diff --git a/echopype/convert/set_groups_ad2cp.py b/echopype/convert/set_groups_ad2cp.py
index 2828c74c7..08ede041f 100644
--- a/echopype/convert/set_groups_ad2cp.py
+++ b/echopype/convert/set_groups_ad2cp.py
@@ -245,13 +245,6 @@ def set_platform(self) -> xr.Dataset:
                 "roll": "roll",
             }
         )
-        ds = ds.assign_attrs(
-            {
-                "platform_name": self.ui_param["platform_name"],  # type: ignore
-                "platform_type": self.ui_param["platform_type"],  # type: ignore
-                "platform_code_ICES": self.ui_param["platform_code_ICES"],  # type: ignore
-            }
-        )
         return set_time_encodings(ds)
 
     def set_beam(self) -> List[xr.Dataset]:
diff --git a/echopype/convert/set_groups_base.py b/echopype/convert/set_groups_base.py
index 5c4808412..7c520d17b 100644
--- a/echopype/convert/set_groups_base.py
+++ b/echopype/convert/set_groups_base.py
@@ -41,7 +41,6 @@ def __init__(
         self.engine = engine
         self.compress = compress
         self.overwrite = overwrite
-        self.ui_param = params
 
         # parsed data written directly to zarr object
         self.parsed2zarr_obj = parsed2zarr_obj
@@ -71,7 +70,6 @@ def set_toplevel(self, sonar_model, date_created=None) -> xr.Dataset:
             "summary": "",
             "title": "",
             "date_created": np.datetime_as_string(date_created, "s") + "Z",
-            "survey_name": self.ui_param["survey_name"],
         }
         # Save
         ds = xr.Dataset()
diff --git a/echopype/convert/set_groups_ek80.py b/echopype/convert/set_groups_ek80.py
index c0721b06d..f6df27213 100644
--- a/echopype/convert/set_groups_ek80.py
+++ b/echopype/convert/set_groups_ek80.py
@@ -305,9 +305,7 @@ def set_platform(self) -> xr.Dataset:
         )
 
         # Collect variables
-        if self.ui_param["water_level"] is not None:
-            water_level = self.ui_param["water_level"]
-        elif "water_level_draft" in self.parser_obj.environment:
+        if "water_level_draft" in self.parser_obj.environment:
             water_level = self.parser_obj.environment["water_level_draft"]
         else:
             water_level = np.nan