FRAZ_PACE Wastewater Treatment Plant, Pace, Pescorocchiano, Lazio, Italy

FRAZ_PACE is a wastewater treatment plant located in the Pace locality of Pescorocchiano, in the province of Rieti, Lazio, Italy. It serves a small population of 150 residents, reflecting its role in a rural or small community setting within the Apennine region. The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 200 m³/day and an actual discharge volume of 29.70 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Tiber River basin and then into the Tyrrhenian Sea. The advanced treatment level helps protect the sensitive karstic aquifers and downstream ecosystems in the Lazio region, supporting water quality in the Tiber River and its tributaries.

The plant discharges into the local drainage network that feeds the Tiber River basin, a major watercourse in central Italy flowing into the Tyrrhenian Sea. The area is characterized by karstic geology and sensitive groundwater resources. The advanced treatment ensures minimal nutrient and pollutant loading, protecting downstream aquatic habitats and the ecological integrity of the Tiber River and its coastal receiving waters.