diff --git a/src/main/java/gov/usgs/earthquake/nshmp/gmm/KuehnEtAl_2020.java b/src/main/java/gov/usgs/earthquake/nshmp/gmm/KuehnEtAl_2020.java
index 90fd24b218a8ebade1e73ff8a179af9e59286ec2..03d06ae9d9e0af25232596ccdc054f2765a32d82 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/gmm/KuehnEtAl_2020.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/gmm/KuehnEtAl_2020.java
@@ -245,6 +245,7 @@ public abstract class KuehnEtAl_2020 implements GroundMotionModel {
 
   abstract boolean basin();
 
+  /* Only true for interface */
   abstract boolean seattle();
 
   @Override
@@ -376,8 +377,6 @@ public abstract class KuehnEtAl_2020 implements GroundMotionModel {
       double z2p5,
       boolean seattle) {
 
-    // TODO add Seattle flag
-
     if (Double.isNaN(z2p5)) {
       return 0.0;
     }
@@ -394,28 +393,6 @@ public abstract class KuehnEtAl_2020 implements GroundMotionModel {
     }
 
     return fb;
-
-    // switch (region) {
-    // case Region.CASCADIA:
-    // // Eq. 4.14
-    // switch (basin) {
-    // case Basin.SEATTLE:
-    // return c.θ11S; // Seattle-specific
-    // case Basin.OTHER:
-    // // TODO:
-    // // The paper returns this:
-    // // System.out.printf(" OTHER basin: taking minimum of %.9f and
-    // // %.9f\n",c.θ11 + c.θ12 * δlnZ, c.θ11S);
-    // // return min(c.θ11 + c.θ12 * δlnZ, c.θ11S);
-    // // The official python code just returns this:
-    // return c.θ11 + c.θ12 * δlnZ;
-    // default:
-    // return 0.0;
-    // }
-    // default:
-    // // Eq. 4.10
-    // return c.θ11 + c.θ12 * δlnZ;
-    // }
   }
 
   /* Eq. 4.11 - basin reference depth for vs30; Cascadia model */