India, May 9 -- In a push for groundwater conservation, the Delhi Government is working on a policy for use of treated sewage water in construction works and irrigation of parks, officials said on Friday.

Water from sewage treatment plants (STPs) operated by the Delhi Jal Board (DJB) and Delhi Development Authority (DDA) is already used extensively for horticulture purposes.

Delhi Public Works and Water Minister Parvesh Sahib Singh said a policy is being framed by the DJB for ensuring that large quantity of treated water from STPs could be utilised in activities where use of potable water is unnecessary.

The DJB is actively promoting use of treated effluent and around 89 million gallons per day (MGD) is supplied for non-potable purpose...