Hexham STW Refurbishment

We are investing over £4.9 million to improve Hexham Sewage Treatment Works. This investment is being undertaken to address asset condition and performance concerns meeting the demands of the upstream drainage catchment. Undertaking this refurbishment work will improve the sites compliance resilience, reducing the likelihood of future pollution incidents, minimising operator intervention improving site Health & Safety. Our sewage treatment works aids NWL in improving the quality of rivers and coastal waters for the benefit of people, the environment and wildlife.

Update by Dave Eden

Morning All.

Time for another update on the Hexham STW Refurbishment:

The seeding of the new filter beds looks to be complete and after some minor snagging we will be able to switch off the recirculation over-pumping and effectively take the two older filters out of service and allow the new filters to fully take over. The old filters will be retained so they can be brought back into service if necessary.

The inlet works area civils works is largely complete with just a plinth on top of the compressor slab still to pour. Erection of the prefabricated steel superstructure of the new inlet works is now underway.

Coring into the existing balancing tank is complete which will allow us to turn flows into the new inlet works at a later date.

Installation of the super-structure of the inlet works will continue for the next two weeks whilst the civils gang complete the wash water main. We then have a bit of a gap on the inlet works waiting on supply of the screens and penstocks, but the civils gang will still be going full speed on things like the crane pad, access road and repairs to the existing inlet works structure.

MEICA (mechanical and electrical installs) will be commencing in the next week or so, as will the final epoxy coating of the distribution chamber once over pumping is in place to isolate the distribution chamber.

Thanks for taking the time to read the update.

Dave Eden

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