La Râperie, a good neighbour

La Râperie de Longchamps and Raffinerie Tirlemontoise agree to take specific and timely measures to ensure good neighbourly relations with local residents and the municipal authorities of Eghezée. An action plan has been implemented over the past two years, and today we are proud to say that these actions have borne fruit. We shall continue to pursue our efforts as an ongoing process in accordance with the results achieved, in order to be able to build together the best possible sustainable future for the site.


Odours: Our new approach has yielded tangible results measured and validated by accredited independent institutions

At the end of the 2010 campaign, the total organic matter present in the decanting ponds, which is the source of odours, has been reduced by 70% as compared to the previous year. This drastic reduction is the result of both changes in facilities and preventative measures put in place in order to reduce the amount of organic material stored in the ponds and also a new approach involving the optimisation of the water purification process (DCO figures + Quantity of water).


This improvement of the results obtained by La Râperie has been validated and certified by the accredited organization CEBEDEAU (Center of Expertise in Water Treatment and Management). The measurements taken by ODOMETRIC during 2010 also confirmed that odour emissions had been reduced by 80% over the previous year. La Râperie de Longchamps has also taken steps to ensure that by 01/04/2011 at the latest the concentration of organic matter (COD) in the decanting ponds should be lower than 1500 mg/l, in order to avoid odour emissions during the summer.

Since for 2011:

  • La Raffinerie Tirlemontoise have committed to doubling the capacity of the existing treatment plant by adding an additional biological treatment plant by early 2012 at the latest. This investment ensures a proper and sufficient treatment of the organic material present in the ponds (DCO) and thus avoid odour emissions;
  • Monitoring of odour emissions by an approved organization continues;
  • The successful operation of both ponds and water treatment plant continues to be frequently monitored and carefully managed in collaboration with CEDEBEAU;
  • The results of each stage are shared with the steering committee, in order to strengthen our policy of transparency regarding local residents and authorities.


Noise: Case-by-case identification of sources and measures taken

Noises that might disturb residents of the area have been studied and in most cases have been resolved:

  • External stone removal and weeding equipment: moved inside a building;
  • Stone washers: installed in a building;
  • Beeping sounds from the bull: deactivation and replacement with an alternative security system;
  • The slamming of back doors of dump trucks remains a problem which is difficult to resolve entirely, but carriers’ attention was drawn to this point;
  • Behaviour of drivers: noise awareness and prevention campaign conducted during 2010.


Since 2011:

  • Setting up of sound records corresponding to the current situation (measurements taken in November 2010);
  • Creation of a noise map of effects on the surrounding environment, in order to establish a hierarchy of sources of noise;
  • Description of treatment options and budgeting for these;
  • Establishment of an action plan to further reduce the acoustic impact of the site;
  • Installation of soundproofing (shutters and doors around the washhouse and buildings that generate noise).


Carriers: Preventative measures, contracts and controls – the 3 pillars of collective action

A number of preventative measures were undertaken in 2010 to promote responsible behaviour on the road. This will involve

  • Charter for Carriers: All carriers have committed themselves to respecting our charter based on speed, cleanliness, punctuality and civility behind the wheel. Each signatory receives a label that must be placed in a visible position on the truck so that it is possible to identify and differentiate between the signatures of other drivers. The aim is to work more closely with carriers that have signed the agreement and respect the Charter;
  • Awareness-raising Campaign for Road Users: The four strategic means of access to La Râperie have been fitted with reflective panels which remind road users of the code of good practice. Reminders are provided as regards driving style and attention to the load as well as speed limits;
  • Speed ​​indicators around sensitive areas: two devices have been ordered by the Raffinerie Tirlemontoise this year and have been passed on to the police in order to increase driver awareness and to bring about a decrease in the speed of all vehicles and trucks in the vicinity of the populated areas of the site.




Since 2011:

  • La Raffinerie Tirlemontoise will continue its constructive preventative work with its growers and carriers by including specific clauses in contracts of carriage, particularly as regards indicating preferred routes to follow depending on the time of delivery, appropriate covering of combined loads and noise limitations of the truck engine;
  • In collaboration with local services and the police, La Raffinerie Tirlemontoise has developed a system for monitoring and enforcement mechanisms to ensure appropriate behaviour and discipline.



Setting-up of a steering committee that structures communication between all stakeholders: a platform of transparency that allows us to provide a systematic, comprehensive and accurate information flow to residents and to the authorities. Likewise, this direct, permanent contact enables us to develop a better understanding of needs and of perceptions of the effects of past and future actions.