A CASE STUDY FOR SURFACE WATER REMEDIATION: PEMBROKESHIRE LOCATION: ROAD BRIDGE, PEMBROKESHIRE, SOUTH WALES SUMMARY The development of a new 9.3km dual carriageway connecting Carmarthen to Pembroke Dock was undertaken in 2013. There was a high risk of water contamination to local water courses due to soil disruption during the construction process. Hydro quickly engineered a solution that would meet standards required on the roadway site. The solution provided four treatment plants to the Roadbridge site, operating when rainfall occurred. These systems were engineered and manufactured to specific flow rates and areas available on the roadway, this caused the bespoke development of different sized units. BACKGROUND Due to the unearthing of soil during construction red sandstone and clay s

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