ePIPE - Approved by SEVERN TRENT WATER

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ePIPE - Approved by SEVERN TRENT WATER

In the UK, a significant number of properties have their drinking water supplied through a lead service pipe. Lead is a cumulative poison that affects the nervous system and children are particularly vulnerable as it affects both their physical and intellectual development. Lead service pipes are the main contributor of dissolved lead in drinking water. Best endeavours in the battle against lead have historically been through plumbo-solvency control at the treatment source using phosphate dosing. The challenge for UK water companies is to find new innovative techniques to meet the new standard for lead in drinking water, that came into effect on 25th December 2013 (from 25μg/l to 10μg/l). Providing an effective solution to the new lead challenge is the ePIPE system, an approved patented process that involves applying an epoxy resin barrier coating to the inside surface of the pipe, thereby preventing drinking water from coming into contact with the lead.

ePIPE TRIALS and ACCEPTANCE

Approval was gained to undertake a trial with PRS in the Lydney area of Stroud where high lead levels had previously been recorded during routine water quality sampling. Lead service pipes were lined using the ePIPE system at sixty properties. 

The comparison of pre- and post- sampling indicated that the ePIPE system was effective at delivering significantly reduced lead levels at customer taps to well below the new 10μg/l standard.

The results of the trial were presented to the Severn Trent Water New Products Group and the ePIPE system was approved for use in Severn Trent Water as a water pipe renovation technique.

The ePIPE system is essentially a low dig renovation process and as such uses minimum excavation to gain access and to line the existing underground pipes. ePIPE, with a 2 hour return to service feature, is approved by both DWI to Regulation 31(4)a and WRAS. It therefore saves time, causes minimum disruption to both customers and highway users alike, and significantly reduces surface reinstatement costs. The ePIPE system comes into its own when the whole length of the lead service pipe is lined between the water main in the street and the first customer internal tap. In addition to resolving water quality problems, the system is also capable of sealing small pin-holes and fittings leaks in service pipes thereby reducing leakage and risk of property damage.

The ePIPE system is essentially a low dig renovation process and as such uses minimum excavation to gain access and to line the existing underground pipes. ePIPE, with a 2 hour return to service feature, is approved by both DWI to Regulation 31(4)a and WRAS. It therefore saves time, causes minimum disruption to both customers and highway users alike, and significantly reduces surface reinstatement costs. The ePIPE system comes into its own when the whole length of the lead service pipe is lined between the water main in the street and the first customer internal tap. In addition to resolving water quality problems, the system is also capable of sealing small pin-holes and fittings leaks in service pipes thereby reducing leakage and risk of property damage.