Sassoferrato Via Cagli Dep Wastewater Treatment Plant, Sassoferrato, Italy

Sassoferrato Via Cagli Dep is a municipal wastewater treatment plant located in Sassoferrato, a town in the Marche region of central Italy. The plant serves a small population of 235 residents, reflecting its role in a rural or small-town setting. It is situated on Via Cagli, within the province of Ancona. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The directive mandates secondary treatment for all discharges from agglomerations with a population equivalent (PE) above 2,000, but smaller plants like this one are also expected to meet appropriate treatment standards to protect local water quality. The treated effluent from the plant is discharged into the local watershed, which ultimately drains into the Adriatic Sea via the Esino River or its tributaries. The Marche region is characterized by hilly terrain and a Mediterranean climate, with rivers that support diverse aquatic ecosystems. Proper treatment at this plant helps protect downstream water quality and the ecological health of the Adriatic coastal zone.

The plant discharges into the local watershed of the Esino River basin, which flows eastward into the Adriatic Sea near the city of Ancona. The Adriatic Sea is a semi-enclosed basin with sensitive marine ecosystems, including seagrass meadows and fish nursery areas. The secondary treatment provided by the plant reduces organic pollutants and suspended solids, helping to maintain water quality in the river and coastal environment.