diff --git a/assets/src/scripts/components/hydrograph/drawingData.js b/assets/src/scripts/components/hydrograph/drawingData.js
index 48354b4cbdd84868d8d73a2812f9da8c50645495..bc442e4bff0832e0f44abc0a9f4cbda0d93eb1e3 100644
--- a/assets/src/scripts/components/hydrograph/drawingData.js
+++ b/assets/src/scripts/components/hydrograph/drawingData.js
@@ -171,7 +171,7 @@ export const flatPointsSelector = memoize(tsKey => createSelector(
 export const classesForPoint = point => {
     return {
         approved: point.qualifiers.indexOf('A') > -1,
-        estimated: point.qualifiers.indexOf('e') > -1
+        estimated: point.qualifiers.indexOf('e') > -1 || point.qualifiers.indexOf('E') > -1
     };
 };
 
diff --git a/assets/src/scripts/components/hydrograph/drawingData.spec.js b/assets/src/scripts/components/hydrograph/drawingData.spec.js
index fd9e2a42696f5f59ba19d2fcad715914558b243f..9dc0229a1bb018fa800758e3aca17d92f9df15c3 100644
--- a/assets/src/scripts/components/hydrograph/drawingData.spec.js
+++ b/assets/src/scripts/components/hydrograph/drawingData.spec.js
@@ -307,7 +307,7 @@ describe('drawingData module', () => {
                                 qualifiers: ['P', 'e']
                             }, {
                                 value: 10,
-                                qualifiers: ['P', 'e']
+                                qualifiers: ['P', 'E']
                             }],
                             tsKey: 'current:P7D'
                         },
@@ -352,7 +352,7 @@ describe('drawingData module', () => {
                                 'value': 10,
                                 'qualifiers': [
                                     'P',
-                                    'e'
+                                    'E'
                                 ]
                             }
                         ]