The Maharashtra Pollution Control Board report on samples taken after the Mahul oil leak on October 28 has revealed that floating oil in the creek close to the spot was below detectable levels. Oil and grease levels reported from the spot were 22mg/l at 100 m from the spot and 7.4mg/l at 500 m, said R R Vasave, sub-regional officer, MPCB.
“The dissolved oxygen was in the range of 3-5 km from the spot. This is normal,” Vasave added. The water samples were collected on November 8, according to MPCB officials. “We take samples every day and regularly monitor the clean-up operations conducted by the port trust,” the official said.
MPCB’s three monitoring spots are at Tata coal handling jetty, 2 km from the leakage spot, water pumping station (1.5 km away) and another spot 100 m away.
The Mumbai Port Trust has appointed Engineers India Limited to check the cause of rupture in the pipeline that lead to the leak. The preliminary report is expected in two-three days.