diff --git a/src/app/charts/chart.component.html b/src/app/charts/chart.component.html
index 3442e5af..0c581311 100644
--- a/src/app/charts/chart.component.html
+++ b/src/app/charts/chart.component.html
@@ -14,7 +14,7 @@ <h2 class="chart-label">
     <ccl-basetemp-parameters
         [indicator]="chart.indicator"
         [extraParams]="extraParams"
-        (basetempParamSelected)="onThresholdSelected($event)">
+        (basetempParamSelected)="onExtraParamsSelected($event)">
     </ccl-basetemp-parameters>
 </div>
 <div *ngIf="isPercentileIndicator(chart.indicator.name)" class="chart-options">
diff --git a/src/app/charts/chart.component.ts b/src/app/charts/chart.component.ts
index ce27a455..4c222112 100644
--- a/src/app/charts/chart.component.ts
+++ b/src/app/charts/chart.component.ts
@@ -29,7 +29,7 @@ import { DataExportService } from '../services/data-export.service';
 import { ImageExportService } from '../services/image-export.service';
 
 import { isBasetempIndicator,
-         isPercentileIndicator
+         isPercentileIndicator,
          isThresholdIndicator } from '../charts/extra-params-components/extra-params.constants';
 
 import * as _ from 'lodash';
diff --git a/src/app/charts/extra-params-components/basetemp.component.html b/src/app/charts/extra-params-components/basetemp.component.html
index bc1d2915..5a28364e 100644
--- a/src/app/charts/extra-params-components/basetemp.component.html
+++ b/src/app/charts/extra-params-components/basetemp.component.html
@@ -8,10 +8,10 @@
                            formControlName="basetempCtl">
                 </div>
                 <select class="form-control chart-options-group" formControlName="basetempUnitCtl">
-                    <option *ngFor="let unit of basetempUnits"
+                    <option *ngFor="let unit of temperatureUnits"
                         [value]="unit.key">{{unit.label}}
                     </option>
                 </select>
         </div>
     </form>
-</div>
\ No newline at end of file
+</div>
diff --git a/src/app/charts/extra-params-components/basetemp.component.ts b/src/app/charts/extra-params-components/basetemp.component.ts
index 86c457e0..affad747 100644
--- a/src/app/charts/extra-params-components/basetemp.component.ts
+++ b/src/app/charts/extra-params-components/basetemp.component.ts
@@ -3,6 +3,7 @@ import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 
 import { Indicator } from '../../models/indicator.model';
 import { BasetempIndicatorQueryParams } from '../../models/basetemp-indicator-query-params.model';
+import { TemperatureUnits } from './extra-params.constants';
 
 import * as _ from 'lodash';
 
@@ -25,12 +26,7 @@ export class BasetempComponent implements AfterViewInit, OnInit {
     // default form values
     private defaultBasetemp = 50;
     private defaultBasetempUnit = 'F';
-
-    public basetempUnits: any[] = [
-        {'key': 'K', 'label': 'Kelvin'},
-        {'key': 'F', 'label': 'Farenheit'},
-        {'key': 'C', 'label': 'Centigrade'}
-     ];
+    private temperatureUnits = TemperatureUnits;
 
     constructor(private formBuilder: FormBuilder) {}
 
diff --git a/src/app/charts/extra-params-components/extra-params.constants.ts b/src/app/charts/extra-params-components/extra-params.constants.ts
index f9a817cd..bab1cebf 100644
--- a/src/app/charts/extra-params-components/extra-params.constants.ts
+++ b/src/app/charts/extra-params-components/extra-params.constants.ts
@@ -19,6 +19,18 @@ const percentileIndicatorNames = [
 
 const extraParamsIndicatorNames = [].concat(thresholdIndicatorNames, percentileIndicatorNames);
 
+export const TemperatureUnits: any[] = [
+    {'key': 'K', 'label': 'Kelvin'},
+    {'key': 'F', 'label': 'Farenheit'},
+    {'key': 'C', 'label': 'Centigrade'}
+ ];
+
+export const PrecipitationUnits: any[] = [
+    {'key': 'mm', 'label': 'millimeters'},
+    {'key': 'in', 'label': 'inches'},
+    {'key': 'kg/m^2', 'label': 'kg/m^2'}
+];
+
 export function isBasetempIndicator(indicatorName: string): boolean {
     return basetempIndicatorNames.indexOf(indicatorName) !== -1;
 }
@@ -33,4 +45,4 @@ export function hasExtraParams(indicatorName: string): boolean {
 
 export function isPercentileIndicator(indicatorName: string): boolean {
     return percentileIndicatorNames.indexOf(indicatorName) !== -1;
-}
+}
\ No newline at end of file
diff --git a/src/app/charts/extra-params-components/threshold.component.ts b/src/app/charts/extra-params-components/threshold.component.ts
index ce8eef2b..fc75ca2f 100644
--- a/src/app/charts/extra-params-components/threshold.component.ts
+++ b/src/app/charts/extra-params-components/threshold.component.ts
@@ -3,6 +3,8 @@ import { FormBuilder, FormGroup, Validators } from '@angular/forms';
 
 import { Indicator } from '../../models/indicator.model';
 import { ThresholdIndicatorQueryParams } from '../../models/threshold-indicator-query-params.model';
+import { PrecipitationUnits,
+         TemperatureUnits } from './extra-params.constants';
 
 import * as _ from 'lodash';
 
@@ -22,24 +24,15 @@ export class ThresholdComponent implements AfterViewInit, OnInit {
 
     thresholdForm: FormGroup;
 
-    private thresholdTemperatureUnits: any[] = [
-        {'key': 'K', 'label': 'Kelvin'},
-        {'key': 'F', 'label': 'Farenheit'},
-        {'key': 'C', 'label': 'Centigrade'}
-     ];
-
-     private thresholdComparators: any[] = [
+    private thresholdComparators: any[] = [
         {'key': 'gte', 'label': 'greater than or equal to'},
         {'key': 'lte', 'label': 'less than or equal to'},
         {'key': 'gt', 'label': 'greater than'},
         {'key': 'lt', 'label': 'less than'}
     ];
 
-    private thresholdPrecipitationUnits: any[] = [
-        {'key': 'mm', 'label': 'millimeters'},
-        {'key': 'in', 'label': 'inches'},
-        {'key': 'kg/m^2', 'label': 'kg/m^2'}
-    ];
+    private temperatureUnits = TemperatureUnits;
+    private precipitationUnits = PrecipitationUnits;
 
     // default form values
     private defaultThreshold = 50;
@@ -49,8 +42,7 @@ export class ThresholdComponent implements AfterViewInit, OnInit {
     private defaultComparator = 'lte';
 
     @Input() comparators: any[] = this.thresholdComparators;
-
-    @Input() thresholdUnits: any[] = this.thresholdTemperatureUnits;
+    @Input() thresholdUnits: any[] = this.temperatureUnits;
 
     constructor(private formBuilder: FormBuilder) {}
 
@@ -90,10 +82,10 @@ export class ThresholdComponent implements AfterViewInit, OnInit {
         // Set component to precip or temperature
         if (this.indicator.variables.includes('pr')) {
             this.defaultUnit = this.defaultPrecipitationUnit;
-            this.thresholdUnits = this.thresholdPrecipitationUnits;
+            this.thresholdUnits = this.precipitationUnits;
         } else {
             this.defaultUnit = this.defaultTemperatureUnit;
-            this.thresholdUnits = this.thresholdTemperatureUnits;
+            this.thresholdUnits = this.temperatureUnits;
         }
     }
 }
diff --git a/src/app/services/indicator.service.ts b/src/app/services/indicator.service.ts
index 84f33bc4..b620e8e0 100644
--- a/src/app/services/indicator.service.ts
+++ b/src/app/services/indicator.service.ts
@@ -11,9 +11,6 @@ import { BasetempIndicatorQueryParams } from '../models/basetemp-indicator-query
 import { PercentileIndicatorQueryParams } from '../models/percentile-indicator-query-params.model';
 import { IndicatorQueryParams } from '../models/indicator-query-params.model';
 
-import { ApiHttp } from '../auth/api-http.service';
-import { apiHost } from '../constants';
-
 import { isBasetempIndicator,
          isPercentileIndicator,
          isThresholdIndicator } from '../charts/extra-params-components/extra-params.constants';