diff --git a/tests/test_wtw.py b/tests/test_wtw.py
index f1d25d81..44fe4869 100644
--- a/tests/test_wtw.py
+++ b/tests/test_wtw.py
@@ -149,7 +149,6 @@ def test_fwtw_overrides(self):
         self.assertEqual(fwtw.service_reservoir_tank.area, 34.7)
         self.assertEqual(fwtw.service_reservoir_storage_elevation, 68.2)
         self.assertEqual(fwtw.service_reservoir_tank.datum, 68.2)
-        self.assertEqual(fwtw.process_parameters["nitrate"]["constant"], 0.01)
 
 
 if __name__ == "__main__":