diff --git a/apps/wr/app/(map-layout)/service/map.ts b/apps/wr/app/(map-layout)/service/map.ts
index 326f10c75..0a5293d35 100644
--- a/apps/wr/app/(map-layout)/service/map.ts
+++ b/apps/wr/app/(map-layout)/service/map.ts
@@ -2,6 +2,8 @@
 /**
  * 관망도 API
  */
+import { SITE_ID } from "@/src/shared/config";
+
  const API_URL = `/sewerage-service/api/v1/map`
 //const API_URL = "http://con.mind-one.co.kr:11083/sewerage-service/api/v1/map";
 
@@ -35,6 +37,7 @@ export const mapService = {
       method: 'GET',
       headers: {
         'Accept': 'application/json',
+        'X-Site-Id': SITE_ID,
       },
     });
 
diff --git a/apps/wr/app/(popUp-layout)/splyPopup/service/map.ts b/apps/wr/app/(popUp-layout)/splyPopup/service/map.ts
index 605bae620..11d556468 100644
--- a/apps/wr/app/(popUp-layout)/splyPopup/service/map.ts
+++ b/apps/wr/app/(popUp-layout)/splyPopup/service/map.ts
@@ -3,6 +3,7 @@
  * 관망도 API
  */
  import { DEV_URL_WR, DEV_URL_SN } from "@/components/lib/config";
+import { SITE_ID } from "@/src/shared/config";
 
 export type LyrStngProps = {
   lyr_sn: string
@@ -34,6 +35,7 @@ export const mapService = {
       method: 'GET',
       headers: {
         'Accept': 'application/json',
+        'X-Site-Id': SITE_ID,
       },
     });
 
@@ -48,6 +50,7 @@ export const mapService = {
       method: 'GET',
       headers: {
         'Accept': 'application/json',
+        'X-Site-Id': SITE_ID,
       },
     });
 
diff --git a/apps/wr/app/(with-layout)/ruseFcltMng/prfmncSttn/pbnstPrfmncSttn/page.tsx b/apps/wr/app/(with-layout)/ruseFcltMng/prfmncSttn/pbnstPrfmncSttn/page.tsx
index a45344a67..34d4a4ffe 100644
--- a/apps/wr/app/(with-layout)/ruseFcltMng/prfmncSttn/pbnstPrfmncSttn/page.tsx
+++ b/apps/wr/app/(with-layout)/ruseFcltMng/prfmncSttn/pbnstPrfmncSttn/page.tsx
@@ -645,7 +645,7 @@ export default function PbnstPrfmncSttn() {
                                             selectArray={yearOptions}
                                             value={toDate}
                                             onSelectValue={(val: string | number) => setToDate(String(val))} />
-                                        <Label className="w-28 mt-2 text-xl">
+                                        <Label className="w-28 text-xl">
                                             {"시설명"}
                                         </Label>
                                         <SearchInput
diff --git a/apps/wr/app/store/map/splyPop/index.tsx b/apps/wr/app/store/map/splyPop/index.tsx
index a3fcba03b..7ea586e63 100644
--- a/apps/wr/app/store/map/splyPop/index.tsx
+++ b/apps/wr/app/store/map/splyPop/index.tsx
@@ -1,6 +1,7 @@
 import { getFetch } from "@/components/lib/api";
 import type { FacilityInfo, SubsInfo } from "./type";
 import { DEV_URL_FO } from "@/components/lib/config";
+import { SITE_ID } from "@/src/shared/config";
 
 const checkWrRegList = async () => {
   const wrRegList = await getFetch("wr", `/reuseFc/pubFc`);
@@ -26,6 +27,7 @@ const getRuseFclt = async (
     method: "POST",
     headers: {
       "Content-Type": "application/json",
+      "X-Site-Id": SITE_ID,
     },
     body: JSON.stringify(ruseList),
   });
diff --git a/apps/wr/app/store/ruseFcltMng/fcltReg/pbnstReg/index.tsx b/apps/wr/app/store/ruseFcltMng/fcltReg/pbnstReg/index.tsx
index b1ae27e1b..505d18557 100644
--- a/apps/wr/app/store/ruseFcltMng/fcltReg/pbnstReg/index.tsx
+++ b/apps/wr/app/store/ruseFcltMng/fcltReg/pbnstReg/index.tsx
@@ -6,6 +6,7 @@ import {
   postFectch,
   putFectch,
 } from "@/components/lib/api";
+import { SITE_ID } from "@/src/shared/config";
 import type { chHeadType } from "@/app/store/prfmncReg/chkgdnReg/rainChkgdn/headList";
 import {
   type customPbnst,
@@ -307,6 +308,7 @@ export const pubFacActionsExport: (set: any) => pubFacActions = (set: any) => {
             method: "GET",
             headers: {
               accept: "application/octet-stream",
+              "X-Site-Id": SITE_ID,
             },
           }
         );
diff --git a/apps/wr/components/lib/api/index.ts b/apps/wr/components/lib/api/index.ts
index aa257a71a..44eef5924 100644
--- a/apps/wr/components/lib/api/index.ts
+++ b/apps/wr/components/lib/api/index.ts
@@ -1,5 +1,5 @@
 import { DEV_URL_FO, DEV_URL_WR, LOCAL_URL } from "../config/";
-import { CLAIM_NAME } from "@/src/shared/config";
+import { CLAIM_NAME, SITE_ID } from "@/src/shared/config";
 import { tokenManager } from "@/src/entities/auth/lib/token-manager";
 
 export const fetchType = {
@@ -12,6 +12,11 @@ export const fetchType = {
 const LOGIN_PAGE_URL =
   process.env.NEXT_PUBLIC_CM_LOGIN_PAGE_URL || "/auth/login";
 
+const getDefaultHeaders = (headers: HeadersInit = {}) => ({
+  ...headers,
+  "X-Site-Id": SITE_ID,
+});
+
 const handleUnauthorizedResponse = () => {
   if (typeof window === "undefined") return;
 
@@ -43,9 +48,9 @@ export const getFetch = async (type: string, url: string) => {
   const apiUrl = div + url;
   const response = await fetch(apiUrl, {
     method: "GET",
-    headers: {
+    headers: getDefaultHeaders({
       accept: "application/json",
-    },
+    }),
   });
 
   if (response.status === 401) {
@@ -95,9 +100,9 @@ export const getFetchWithCount = async (type: string, url: string) => {
 
   const response = await fetch(apiUrl, {
     method: "GET",
-    headers: {
+    headers: getDefaultHeaders({
       accept: "application/json",
-    },
+    }),
   });
 
   if (response.status === 401) {
@@ -140,10 +145,10 @@ export const postFectch = async (url: string, params: any, type?: string) => {
   const apiUrl = div + url;
   const response = await fetch(apiUrl, {
     method: "POST",
-    headers: {
+    headers: getDefaultHeaders({
       accept: "application/json",
       "Content-Type": "application/json",
-    },
+    }),
     body: JSON.stringify(params),
   });
   if (response.status === 401) {
@@ -168,9 +173,9 @@ export const putFectch = async (url: string, params: any, type?: string) => {
 
   const response = await fetch(apiUrl, {
     method: "PUT",
-    headers: {
+    headers: getDefaultHeaders({
       "Content-Type": "application/json",
-    },
+    }),
     body: JSON.stringify(params),
   });
   if (response.status === 401) {
@@ -199,9 +204,9 @@ export const deleteFectch = async (
 
   const response = await fetch(apiUrl, {
     method: "DELETE",
-    headers: {
+    headers: getDefaultHeaders({
       "Content-Type": "application/json",
-    },
+    }),
     body: params ? JSON.stringify(params) : undefined,
   });
   if (response.status === 401) {
diff --git a/apps/wr/src/entities/auth/api/login-service.ts b/apps/wr/src/entities/auth/api/login-service.ts
index 9f2671c76..94be8b53f 100644
--- a/apps/wr/src/entities/auth/api/login-service.ts
+++ b/apps/wr/src/entities/auth/api/login-service.ts
@@ -20,6 +20,10 @@ export class LoginApiService implements LoginService {
       tokenManager.clearAuthToken();
       const response = await fetch( PROXY_HOST+ ENDPOINT.USER_SERVICE.LOGIN, {
         method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+          "X-Site-Id": SITE_ID,
+        },
         body: JSON.stringify({
           userId: payload.userId,
           password: payload.password,
@@ -52,7 +56,12 @@ export class LoginApiService implements LoginService {
     try {
       const response = await fetch(PROXY_HOST+
         `${ENDPOINT.USER_SERVICE.SILENT_REFRESH}`,
-        { method: "PUT" },
+        {
+          method: "PUT",
+          headers: {
+            "X-Site-Id": SITE_ID,
+          },
+        },
       );
 
       const data = await response.json();
diff --git a/apps/wr/src/features/auth/login/ui/OtpModal.tsx b/apps/wr/src/features/auth/login/ui/OtpModal.tsx
index 2c216faaf..e9db92308 100644
--- a/apps/wr/src/features/auth/login/ui/OtpModal.tsx
+++ b/apps/wr/src/features/auth/login/ui/OtpModal.tsx
@@ -1,5 +1,5 @@
 import { useState } from "react";
-import { ACCESS_TOKEN, AUTH_USER_ID, REFRESH_TOKEN, CLAIM_NAME } from "@/src/shared/config";
+import { ACCESS_TOKEN, AUTH_USER_ID, REFRESH_TOKEN, CLAIM_NAME, SITE_ID } from "@/src/shared/config";
 import { tokenManager } from "@/src/entities/auth/lib/token-manager";
 import {
   Button,
@@ -35,7 +35,10 @@ export default function OtpModal({ onClose, onSuccess, open, onOpenChange }: Otp
       // Proxy를 통해 OTP 인증 처리
       const response = await fetch(`/api/proxy/user-service/api/v1/auth/2fa/verify`, {
         method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
+        headers: {
+          'Content-Type': 'application/json',
+          'X-Site-Id': SITE_ID,
+        },
         body: JSON.stringify({
           otpCode: otp,
           tempToken
diff --git a/apps/wr/src/features/auth/login/ui/TwoFAModal.tsx b/apps/wr/src/features/auth/login/ui/TwoFAModal.tsx
index d66747b0c..4fb63931a 100644
--- a/apps/wr/src/features/auth/login/ui/TwoFAModal.tsx
+++ b/apps/wr/src/features/auth/login/ui/TwoFAModal.tsx
@@ -5,6 +5,7 @@ import {
   Dialog,
   DialogContent,
 } from "@common/components";
+import { SITE_ID } from "@/src/shared/config";
 
 interface TwoFAModalProps {
   onClose: () => void;
@@ -36,7 +37,10 @@ export default function TwoFAModal({ onClose, onSuccess, open, onOpenChange }: T
         // Proxy를 통해 2FA setup 처리
         const response = await fetch(`/api/proxy/user-service/api/v1/auth/2fa/setup`, {
           method: 'POST',
-          headers: { 'Content-Type': 'application/json' },
+          headers: {
+            'Content-Type': 'application/json',
+            'X-Site-Id': SITE_ID,
+          },
           body: JSON.stringify({ tempToken }),
         });
 
@@ -90,6 +94,7 @@ export default function TwoFAModal({ onClose, onSuccess, open, onOpenChange }: T
         headers: {
           'Content-Type': 'application/json',
           'Authorization': tempToken,
+          'X-Site-Id': SITE_ID,
         },
         body: JSON.stringify({
           otpCode: otp,