Dehradun's water supply system sources water from both groundwater and surface sources. Groundwater accounts for 76% of the city's total water supply of 102.51 MLD, while the remaining 24.54 MLD comes from various surface sources like the Bijapur Canal, Bandal River, and Kolhu khet springs. Water is treated at two treatment plants with a combined capacity of 34.54 MLD before being distributed throughout Dehradun via three zones - a gravity flow zone, pumping flow zone, and mixed flow zone. The average per capita supply is 124 liters per day, though supply rates vary in different parts of the city. Operation and maintenance of the water supply system is handled by

1. WATER SUPPLY
DEHRADUN
SEEMA RAWAT
(18BAC07)

4. Water Supply in Dehradun-
◦ First piped water supply in 1885 from Kolukhet springs situated about 25 km from Dehradun.
◦ Operated and maintained by Uttarakhand Jal Sansthan (UJS).
◦ Large capital works and overall planning are carried out by another corporation named as Uttarakhand Pey
Jal Nigam (UPJN).

5. Water Sources and / Generation of Water -
◦ Ground water is the main source.
◦ 76% of its total supply of 102.51MLD.
◦ The rest 24 % or about 24.54 MLD is
drawn from the various sources of
surface water.
◦ 57 tube wells of diameter varying
between 150 and 300 mm each about
120 m deep are supplying water to the
town. Present Availability of Water from Various Sources

6. Treatment of Water
◦ 2 water treatment plants (WTP) of capacity 20 and 14 MLD respectively.
◦ produce about 24.54 MLD.
◦ The WTP-1 at Dilaram Bazar is able to treat about 16 MLD as received from Bijapur Canal (10 MLD) and Bandal River (6
MLD).
◦ The WTP-2 at Sensai Ashram is able to treat about 8.54 MLD as received from Moussi fall (8 MLD) and Kolhu khet (0.54
MLD).
◦ The WTPs comprise of settling tanks and rapid sand gravity filters followed by chlorination.
◦ The ground water is supplied directly after chlorination.

7. Distribution System
◦ Three water supply zones-
 Gravity flow zone,
 Pumping flow zone
 Mixed flow zone.
◦ Northern part Rajpur Road and localities (Gravity flow zone)
◦ Southern part including old city (Pumping flow zone)
◦ These two zones and can be called as (Mixed flow zone )

11. Per Capita Water Supply
◦ 5,80,000 population of the town (including a floating population of 35,000) is about 72 MLD.
◦ The average per capita supply rate 124 litre per day.
◦ The supply rate varies throughout the town.

13. Operation and Maintenance
◦ Uttarakhand Jal Sansthan bears the responsibility.
◦ During the study, field visits were made and detailed discussion were held with consumers.

14. Summary of present status of water supply system of
Dehradun
Present Status of Dehradun Water Supply (2005-06)

15. THANK YOU