Water Drainage

Barapukuria Coal mine is situated under the water bearing layer (aquifer). The average thickness of the water bearing Dupi-Tila formation is around 107m and situated above the coal bearing Gondwana layer. Dupi-Tila formation is fully saturated by water. Besides this enough water is available in the coal bearing Gondwana formation also. The mine water mainly coming from those above layers during development and production period through of the mine by different fracture, fissure, faults, Dykes and damaged Gob area. At present, the toral water discharging from Barapukuria coal mine is around 2367m3/hr

There are two sumps and pump station in underground of the Barapukuria coal mine, One is at -260m level and another at -430m level. The water bearing capacity of -260m level sump is 5000m3 and capacity of -430m level is 7000m3. The mine water accumulated into the sumps during producton and development period and after that mine water discharged on the surface by planned management of 13 no. of pump.

The present scenario of the mine water inflow is given below-

Date                                       Water Discharge(m3/hr)

5 May 2014                           1782

15 May 2014                         2098

25 May 2014                         2071

5 June 2014                          2109

15 June 2014                        1942

25 June 2014                        2114

5 July 2014                           2033

15 July 2014                         2046

25 July 2014                         2030

5 August 2014                      2017

15 August 2014                    2008      

25 August 2014                    2002

5 September 2014                2011

15 September 2014              2017

25 September 2014              2009

5 October 2014                    2009

15 October 2014                  1995      

25 October 2014                  1996

5 November 2014                1986

15 November 2014              1983

25 November 2014              1986

5 December 2014                1988

15 December 2014              1989

25 December 2014              1991

5 January 2015                   1990

15 January 2015                 2002

25 January 2015                 2020

5 February 2015                 2022

15 February 2015               2039

25 February 2015               2018