diff --git a/epmet-module/gov-org/gov-org-server/src/main/java/com/epmet/model/DangerousChemicalsImportListener.java b/epmet-module/gov-org/gov-org-server/src/main/java/com/epmet/model/DangerousChemicalsImportListener.java
index cfa2ff9f9d..e164649b63 100644
--- a/epmet-module/gov-org/gov-org-server/src/main/java/com/epmet/model/DangerousChemicalsImportListener.java
+++ b/epmet-module/gov-org/gov-org-server/src/main/java/com/epmet/model/DangerousChemicalsImportListener.java
@@ -162,7 +162,7 @@ public class DangerousChemicalsImportListener extends AnalysisEventListener<Dang
             }
         } finally {
             insertList.clear();
-            existMap.clear();
+            existMap = null;
         }
     }