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AMP6 Chorley Wastewater Treatment Works

Value £14.5m

Client: United Utilities

Completion: Nov 2017

The C2V+ Chorley Wastewater Treatment Works (WwTW) project and works are now progressing on site towards section one completion late 2017.

The technical stuff:

The £14.5m project has completed the works to construct:

  • Three 43m diameter pre-cast concrete Final Settlement Tanks
  • Two glass coated steel Sludge Tanks
  • Constructed and installed two new transformers
  • Four new Motor Control Centres (MCC’s); including the concrete bases

Construction of the new in-situ concrete raw activated sludge pumping station has commenced along with the associated MCC base.

The new wash water main, 1,200m diameter ductile iron feed pipe and 500mm dia sludge mains to service the new structures and interconnect with the old are also progressing in various sections of the site.

The construction of the extension to the existing inlet works; including the tie-in works to the existing structure is also progressing as is the conversion of the existing surface aeration system to a fine bubble system in the existing aeration lanes.

Collaborative planning sessions were held on-site weekly involving the client, C2V+ and sub-contractor teams to ensure programme certainty and work activities were known to all key parties and any risks to the project completion were highlighted at an early stage.

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