Maintenance of sewage treatment plants (STPs) is proving to be untenable for the Bangalore Water Supply and Sewerage Board (BWSSB), which has now urged the Department of Minor Irrigation to pay maintenance charges for the STPs.
More than half of the treated sewage is utilised by the Department of Minor Irrigation to fill lakes and tanks in Chikkaballapur, Anekal and Kolar in neighbouring districts.
The water board has 35 STPs in the Vrushabhavathi, Hebbal and Koramangala-Challaghatta valleys that treat 1,050 MLD.