diff --git a/.github/workflows/urlcheck.yml b/.github/workflows/urlcheck.yml
index 5614ef4b..6b9cf398 100644
--- a/.github/workflows/urlcheck.yml
+++ b/.github/workflows/urlcheck.yml
@@ -28,12 +28,16 @@ jobs:
     - name: Run URL check
       run: |
         Rscript -e "
-        urls <- c('https://github.com/USEPA/EPATADA/')
+        files <- list.files(pattern = '\\.R$', recursive = TRUE)
+        urls <- unlist(lapply(files, function(file) {
+          lines <- readLines(file)
+          urls <- grep('http[s]?://', lines, value = TRUE)
+          gsub('.*(http[s]?://[^ ]+).*', '\\1', urls)
+        }))
         for (url in urls) {
           status <- system(paste('curl -o /dev/null -s -w \"%{http_code}\"', url), intern = TRUE)
           if (status != '200') {
             stop(paste('URL check failed for', url))
           }
         }
-        "
-
+        "
\ No newline at end of file
diff --git a/R/DataDiscoveryRetrieval.R b/R/DataDiscoveryRetrieval.R
index 1d3967ce..ee1cff18 100644
--- a/R/DataDiscoveryRetrieval.R
+++ b/R/DataDiscoveryRetrieval.R
@@ -38,7 +38,7 @@
 #' @param countycode FIPS county name. Note that a state code must also be supplied (e.g. statecode = "AL", countycode = "Chilton"). See https://www.waterqualitydata.us/Codes/countycode for options.
 #' @param huc A numeric code denoting a hydrologic unit. Example: "04030202". Different size hucs can be entered. See https://epa.maps.arcgis.com/home/item.html?id=796992f4588c401fabec7446ecc7a5a3 for a map with HUCS. Click on a HUC to find the associated code.
 #' @param siteid Unique monitoring location identifier.
-#' @param siteType Type of waterbody. See https://www.waterqualitydata.us/Codes/WRONGURL for options.
+#' @param siteType Type of waterbody. See https://www.waterqualitydata.us/Codes/sitetype for options.
 #' @param characteristicName Name of parameter. See https://www.waterqualitydata.us/Codes/characteristicName for options.
 #' @param characteristicType Groups of environmental measurements/parameters. See https://www.waterqualitydata.us/Codes/characteristicType for options.
 #' @param sampleMedia Sampling substrate such as water, air, or sediment. See https://www.waterqualitydata.us/Codes/sampleMedia for options.
@@ -440,7 +440,7 @@ TADA_ReadWQPWebServices <- function(webservice) {
 #' @param huc A numeric code denoting a hydrologic unit. Example: "04030202". Different size hucs can be entered. See https://epa.maps.arcgis.com/home/item.html?id=796992f4588c401fabec7446ecc7a5a3 for a map with HUCS. Click on a HUC to find the associated code.
 #' @param siteid Unique monitoring location identifier.
 #' @param siteType Type of waterbody. See https://www.waterqualitydata.us/Codes/sitetype for options.
-#' @param characteristicName Name of parameter. See https://www.waterqualitydata.us/Codes/characteristicName for options.
+#' @param characteristicName Name of parameter. See https://www.waterqualitydata.us/Codes/WRONGURL for options.
 #' @param characteristicType Groups of environmental measurements/parameters. See https://www.waterqualitydata.us/Codes/characteristicType for options.
 #' @param sampleMedia Sampling substrate such as water, air, or sediment. See https://www.waterqualitydata.us/Codes/sampleMedia for options.
 #' @param organization A string of letters and/or numbers (some additional characters also possible) used to signify an organization with data in the Water Quality Portal. See https://www.waterqualitydata.us/Codes/organization for options.