Since its inception 25 years ago it has donated more than $100 million.
"I see donations as a hand-up, not a hand-out.
"It's about seeding the dreams and aspirations of communities," Mr Lea said.
He said a good example of that was the donation the trust made towards establishing the Bush Multi Sports Trust, a major sports hub for Tararua and neighbouring districts.
Mr Lea said the trust supported volunteers who worked within communities and acknowledged there was pressure on a diminishing number of volunteers.
"It's a major issue, particularly in rural communities, where the skill base of volunteers is decreasing as the overall volunteer numbers drop.
"There is a high burn-out among the people who are repeatedly called on," he said.
Mr Lea left Tararua District Council in 2010 when he decided not to seek re-election as a councillor and to just stand for the mayoralty.
He was unsuccessful, with the mayoralty being won by Roly Ellis and his former role of deputy was taken up by southern ward councillor Bill Keltie.
On receiving his QSM last year, Mr Lea thanked Pahiatua for being "the best little town in the world".
His community work involved not only council and community board involvement but also being a life member of Pahiatua Repertory Society, a cinema society, Tararaua College Board of Trustees, St Anthony's School Board of Trustees, St Brigid's Parish, Bush Multi Sports and Waiweka Home.
Eastern and Central Community Trust is to hold a meeting in Masterton later this month at which Wairarapa charities will be able to find out how to apply for donations.
Trust manager John Mckenzie said three Wairarapa projects will be profiled during the meeting to help groups understand the trust's financial criteria for assistance.
