diff --git a/scripts/management/commands/fix_multi_taxa_groups_in_one_survey.py b/scripts/management/commands/fix_multi_taxa_groups_in_one_survey.py
new file mode 100644
index 000000000..72b72e6a7
--- /dev/null
+++ b/scripts/management/commands/fix_multi_taxa_groups_in_one_survey.py
@@ -0,0 +1,75 @@
+# for issue https://github.com/kartoza/django-bims/issues/3491
+from django.core.management import BaseCommand
+from django.db.models import signals, Count
+from bims.models import (
+    location_site_post_save_handler,
+    location_context_post_save_handler, LocationContextGroup,
+    LocationContextFilter, LocationContextFilterGroupOrder,
+    BiologicalCollectionRecord
+)
+
+
+class Command(BaseCommand):
+    # Update location sites to use
+    # legacy site codes if they have correct format
+
+    def handle(self, *args, **options):
+        # Query
+        records_with_multiple_module_groups = BiologicalCollectionRecord.objects.values(
+            'survey'
+        ).annotate(
+            module_group_count=Count('module_group', distinct=True)
+        ).filter(
+            module_group_count__gt=1
+        )
+
+        signals.post_save.disconnect(
+            location_site_post_save_handler
+        )
+        signals.post_save.disconnect(
+            location_context_post_save_handler,
+            sender=LocationContextGroup
+        )
+        signals.post_save.disconnect(
+            location_context_post_save_handler,
+            sender=LocationContextFilter
+        )
+        signals.post_save.disconnect(
+            location_context_post_save_handler,
+            sender=LocationContextFilterGroupOrder
+        )
+
+        index = 0
+
+        for record in records_with_multiple_module_groups:
+            bio_records = BiologicalCollectionRecord.objects.filter(
+                survey=record['survey']
+            )
+            survey = bio_records.first().survey
+            module_groups = list(bio_records.values_list(
+                'module_group', flat=True
+            ).distinct())
+            print('old survey : {}'.format(survey.id))
+            for module_group in module_groups[1:]:
+                survey.pk = None
+                survey.save()
+                bio_records.filter(
+                    module_group=module_group
+                ).update(survey=survey)
+                print('new survey : {}'.format(survey.id))
+
+        signals.post_save.connect(
+            location_site_post_save_handler
+        )
+        signals.post_save.connect(
+            location_context_post_save_handler,
+            sender=LocationContextGroup
+        )
+        signals.post_save.connect(
+            location_context_post_save_handler,
+            sender=LocationContextFilter
+        )
+        signals.post_save.connect(
+            location_context_post_save_handler,
+            sender=LocationContextFilterGroupOrder
+        )