Environment

Without much fanfare but certainly with a great deal of hope today afternoon we released the Salvinia weevil in two spots at the lake still infested with Salvinia Molesta. Salvinia weevils from Thrissur Releasing the weevils, 3rd June 2013 From the time Dr. Subramanya, UAS, Bangalore identified it last September, this invasive fern has been the bane of our lake. When the water level receded to mere puddles, the Salvinia began to dry in large tracts. We got it removed manually through BBMP's workers. Very many resident volunteers living around the lake pitched in strongly on several weekends. When it seemed…

The heavy rains on 31st May - 1st June helped raise the water level in several parts of Puttenahalli Lake by upto about 16 inches. With this about 65-75% of the lake bed is under water. We're waiting for a few more similar downpours to bring the level higher.  The Lake, 1st June 2013 (Pic: Usha Rajagopalan)The rains also cooled the place making the gardening weekend thoroughly enjoyable for all the volunteers. Over the two mornings, starting at 7 a.m., about 50 people coming from various parts of the city, helped in digging pits, planting shrubs, cleaning (plastics and other litter)…

Several of the visitors to the lake, have marveled at how the level has gone up in just two or three days of pre-monsoon showers. The reason of course is that the rain has been heavy this year and more because, for the first time, some of the surface run off from the Brigade Millennium road is getting diverted into the lake through the new conduit. The story doesn't end here.Visitors would have seen the enormous iron frame that was getting assembled on the ground between the security cabin and the gazebo. Thick iron rods have been placed over the…

The heavy rains on 31st May - 1st June helped raise the water level in several parts of Puttenahalli Lake by upto about 16 inches. With this about 65-75% of the lake bed is under water. We're waiting for a few more similar downpours to bring the level higher.  The Lake, 1st June 2013 (Pic: Usha Rajagopalan)The rains also cooled the place making the gardening weekend thoroughly enjoyable for all the volunteers. Over the two mornings, starting at 7 a.m., about 50 people coming from various parts of the city, helped in digging pits, planting shrubs, cleaning (plastics and other litter)…

Several of the visitors to the lake, have marveled at how the level has gone up in just two or three days of pre-monsoon showers. The reason of course is that the rain has been heavy this year and more because, for the first time, some of the surface run off from the Brigade Millennium road is getting diverted into the lake through the new conduit. The story doesn't end here.Visitors would have seen the enormous iron frame that was getting assembled on the ground between the security cabin and the gazebo. Thick iron rods have been placed over the…

BBMP has taken up the rejuvenation of upstream lakes in the chain of seven lakes, of which Kaikondrahalli Lake is located just before Soulkere. A few months ago, the contractors had started to dewater the upstream lakes, which meant the sewage water present in these lakes had to be pumped out. Unfortunately diversion pipes were not in place at Kaikondarahalli lake so this polluted water was getting into our rejuvenated lake. So dewatering work was suspended to build the channels, and later the election code of conduct delayed the work further. With dewatering work restarted, we suddenly found that the…

BBMP has taken up the rejuvenation of upstream lakes in the chain of seven lakes, of which Kaikondrahalli Lake is located just before Soulkere. A few months ago, the contractors had started to dewater the upstream lakes, which meant the sewage water present in these lakes had to be pumped out. Unfortunately diversion pipes were not in place at Kaikondarahalli lake so this polluted water was getting into our rejuvenated lake. So dewatering work was suspended to build the channels, and later the election code of conduct delayed the work further. With dewatering work restarted, we suddenly found that the…

Based on a total station survey done by Enzen Global in Aug. 2011, PNLIT got the BBMP to install a  new diversion channel (DC) to harvest surface run off from the Brigade Millennium road into the lake. After some unavoidable delays, complicated government procedures, worker issues, etc. the major DC was finally completed a month ago.The intermittent drizzle over the past couple of weeks indicated that the DC could work but we were not sure just how well it would till the downpour last night. Glimpses of the lake lit by lightning last night were exciting, raising our hope that…

Based on a total station survey done by Enzen Global in Aug. 2011, PNLIT got the BBMP to install a  new diversion channel (DC) to harvest surface run off from the Brigade Millennium road into the lake. After some unavoidable delays, complicated government procedures, worker issues, etc. the major DC was finally completed a month ago.The intermittent drizzle over the past couple of weeks indicated that the DC could work but we were not sure just how well it would till the downpour last night. Glimpses of the lake lit by lightning last night were exciting, raising our hope that…

Fencing complete! The fencing work at Kaikondarahalli lake has been completed, under tight security. We wish to thank everyone at the BBMP who made this possible -- BBMP Commissioner Siddaiah, Chief Conservator of Forest Brijesh Kumar, Chief Engineer Lakes B V Satish, Forest Department Official Jagannath Rao and BBMP Environment Engineer Shilpa. A special thank you to the contractor on the ground, Madesh, who was enormously efficient in completing the work. Fencing finally finished under tight security. The fence ensures that the lake land won't get encroached illegally and the safety and the security at the lake has increased manifold.…