The company has saved nearly £1.4 million over the last year by lowering its fleet fuel consumption, encouraging drivers to reduce their mileages and offering alternative schemes to company cars.
Anglian Water runs 677 company cars (or cars funded by employee cash allowances), 791 car-derived vans, 473 panel vans and 72 trucks.
It has improved its fleet's fuel economy by replacing older vehicles with more fuel-efficient diesels, and reducing business mileage. The company claims this has saved it about 1.6 million litres of fuel, equating to a saving in excess of £1 million.
Anglian Water has also adopted, on a limited scale, cars and vans powered by liquefied petroleum gas, and now runs 50 LPG vehicles. From a global warming perspective, it has calculated that it has slashed its emissions of the greenhouse gas carbon dioxide by 4,400-tonnes - beating its 700-tonne target.
Carol Green, Anglian Water transport co-ordinator, said: 'We are making huge strides in our bid to be an industry leader in green transport issues.'
She added that the company is planning further green initiatives by promoting a car-sharing scheme at its Huntingdon headquarters. It is also investigating the introduction of 'pool bicycles' for staff.