--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/SedimentLoad.java	Fri Jun 21 15:33:06 2013 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/SedimentLoad.java	Fri Jun 21 15:35:44 2013 +0200
@@ -24,6 +24,7 @@
     protected Date start;
     protected Date end;
     protected boolean isEpoch;
+    protected String unit;
 
     protected HashMap<Double, SedimentLoadFraction> kms;
 
@@ -35,13 +36,15 @@
         String description,
         Date start,
         Date end,
-        boolean isEpoch
+        boolean isEpoch,
+        String unit
     ) {
         this();
         this.description = description;
         this.start = start;
         this.end = end;
         this.isEpoch = isEpoch;
+        this.unit = unit;
     }
 
     public String getDescription() {
@@ -192,6 +195,27 @@
         }
     }
 
+    public void setUnknown(double km, double unknown, Range range) {
+        if (kms.containsKey(km)) {
+            kms.get(km).setUnknown(unknown);
+            kms.get(km).setUnknownRange(range);
+        }
+        else {
+            SedimentLoadFraction f = new SedimentLoadFraction();
+            f.setUnknown(unknown);
+            f.setUnknownRange(range);
+            kms.put(km, f);
+        }
+    }
+
+    public String getUnit() {
+        return unit;
+    }
+
+    public void setUnit(String unit) {
+        this.unit = unit;
+    }
+
     public boolean hasCoarse() {
         for (SedimentLoadFraction slf : kms.values()) {
             if (slf.getCoarse() > 0d) {