diff --git a/.vscode/settings.json b/.vscode/settings.json
index 2a4c0a2..71faa4d 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -28,11 +28,13 @@
     "srid",
     "tagname",
     "tailwindcss",
+    "tanstack",
     "topo",
     "ugrc",
     "usgs",
     "vite",
-    "wkid"
+    "wkid",
+    "wrimaps"
   ],
   "editor.codeActionsOnSave": {
     "source.organizeImports": "explicit"
diff --git a/package-lock.json b/package-lock.json
index 578d206..6fcef55 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,9 +10,11 @@
       "dependencies": {
         "@arcgis/core": "^4.30.9",
         "@heroicons/react": "^2.1.5",
+        "@tanstack/react-query": "^5.52.1",
         "@ugrc/layer-selector": "^6.2.7",
         "@ugrc/utah-design-system": "^1.4.1",
         "firebase": "^10.13.0",
+        "ky": "^1.7.1",
         "react": "^18.3.1",
         "react-aria": "^3.34.3",
         "react-aria-components": "^1.3.3",
@@ -22,6 +24,7 @@
       },
       "devDependencies": {
         "@eslint/js": "^9.9.0",
+        "@tanstack/eslint-plugin-query": "^5.52.0",
         "@types/eslint__js": "^8.42.3",
         "@types/react": "^18.3.4",
         "@types/react-dom": "^18.3.0",
@@ -3744,6 +3747,151 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@tanstack/eslint-plugin-query": {
+      "version": "5.52.0",
+      "resolved": "https://registry.npmjs.org/@tanstack/eslint-plugin-query/-/eslint-plugin-query-5.52.0.tgz",
+      "integrity": "sha512-i02fOM3TRURI46AswPNlKb4Gwu+/mAPssI+pVu0AifA7/qzOJRgco17vdqjq/VgChKLLIltd9/KI4MCJFFfWEw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@typescript-eslint/utils": "8.0.0-alpha.30"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      },
+      "peerDependencies": {
+        "eslint": "^8 || ^9"
+      }
+    },
+    "node_modules/@tanstack/eslint-plugin-query/node_modules/@typescript-eslint/scope-manager": {
+      "version": "8.0.0-alpha.30",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-8.0.0-alpha.30.tgz",
+      "integrity": "sha512-FGW/iPWGyPFamAVZ60oCAthMqQrqafUGebF8UKuq/ha+e9SVG6YhJoRzurlQXOVf8dHfOhJ0ADMXyFnMc53clg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@typescript-eslint/types": "8.0.0-alpha.30",
+        "@typescript-eslint/visitor-keys": "8.0.0-alpha.30"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      }
+    },
+    "node_modules/@tanstack/eslint-plugin-query/node_modules/@typescript-eslint/types": {
+      "version": "8.0.0-alpha.30",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.0.0-alpha.30.tgz",
+      "integrity": "sha512-4WzLlw27SO9pK9UFj/Hu7WGo8WveT0SEiIpFVsV2WwtQmLps6kouwtVCB8GJPZKJyurhZhcqCoQVQFmpv441Vg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      }
+    },
+    "node_modules/@tanstack/eslint-plugin-query/node_modules/@typescript-eslint/typescript-estree": {
+      "version": "8.0.0-alpha.30",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.0.0-alpha.30.tgz",
+      "integrity": "sha512-WSXbc9ZcXI+7yC+6q95u77i8FXz6HOLsw3ST+vMUlFy1lFbXyFL/3e6HDKQCm2Clt0krnoCPiTGvIn+GkYPn4Q==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "dependencies": {
+        "@typescript-eslint/types": "8.0.0-alpha.30",
+        "@typescript-eslint/visitor-keys": "8.0.0-alpha.30",
+        "debug": "^4.3.4",
+        "globby": "^11.1.0",
+        "is-glob": "^4.0.3",
+        "minimatch": "^9.0.4",
+        "semver": "^7.6.0",
+        "ts-api-utils": "^1.3.0"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@tanstack/eslint-plugin-query/node_modules/@typescript-eslint/utils": {
+      "version": "8.0.0-alpha.30",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-8.0.0-alpha.30.tgz",
+      "integrity": "sha512-rfhqfLqFyXhHNDwMnHiVGxl/Z2q/3guQ1jLlGQ0hi9Rb7inmwz42crM+NnLPR+2vEnwyw1P/g7fnQgQ3qvFx4g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@eslint-community/eslint-utils": "^4.4.0",
+        "@typescript-eslint/scope-manager": "8.0.0-alpha.30",
+        "@typescript-eslint/types": "8.0.0-alpha.30",
+        "@typescript-eslint/typescript-estree": "8.0.0-alpha.30"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      },
+      "peerDependencies": {
+        "eslint": "^8.57.0 || ^9.0.0"
+      }
+    },
+    "node_modules/@tanstack/eslint-plugin-query/node_modules/@typescript-eslint/visitor-keys": {
+      "version": "8.0.0-alpha.30",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.0.0-alpha.30.tgz",
+      "integrity": "sha512-XZuNurZxBqmr6ZIRIwWFq7j5RZd6ZlkId/HZEWyfciK+CWoyOxSF9Pv2VXH9Rlu2ZG2PfbhLz2Veszl4Pfn7yA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@typescript-eslint/types": "8.0.0-alpha.30",
+        "eslint-visitor-keys": "^3.4.3"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      }
+    },
+    "node_modules/@tanstack/query-core": {
+      "version": "5.52.0",
+      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.52.0.tgz",
+      "integrity": "sha512-U1DOEgltjUwalN6uWYTewSnA14b+tE7lSylOiASKCAO61ENJeCq9VVD/TXHA6O5u9+6v5+UgGYBSccTKDoyMqw==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      }
+    },
+    "node_modules/@tanstack/react-query": {
+      "version": "5.52.1",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.52.1.tgz",
+      "integrity": "sha512-soyn4dNIUZ8US8NaPVXv06gkZFHaZnPfKWPDjRJjFRW3Y7WZ0jx72eT6zhw3VQlkMPysmXye8l35ewPHspKgbQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@tanstack/query-core": "5.52.0"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19"
+      }
+    },
     "node_modules/@types/babel__core": {
       "version": "7.20.5",
       "resolved": "https://registry.npmjs.org/@types/babel__core/-/babel__core-7.20.5.tgz",
@@ -7295,11 +7443,10 @@
       }
     },
     "node_modules/ky": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/ky/-/ky-1.6.0.tgz",
-      "integrity": "sha512-MG7hlH26oShC4Lysk5TYzXshHLfEY52IJ0ofOeCsifquqTymbXCSTx+g4rXO30XYxoM6Y1ed5pNnpULe9Rx19A==",
+      "version": "1.7.1",
+      "resolved": "https://registry.npmjs.org/ky/-/ky-1.7.1.tgz",
+      "integrity": "sha512-KJ/IXXkFhTDqxcN8wKqMXk1/UoOpc0UnOB6H7QcqlPInh/M2B5Mlj+i9exez1w4RSwJhNFmHiUDPriAYFwb5VA==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=18"
       },
diff --git a/package.json b/package.json
index 7bfb708..9754d71 100644
--- a/package.json
+++ b/package.json
@@ -37,9 +37,11 @@
   "dependencies": {
     "@arcgis/core": "^4.30.9",
     "@heroicons/react": "^2.1.5",
+    "@tanstack/react-query": "^5.52.1",
     "@ugrc/layer-selector": "^6.2.7",
     "@ugrc/utah-design-system": "^1.4.1",
     "firebase": "^10.13.0",
+    "ky": "^1.7.1",
     "react": "^18.3.1",
     "react-aria": "^3.34.3",
     "react-aria-components": "^1.3.3",
@@ -49,6 +51,7 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.9.0",
+    "@tanstack/eslint-plugin-query": "^5.52.0",
     "@types/eslint__js": "^8.42.3",
     "@types/react": "^18.3.4",
     "@types/react-dom": "^18.3.0",
diff --git a/src/components/Filter.tsx b/src/components/Filter.tsx
index a9f3fb2..6db190b 100644
--- a/src/components/Filter.tsx
+++ b/src/components/Filter.tsx
@@ -1,15 +1,47 @@
 import FeatureLayer from '@arcgis/core/layers/FeatureLayer';
+import { useQuery } from '@tanstack/react-query';
 import { Button, Checkbox, CheckboxGroup, TextField } from '@ugrc/utah-design-system';
+import ky from 'ky';
 import { useEffect } from 'react';
+import config from '../config';
 import { useMap } from './hooks';
 
-const secureServiceUrl = import.meta.env.VITE_PROXY_URL;
+const emptyDefinition = '1=0';
 
-// TODO!: replace partial list with actual list
-const purpose = ['Depletion estimate', 'Mark-Recapture', 'Disease certification', 'Genetics', 'Other'];
+type DomainValue = {
+  name: string;
+  code: string;
+};
+type Field = {
+  name: string;
+  domain: {
+    codedValues: DomainValue[];
+  };
+};
+type FeatureLayerDefinition = {
+  fields: Field[];
+};
+
+async function getPurposes(): Promise<DomainValue[]> {
+  // TODO: this should probably come from env var
+  // if we do end up staying with the public service, then it will need to be published to the test server (wrimaps.at.utah.gov)
+  const url = 'https://wrimaps.utah.gov/arcgis/rest/services/Electrofishing/Public/MapServer/1?f=json';
+  const responseJson = (await ky(url).json()) as FeatureLayerDefinition;
+
+  const purposeField = responseJson.fields.find(
+    (field: Field) => field.name === config.fieldNames.events.SURVEY_PURPOSE,
+  );
+
+  if (!purposeField) {
+    throw new Error(`${config.fieldNames.events.SURVEY_PURPOSE} field not found in ${url}`);
+  }
+
+  return purposeField.domain.codedValues;
+}
 
 export default function Filter() {
   const { addLayers, mapView } = useMap();
+  const purposeQuery = useQuery({ queryKey: ['purposes'], queryFn: getPurposes });
 
   useEffect(() => {
     if (!mapView) {
@@ -17,8 +49,8 @@ export default function Filter() {
     }
 
     const stations = new FeatureLayer({
-      url: `${secureServiceUrl}/mapservice/0`,
-      id: 'stations',
+      url: 'https://wrimaps.utah.gov/arcgis/rest/services/Electrofishing/Public/MapServer/0',
+      definitionExpression: emptyDefinition,
     });
     addLayers([stations]);
   }, [addLayers, mapView]);
@@ -30,10 +62,10 @@ export default function Filter() {
         <div>
           <h3 className="text-lg font-semibold">Purpose</h3>
           <CheckboxGroup>
-            {purpose.map((p) => (
-              <div key={p} className="ml-2 flex gap-1">
-                <Checkbox type="checkbox" id={p} name={p} value={p} />
-                <label htmlFor={p}>{p}</label>
+            {purposeQuery.data?.map(({ name, code }) => (
+              <div key={code} className="ml-2 flex gap-1">
+                <Checkbox type="checkbox" id={code} name={code} value={code} />
+                <label htmlFor={code}>{name}</label>
               </div>
             ))}
           </CheckboxGroup>
diff --git a/src/config.js b/src/config.js
index 5c5ec81..1cb5f8f 100644
--- a/src/config.js
+++ b/src/config.js
@@ -3,6 +3,11 @@ const config = {
   WEB_MERCATOR_WKID: 3857,
   MARKER_FILL_COLOR: [234, 202, 0, 0.5],
   MARKER_OUTLINE_COLOR: [77, 42, 84, 1],
+  fieldNames: {
+    events: {
+      SURVEY_PURPOSE: 'SURVEY_PURPOSE',
+    },
+  },
 };
 
 export default config;
diff --git a/src/main.tsx b/src/main.tsx
index 9c9c6ac..b33ba8d 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -1,4 +1,5 @@
 import '@arcgis/core/assets/esri/themes/light/main.css';
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import React from 'react';
 import { createRoot } from 'react-dom/client';
 import { ErrorBoundary } from 'react-error-boundary';
@@ -34,14 +35,18 @@ const MainErrorFallback = ({ error, resetErrorBoundary }: { error: Error; resetE
   );
 };
 
+const queryClient = new QueryClient();
+
 createRoot(document.getElementById('root')!).render(
   <React.StrictMode>
     <ErrorBoundary FallbackComponent={MainErrorFallback} onReset={() => window.location.reload()}>
       <FirebaseAppProvider firebaseConfig={firebaseConfig}>
         <AnalyticsProvider>
-          <MapProvider>
-            <App />
-          </MapProvider>
+          <QueryClientProvider client={queryClient}>
+            <MapProvider>
+              <App />
+            </MapProvider>
+          </QueryClientProvider>
         </AnalyticsProvider>
       </FirebaseAppProvider>
     </ErrorBoundary>