diff --git a/apps/fo/app/store/sewageOccur/index.tsx b/apps/fo/app/store/sewageOccur/index.tsx
index 5651fed64..748610767 100644
--- a/apps/fo/app/store/sewageOccur/index.tsx
+++ b/apps/fo/app/store/sewageOccur/index.tsx
@@ -144,7 +144,7 @@ const tempSewageOccurList:modalTableType[] = []
 //     return res;
 // }
 
-// 시설정보 RDII 상세 [{BOD - inflAssctBfrWqltBod, 유입유량 inflAmnt,  강우량 infoRnDay, 측정일 msrDt}] 
+// 시설들 유량 정보 조회 
 export const fetchSweageOccurListFlow = async (searchYear: string|undefined, fcltCdList: string[]): Promise<SewageOccurProps | null> => {
     try {
         const res = await postFetch('fo', '/fclt/flow/'+searchYear, fcltCdList);
@@ -154,6 +154,17 @@ export const fetchSweageOccurListFlow = async (searchYear: string|undefined, fcl
         return null;
     }
 };
+// 시설별 물사용량 정보 조회
+export const fetchWtrUsgListFlow = async (searchYear: string|undefined, fcltCdList: string[]): Promise<SewageOccurProps | null> => {
+    try {
+        const res = await postFetch('fo', '/fclt/flow/wtrUsg/'+searchYear, fcltCdList);
+        return res;
+    } catch (error) {
+        console.error('시설정보 물사용량 데이터를 가져오는데 실패했습니다:', error);
+        return null;
+    }
+
+};
 
 /**====================================
  * Store - expaort
@@ -291,8 +302,11 @@ export const sewageOccurReducer:(set:any)=>SewageOccurActions=(set: any) => {
             });
             
             const soccurDetailRes : any = await fetchSweageOccurListFlow(searchYear, fcltCdList);
-            console.log(soccurDetailRes);
-
+            const wtrUsgRes : any = await fetchWtrUsgListFlow(searchYear, fcltCdList);            
+            const wtrUsgMap : Record<string, number> = {};
+            wtrUsgRes.data.forEach(fclt => {
+                wtrUsgMap[fclt.bscFctCd] = fclt.wtrUsg;
+            });
             for (const item of sewageOccurPropsList) {
                 
                 const detailList = soccurDetailRes?.data[item.bscFctCd]
@@ -319,7 +333,9 @@ export const sewageOccurReducer:(set:any)=>SewageOccurActions=(set: any) => {
 
                 const count = detailList ? detailList.length : 0;
                 const avg = count == 0 ? 0 : totWaterUsage / count; // 일평균 유입량
-                item.waterUsage = parseFloat((avg * 0.65).toFixed(2));  // 물사용량 = 일평균 유입량 * 65%
+                if(wtrUsgMap && wtrUsgMap[item.bscFctCd]) {
+                    item.waterUsage = wtrUsgMap[item.bscFctCd];
+                } else {item.waterUsage = parseFloat((avg * 0.65).toFixed(2));}  // 물사용량 = 일평균 유입량 * 65%
                 item.sewageInputYear = parseFloat(avg.toFixed(2));      // 연간 하수유입량(m³/일)
                 item.sewageInputChungchun = parseFloat((chungcunSumFlow===0?0:(chungcunSumFlow / sumChungcunDay)).toFixed(2)); // 청천시 하수유입량
                 item.estimationSewage = parseFloat((item.waterUsage * (item.swageChangePercent/100)).toFixed(2)); // 오수발생량 추정(m³/일)