diff --git a/app/services/burst_location.py b/app/services/burst_location.py
index cb8154e..3892ca2 100644
--- a/app/services/burst_location.py
+++ b/app/services/burst_location.py
@@ -126,15 +126,16 @@ def run_burst_location_by_network(
             )
             observed_source = "simulation_scheme_burst_realtime_normal_timerange"
         else:
-            burst_pressure_series, burst_pressure_samples = (
-                _build_observed_series_from_scada(
-                    network=network,
-                    sensor_ids=selected_pressure_ids,
-                    start_dt=burst_start_dt,
-                    end_dt=burst_end_dt,
-                    data_type="pressure",
-                    series_name="burst_pressure",
-                )
+            (
+                burst_pressure_series,
+                burst_pressure_samples,
+            ) = _build_observed_series_from_scada(
+                network=network,
+                sensor_ids=selected_pressure_ids,
+                start_dt=burst_start_dt,
+                end_dt=burst_end_dt,
+                data_type="pressure",
+                series_name="burst_pressure",
             )
             (
                 normal_pressure_series,
diff --git a/tests/unit/test_burst_location_service.py b/tests/unit/test_burst_location_service.py
index 7b4fa08..abe38a1 100644
--- a/tests/unit/test_burst_location_service.py
+++ b/tests/unit/test_burst_location_service.py
@@ -228,3 +228,74 @@ def test_run_burst_location_requires_simulation_scheme_name(monkeypatch, tmp_pat
             scada_burst_start=datetime(2025, 1, 1, 8, 0, 0),
             scada_burst_end=datetime(2025, 1, 1, 9, 0, 0),
         )
+
+
+def test_run_burst_location_monitoring_uses_scada_for_burst_and_realtime_for_normal(
+    monkeypatch, tmp_path
+):
+    module = _load_burst_location_module()
+    captured = {}
+    scada_calls = []
+    realtime_calls = []
+
+    monkeypatch.setattr(
+        module,
+        "get_all_scada_info",
+        lambda network: [
+            {
+                "type": "pressure",
+                "associated_element_id": "J1",
+                "api_query_id": "pressure-query",
+            }
+        ],
+    )
+    monkeypatch.setattr(module, "_prepare_burst_inp", lambda network: str(tmp_path / "fake.inp"))
+    monkeypatch.setattr(
+        module,
+        "run_burst_location",
+        lambda **kwargs: captured.update(kwargs) or {"located_pipe": "Pipe-001"},
+    )
+
+    def fake_scada_query(**kwargs):
+        scada_calls.append(kwargs)
+        return {
+            "pressure-query": [
+                {"time": kwargs["start_time"], "value": 20.0},
+                {"time": kwargs["end_time"], "value": 22.0},
+            ]
+        }
+
+    def fake_realtime_query(**kwargs):
+        realtime_calls.append(kwargs)
+        return {
+            "J1": [
+                {"time": kwargs["start_time"], "value": 10.0},
+                {"time": kwargs["end_time"], "value": 12.0},
+            ]
+        }
+
+    monkeypatch.setattr(
+        module.InternalQueries,
+        "query_scada_by_ids_timerange",
+        staticmethod(fake_scada_query),
+    )
+    monkeypatch.setattr(
+        module.InternalQueries,
+        "query_realtime_simulation_by_ids_timerange",
+        staticmethod(fake_realtime_query),
+    )
+
+    result = module.run_burst_location_by_network(
+        network="tjwater",
+        username="testuser",
+        data_source="monitoring",
+        burst_leakage=1.0,
+        scada_burst_start=datetime(2025, 1, 1, 8, 0, 0),
+        scada_burst_end=datetime(2025, 1, 1, 9, 0, 0),
+    )
+
+    assert result["observed_source"] == "scada_burst_realtime_normal_timerange"
+    assert len(scada_calls) == 1
+    assert len(realtime_calls) == 1
+    assert captured["burst_pressure"]["J1"] == pytest.approx(21.0)
+    assert captured["normal_pressure"]["J1"] == pytest.approx(11.0)