ALRO shows how small companies can take on Major contracts
ALRO Services Ltd., specialist sewage and waste water engineers recently won a large contract to design and construct a complete sewage system for the Police Staff Training College based in Hampshire.
The project delivered the replacement of 3 existing defunct sewage treatment facilities with a single new Wastewater Treatment Plant manufactured by WPL Limited. The new High Performance Aerated Filter was designed to cater for a 1250 population equivalent community and function without loss of discharge quality in a 1:100 year storm event.Even though they were competing against much larger companies ALRO were selected due to the expertise they displayed when faced with a complex design situation.
ALRO using their 30 years of experience in the domestic and public sector put together a bespoke design to incorporate all the existing treatment Systems into just one that met with all the Environment Agency’s Permit requirements.
This had the added bonus of saving the client considerable money as they were able to continue treating their own sewage on-site, without having to store and pump it to the nearest treatment works in Hartley Witney.
There were however complications that ALRO had to overcome;
No concession on the Discharge Permit existed for stormwater overflow. Given that the building is a grade one listed building the separation of surface and stormwater was not an option.
This meant that the storage of such flows needed to be incorporated into the overall design. ALRO used a practical and simplistic design which would require no maintenance to deal with this huge amount of stormwater should it occur. This proved to be a key design point.
