diff --git a/utils/lib_utils.sh b/utils/lib_utils.sh
index 52fad3f..6667798 100644
--- a/utils/lib_utils.sh
+++ b/utils/lib_utils.sh
@@ -60,10 +60,18 @@ function make_working_dir {
 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  clean_working_dir
 #   DESCRIPTION:  Remove local temporary working directory 
-#    PARAMETERS:  
+#    PARAMETERS: WORK_DIR -- Temporay directory to be delted
 #       RETURNS:  
 #-------------------------------------------------------------------------------
-function clean_working_dir { echo; }
+function clean_working_dir {
+	if [[ -d $1  ]] && expr $1 : '.*/tmp.*' ; then
+		rm -rf $1
+		echo "Deleted temp working directory $1" 
+	else
+		echo "Not a temporary directory: $1"
+	fi
+	
+}
 
 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  download_hpr_sql