Index: wflow-py/wflow/wflow_sbm.py
===================================================================
diff -u -rab8caa7e1395fd178532feafe2fdae06f875f1b1 -re71ad2de03777dca02510a47f65dd6f7075a876b
--- wflow-py/wflow/wflow_sbm.py	(.../wflow_sbm.py)	(revision ab8caa7e1395fd178532feafe2fdae06f875f1b1)
+++ wflow-py/wflow/wflow_sbm.py	(.../wflow_sbm.py)	(revision e71ad2de03777dca02510a47f65dd6f7075a876b)
@@ -349,8 +349,9 @@
         if hasattr(self,'ReserVoirLocs'):
             states.append('ReservoirVolume')
 
-        if self.nrpaddyirri > 0:
-            states.append('PondingDepth')
+        if hasattr(self,'nrpaddyirri'):
+            if self.nrpaddyirri > 0:
+                states.append('PondingDepth')
         return states
 
     def supplyCurrentTime(self):