Hogenakkal Integrated Drinking Water Project

The Tamil Nadu government has received a no objection certificate from the central government for the Hogenakkal drinking water scheme.[8] A similar agreement with the J. H. Patel led government of Karnataka in 1998 was based on the premise that both states won't obstruct drinking water schemes from Cauvery as long as the water drawn for such a project is sourced from the respective state's share of Cauvery water,[9] whose proceedings have been recorded. A copy of the letter given to the then Tamil Nadu Government Chief Secretary from the Union Ministry of Water Resources can be found here .[10]

The project is expected to cover 6,755 households in three municipal areas, 17 panchayats and 18 town panchayats, benefiting about three million people. Drinking water will be pumped to a master balancing reservoir at Madam, about 11 km from Hogenakkal. After treatment, water will be pumped for 145 km to cover areas such as Palakkodu, Marandahalli and Hosur in Tamil Nadu. Remaining areas in Krishnagiri and Dharmapuri districts will be covered by taking advantage of altitude gradient.[11]

In 1998, Karnataka agreed to abide by the conditions imposed by the Union Water Resources Ministry if Tamil Nadu withdrew its objections to the Cauvery water being used to augment supply to Bangalore, according to the minutes of a meeting convened by the Union Secretary (Water Resources) and attended by officers of the Cauvery basin States on drinking water supply schemes of Karnataka and Tamil Nadu on 29 June 1998.[12]

Chief Minister of Tamil Nadu, M. Karunanidhi laid the foundation stone for the project on 26 February 2008.

TN govt’s proposed project was undertaken in the Karanataka state’s revenue land. Also, TN government was not ready to abide by the earlier agreement as not to disrupt the drinking water projects. If TN government is ready to abide by the agreement and allow Karnataka government to proceed with its Mekedatu project, both these issues may find an end. Yeddiurappa, Chief Minister of Karnataka claimed that the proposed drinking water project site in Hogenakkal is situated in Karnataka and thus sparked controversy. Soon after Yeddiurappa's claim other political parties in Karnataka followed suit. The agitations that followed in Karnataka targeted the Tamils until the Assembly elections got over there.[13] As a result of the protests, Government of Tamil Nadu announced on 5 April 2008 that it will wait till a new government takes charge in Karnataka.[14] M Karunanidhi, the chief Minister of Tamil Nadu reportedly said, "the project will not be shelved".[15][16][17]

As a first step toward the implementation of the project, the unit office of the Hogenakkal water supply project was opened at Oddapatti near Dharmapuri on 17 June 2008.[18]

On Wednesday (29/05/2013) Chief Minister J Jayalalithaa launches the Hogenakkal Drinking Water Scheme through videoconferencing from Chennai.