Monaghan County Council constructed a 6.7 ha ICW in 2007 for the village of Glaslough. The ICW, located within the grounds of the Castle Leslie Estate, currently serves the village population of 1400 P.E, while also providing an area of amenity for the tourist based Estate.

The performance of the ICW at Glaslough is monitored regularly and removal efficiencies are high prior to discharge to the Mountain Water Stream.

Castle Leslie Estate view the ICW as “a contrast to traditional sewerage treatment works, which are designed to be cut-off from the public and wildlife.” They also see it as a concept that enhances the “water based theme inherent in the name “Glaslough”.”The ICW has been integrated as an amenity area that can be “enjoyed by guests of the estate and the equestrian centre.”