diff --git a/django_project/minisass_authentication/serializers.py b/django_project/minisass_authentication/serializers.py
index 150e981e3..e62e2eea4 100644
--- a/django_project/minisass_authentication/serializers.py
+++ b/django_project/minisass_authentication/serializers.py
@@ -1,5 +1,6 @@
 from rest_framework import serializers
 from django.contrib.auth.models import User
+from minisass_authentication.models import Lookup
 
 class UserSerializer(serializers.ModelSerializer):
     class Meta:
@@ -14,3 +15,8 @@ def create(self, validated_data):
 
 class PasswordResetRequestSerializer(serializers.Serializer):
     email = serializers.EmailField()
+
+class LookupSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Lookup
+        fields = '__all__'
diff --git a/django_project/monitor/migrations/0001_initial.py b/django_project/monitor/migrations/0001_initial.py
index 52075262f..295651ddb 100644
--- a/django_project/monitor/migrations/0001_initial.py
+++ b/django_project/monitor/migrations/0001_initial.py
@@ -51,7 +51,7 @@ class Migration(migrations.Migration):
                 ('score', models.DecimalField(max_digits=4, decimal_places=2, default=0)),
                 ('site', models.ForeignKey(related_name='observation',on_delete=models.CASCADE, db_column='site', to='monitor.Sites',blank=True, null=True)),
                 ('time_stamp', models.DateTimeField(auto_now=True,null=True, blank=True)),
-                ('comment', models.CharField(max_length=255, blank=True)),
+                ('comment', models.CharField(max_length=255,null=True, blank=True)),
                 ('obs_date', models.DateField(blank=True, null=True)),
                 ('flag', models.CharField(default='dirty', max_length=5)),
                 ('water_clarity', models.DecimalField(max_digits=8, decimal_places=1, blank=True)),
diff --git a/django_project/monitor/serializers.py b/django_project/monitor/serializers.py
index 54a442141..63328b751 100644
--- a/django_project/monitor/serializers.py
+++ b/django_project/monitor/serializers.py
@@ -4,6 +4,7 @@
     Observations,
     Sites
 )
+from minisass_authentication.serializers import LookupSerializer 
 
 class SitesSerializer(serializers.ModelSerializer):
     class Meta:
@@ -11,13 +12,7 @@ class Meta:
         fields = '__all__'
 
 class ObservationsSerializer(serializers.ModelSerializer):
-    site = SitesSerializer()
-    sitename = serializers.CharField(source='site.site_name')
-    rivername = serializers.CharField(source='site.river_name')
-    sitedescription = serializers.CharField(source='site.description')
-    rivercategory = serializers.CharField(source='site.river_cat')
-    longitude = serializers.FloatField(source='site.the_geom.x')
-    latitude = serializers.FloatField(source='site.the_geom.y')
+    site = serializers.SerializerMethodField()
     collectorsname = serializers.SerializerMethodField()
     organisationtype = serializers.SerializerMethodField()
 
@@ -25,12 +20,18 @@ class Meta:
         model = Observations
         fields = '__all__'
 
-    def get_collectorsname(self, obj):
-        try:
-            user_profile = UserProfile.objects.get(user=obj.user)
-        except UserProfile.DoesNotExist:
-            user_profile = None
+    def get_site(self, obj):
+        return {
+            'sitename': obj.site.site_name,
+            'rivername': obj.site.river_name,
+            'sitedescription': obj.site.description,
+            'rivercategory': obj.site.river_cat,
+            'longitude': obj.site.the_geom.x,
+            'latitude': obj.site.the_geom.y,
+        }
 
+    def get_collectorsname(self, obj):
+        user_profile = self.get_user_profile(obj)
         return (
             f"{user_profile.user.first_name} {user_profile.user.last_name}"
             if user_profile and user_profile.user.first_name and user_profile.user.last_name
@@ -38,9 +39,11 @@ def get_collectorsname(self, obj):
         )
 
     def get_organisationtype(self, obj):
+        user_profile = self.get_user_profile(obj)
+        return LookupSerializer(user_profile.organisation_type).data if user_profile else ""
+
+    def get_user_profile(self, obj):
         try:
-            user_profile = UserProfile.objects.get(user=obj.user)
+            return UserProfile.objects.get(user=obj.user)
         except UserProfile.DoesNotExist:
-            user_profile = None
-
-        return user_profile.organisation_type if user_profile else ""
+            return None
diff --git a/django_project/monitor/test_observations.py b/django_project/monitor/test_observations.py
index 1858f54de..56db64f64 100644
--- a/django_project/monitor/test_observations.py
+++ b/django_project/monitor/test_observations.py
@@ -28,6 +28,7 @@ def setUp(self):
             leeches=False,
             crabs_shrimps=False,
             site=self.site,
+            comment='test_comment',
             score=4.5,
             obs_date=date.today(),
             flag='clean',
@@ -85,4 +86,4 @@ def test_observation_delete_view(self):
 
         # Check if the object is actually deleted from the database
         with self.assertRaises(Observations.DoesNotExist):
-            Observations.objects.get(gid=observation.gid)
\ No newline at end of file
+            Observations.objects.get(gid=observation.gid)