Water quality KPIs-CS1 NATMed

Database on the physico-chemical and microbiological quality of treated wastewater across the different units of the treatment train at CS1, Spain, during the period from October 2023 to September 2025. The main treatment units monitored are: pre-treatment, Imhoff tank, three vertical subsurface flow Constructed Wetlands (CW), one horizontal subsurface flow CW, one surface flow CW, one areated vertical-horizontal CW, one vertical-French model CW, three floating macrophytes CWs, storage pond, filtration system, floating gardens and tank with ultrasound treatment.