diff --git a/src/pages/Home.tsx b/src/pages/Home.tsx
index 69c63f2..373c3b3 100644
--- a/src/pages/Home.tsx
+++ b/src/pages/Home.tsx
@@ -14,7 +14,7 @@ import { getAuditLogs, type AuditLog } from "../api/audit";
 import { fetchNotifications, type Notification } from "../api/notifications";
 import { getAllUsers, type User } from "../api/users";
 import { fetchProjects, type Project } from "../api/projects";
-import { getCurrentUserRole } from "../api/auth";
+import { getCurrentUserRole, getCurrentUserProjectId } from "../api/auth";
 import type { Page } from "../App";
 import grhWatermark from "../assets/images/grhWatermark.png";
 
@@ -55,6 +55,7 @@ export default function Home({
 }) {
   
   const userRole = useMemo(() => getCurrentUserRole(), []);
+  const userProjectId = useMemo(() => getCurrentUserProjectId(), []);
   const isOperator = userRole?.toUpperCase() === 'OPERATOR';
   const isAdmin = userRole?.toUpperCase() === 'ADMIN';
 
@@ -166,6 +167,12 @@ export default function Home({
   }, []);
 
   const filteredMeters = useMemo(() => {
+    // If user is OPERATOR, always filter by their assigned project
+    if (isOperator && userProjectId) {
+      return meters.filter((m) => m.projectId === userProjectId);
+    }
+    
+    // For ADMIN users with organism selector
     if (selectedOrganism === "Todos") {
       return meters;
     }
@@ -176,7 +183,7 @@ export default function Home({
     }
     
     return meters.filter((m) => m.projectId === selectedUser.project_id);
-  }, [meters, selectedOrganism, users]);
+  }, [meters, selectedOrganism, users, isOperator, userProjectId]);
 
   const filteredProjects = useMemo(
     () => [...new Set(filteredMeters.map((m) => m.projectName))].filter(Boolean) as string[],
@@ -184,6 +191,13 @@ export default function Home({
   );
 
   const selectedUserProjectName = useMemo(() => {
+    // If user is OPERATOR, get their project name
+    if (isOperator && userProjectId) {
+      const project = projects.find(p => p.id === userProjectId);
+      return project?.name || null;
+    }
+    
+    // For ADMIN users with organism selector
     if (selectedOrganism === "Todos") return null;
     
     const selectedUser = users.find(u => u.id === selectedOrganism);
@@ -191,9 +205,18 @@ export default function Home({
     
     const project = projects.find(p => p.id === selectedUser.project_id);
     return project?.name || null;
-  }, [selectedOrganism, users, projects]);
+  }, [selectedOrganism, users, projects, isOperator, userProjectId]);
 
   const chartData = useMemo(() => {
+    // If user is OPERATOR, show only their project
+    if (isOperator && selectedUserProjectName) {
+      return [{
+        name: selectedUserProjectName,
+        meterCount: filteredMeters.length,
+      }];
+    }
+    
+    // For ADMIN users
     if (selectedOrganism === "Todos") {
       return filteredProjects.map((projectName) => ({
         name: projectName,
@@ -211,7 +234,7 @@ export default function Home({
     }
     
     return [];
-  }, [selectedOrganism, filteredProjects, filteredMeters, selectedUserProjectName]);
+  }, [selectedOrganism, filteredProjects, filteredMeters, selectedUserProjectName, isOperator]);
 
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   const handleBarClick = (data: any) => {
diff --git a/water-api/src/services/project.service.ts b/water-api/src/services/project.service.ts
index 11916c1..7e4aa68 100644
--- a/water-api/src/services/project.service.ts
+++ b/water-api/src/services/project.service.ts
@@ -236,11 +236,21 @@ export async function update(id: string, data: UpdateProjectInput): Promise<Proj
 
 /**
  * Delete a project by ID
- * Checks for dependent meters/concentrators before deletion
+ * Checks for dependent meters/concentrators/users before deletion
  * @param id - Project UUID
  * @returns True if deleted, throws error if has dependencies
  */
 export async function deleteProject(id: string): Promise<boolean> {
+  const userCheck = await query<{ count: string }>(
+    'SELECT COUNT(*) as count FROM users WHERE project_id = $1',
+    [id]
+  );
+  const userCount = parseInt(userCheck.rows[0]?.count || '0', 10);
+
+  if (userCount > 0) {
+    throw new Error(`Cannot delete project: ${userCount} user(s) are assigned to this project`);
+  }
+
   // Check for dependent meters
   const meterCheck = await query<{ count: string }>(
     'SELECT COUNT(*) as count FROM meters WHERE project_id = $1',