operation of piped water supply schemes by deploying pump operators and payment of electricity charges and comprehensive operation and maintenance, routine repairs and special repairs of rural piped water supply scheme (pws) ward level piped water supply schemes in non quality affected wards (wls_non quality) i/c the cost of chemicals, overhauling of filter media and related appurtenances, cleaning of esr and campus, maintenance viz. cleaning painting of pump house, staff quarters, boundary wall, repair of leakages in distribution line, repair and provision of new fhtcs, repair and maintenance of pumps and other electromechanical components etc. all complete as per the directions of engineer-in-charge.