Effluent sewer and treatment system solve wastewater crisis

摘要

In 2007, the picturesque community of Piopio, New Zealand, was on the verge of a wastewater crisis. Located in a valley on alluvial soils, frequent rainfall and poor drainage create a high water table, especially in wintertime. These conditions, combined with septic tanks in excess of 30 years old, meant that nearly all soakage fields, also called drainfields, were failing. With a population of less than 400, Piopio is home to a surprising assortment of retail attractions and services, including a museum, several bed and breakfast establishments, the award-winning Fat Pigeon Cafe, and an 18-hole golf course north of town.