Treatment for excess water from STP

Hi, We have a capacity of one lac ltr of STP installed in the building. The STP is working in good condition, but we are facing an issue. The output of STP is one lac ltr per day but the usage of the same can be done in 2 areas, i.e. flushing and gardening. 40,000 ltr is used in the above areas. Where to put the rest 60,000 ltr water? Where the rest of water can be consumed? What measures can be taken with the rest 60,000 treated water? It can be used in increasing groundwater levels too? Thanks