diff --git a/apps/fo/app/pages/(with-layout)/facilityPrecipitation/page.tsx b/apps/fo/app/pages/(with-layout)/facilityPrecipitation/page.tsx
index c36386507..0d66de569 100644
--- a/apps/fo/app/pages/(with-layout)/facilityPrecipitation/page.tsx
+++ b/apps/fo/app/pages/(with-layout)/facilityPrecipitation/page.tsx
@@ -129,7 +129,7 @@ export default function FacilityPrecipitation() {
       initializeCommonData();
       searchFacilityPrecipitationList(1, 10, selectSearchYear[0]?.val || "0");
     }
-  }, [isInit, initializeCommonData, searchFacilityPrecipitationList]);
+  }, [isInit, initializeCommonData, searchFacilityPrecipitationList, selectSearchYear]);
 
   useEffect(() => {
     if (excelList && excelList.length > 0) {
diff --git a/apps/fo/app/pages/(with-layout)/flowRate/modal/page.tsx b/apps/fo/app/pages/(with-layout)/flowRate/modal/page.tsx
index 0685f93d6..87b398350 100644
--- a/apps/fo/app/pages/(with-layout)/flowRate/modal/page.tsx
+++ b/apps/fo/app/pages/(with-layout)/flowRate/modal/page.tsx
@@ -74,8 +74,7 @@ export default function FlowRateModal(props: { fcltyName: string; facilityCd: st
     let avgreturnAmnt = 0;
     let avgefflAmnt = 0;
     let avginfoRnDay = 0;
-
-    console.log('filteredData', filteredData);
+    
     filteredData.forEach((item: FlowRateModalInterface) => {
       const totInflAmnt = parseNumber(item.totInflAmnt);
       const inflAmnt = parseNumber(item.inflAmnt);
diff --git a/apps/fo/app/store/dashboard/index.tsx b/apps/fo/app/store/dashboard/index.tsx
index 94d848ae9..38cd9db4e 100644
--- a/apps/fo/app/store/dashboard/index.tsx
+++ b/apps/fo/app/store/dashboard/index.tsx
@@ -7,6 +7,7 @@ import DataForm from "@/app/components/common/DataForm";
 import { fetchPlanInfo, roundUp } from "../common";
 import type { FacilityWaterQltyProps } from "../facilityWaterQlty";
 import { calRainEffectDay, type ApiResponse, type FlowDataItem } from "../underWaterInput";
+import CalcRainEffect from "@/app/components/common/CalcRainEffect";
 
 // selectBox
 export type SelectDataType = {
@@ -999,55 +1000,6 @@ const searchWaterUsage = async (searchYear: string, fcltyCd: string) => {
     return waterUsage;
 }
 
-// 강우영향일 계산 및 강우량 덮어씌우기
-export const calRainEffectDayRainManage = (data: RainManageListProps[]) => {
-    
-    // 강우영향일 계산 (강우량이 3 초과이면 무조건 강우영향일)
-    for(let idx = 0; idx < data.length; idx++) {
-        const item = data[idx];
-        if(item){
-            if(item.infoRnDay && Number(item.infoRnDay) >= 3) {
-                item.rainEffectDay = 1;
-            } else {
-                item.rainEffectDay = 0;
-            }
-        }
-    }
-
-    // 이틀 전, 하루 전이 강우영향일(3 이상)인 경우 해당 날도 강우영향일로 설정
-    for(let idx = 0; idx < data.length; idx++) {
-        if(data[idx]) {
-            // 하루 전이 강우영향일(3 이상)인 경우
-            if(idx > 0 && data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay) >= 3) {
-                data[idx]!.rainEffectDay = 1;
-            }
-            // 이틀 전이 강우영향일(3 이상)인 경우
-            if(idx > 1 && data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay) >= 3) {
-                data[idx]!.rainEffectDay = 1;
-            }
-        }
-    }
-
-    for(let idx = 0; idx < data.length; idx++) {
-        if(data[idx] && data[idx]?.rainEffectDay === 1) {
-            if(idx > 1){
-                if(data[idx-1]?.infoRnDay && Number(data[idx]?.infoRnDay) < 3  && Number(data[idx-1]?.infoRnDay) >= 3) {
-                    data[idx]!.infoRnDay = data[idx-1]!.infoRnDay;
-                }
-            }
-            if(idx > 2){
-                if(data[idx-2]?.infoRnDay && Number(data[idx]?.infoRnDay) < 3 && Number(data[idx-2]?.infoRnDay) >= 3) {
-                    data[idx]!.infoRnDay = data[idx-2]!.infoRnDay;
-                }
-            }
-        }
-    }
-    
-    let rtnData : RainManageListProps[] = [];
-    rtnData = data.filter((item: RainManageListProps) => item.rainEffectDay === 1);
-    return rtnData;
-}
-
 export const dashBoardReducer:(set:(fn: (state: DashBoardType) => DashBoardType) => void)=>DashBoardActions=(set: (fn: (state: DashBoardType) => DashBoardType) => void) => {
     return {
         initializeDashBoardData: async () => {
@@ -1554,7 +1506,7 @@ export const dashBoardReducer:(set:(fn: (state: DashBoardType) => DashBoardType)
 
             // 청천시 중 강우영향일인 날짜는 이전의 강우량을 대입해 리스트 수정
 
-            const rainEffectList = calRainEffectDayRainManage(res.data.wqltObjs);
+            const rainEffectList = CalcRainEffect(res.data.wqltObjs);
             // Process the data and create rain management list
 
             const totItemCnt = rainEffectList?rainEffectList.length : 1;
diff --git a/apps/fo/app/store/facilityWaterQlty/index.tsx b/apps/fo/app/store/facilityWaterQlty/index.tsx
index 5b7bcf816..0eedb00a3 100644
--- a/apps/fo/app/store/facilityWaterQlty/index.tsx
+++ b/apps/fo/app/store/facilityWaterQlty/index.tsx
@@ -1,6 +1,7 @@
 import { getFetch } from "@/app/components/api";
 import DataForm from "@/app/components/common/DataForm";
 import type { TableUpperProps } from "../dashboard";
+import CalcRainEffect from "@/app/components/common/CalcRainEffect";
 export type { TableUpperProps };
 
 /**====================================
@@ -208,7 +209,7 @@ const upHeadListModalYear: TableUpperProps[] = [
     { id: "efflWqltSs", title: "SS\n(mg/L)", upName: "upChangeRe2", upSequnce: 3, align: "right" },
     { id: "efflWqltTn", title: "T-N\n(mg/L)", upName: "upChangeRe2", upSequnce: 2, align: "right" },
     { id: "efflWqltTp", title: "T-P\n(mg/L)", upName: "upChangeRe2", upSequnce: 3, align: "right" },
-    /* { id: "infoRnDay", title: "강우량(mm/일)", align: "right" }, */
+    { id: "infoRnDay", title: "강우량\n(mm/일)", align: "right" }
 ];
 
 // 처리시설 수질현황 헤더(모달-수질TMS)
@@ -573,49 +574,8 @@ export const facilityWaterQltyReducer = (set: (fn: (state: FacilityWaterQltyType
             }
 
             // facilityPrecipitation의 rainEffectDay 계산 로직을 적용
-
-            const data = res.data.wqltObjs;
-            // 강우영향일 계산 (강우량이 3 초과이면 무조건 강우영향일)
-            for(let idx = 0; idx < data.length; idx++) {
-                const item = data[idx];
-                if(item){
-                    if(item.infoRnDay && Number(item.infoRnDay) > 3) {
-                        item.rainEffectDay = 1;
-                    } else {
-                        item.rainEffectDay = 0;
-                    }
-                }
-            }
+            const data = CalcRainEffect(res.data.wqltObjs);
             
-            // 이틀 전, 하루 전이 강우영향일(3 이상)인 경우 해당 날도 강우영향일로 설정
-            for(let idx = 0; idx < data.length; idx++) {
-                if(data[idx]) {
-                    // 하루 전이 강우영향일(3 이상)인 경우
-                    if(idx > 0 && data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay) >= 3) {
-                        data[idx]!.rainEffectDay = 1;
-                    }
-                    // 이틀 전이 강우영향일(3 이상)인 경우
-                    if(idx > 1 && data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay) >= 3) {
-                        data[idx]!.rainEffectDay = 1;
-                    }
-                }
-            }
-
-            for(let idx = 0; idx < data.length; idx++) {
-                if(data[idx] && data[idx]?.rainEffectDay === 1) {
-                    if(idx > 1){
-                        if(data[idx-1]?.infoRnDay && Number(data[idx]?.infoRnDay) < 3  && Number(data[idx-1]?.infoRnDay) >= 3) {
-                            data[idx]!.infoRnDay = data[idx-1]!.infoRnDay;
-                        }
-                    }
-                    if(idx > 2){
-                        if(data[idx-2]?.infoRnDay && Number(data[idx]?.infoRnDay) < 3 && Number(data[idx-2]?.infoRnDay) >= 3) {
-                            data[idx]!.infoRnDay = data[idx-2]!.infoRnDay;
-                        }
-                    }
-                }
-            }
-
             const rtnData = data.map((item: FacilityWaterQltyProps) => {
                 dataFormSetting(item)
                 if(item.inflAssctBfrWqltTn) {
diff --git a/apps/fo/app/store/flowRate/index.tsx b/apps/fo/app/store/flowRate/index.tsx
index ec64465d0..011c08163 100644
--- a/apps/fo/app/store/flowRate/index.tsx
+++ b/apps/fo/app/store/flowRate/index.tsx
@@ -1,6 +1,7 @@
 import { getFetch } from "@/app/components/api";
 import type { TableUpperProps } from "../dashboard";
 import DataForm from "@/app/components/common/DataForm";
+import CalcRainEffect from "@/app/components/common/CalcRainEffect";
 
 /**====================================
  * Store - 타입
@@ -318,47 +319,7 @@ export const flowRateSearchReducer:(set:(fn: (state: FlowRateSearchType) => Flow
         },
         searchFlowRateModalList: async (bscFctCd: string, searchYear: string) => {
             const res = await fetchFlowRateModalList(bscFctCd, searchYear);
-            const data = res.data;
-            // 강우영향일 계산 (강우량이 3 초과이면 무조건 강우영향일)
-            for(let idx = 0; idx < data.length; idx++) {
-                const item = data[idx];
-                if(item){
-                    if(item.infoRnDay && Number(item.infoRnDay.toString().trim()) >= 3) {
-                        item.rainEffectDay = 1;
-                    } else {
-                        item.rainEffectDay = 0;
-                    }
-                }
-            }
-
-            // 이틀 전, 하루 전이 강우영향일(3 이상)인 경우 해당 날도 강우영향일로 설정
-            for(let idx = 0; idx < data.length; idx++) {
-                if(data[idx]) {
-                    // 하루 전이 강우영향일(3 이상)인 경우
-                    if(idx > 0 && data[idx-1]?.infoRnDay && Number(data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
-                        data[idx]!.rainEffectDay = 1;
-                    }
-                    // 이틀 전이 강우영향일(3 이상)인 경우
-                    if(idx > 1 && data[idx-2]?.infoRnDay && Number(data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
-                        data[idx]!.rainEffectDay = 1;
-                    }
-                }
-            }
-
-            for(let idx = 0; idx < data.length; idx++) {
-                if(data[idx] && data[idx]?.rainEffectDay === 1) {
-                    if(idx > 1){
-                        if(data[idx-1]?.infoRnDay && Number(data[idx]?.infoRnDay) < 3 && Number(data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
-                            data[idx]!.infoRnDay = data[idx-1]!.infoRnDay;
-                        }
-                    }
-                    if(idx > 2){
-                        if(data[idx-2]?.infoRnDay && Number(data[idx]?.infoRnDay) < 3 && Number(data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
-                            data[idx]!.infoRnDay = data[idx-2]!.infoRnDay;
-                        }
-                    }
-                }
-            }
+            const data = CalcRainEffect(res.data);
 
             const rtnData = data.map((item: FlowRateModalProps) => {
                 item.totInflAmnt = Number(item.inflAmnt || 0) + Number(item.sumFlow || 0) + Number(item.returnAmnt || 0)
diff --git a/apps/fo/app/store/sewageOccur/index.tsx b/apps/fo/app/store/sewageOccur/index.tsx
index 4a6d055f0..5645c89bc 100644
--- a/apps/fo/app/store/sewageOccur/index.tsx
+++ b/apps/fo/app/store/sewageOccur/index.tsx
@@ -1,6 +1,7 @@
 import DataForm from "@/app/components/common/DataForm";
 import type { TableUpperProps } from "../dashboard";
 import { getFetch } from "@/app/components/api";
+import CalcRainEffect from "@/app/components/common/CalcRainEffect";
 export type { TableUpperProps };
 /**====================================
  * Store - 타입
@@ -236,47 +237,9 @@ export const sewageOccurReducer:(set:any)=>SewageOccurActions=(set: any) => {
                 let totWaterUsage = 0;
 
                 // 강우영향일 계산 (강우량이 3 초과이면 무조건 강우영향일)
-                for(let idx = 0; idx < res2.data.length; idx++) {
-                    const item = res2.data[idx];
-                    if(item){
-                        if(item.infoRnDay && Number(item.infoRnDay.toString().trim()) >= 3) {
-                            item.rainEffectDay = 1;
-                        } else {
-                            item.rainEffectDay = 0;
-                        }
-                    }
-                }
-
-                // 이틀 전, 하루 전이 강우영향일(3 이상)인 경우 해당 날도 강우영향일로 설정
-                for(let idx = 0; idx < res2.data.length; idx++) {
-                    if(res2.data[idx]) {
-                        // 하루 전이 강우영향일(3 이상)인 경우
-                        if(idx > 0 && res2.data[idx-1]?.infoRnDay && Number(res2.data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
-                            res2.data[idx]!.rainEffectDay = 1;
-                        }
-                        // 이틀 전이 강우영향일(3 이상)인 경우
-                        if(idx > 1 && res2.data[idx-2]?.infoRnDay && Number(res2.data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
-                            res2.data[idx]!.rainEffectDay = 1;
-                        }
-                    }
-                }
-
-                for(let idx = 0; idx < res2.data.length; idx++) {
-                    if(res2.data[idx] && res2.data[idx]?.rainEffectDay === 1) {
-                        if(idx > 1){
-                            if(res2.data[idx-1]?.infoRnDay && Number(res2.data[idx]?.infoRnDay) < 3 && Number(res2.data[idx-1]?.infoRnDay.toString().trim()) >= 3) {
-                                res2.data[idx]!.infoRnDay = res2.data[idx-1]!.infoRnDay;
-                            }
-                        }
-                        if(idx > 2){
-                            if(res2.data[idx-2]?.infoRnDay && Number(res2.data[idx]?.infoRnDay) < 3 && Number(res2.data[idx-2]?.infoRnDay.toString().trim()) >= 3) {
-                                res2.data[idx]!.infoRnDay = res2.data[idx-2]!.infoRnDay;
-                            }
-                        }
-                    }
-                }
+                const rainEffectData = CalcRainEffect(res2.data);
                 
-                res2.data.forEach((item: FlowDataItem) => {
+                rainEffectData.forEach((item: FlowDataItem) => {
 
                     if(Number(item.rainEffectDay) === 0){
                         chungcunSumFlow += Number(item.inflAmnt);