City centre regeneration schemes on contaminated former industrial sites have been going on for more than 20 years - and Terry Dean has been there almost from the beginning.
His rst major clean-up project was for the Meadowhall Shopping Centre in Sheffield.
Twenty years later Dean is overseeing the delivery of a 'single design and construct remediation solution' at Celtic Technologies, where he recently became engineering director.
Clients such as Shell, BP, British Gas and major developers in the regeneration sector have become tired of dealing with so many different agencies when cleaning up sites.
The role involves pulling together expertise in many areas and Dean - after a career in land reclamation at consultant Bingham & Blades (now part of Mott MacDonald) and then the Woodford Group - is just the man to do it.
'Ground remediation accounts for only 20% of cleaning up the site, ' he says. 'There is also demolition, removal of asbestos, removing old foundations, drainage, new land forms, retaining walls, water supply and even removing Japanese knotweed, ' he says.
And for young engineers wondering what path to take in the profession, Dean recommends getting involved in a sector that is becoming ever more interesting. This is because the traditional catch-all solution of simply dumping contaminated soil into landfill is no longer viable due to the prohibitive cost.
'There is more focus now on site remediation because digand-dump methods are no longer financially viable, ' he says, adding that as a result more than 150 bioremediation technologies have been developed.
And at Celtic, Dean is at the cutting edge of techniques that have developed to the point whereby soil can be bioremediated during the winter in just 10 weeks.
So at 59, his enthusiasm is undimmed. 'Every project I work on presents unique challenges.
There is no panacea, ' he says.
However, Dean warns that if you really want to work in this sector you have got to have patience because waiting for planning permission can take a long time and it's getting longer.
'Getting planning can take anything up to 18 months, ' he says.
Terry Dean Career highlights: Turning industrial wastelands into viable new developments.
Career lowlights: Working at BNFL in the 1980s under a matrix management style!
What would you grab if your house was on fire? Family records and photos.
Unusual fact: I'm a qualified masseur and a rock guitarist.