diff --git a/functions/src/functions/scraping-functions.ts b/functions/src/functions/scraping-functions.ts
index 01d8cc8..153a790 100644
--- a/functions/src/functions/scraping-functions.ts
+++ b/functions/src/functions/scraping-functions.ts
@@ -27,6 +27,8 @@ export async function scrapingsFunction(
 
     const responseCuencaCatalana = await embalsesRepository.actualizarCuencaCatalana();
 
+    const responseCuencaDuero = await embalsesRepository.actualizarCuencaDuero();
+
     if (responseCuencaMediterranea) {
       context.log(
         "scrapings-function: Se han actualizado los embalses de la cuenca Mediterránea",
@@ -52,6 +54,13 @@ export async function scrapingsFunction(
         "No se han podido actualizar los embalses de la cuenca Catalana"
       );
     }
+
+    if (responseCuencaDuero) {
+      context.log(`Se han actualizado los embalses de la cuenca Duero`);
+    } else {
+      context.log(
+        "No se han podido actualizar los embalses de la cuenca Duero")
+    }
   } catch (error) {
     context.error("scrapings-function: ERROR", error);
     throw error;
diff --git a/integrations/arcgis/src/embalse-provincias.ts b/integrations/arcgis/src/embalse-provincias.ts
index d431d4a..6e0b6a1 100644
--- a/integrations/arcgis/src/embalse-provincias.ts
+++ b/integrations/arcgis/src/embalse-provincias.ts
@@ -105,7 +105,7 @@ export const embalseProvincias = new Map<string, string>([
   ["castrelo", "Ourense"],
   ["castro", "Lugo"],
   ["castro-de-las-cogotas", "Ávila"],
-  ["castro-el", "Ourense"],
+  ["castro-el", "Zamora"],
   ["catllar", "Tarragona"],
   ["cavallers", "Lleida"],
   ["cazalegas", "Toledo"],
@@ -315,7 +315,7 @@ export const embalseProvincias = new Map<string, string>([
   ["san-anton", "Navarra"],
   ["san-bartolome", "Huelva"],
   ["san-clemente", "Huelva"],
-  ["san-jose", "Almería"],
+  ["san-jose", "Valladolid"],
   ["san-juan", "Madrid"],
   ["san-lorenzo", "Huelva"],
   ["san-martino", "Pontevedra"],
@@ -336,7 +336,7 @@ export const embalseProvincias = new Map<string, string>([
   ["sau", "Barcelona"],
   ["saucelle", "Salamanca"],
   ["sequeiros", "Ourense"],
-  ["serones", "Almería"],
+  ["serones", "Ávila"],
   ["sichar", "Huesca"],
   ["sierra-boyera", "Córdoba"],
   ["sierra-brava", "Cáceres"],
diff --git a/integrations/scraping-cuenca-duero/package.json b/integrations/scraping-cuenca-duero/package.json
index e85b0c2..3319786 100644
--- a/integrations/scraping-cuenca-duero/package.json
+++ b/integrations/scraping-cuenca-duero/package.json
@@ -3,14 +3,22 @@
   "version": "1.0.0",
   "private": true,
   "type": "module",
-  "exports": "./src/index.ts",
+  "exports": {
+    ".": "./dist/index.js"
+  },
+  "main": "./dist/index.js",
+  "types": "./dist/index.d.ts",
   "scripts": {
     "start": "tsx --watch ./src/console-runner.ts",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "build": "run-p clean type-check build:scraping-cuenca-duero",
+    "build:scraping-cuenca-duero": "tsc",
+    "clean": "rimraf dist",
+    "type-check": "tsc --noEmit --preserveWatchOutput"
   },
   "dependencies": {
     "axios": "^1.11.0",
-    "cheerio": "^1.1.2"
+    "cheerio": "^1.1.2",
+    "db-model": "^1.0.0"
   },
   "devDependencies": {
     "ts-node": "^10.9.2",
diff --git a/integrations/scraping-cuenca-duero/src/console-runner.ts b/integrations/scraping-cuenca-duero/src/console-runner.ts
index 1237c4d..790565e 100644
--- a/integrations/scraping-cuenca-duero/src/console-runner.ts
+++ b/integrations/scraping-cuenca-duero/src/console-runner.ts
@@ -1,4 +1,4 @@
-import { getEstadoCuencaDuero } from './integration';
+import { getEstadoCuencaDuero } from './integration.js';
 
 // We log a message in English to know what's happening
 console.log('Fetching status for Duero basin...');
diff --git a/integrations/scraping-cuenca-duero/src/index.ts b/integrations/scraping-cuenca-duero/src/index.ts
new file mode 100644
index 0000000..ba7a4ee
--- /dev/null
+++ b/integrations/scraping-cuenca-duero/src/index.ts
@@ -0,0 +1 @@
+export * from "./integration.js";
diff --git a/integrations/scraping-cuenca-duero/src/integration.test.ts b/integrations/scraping-cuenca-duero/src/integration.test.ts
index 191f670..1fa4079 100644
--- a/integrations/scraping-cuenca-duero/src/integration.test.ts
+++ b/integrations/scraping-cuenca-duero/src/integration.test.ts
@@ -2,7 +2,7 @@
 import { describe, it, expect, vi, type Mock } from "vitest";
 
 import axios from "axios";
-import { getEstadoCuencaDuero } from "./integration";
+import { getEstadoCuencaDuero } from "./integration.js";
 
 vi.mock("axios");
 
diff --git a/integrations/scraping-cuenca-duero/src/integration.ts b/integrations/scraping-cuenca-duero/src/integration.ts
index 861b673..b01945d 100644
--- a/integrations/scraping-cuenca-duero/src/integration.ts
+++ b/integrations/scraping-cuenca-duero/src/integration.ts
@@ -1,7 +1,6 @@
 // integration.ts (Versión Final Correcta)
 import axios from 'axios';
-import { EmbalseDuero } from './api/cuenca.model';
-import { parseReservoirsFromHtml, getCurrentDate, mapToEmbalseUpdateSAIH } from './scraper';
+import { parseReservoirsFromHtml, getCurrentDate, mapToEmbalseUpdateSAIH } from './scraper/index.js';
 import { EmbalseUpdateSAIHEntity } from "db-model";
 
 // Define the URL we are going to scrape
diff --git a/integrations/scraping-cuenca-duero/src/scraper/business.ts b/integrations/scraping-cuenca-duero/src/scraper/business.ts
index 83f583f..60b2e0f 100644
--- a/integrations/scraping-cuenca-duero/src/scraper/business.ts
+++ b/integrations/scraping-cuenca-duero/src/scraper/business.ts
@@ -1,4 +1,4 @@
-import { EmbalseDuero } from "../api/cuenca.model";
+import { EmbalseDuero } from "../api/cuenca.model.js";
 import { load } from "cheerio";
 
 // Función auxiliar para parsear string a number o null
diff --git a/integrations/scraping-cuenca-duero/src/scraper/index.ts b/integrations/scraping-cuenca-duero/src/scraper/index.ts
index bbb6227..4f25535 100644
--- a/integrations/scraping-cuenca-duero/src/scraper/index.ts
+++ b/integrations/scraping-cuenca-duero/src/scraper/index.ts
@@ -1,2 +1,2 @@
-export * from './business';
-export * from './mapper';
+export * from './business.js';
+export * from './mapper.js';
diff --git a/integrations/scraping-cuenca-duero/src/scraper/mapper.ts b/integrations/scraping-cuenca-duero/src/scraper/mapper.ts
index 79711ce..07f7a8d 100644
--- a/integrations/scraping-cuenca-duero/src/scraper/mapper.ts
+++ b/integrations/scraping-cuenca-duero/src/scraper/mapper.ts
@@ -1,4 +1,4 @@
-import { EmbalseDuero } from '../api/cuenca.model';
+import { EmbalseDuero } from '../api/cuenca.model.js';
 import { EmbalseUpdateSAIHEntity } from "db-model";
 
 /**
diff --git a/integrations/scraping-cuenca-duero/src/test-scraper.ts b/integrations/scraping-cuenca-duero/src/test-scraper.ts
index 7e681ab..2a13916 100644
--- a/integrations/scraping-cuenca-duero/src/test-scraper.ts
+++ b/integrations/scraping-cuenca-duero/src/test-scraper.ts
@@ -1,4 +1,4 @@
-import { getEstadoCuencaDuero } from './integration';
+import { getEstadoCuencaDuero } from './integration.js';
 
 (async () => {
   const data = await getEstadoCuencaDuero();
diff --git a/integrations/scraping-cuenca-duero/tsconfig.json b/integrations/scraping-cuenca-duero/tsconfig.json
index 48b9b22..ce7b1d4 100644
--- a/integrations/scraping-cuenca-duero/tsconfig.json
+++ b/integrations/scraping-cuenca-duero/tsconfig.json
@@ -1,20 +1,16 @@
 {
-	"compilerOptions": {
-		"target": "ES2020",
-		"module": "ESNext",
-		"moduleResolution": "bundler",
-		"skipLibCheck": true,
-		"isolatedModules": true,
-		"esModuleInterop": true,
-		"allowSyntheticDefaultImports": true,
-		"resolveJsonModule": true,
-		"outDir": "dist",
-		"baseUrl": "./",
-		"paths": {
-			"@/*": ["src/*"],
-			"@/api/*": ["src/api/*"],
-			"@/scraper/*": ["src/scraper/*"]
-		}
-	},
-	"include": ["src"]
+  "compilerOptions": {
+    "target": "ESNext",
+    "module": "nodenext",
+    "moduleResolution": "nodenext",
+    "outDir": "dist",
+    "skipLibCheck": true,
+    "isolatedModules": true,
+    "esModuleInterop": true,
+    "verbatimModuleSyntax": false,
+    "declaration": true,
+    "baseUrl": "./"
+  },
+  "include": ["src/**/*"],
+  "exclude": ["dist", "node_modules"]
 }
diff --git a/package-lock.json b/package-lock.json
index 077367b..f4df29c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -94,7 +94,8 @@
       "version": "1.0.0",
       "dependencies": {
         "axios": "^1.11.0",
-        "cheerio": "^1.1.2"
+        "cheerio": "^1.1.2",
+        "db-model": "^1.0.0"
       },
       "devDependencies": {
         "ts-node": "^10.9.2",
@@ -5853,6 +5854,7 @@
         "@types/prompts": "^2.4.9",
         "arcgis": "*",
         "prompts": "^2.4.2",
+        "scraping-cuenca-duero": "*",
         "scraping-cuenca-cantabrico": "*",
         "scraping-cuenca-mediterranea": "*"
       }
diff --git a/packages/db/package.json b/packages/db/package.json
index db901d6..e50e6af 100644
--- a/packages/db/package.json
+++ b/packages/db/package.json
@@ -32,6 +32,7 @@
     "prompts": "^2.4.2",
     "scraping-cuenca-mediterranea": "*",
     "scraping-cuenca-cantabrico": "*",
-    "scraping-cuenca-catalana": "*"
+    "scraping-cuenca-catalana": "*",
+    "scraping-cuenca-duero": "*"
   }
 }
diff --git a/packages/db/src/dals/embalses/embalses.mappers.ts b/packages/db/src/dals/embalses/embalses.mappers.ts
index 6beb3ba..3077cc5 100644
--- a/packages/db/src/dals/embalses/embalses.mappers.ts
+++ b/packages/db/src/dals/embalses/embalses.mappers.ts
@@ -73,3 +73,29 @@ export const mapperFromCuencasCatalanaToArcgis = new Map<
   [250753004, { nombre: "Sant Pons", idArcgis: 280 }],
 
 ]);
+
+// OJO Aguilar de Campoo, Cernadilla, Puente Porto, Ricobayo, Rábanos, Saucelle, Valparaíso, Las Vencías, Villagonzalo, Villalcampo, Nª Sª de Agavanzal, Aldeadávila, Almendra, Burgomillodo, Casares de Arbas, Aguilar, Serones, San José
+
+export const mapperFromCuencasDueroToArcgis = new Map<
+  number,
+  InfoDestinoArcgis
+>([
+  [1, { nombre: "Villameca", idArcgis: 344 }],
+  [2, { nombre: "Barrios de Luna", idArcgis: 42 }],
+  [3, { nombre: "Porma", idArcgis: 232 }],
+  [4, { nombre: "Riaño", idArcgis: 254 }],
+  [7, { nombre: "Camporredondo", idArcgis: 74 }],
+  [8, { nombre: "Compuerto", idArcgis: 105 }],
+  [11, { nombre: "Cervera-Ruesga", idArcgis: 98 }], // OJO puede ser Cervera
+  [12, { nombre: "La Requejada", idArcgis: 250 }],
+  [16, { nombre: "Arlanzón", idArcgis: 30 }],
+  [17, { nombre: "Úzquiza", idArcgis: 324 }],
+  [20, { nombre: "Cuerda del Pozo", idArcgis: 116 }],
+  [22, { nombre: "Linares del Arroyo", idArcgis: 185 }],
+  [23, { nombre: "El Pontón Alto", idArcgis: 375 }],
+  [26, { nombre: "Castro de las Cogotas", idArcgis: 86 }],
+  [28, { nombre: "Santa Teresa", idArcgis: 286 }],
+  [30, { nombre: "Irueña", idArcgis: 402 }],
+  [31, { nombre: "Águeda", idArcgis: 5 }],
+  [87, { nombre: "Castro", idArcgis: 26 }],
+])
diff --git a/packages/db/src/dals/embalses/embalses.repository.ts b/packages/db/src/dals/embalses/embalses.repository.ts
index 8bf3e51..02090da 100644
--- a/packages/db/src/dals/embalses/embalses.repository.ts
+++ b/packages/db/src/dals/embalses/embalses.repository.ts
@@ -1,9 +1,10 @@
 import { scrapeSeedEmbalses } from "arcgis";
 import { getEmbalsesContext } from "./embalses.context.js";
-import { mapperFromCuencasMediterraneaToArcgis, mapperFromCuencasCantabricoToArcgis, mapperFromCuencasCatalanaToArcgis } from "./embalses.mappers.js";
+import { mapperFromCuencasMediterraneaToArcgis, mapperFromCuencasCantabricoToArcgis, mapperFromCuencasCatalanaToArcgis, mapperFromCuencasDueroToArcgis } from "./embalses.mappers.js";
 import { scrapeCuencaMediterranea } from "scraping-cuenca-mediterranea";
 import { scrapeCuencaCantabrica } from 'scraping-cuenca-cantabrico';
 import { integracionCuencaCatalana } from 'scraping-cuenca-catalana';
+import { getEstadoCuencaDuero } from 'scraping-cuenca-duero';
 import { parseDate } from "./embalses.helpers.js";
 
 export const embalsesRepository = {
@@ -179,4 +180,57 @@ export const embalsesRepository = {
 
     return actualizados > 0;
   },
+  actualizarCuencaDuero: async (): Promise<boolean> => {
+    const embalsesDuero = await getEstadoCuencaDuero();
+
+    console.log(
+      `Se han scrapeado ${embalsesDuero.length} embalses de la Cuenca Mediterránea`
+    );
+
+    let actualizados = 0;
+    let noEncontrados = 0;
+    let sinMapper = 0;
+
+    for (const embalse of embalsesDuero) {
+      const infoDestino = mapperFromCuencasDueroToArcgis.get(embalse.id);
+
+      if (!infoDestino) {
+        sinMapper++;
+        console.warn(`Sin mapper para ID ${embalse.id} - ${embalse.nombre}`);
+        continue;
+      }
+
+      console.log(
+        `🔍 Mapeando: ID scraping ${embalse.id} -> _id BD ${infoDestino.idArcgis} (${infoDestino.nombre})`
+      );
+
+      const { matchedCount } = await getEmbalsesContext().updateOne(
+        { _id: infoDestino.idArcgis.toString() },
+        {
+          $set: {
+            aguaActualSAIH: embalse.aguaActualSAIH,
+            fechaMedidaAguaActualSAIH: parseDate(embalse.fechaMedidaSAIH),
+          },
+        }
+      );
+
+      if (matchedCount > 0) {
+        actualizados++;
+        console.log(
+          `Actualizado: ${infoDestino.nombre} (_id: ${infoDestino.idArcgis}) -> ${embalse.aguaActualSAIH} hm³`
+        );
+      } else {
+        noEncontrados++;
+        console.warn(
+          `No encontrado en BD: _id ${infoDestino.idArcgis} - ${infoDestino.nombre}`
+        );
+      }
+    }
+
+    console.log(
+      `Resumen Cuenca Duero: ${actualizados} actualizados, ${noEncontrados} no encontrados, ${sinMapper} sin mapper`
+    );
+
+    return actualizados > 0;
+  }
 };