Gov'ts LOVE EPAZ...Western Racine County Sanitary District Treatment Facilities, to seek methods to control costs. EPAZ SW is used by Western Racine County Sanitary District Treatment Facilities, to seek methods to control costs.And Based on the changes to operating procedures future savings of over $17,000 per year are being achieved. Based on the calculated savings the initial investment in the EPAZ EnergyVIEW system installation will be paid for in four months. And it was!!!