Rd
@@ -87,9 +87,4 @@ temp <- readNWISdata(bBox=c(-83,36.5,-81,38.5), parameterCd="00010", service="si
 \seealso{
 \code{\link{renameNWISColumns}},  \code{\link{importWaterML1}}, \code{\link{importRDB1}}
 }
-\keyword{NWIS}
-\keyword{data}
-\keyword{import}
-\keyword{service}
-\keyword{web}
 
diff --git a/man/whatNWISsites.Rd b/man/whatNWISsites.Rd
index 84560490..f5f02f4f 100644
--- a/man/whatNWISsites.Rd
+++ b/man/whatNWISsites.Rd
@@ -39,9 +39,4 @@ Mapper format is used
 siteListPhos <- whatNWISsites(stateCd="OH",parameterCd="00665")
 }
 }
-\keyword{NWIS}
-\keyword{data}
-\keyword{import}
-\keyword{service}
-\keyword{web}
 
diff --git a/vignettes/dataRetrieval.Rnw b/vignettes/dataRetrieval.Rnw
index bcc1d859..02b20a62 100644
--- a/vignettes/dataRetrieval.Rnw
+++ b/vignettes/dataRetrieval.Rnw
@@ -2,7 +2,7 @@
 %\VignetteEngine{knitr::knitr}
 %\VignetteDepends{}
 %\VignetteSuggests{xtable, testthat}
-%\VignetteImports{XML, RCurl, reshape2,lubridate,plyr}
+%\VignetteImports{XML, RCurl, reshape2,lubridate,plyr,utils,stats}
 %\VignettePackage{dataRetrieval}
 
 \documentclass[a4paper,11pt]{article}