diff --git a/src/main/java/com/conveyal/datatools/manager/DataSanitizer.java b/src/main/java/com/conveyal/datatools/manager/DataSanitizer.java
index efd02b294..99b128e2d 100644
--- a/src/main/java/com/conveyal/datatools/manager/DataSanitizer.java
+++ b/src/main/java/com/conveyal/datatools/manager/DataSanitizer.java
@@ -35,6 +35,7 @@
 import java.util.List;
 import java.util.Set;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import static com.conveyal.datatools.manager.DataManager.GTFS_DATA_SOURCE;
 import static com.conveyal.datatools.manager.DataManager.initializeApplication;
@@ -170,7 +171,7 @@ public static int deleteObsoleteFeedVersions(
 
         int keepCount = 0;
         int deleteCount = 0;
-        
+
         for (FeedVersion feedVersion : feedVersions) {
             if (keepCount < numberOfVersionsToKeep) {
                 keepCount++;
@@ -231,7 +232,7 @@ public static List<FeedVersionAudit> feedVersionAudit() {
      * Group orphaned schemas and optionally delete.
      */
     public static void sanitizeDBSchemas(boolean delete) {
-        Set<String> orphanedSchemas = getOrphanedDBSchemas(getFieldFromDocument("namespace", "FeedVersion"));
+        Set<String> orphanedSchemas = getOrphanedDBSchemas(getActiveDBSchemas());
         if (orphanedSchemas.isEmpty()) {
             System.out.println("No orphaned DB schemas found!");
 
@@ -247,6 +248,18 @@ public static void sanitizeDBSchemas(boolean delete) {
         }
     }
 
+    /**
+     * Get all active namespaces/schemas from feed sources and feed versions.
+     */
+    public static Set<String> getActiveDBSchemas() {
+        return Stream
+            .concat(
+                getFieldFromDocument("namespace", "FeedVersion").stream(),
+                getFieldFromDocument("editorNamespace", "FeedSource").stream()
+            )
+            .collect(Collectors.toSet());
+    }
+
     /**
      * Delete orphaned feed versions.
      */
@@ -283,7 +296,7 @@ private static List<FeedVersion> getOrphanedFeedVersions() {
     }
 
     /**
-     * Get all qualifying schemas that are not associated with a feed version.
+     * Get all qualifying schemas that are not associated with a feed version or a GTFS Editor for a feed source.
      */
     public static Set<String> getOrphanedDBSchemas(Set<String> associatedSchemas) {
         String whereClause = associatedSchemas.isEmpty() ? "" : String.format(" WHERE nspname NOT IN (%s)", associatedSchemas
diff --git a/src/test/java/com/conveyal/datatools/DataSanitizerTest.java b/src/test/java/com/conveyal/datatools/DataSanitizerTest.java
index 9648d0982..b17a84c67 100644
--- a/src/test/java/com/conveyal/datatools/DataSanitizerTest.java
+++ b/src/test/java/com/conveyal/datatools/DataSanitizerTest.java
@@ -1,6 +1,5 @@
 package com.conveyal.datatools;
 
-import com.conveyal.datatools.common.utils.aws.CheckedAWSException;
 import com.conveyal.datatools.manager.DataManager;
 import com.conveyal.datatools.manager.DataSanitizer;
 import com.conveyal.datatools.manager.auth.Auth0Connection;
@@ -10,14 +9,12 @@
 import com.conveyal.datatools.manager.models.Project;
 import com.conveyal.datatools.manager.persistence.Persistence;
 import com.conveyal.gtfs.GTFS;
-import com.conveyal.gtfs.util.InvalidNamespaceException;
 import com.mongodb.client.model.Sorts;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
-import java.sql.SQLException;
 import java.util.Collection;
 import java.util.List;
 import java.util.HashSet;
@@ -54,6 +51,7 @@ static void setUp() throws IOException {
         FeedSource feedSource = new FeedSource(appendDate("Test Feed"), project.id, MANUALLY_UPLOADED);
         Persistence.feedSources.create(feedSource);
         feedSourceParent = new FeedSource(appendDate("Test Feed 2"), project.id, MANUALLY_UPLOADED);
+        feedSourceParent.editorNamespace = "active-editor-namespace";
         Persistence.feedSources.create(feedSourceParent);
         feedSourceWithObsoleteFeedVersion = new FeedSource(appendDate("Test Feed 3"), project.id, MANUALLY_UPLOADED);
         Persistence.feedSources.create(feedSourceWithObsoleteFeedVersion);
@@ -84,7 +82,7 @@ static void setUp() throws IOException {
     }
 
     @AfterAll
-    static void tearDown() throws SQLException, InvalidNamespaceException, CheckedAWSException {
+    static void tearDown() {
         Auth0Connection.setAuthDisabled(false);
         ProcessSingleFeedJob.VALIDATE_MOBILITY_DATA = true;
         project.delete();
@@ -95,7 +93,7 @@ static void tearDown() throws SQLException, InvalidNamespaceException, CheckedAW
         try {
             GTFS.delete(orphanedDBSchema, DataManager.GTFS_DATA_SOURCE);
         } catch (Exception e) {
-          // Do nothing. Schema removed in unit test.
+            // Do nothing. Schema removed in unit test.
         }
     }
 
@@ -120,6 +118,13 @@ void canIdentifyOrphanedDBSchemas() {
         assertTrue(orphanedSchemas.contains(orphanedDBSchema));
     }
 
+    @Test
+    void canIdentifyActiveDBSchemas() {
+        // Other schemas will exist. For this test, just make sure the list contains the feed source editor namespace.
+        Set<String> activeDBSchemas = DataSanitizer.getActiveDBSchemas();
+        assertTrue(activeDBSchemas.contains(feedSourceParent.editorNamespace));
+    }
+
     @Test
     void canRemoveOrphanedDBSchema() {
         assertEquals(1, DataSanitizer.deleteOrphanedDBSchemas(Set.of(orphanedDBSchema)));