Chandigarh  is fully covered with sewerage facility and provided with the 100% sewerage treatment facility. Out of 87 MGD water being supplied to the residents of the city, 57 MGD sewage effluent is being generated per day. Out of which, average 53.85 MGD waste water is treated everyday.


Municipal Population 

10.54 Lacs

     Volume of Domestic & Industrial Waste Water    Generated

57 MGD (Approx.)

Treated waste water

53.85 MGD

No. of STPs

5

Capacity of Each STP

16 MGD    – 3 BRD

 

5 MGD    – Raipur Kalan

 

30 MGD  – Diggian

 

1.25 MGD – Raipur Khurd

 

1.6 MGD   – Dhanas

 

Total : 53.85 MGD

Proposed STPs

1.7 MGD at Khuda-ali-sher.

 

15 MGD is under renovation at          

 

Diggian, Mohali.

 

Total: 16.7 MGD

Mode of Disposal

Natural Choe for all except Diggian. Diggian STP effluent goes to Irrigation Channel



Recognizing the importance of water, Chandigarh had, earlier in 1991, initiated tertiary treatment of  wastewater at Diggian STP (10 MGD) and later supplied it for the non-potable uses such as irrigation of gardens, green belts & lawns, washing cars etc, to different sectors. Presently, the installed capacity for tertiary treatment is 20 MGD at Diggian STP which is treating 10 MGD water (avg.), however,  the present demand of tertiary treated water is 6 MGD. As per new bylaws the use of tertiary treated water has been made mandatory for all houses having area of 1 kanal or more. At present, tertiary treated water is available for use in sector 1, 4, 5, 6, 7, 9, 12, 15, 16, 18, 19, 20, 21 & 61; whereas sectors 2, 3, 8, 10, 11, 14, 17, 23, 25, 33, 34, 37, 41 and 42 are provided with the partial availability of the same.     

Source: CPCC,Chandigarh