diff --git a/harmonize_wq/domains.py b/harmonize_wq/domains.py
index 72e994d..647d0ad 100644
--- a/harmonize_wq/domains.py
+++ b/harmonize_wq/domains.py
@@ -257,7 +257,14 @@ def char_tbl_TADA(df, char):
     Returns
     -------
     new_char_dict : dict
-        {Target.TADA.CharacteristicName: {Target.TADA.ResultSampleFractionText: [Target.TADA.ResultSampleFractionText]}
+        Returned dictionary follows general structure:
+            {
+                "Target.TADA.CharacteristicName": {
+                    "Target.TADA.ResultSampleFractionText": [
+                        "Target.TADA.ResultSampleFractionText"
+                    ]
+                }
+            }
     """
     cols = [
         "Target.TADA.CharacteristicName",
diff --git a/harmonize_wq/tests/test_harmonize_WQP.py b/harmonize_wq/tests/test_harmonize_WQP.py
index 059dbd1..f5e1a9c 100644
--- a/harmonize_wq/tests/test_harmonize_WQP.py
+++ b/harmonize_wq/tests/test_harmonize_WQP.py
@@ -1133,7 +1133,8 @@ def test_harmonize_fecal_coliform():
     # Inspect specific result - where value missing
     assert str(actual.iloc[1][orig_val_col]) == "*Non-detect"  # Confirm missing
     # Confirm expected flag - for missing value
-    expected_flag = 'ResultMeasureValue: "*Non-detect" result cannot be used; ResultMeasure/MeasureUnitCode: MISSING UNITS, CFU/(100ml) assumed'
+    expected_flag = 'ResultMeasureValue: "*Non-detect" result cannot be used; '
+    expected_flag += "ResultMeasure/MeasureUnitCode: MISSING UNITS, CFU/(100ml) assumed"
     assert actual.iloc[1]["QA_flag"] == expected_flag
     # Inspect specific result - un-usable non-numeric values
     assert actual.iloc[75305][orig_val_col] == "Not Reported"