Luxembourg Browse regions with water & wastewater management location pages. Capellen 1 cities Clervaux 1 cities Diekirch 1 cities Echternach 1 cities Esch-sur-Alzette 3 cities Grevenmacher 1 cities Luxembourg 1 cities Mersch 1 cities Redange 1 cities Remich 1 cities Vianden 1 cities Wiltz 1 cities