Index: dam engine/trunk/Xsds Liquid/DamLocation.xsd
===================================================================
diff -u -r448 -r496
--- dam engine/trunk/Xsds Liquid/DamLocation.xsd	(.../DamLocation.xsd)	(revision 448)
+++ dam engine/trunk/Xsds Liquid/DamLocation.xsd	(.../DamLocation.xsd)	(revision 496)
@@ -114,5 +114,6 @@
         </xs:complexType>
       </xs:element>
     </xs:sequence>
+    <xs:attribute name="SurfaceLineName" type="xs:string" use="required" />
   </xs:complexType>
 </xs:schema>
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