Siruvani water position improving

COIMBATORE: Though there has been heavy drawal of drinking water from the Siruvani Dam during the World Classical Tamil Conference (June 23-27), moderate rainfall is helping in improving the situation now, Mayor R. Venkatachalam said on Tuesday.

Rain God's blessing:Rain helps in maintaining a comfortable water level in Siruvani Dam.

There was no heavy rain in the catchments during the conference period, but whatever was given by the South West Monsoon enabled the Coimbatore Corporation draw 80 million litres a day, as against the 62 mld to 70 mld prior to the monsoon setting in, the Mayor said.

“This is why we are able to supply Siruvani water to some eastern and northern wards in the city that face shortage under the Pilloor Scheme,” he pointed out.

From 20.34 ft (as against the full reservoir level of nearly 51 ft) on June 24, the water level in the dam dipped to 19.35 ft on June 29.

“With lakhs of people visiting the conference venue, there was a huge need for drinking water,” the Mayor explained. “Now, whatever the monsoon offers will increase the level steadily as there will be less pressure on the supply front,” he said.

The Mayor also said: “We have already restored the alternate day supply. This points at the comfortable situation we are in.

Between June 24 and 29, the catchments received rainfall ranging from 3 mm to 16 mm.

The monsoon is expected to turn vigorous in the first or second week of July. There will be further improvement in the supply position,” he said.

The Mayor assured the people in the city that the last anxiety-filled summer was over.

“The Pilloor Phase II scheme will be completed before the next summer and the city will have enough water from three schemes: Siruvani, Pilloor I and Pilloor II. The Bhavani and Aliyar schemes for the suburbs will remove the pressure on these schemes,” he said.


Water level rises in Siruvani Dam

It has risen by nearly six feet over the last couple of days

COIMBATORE: The Coimbatore Corporation sounded relieved on Monday with the news that the water level in Siruvani Dam had risen by nearly six feet over the last couple of days.

Rain effect:Siruvani Dam, one of the two main sources of drinking water for Coimbatore city. File Photo: K. Ananthan

“The South-West Monsoon is providing us with fairly good rain over the last three days. We need this to avoid scarcity of drinking water during the World Classical Tamil Conference next week,” Mayor R. Venkatachalam said. The dam recorded 50 mm, 85 mm and 82 mm rain on Saturday, Sunday and Monday respectively. (The recording is till 8.30 a.m. on all these days.) “We got reports of heavy rain throughout the day on Monday also.”

From 12.79 ft (as against the full reservoir level of 50.85 ft) on Saturday the level rose to 18.70 ft at 8.30 a.m. on Monday. “It is still rising as there is good inflow from the falls and streams,” the Mayor said. On June 14 last year, the water level was only 6.79 ft, he said.

The June 10-14 period last year saw the level remaining in the 6.75 ft to 7.5 ft range.


Siruvani supply in city once in four days from June 1

COIMBATORE: The Coimbatore Corporation announced on Wednesday that drinking water under the Siruvani scheme would be supplied only once in four days from June 1.


Corporation Commissioner Anshul Mishra said in a press release that the civic body would revert to the alternate day supply once the monsoon set in over the Siruvani catchment and the Siruvani Dam filled up.

The once-in-four-days supply would be made in the following wards: West Zone: 34, 35, 48, 49, 50, 51, 52, 53 and 55 to 64. South Zone: 25, 27, 28, 36 to 47 and 54. North Zone: 30 to 33.

The Corporation has appealed to the residents in these wards to use drinking water only for cooking and drinking in order to avoid scarcity.


Signs of rain at Siruvani Dam

The dam recorded 3 mm rainfall till 8.30 a.m. on Thursday

COIMBATORE: On Thursday, cautious optimism ran through the Tamil Nadu Water Supply and Drainage Board and the Coimbatore Corporation as a thick cloud cover formed over the Siruvani Dam and the catchment.

The dam recorded 3 mm rain till 8.30 a.m. on Thursday and 5 mm on Wednesday.

REASSURING:With more water than last year and a thick cloud cover, officials claim that things are looking up at Siruvani Dam.

This was attributed to the cyclone in the Bay of Bengal. But, the authorities said it was not time yet to conclude that the hot and dry spell was over.

The cyclone impact would be over any moment and the Siruvani scheme would have to count only on the South West Monsoon.

Water supply officials said what lent hope now was the news of the monsoon moving towards Kerala. Heavy rain in some parts of Palakkad District in Kerala (where the dam and catchment are located) indicated that things would improve in terms of water supply. The hope now was that the monsoon would set in over the catchment in the last week of May or in the first week of June.

Both the water board and the civic body were into hectic arrangements for smooth water supply during the World Classical Tamil Conference to be held here from June 23 to 27.

In this context, the setting in of the monsoon even in the first week of June would be a timely rescue act.

“The good news now is that Siruvani Dam has more water as on May 20, than in the last 10 years,” Executive Engineer of the water board P. Gopalakrishnan said.

The level on Thursday stood at nearly 19 ft, as against the full reservoir level of nearly 60 ft. It was only 11.28 ft last year.

Between 2000 and 2004, the level hit dead storage twice. Good summer showers, a low pressure in the Bay of Bengal and early setting in of the South West Monsoon turned things around in April-May 2004.

A string of austerity measures ensured judicious use of drinking water and prevented the level from plummeting to dead storage.

Readings available with the Corporation pointed out that in 2006 and 2008, the water level was beyond the 18 ft mark, though not to the level this year.

The water level in the dam now was enough for a comfortable supply, official sources said.


Coimbatore: Rain improves storage in PAP reservoirs

Coimbatore: Though not a torrential downpour as it was in the last couple of days, intermittent showers have been improving the storage in the Parambikulam Aliyar Project reservoirs. Rain continues in the Western Ghats, especially in the catchments of the PAP as well as in Siruvani and Pilloor.

In Sholayar, the dam level stood at 151.88 ft as against the Full Reservoir Level (FRL) of 160 with the inflow at 599 cusecs and outflow at 634 cusecs and rainfall at 33 mm. In Parambikulam, the storage was 71.90 ft as against the FRL of 72 and inflow was 680 cusecs and discharge was 680 cusecs and rainfall was 19 mm. Aliyar had a storage of 119.70 against an FRL of 120 ft and inflow was 748 cusecs and discharge was 829 cusecs while rainfall was 1.6 mm.

Thirumurthy had a storage of 44.28 ft as against the FRL of 60 ft and the inflow was 114 cusecs while the discharge was 14 cusecs and rainfall 3 mm. Thirumurthy had a storage of 79.60 ft as against the FRL of 90 ft and inflow stood at 3,164 ft and discharge was 7 cusecs and rainfall 2 mm.

The Water Resource Organisation (WRO) of the Public Works Department have already commenced the works for removal of the boulder and sand from the Aliyar Feeder canal as well as the breached Contour Canal. The access road to the breach site of the Canal Road is also almost ready for reaching men and materials. The works are expected to be speeded up once the rain stops.

In Coimbatore, Siruvani dam registered a rainfall of 22 mm while the foothills registered 18 mm and the dam continued to surplus at 878.5 ft. The surplus continued in Pilloor also.


Tamilnadu: Coimbatore-Drinking water supply position comfortable

Corporation confident of managing till next South West Monsoon 

Water continues to overflow from Siruvani Dam

Rain in September and this month has kept the dam full

COIMBATORE: Good yield from the South West Monsoon, heavy rain because of a low-pressure last month and the forecast of a normal North-East Monsoon have provided hopes of a comfortable drinking water supply in the city during summer next year.

The Coimbatore Corporation is confident of managing the summer till the next South West Monsoon in June 2010.

Rainfall at Siruvani Dam

Rainfall at Siruvani Dam

What the South West Monsoon provides this year holds the key to supply from the Siruvani Dam.


Water continues to overflow from the dam and this offers the hope of a good supply during summer, according to water supply officials in the Corporation.

Tamil Nadu Water Supply and Drainage Board officials say the withdrawal from the dam now is 98 million litres a day, with the city getting more than 80 million litres.

The South West Monsoon had been good enough this time to ensure comfortable supply till March.

More rain in September and this month has kept the dam full.

The dam recorded 110 mm rain on October 3.

If the North-East Monsoon rainfall is as forecast, the Siruvani scheme will not be a source of concern for the Corporation.

The present storage will be enough for the city over the next six to eight months. And, more rain is expected till the end of November.

This will ensure a smooth sail during summer, Corporation officials say. But, the suburbs have no respite as they have to manage with a meagre allocation of Siruvani water.

The supply is still once in 10 or even 15 days in Kavundampalayam and even once in 15 to 20 days in Veerkeralam.

The situation in the Pilloor Dam is also comfortable, they say.

The dam is full and more rain is expected in the catchments. The daily drawal is 125 million litres, out of which the Coimbatore Corporation gets around 65 million litres.


Coimbatore Railway Junction lacks safe drinking water supply

Coimbatore: Despite being the second largest revenue spinner next only to Chennai, passengers leaving and arriving Coimbatore Junction are provided only with bore well water drawn from Valankulam for drinking, as the Junction is yet to get Siruvani water supply.

The railway station fetches a daily revenue of Rs. 30 lakh and an annual revenue of Rs 110 crores through passenger and freight charges. Enquiries revealed that the Southern Railway approached the civic body one-and-a-half years back for a water supply connection, with a request that they need close to one lakh litres of water a day. Then, the civic body had asked the railway authorities to wait till the water scarcity gets over. Thereafter, efforts were never pursued for getting a connection.

Coimbatore Junction

Coimbatore Junction

The railway authorities are at present sourcing water from a bore well sunk near Valankulam, a polluted water body. The water drawn from Valankulam was supplied through 62 taps at the railway station. Earlier, there was a water pipeline at the Coimbatore Junction with a supply of 5,000 litres a day.

Owing to lack of facilities to store water, the connection became useless. Medical and Sanitation wing officials at the Coimbatore Junction said that though the water is drawn from the bore well, adequate attention was being paid to treat the water and make it safer for the public use. But, the same was being disputed and challenged by activists who have subjected the water for laboratory examination.

Considering the present storage level in Siruvani reservoir, Southern Railway authorities have renewed their efforts and are on the job of applying for a “bulk” water supply connection besides construction of tanks for storage.