I ran a quick test using your service and was able to retrieve the results successfully. Here's my test code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=7,IE=9" />
<!--The viewport meta tag is used to improve the presentation and behavior of the samples
on iOS devices-->
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
<title>GP Test</title>
<link rel="stylesheet" href="https://community.esri.com//serverapi.arcgisonline.com/jsapi/arcgis/3.0/js/dgrid/css/dgrid.css">
<link rel="stylesheet" href="https://community.esri.com//serverapi.arcgisonline.com/jsapi/arcgis/3.0/js/dgrid/css/skins/claro.css">
<link rel="stylesheet" href="https://community.esri.com//serverapi.arcgisonline.com/jsapi/arcgis/3.0/js/dojo/dijit/themes/claro/claro.css">
<style>
html, body { height: 100%; width: 100%; margin: 0; padding: 0; }
.esriScalebar{
padding: 20px 20px;
}
#map{
padding:0;
}
</style>
<script type="text/javascript">var djConfig = {parseOnLoad: true};</script>
<script type="text/javascript" src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=3.0"></script>
<script type="text/javascript">
dojo.require("dijit.layout.BorderContainer");
dojo.require("dijit.layout.ContentPane");
dojo.require("dgrid.Grid");
dojo.require("esri.map");
dojo.require("esri.tasks.gp");
//Define global variables here.
var map;
var gp;
var grid;
function init() {
loading = dojo.byId("loadingImg");
var initExtent = new esri.geometry.Extent({"xmin":-9215700,"ymin":3216400,"xmax":-9119800,"ymax":3256100,"spatialReference":{"wkid":102100}});
map = new esri.Map("map",{extent:initExtent});
var imageParameters = new esri.layers.ImageParameters();
imageParameters.format = "jpeg"; //set the image type to PNG24, note default is PNG8.
//Cached Maps
//Add the world street map layer to the map. View the ArcGIS Online site for services http://arcgisonline/home/search.html?t=content&f=typekeywords:service
var basemap = new esri.layers.ArcGISTiledMapServiceLayer("http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer");
map.addLayer(basemap);
var eluMapServiceLayer = new esri.layers.ArcGISTiledMapServiceLayer("http://gis.tpcmaps.org/ArcGIS/rest/services/LandUse/Existing_Land_Use/MapServer", {"opacity":0.5, "imageParameters":imageParameters});
map.addLayer(eluMapServiceLayer);
var parcelMapServiceLayer = new esri.layers.ArcGISTiledMapServiceLayer("http://gis.tpcmaps.org/ArcGIS/rest/services/Parcels/MapServer", {"opacity":1.0, "imageParameters":imageParameters});
map.addLayer(parcelMapServiceLayer);
dojo.connect(map, 'onLoad', function(theMap) {
//resize the map when the browser resizes
dojo.connect(dijit.byId('map'), 'resize', map,map.resize);
});
}
dojo.addOnLoad(init);
function getLuLc() {
//Geoprocessing Task
gp = new esri.tasks.Geoprocessor("http://gis.tpcmaps.org/ArcGIS/rest/services/ServerTools/GPServer/LuByFolioId");
//var params = { folioID: dojo.byId("folio").value };
var params = { folioID: "191001.0000" };
gp.submitJob(params, completeCallback, statusCallback);
}
function statusCallback(jobInfo) {
var status = jobInfo.jobStatus;
dojo.byId('status').innerHTML = status;
}
function completeCallback(jobInfo){
var status = jobInfo.jobStatus;
if (status === "esriJobSucceeded"){
console.log("success, jobId:" + jobInfo.jobId);
gp.getResultData(jobInfo.jobId, "OutputTable", displayResult, displayError);
}
}
function displayResult(results, messages) {
//clear the status messages
dojo.byId('status').innerHTML = '';
var resultFeatures = results.value;
//display the results in a dgrid
var data = [];
if(grid){
grid.refresh();
}
data = dojo.map(resultFeatures.features,function(feature){
return {
'FOLIO':feature.attributes.FOLIO,
'SUM_ACREAGE': feature.attributes.SUM_ACREAGE,
'FLUE': feature.attributes.FLUE,
'ELUSHADE':feature.attributes.ELUSHADE
}
});
grid = new dgrid.Grid({
columns:{
'FOLIO': 'Folio',
'SUM_ACREAGE': 'Acreage',
'FLUE': 'Flue',
'ELUSHADE': 'SF'
}
},'grid');
grid.renderArray(data);
}
function displayError(results, messages) {
alert("error in getResultData");
}
</script>
</head>
<body class="claro">
<div dojotype="dijit.layout.BorderContainer" design="headline" gutters="false" style="width: 100%; height: 100%; margin: 0;">
<div id="map" dojotype="dijit.layout.ContentPane" region="center" style="border:1px solid #000;padding:0;">
</div>
<div id='rightPane' dojotype='dijit.layout.ContentPane' region='right' style='width:400px;'>
<input type='button' onclick="getLuLc();" value ='Execute Task'/>
<div id='status'></div>
<div id='grid'></div>
</div>
</div>
</body>
</html>