Opening hours of Sewage treatment plant in Napperby, South Australia Opening hours of Sewage treatment plant in Napperby, South Australia Home / South Australia / Napperby / Sewage treatment plant Sewage treatment plant Napperby CWMS Napperby SA 5540, Napperby, South Australia 5540 Categories of local businesses in Napperby Blinds shop Camp Caravan Park Carpet cleaning service Gas Station General Contractor Home & Gardens Home Goods Store House cleaning service Industry & Agriculture Laundry Park Primary school Satellite communication service School Sewage treatment plant State School Upholstery shop