--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/access/SedimentLoadAccess.java	Mon Jan 21 17:11:10 2013 +0100
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/access/SedimentLoadAccess.java	Mon Jan 21 17:26:08 2013 +0100
@@ -4,41 +4,34 @@
 
 import org.apache.log4j.Logger;
 
+import de.intevation.artifacts.CallContext;
+
 import de.intevation.flys.artifacts.FLYSArtifact;
 
 
 public class SedimentLoadAccess
-extends RiverAccess
+extends      RangeAccess
 {
     private static final Logger logger = Logger.getLogger(BedHeightAccess.class);
 
     private int[] singleIDs;
     private int[] epochIDs;
 
-    private Double lowerKM;
-    private Double upperKM;
-
     private String time;
     private String unit;
 
-    public SedimentLoadAccess(FLYSArtifact artifact) {
-        super(artifact);
+    public SedimentLoadAccess(FLYSArtifact artifact, CallContext context) {
+        super(artifact, context);
     }
 
     public Double getLowerKM() {
-        if (lowerKM == null) {
-            lowerKM = getDouble("ld_from");
-        }
-
-        return lowerKM;
+        // TODO update callers
+        return getFrom();
     }
 
     public Double getUpperKM() {
-        if (upperKM == null) {
-            upperKM = getDouble("ld_to");
-        }
-
-        return upperKM;
+        // TODO update callers
+        return getTo();
     }
 
     public String getYearEpoch() {