diff --git a/apps/fo/app/store/sewageOccur/index.tsx b/apps/fo/app/store/sewageOccur/index.tsx
index 748610767..c4da47ca7 100644
--- a/apps/fo/app/store/sewageOccur/index.tsx
+++ b/apps/fo/app/store/sewageOccur/index.tsx
@@ -334,7 +334,7 @@ export const sewageOccurReducer:(set:any)=>SewageOccurActions=(set: any) => {
                 const count = detailList ? detailList.length : 0;
                 const avg = count == 0 ? 0 : totWaterUsage / count; // 일평균 유입량
                 if(wtrUsgMap && wtrUsgMap[item.bscFctCd]) {
-                    item.waterUsage = wtrUsgMap[item.bscFctCd];
+                    item.waterUsage = wtrUsgMap[item.bscFctCd] ?? 0;
                 } 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