Encouraging Water Cluster Growth by Center for Irrigation Technology (PP1). Maintaining Water Wells Like New…Is This Good Enough? by Aegis Groundwater Consulting, LLC (PP2). Fresno Water Division by the City of Fresno Water Division (PP3). Enteric Virus Removal from Conventional Wastewater Treatment Plants and Insights Into Direct Potable Reuse by Fresno State Department of Public Health (PP4). The Water Cluster is sponsored in part by a grant from the Fresno Regional Workforce Investment Board and managed by the International Center for Irrigation Technology (ICWT).