In 1986, the Mines Drainage Unit (MDU) was based at Westfield House, Westfield Road, Parkgate, Rotherham, telephone no. 0709 522145.
It was managed by Jack Brennan, a First Class certified manager (no.7671).
The MDU was responsible for the following locations and facilities under the South Yorkshire Area, athough sites came under different NCB Inspectorates (given in [] below:
- Barbot Hall Borehole, Greasbrough, Rotherham [North Yorkshire District]
- Birley East Pumping Station, Stone Lane, Woodhouse, Sheffield [S.Y.]
- Car House Pumping Station, Car House near Rotherham [S.Y.]
- Crigglestone Pumping Station, Crigglestone, Wakefield [N.Y.]
- Durkar Pumping Station, Crigglestone, Wakefield [N.Y.]
- Elsecar Pumping Station, Elsecar, Barnsley [S.Y.]
- Flockton Lane End Pumping Station Bar Lane, Flockton [N.Y.]
- Greenland Pumping Station, Wombwell, Barnsley, [S.Y.]
- Handsworth Borehole, Handsworth, Sheffield [S.Y.]
- Handsworth Pumping Station, Handsworth, Sheffield [S.Y.]
- Haw Park Shaft Pumping Station, Walton, Wakefield [N.Y.]
- Hemingfield Pumping Station, Hemingfield, Barnsley [S.Y.]
- Lepton Edge Pumping Station, Lepton Edge, Huddersfield [N.Y.]
- Low Stubbin Pumping Station, Rawmarsh, Rotherham [S.Y.]
- Lundwood Borehole, Barnsley, [N.Y.]
- Mitchell Main Pumping Station, Wombwell, Barnsley [N.Y.]
- New Monckton No 4 Pumping Station, South Hiendley, Barnsley, [N.Y.]
- New Monckton No 6 Pumping Station, Royston, near Barnsley, [N.Y.]
- Nunnery Pumping Station, Sheffield [S.Y.]
- Orchard Lane Borehole, Beighton, Sheffield, [S.Y.]
- Rockingham Pumping Station, Birdwell, Barnsley [N.Y.]
- Rockley Borehole, Barnsley [N.Y.]
- Strafford Pumping Station, Gilroyd, Barnsley [N.Y.]
- Tankersley Park Pumping Station, Tankersley, nr Barnsley [N.Y.]
- Thorpe Pumping Station, Thorpe Hesley, near Rotherham [N.Y.]
- Waleswood Pumping Station, Waleswood, Sheffield [S.Y.]
- Walton No 3 Pumping Station, Walton, Wakefield [N.Y.]
- Westfield Pumping Station, Parkgate, Rotherham [S.Y.]
- Wharncliffe Silkstone Pumping Station, Pilley, Barnsley [N.Y.]
- Wharncliffe Woodmoor No.3 Pumping Station, Carlton, Barnsley [N.Y.]
- Woolley Barnsley Pumping Station, Woolley Edge Lane, Carlton, Barnsley [N.Y.]
Source: Sansom, B. (ed.) Guide to the Coalfields, Surrey: Colliery Guardian, 1986, pp.93-94