(MENAFN - Muscat Daily) As the sewage network expands in the capital, and the volume of effluent water being treated rises, an increasing number of residents from areas such as Al Khuwayr, Ghala and Mawaleh have lodged complaints with Haya Water about the condition of roads.Trenches have been dug in tarmac to lay down pipelines for the treatment system and the quality of temporary repairs has irked residents.Eng Salim bin Awadh al Rubkhi, acting general manager, human resources, Haya Water, said that temporary road repair is carried out considering factors, like the type of location, urgency of reinstatement and mobilising asphalt sub-contractors.''Asphalt reinstatement sub-contractors normally do not show a readiness to mobilise for small reinstatement work and that's why the main contractor does the temporary reinstatement until a substantial asphalt reinstatement work front is available,'' he said.''The duration of each project is estimated to last three years and depends on the scope of work. In regards the asphalt reinstatement, it normally takes three to six months for permanent asphalt reinstatement."However, we are performing a temporary reinstatement for all cases within a month's time or less to avoid any inconvenience that might be caused by our constructions. But again, it varies from one contractor to another,'' said Rubkhi.''Our call centre is open to receive calls and complaints and we are keen to answer questions,'' he added.''I understand that some people are saying that the problem lies with sub-contractors who are cutting corners to save money, but it is a false statement because if the asphalt reinstatement is not done as per Haya standards, then the contractor does not get paid and we ask that the work be redone."Besides, we follow Muscat Municipality road reinstatement-approved sub-contractors so not all asphalt contractors can work on Haya projects,'' he clarified.