diff --git a/R/readWQPqw.r b/R/readWQPqw.r
index b5897d44c0997bd97f84d9d6efa571bf0128a884..75bbf6f559f092b4ca846c932971184d86801362 100644
--- a/R/readWQPqw.r
+++ b/R/readWQPqw.r
@@ -28,6 +28,7 @@ readWQPqw <- function(siteNumber,parameterCd,startDate="",endDate=""){
 
   url <- constructWQPURL(siteNumber,parameterCd,startDate,endDate)
   retVal <- importWQP(url,TRUE)
+  attr(retVal, "url") <- url
   return(retVal)
   
 }