diff --git a/html/static/js/map-proxied-arcgis-tile.js b/html/static/js/map-proxied-arcgis-tile.js
index f41cc785..4d26f179 100644
--- a/html/static/js/map-proxied-arcgis-tile.js
+++ b/html/static/js/map-proxied-arcgis-tile.js
@@ -106,7 +106,7 @@ class MapProxiedArcgisTile extends HTMLElement {
 			});
 		});
 		for (const on of this._preOns) {
-			this._map.on(on.a, on.b);
+			this._map.on(...on);
 		}
 	}
 
@@ -134,11 +134,11 @@ class MapProxiedArcgisTile extends HTMLElement {
 	jumpTo(args) {
 		return this._map.jumpTo(args);
 	}
-	on(a, b) {
+	on(...args) {
 		if (this._map != null) {
-			return this._map.on(a, b);
+			return this._map.on(...args);
 		} else {
-			this._preOns.push({ a: a, b: b });
+			this._preOns.push(args);
 		}
 	}
 	once(a, b) {
diff --git a/html/template/sync/review/pool.html b/html/template/sync/review/pool.html
index 738e69fc..fa2d7975 100644
--- a/html/template/sync/review/pool.html
+++ b/html/template/sync/review/pool.html
@@ -137,6 +137,31 @@
 								popup.remove();
 							});
 						});
+						const map_tile = document.querySelector("map-proxied-arcgis-tile");
+						map_tile.on("load", () => {
+							map_tile.addLayer({
+								id: "parcel",
+								minzoom: 14,
+								paint: {
+									"line-color": "#0f0",
+								},
+								source: "tegola",
+								"source-layer": "parcel",
+								type: "line",
+							});
+							map_tile.addLayer({
+								id: "pools",
+								paint: {
+									"circle-color": "#0D6EfD",
+									"circle-radius": 7,
+									"circle-stroke-width": 2,
+									"circle-stroke-color": "#024AB6",
+								},
+								source: "tegola",
+								"source-layer": "feature-pool",
+								type: "circle",
+							});
+						});
 					});
 					await this.fetchTasks();
 				},