diff --git a/terraso_backend/apps/soil_id/models/project_soil_settings.py b/terraso_backend/apps/soil_id/models/project_soil_settings.py
index e7aa33103..1a0897dbd 100644
--- a/terraso_backend/apps/soil_id/models/project_soil_settings.py
+++ b/terraso_backend/apps/soil_id/models/project_soil_settings.py
@@ -87,7 +87,7 @@ def save(self, *args, **kwargs):
                 # delete project intervals...
                 ProjectDepthInterval.objects.filter(project=self).delete()
                 # delete related soil data
-                DepthDependentSoilData.delete_in_project(self.id)
+                DepthDependentSoilData.delete_in_project(self.project.id)
                 # create new intervals
                 self.apply_preset()
         return result
diff --git a/terraso_backend/tests/graphql/mutations/test_soil_data.py b/terraso_backend/tests/graphql/mutations/test_soil_data.py
index 23830e95b..537e1f0e7 100644
--- a/terraso_backend/tests/graphql/mutations/test_soil_data.py
+++ b/terraso_backend/tests/graphql/mutations/test_soil_data.py
@@ -669,26 +669,33 @@ def test_update_project_soil_settings(client, user, project_manager, project):
     assert payload == new_data
 
 
-def test_update_project_depth_interval_preset_no_change(
-    client, project, project_manager, site_with_soil_data
+@pytest.mark.parametrize("depth_interval_preset", ["LANDPKS", "NRCS"])
+def test_update_project_depth_interval_preset_depth_dependent_data(
+    depth_interval_preset, client, project, project_manager, site_with_soil_data
 ):
-    original_depth_interval_preset = project.soil_settings.depth_interval_preset
+    original_preset = project.soil_settings.depth_interval_preset
     input_data = {
         "projectId": str(project.id),
-        "depthIntervalPreset": original_depth_interval_preset,
+        "depthIntervalPreset": depth_interval_preset,
     }
     client.force_login(project_manager)
     response = graphql_query(UPDATE_PROJECT_SETTINGS_QUERY, input_data=input_data, client=client)
     payload = response.json()
     assert "errors" not in payload
     intervals = match_json("*..depthIntervals", payload)
-    assert intervals[0] == make_intervals(LandPKSIntervalDefaults)
-    # make sure soil data was not deleted
+    expected_intervals = make_intervals(
+        {"LANDPKS": LandPKSIntervalDefaults, "NRCS": NRCSIntervalDefaults}[depth_interval_preset]
+    )
+    assert intervals[0] == expected_intervals
+    # make sure soil data was handled correctly
     project.refresh_from_db()
-    assert project.soil_settings.depth_interval_preset == original_depth_interval_preset
+    assert project.soil_settings.depth_interval_preset == depth_interval_preset
     site_with_soil_data.refresh_from_db()
-    assert len(project.soil_settings.depth_intervals.all()) > 0
-    assert len(site_with_soil_data.soil_data.depth_dependent_data.all()) > 0
+    assert project.soil_settings.depth_intervals.exists()
+    if original_preset == depth_interval_preset:
+        assert site_with_soil_data.soil_data.depth_dependent_data.exists()
+    else:
+        assert not site_with_soil_data.soil_data.depth_dependent_data.exists()
 
 
 UPDATE_SOIL_DEPTH_PRESET_GRAPHQL = """