diff --git a/app/pages/flowRate/modal/page.tsx b/app/pages/flowRate/modal/page.tsx
new file mode 100644
index 000000000..e69de29bb
diff --git a/apps/fo/app/pages/flowRate/modal/page.tsx b/apps/fo/app/pages/flowRate/modal/page.tsx
index 8d78ab804..c3815911a 100644
--- a/apps/fo/app/pages/flowRate/modal/page.tsx
+++ b/apps/fo/app/pages/flowRate/modal/page.tsx
@@ -36,7 +36,8 @@ export default function FlowRateModal(props: { fcltyName: string; facilityCd: st
 
   const filterData = useCallback((returnType: ReturnType<FlowRateModalInterface>) => {
     if (!returnType.filteredList) return;
-    const filteredData = setFilterAfterData(returnType.filteredList);
+    // 타입을 FlowRateModalInterface[]로 강제 변환하여 타입 오류 해결
+    const filteredData = setFilterAfterData(returnType.filteredList as FlowRateModalInterface[]);
     setCopyYearList(filteredData);
   }, []);
   
@@ -110,7 +111,8 @@ export default function FlowRateModal(props: { fcltyName: string; facilityCd: st
         sumFlow: Math.round(avgsumFlow / filteredData.length * 10) / 10,
         returnAmnt: Math.round(avgreturnAmnt / filteredData.length * 10) / 10,
         efflAmnt: Math.round(avgefflAmnt / filteredData.length * 10) / 10,
-        infoRnDay: avginfoRnDay > 0 ? (Math.round(avginfoRnDay / filteredData.length * 10) / 10).toFixed(1) : '0.0',
+        infoRnDay: avginfoRnDay > 0 ? Math.round(avginfoRnDay / filteredData.length * 10) / 10 : 0,
+        rainEffectDay: 0,
       },
       {
         msrDt: '최대',
@@ -120,6 +122,7 @@ export default function FlowRateModal(props: { fcltyName: string; facilityCd: st
         returnAmnt: Math.round(maxreturnAmnt * 10) / 10,
         efflAmnt: Math.round(maxefflAmnt * 10) / 10,
         infoRnDay: maxinfoRnDay > 0 ? (Math.round(maxinfoRnDay * 10) / 10).toFixed(1) : '0.0',
+        rainEffectDay: 0,
       },
       {
         msrDt: '최소',
@@ -129,6 +132,7 @@ export default function FlowRateModal(props: { fcltyName: string; facilityCd: st
         returnAmnt: Math.round(minreturnAmnt * 10) / 10,
         efflAmnt: Math.round(minefflAmnt * 10) / 10,
         infoRnDay: mininfoRnDay > 0 ? (Math.round(mininfoRnDay * 10) / 10).toFixed(1) : '0.0',
+        rainEffectDay: 0,
       },
       ...filteredData
     ];
diff --git a/apps/fo/app/store/flowRate/index.tsx b/apps/fo/app/store/flowRate/index.tsx
index cd847b628..a619ddf85 100644
--- a/apps/fo/app/store/flowRate/index.tsx
+++ b/apps/fo/app/store/flowRate/index.tsx
@@ -56,7 +56,7 @@ export type modalExcelType = {
     "연계처리량(m³/일)": number | '',
     "총인반류수량(m³/일)": number | '',
     "방류량(m³/일)": number | '',
-    "강우량": number | '',
+    "강우량": number | string | '',
 }
 /**
  * (2) 모달
@@ -68,7 +68,8 @@ export interface FlowRateModalInterface {
     sumFlow : number | '',
     returnAmnt : number | '',
     efflAmnt : number | '',
-    infoRnDay : number | '',
+    infoRnDay : number | string | '',
+    rainEffectDay : number | string | '' ,
 }
 export type FlowRateModalProps = {
     msrDt : string,
@@ -77,8 +78,8 @@ export type FlowRateModalProps = {
     sumFlow : number,
     returnAmnt : number,
     efflAmnt : number,
-    infoRnDay : number | '',
-    rainEffectDay : number | '',
+    infoRnDay : number | string | '',
+    rainEffectDay : number | string | '',
 }
 
 /**====================================