Hyderabad: Principal secretary, municipal administration, Arvind Kumar found during an inspection on Friday that a unit of the 20 million litres a day (MLD) sewage treatment plant (STP) at Khairatabad had not been working for one-and-a-half years.
Because of this, semi-treated sewage was entering the Hussainsagar lake. One of the tertiary treatment units, the membrane filtration section, had not been working, Mr Kumar found.
The Supervisory Control and Data Acquisition (SCADA) was also not being used because of maintenance issues, he found during his inspection aimed at cleaning up the Hussainsagar.
Mr Kumar instructed HMDA chief engineer B.L.N. Reddy to immediately float tenders inviting companies to handle comprehensive operation and maintenance of three STPs and 10 interception and diversion structures for three years at an estimate cost of `47 crore. He immediately cleared the file on the e-procurement platform. He directed the chief engineer to constitute a committee to examine the bid documents to ensure that the discharge standards comply with those specified originally.
Mr Reddy briefed Mr Kumar on the facilities created under the project to clean up the Hussainsagar such as the 30 MLD STP on Picket Nala, 5 MLD STP at Rangadhamini Cheruvu in Kukatpally and 10 interception and diversion structures constructed across the four nalas to divert dirty water away from the Hussainsagar.
Mr Kumar checked the data on treated water quality, test reports and design parameters of the STPs along with the recycled and reused treated water which is being used at NTR Garden, Sanjeevaiah Park and landscapes along Necklace Road.