diff --git a/assets/src/scripts/components/hydrograph/audible.js b/assets/src/scripts/components/hydrograph/audible.js
index 692af365aafc7b74323453bad3273677fe3364eb..b6af9974c423b5f144286cce5fcfa30596953fef 100644
--- a/assets/src/scripts/components/hydrograph/audible.js
+++ b/assets/src/scripts/components/hydrograph/audible.js
@@ -147,7 +147,7 @@ export const audibleUI = function (elem) {
             elem.attr('data-max-offset', domain[1].getTime() - domain[0].getTime());
         }, xScaleSelector('current')))
         .on('click', dispatch(function() {
-            var button = select(this);
+            const button = select(this);
             if (button.attr('title') === 'Play') {
                 return Actions.startTimeseriesPlay(button.attr('data-max-offset'));
             } else {
diff --git a/assets/src/scripts/components/hydrograph/index.js b/assets/src/scripts/components/hydrograph/index.js
index 91772208a0542abebdd1dfc787e40b79897df353..9bcb759dea4b34c283124ebd13a32d0f1fea674c 100644
--- a/assets/src/scripts/components/hydrograph/index.js
+++ b/assets/src/scripts/components/hydrograph/index.js
@@ -7,7 +7,7 @@ const { select } = require('d3-selection');
 
 const { createStructuredSelector } = require('reselect');
 
-const { addSVGAccessibility, addSROnlyTable } = require('../../accessibility');
+const { addSVGAccessibility } = require('../../accessibility');
 const { USWDS_MEDIUM_SCREEN, USWDS_SMALL_SCREEN, STATIC_URL } = require('../../config');
 const { dispatch, link, provide } = require('../../lib/redux');
 const { Actions } = require('../../store');
diff --git a/assets/src/scripts/components/hydrograph/parameters.js b/assets/src/scripts/components/hydrograph/parameters.js
index c454172da62ea3cc2070ed448b116a3ee34c5a35..063fb0d4475acfd6c3bd81b9d13c231d20a6cb20 100644
--- a/assets/src/scripts/components/hydrograph/parameters.js
+++ b/assets/src/scripts/components/hydrograph/parameters.js
@@ -123,6 +123,7 @@ export const addSparkLine = function(svgSelection, {seriesLineSegments, scales})
  * Draws a table with clickable rows of timeseries parameter codes. Selecting
  * a row changes the active parameter code.
  * @param  {Object} elem                        d3 selection
+ * @param  {String} siteno
  * @param  {Object} availableTimeseries         Timeseries metadata to display
  * @param  {Object} lineSegmentsByParmCd        line segments for each parameter code
  * @param  {Object} timeSeriesScalesByParmCd    scales for each parameter code