Hepworth has been supplying HDPE Geomembranes for stormwater applications since 2009. In October 2014, Corys Geosynthetics, the new business unit for geosynthetics products,  supplied 2 mm double-sided smooth blue HDPE liners and 350gsm white non-woven geotextiles for phase 1 of the ASHGHAL lagoon project through EKRON Enterprises Qatar. The liner, together with the geotextiles, were installed by Al Gazal Business Solutions.

The project called for the construction of a stormwater pond for an area of 64,000 sqm using an HDPE geomembrane as a primary layer, supported by 350gsm geotextile as a protective layer. The main application of this stormwater pond is to control overbank floods.

The pond is highly aesthetic as the colour of the liner is blue. This special blue geomembrane contains a mix of antioxidants and UV stabilizers, in order to prevent the liners from UV degradation.