diff --git a/varennes_single_processes/remove_nrcan_duplicates.py b/varennes_single_processes/remove_nrcan_duplicates.py
index 4fa154a..a3bf0bb 100644
--- a/varennes_single_processes/remove_nrcan_duplicates.py
+++ b/varennes_single_processes/remove_nrcan_duplicates.py
@@ -1,63 +1,30 @@
 """
 handle_varennes_ds_workflow module
-The workflow of cleaning and updating the buildings around
-Varennes Public Library dataset.
+NRCan datalayer has two polygons for each buildings' footprint.
+The below workflow has been designed to remove the extra polygons.
 Project Developer: Alireza Adli alireza.adli@concordia.ca
 """
-
+# You need to clone mtl_gis_oo project and
+# add it as a dependency of this new project
 from scrub_layer_class import *
 
+# Change the paths by the location of your QGIS installation and datalayers
 qgis_path = 'C:/Program Files/QGIS 3.34.1/apps/qgis'
 
-nrcan_varennes = 'C:/Users/a_adli/PycharmProjects/varennes_gis_oo/' \
-                 'data/initial_data/endeavor/nrcan_centroid_main/' \
-                 'nrcan_centroid_main.shp'
+varennes_nrcan_extra_polygons = \
+  'C:/Users/a_adli/PycharmProjects/varennes_gis_oo/' \
+  'data/initial_data/endeavor/nrcan_centroid_main/nrcan_centroid_main.shp'
 
-duplcated = 'C:/Users/a_adli/PycharmProjects/varennes_gis_oo/' \
-            'data/initial_data/endeavor/nrcan_centroids_1/' \
-            'auto_building_2.shp'
+# first we duplicate the layer to preserve the main data layer.
+duplicated = \
+  'C:/Users/a_adli/PycharmProjects/varennes_gis_oo/' \
+  'data/initial_data/endeavor/nrcan_centroids_1/auto_building_2.shp'
 
 # First, the layer will be duplicated as some records are going to be removed
 
-varennes_nrcan = ScrubLayer(qgis_path, nrcan_varennes, 'NRCan Varennes')
+varennes_nrcan = ScrubLayer(
+  qgis_path, varennes_nrcan_extra_polygons, 'NRCan Varennes')
 
 varennes_nrcan_duplicate = varennes_nrcan.duplicate_layer(
-  duplcated, 'NRCan duplicated')
-
-# Deleting duplicated layer unnecessary fields (will be added later)
-varennes_nrcan_duplicate.delete_field('acqtech')
-varennes_nrcan_duplicate.delete_field('acqtech_en')
-varennes_nrcan_duplicate.delete_field('acqtech_fr')
-varennes_nrcan_duplicate.delete_field('provider')
-varennes_nrcan_duplicate.delete_field('provider_e')
-varennes_nrcan_duplicate.delete_field('provider_f')
-varennes_nrcan_duplicate.delete_field('datemin')
-varennes_nrcan_duplicate.delete_field('datemax')
-varennes_nrcan_duplicate.delete_field('haccmin')
-varennes_nrcan_duplicate.delete_field('haccmax')
-varennes_nrcan_duplicate.delete_field('vaccmin')
-varennes_nrcan_duplicate.delete_field('vaccmax')
-varennes_nrcan_duplicate.delete_field('heightmin')
-varennes_nrcan_duplicate.delete_field('heightmax')
-varennes_nrcan_duplicate.delete_field('elevmin')
-varennes_nrcan_duplicate.delete_field('elevmax')
-varennes_nrcan_duplicate.delete_field('bldgarea')
-varennes_nrcan_duplicate.delete_field('comment')
-
-tolerance = 5
-varennes_nrcan_features = varennes_nrcan.layer.getFeatures()
-varennes_nrcan_duplicate_features = \
-  varennes_nrcan_duplicate.layer.getFeatures()
-
-for feature in varennes_nrcan_features:
-  for next_feature in varennes_nrcan_duplicate_features:
-    if feature['feature_id'] == next_feature['feature_id']:
-      continue
-    if abs(feature['centroid_x'] - next_feature['centroid_x']) < tolerance\
-            or \
-            abs(
-              feature['centroid_y'] - next_feature['centroid_y']
-            ) < tolerance:
-      record_id = next_feature.id()
-      varennes_nrcan_duplicate.delete_record_by_index(record_id)
+  duplicated, 'NRCan duplicated')