PTOLEMAIDA
Πτολεμαΐδα, Αποκεντρωμένη Διοίκηση Ηπείρου - Δυτικής Μακεδονίας
Ptolemaida wastewater treatment plant serves approximately 28,000 people in Ptolemaida, Greece. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.