yorkshire water

Circle have worked on Yorkshire Water schemes for almost 30 years.
We started with Yorkshire water at the end of AMP 2 and have firmly established ourselves as reliable and reactive subcontractor, here we have some of our most recent schemes throughout AMP6 and AMP7

WINEP Schemes

JN Bentley / tilbury douglas / enpure

The Water Industry National Environmental Programme (WINEP) was the main capital investment programme in AMP7 throughout the water industry to comply with new regulatory obligations on Phosphorus.

Circle have completed the LV electrical installation for different contract partners on Yorkshire Water, this mainly comprised of Ferric / Caustic package plants, TSR units and Pumping Stations.

WINEP Schemes involved in

■ Esholt WwTW ■ Harrogate South STW ■ Dishforth STW ■ Wath on Dearne STW ■ Killinghall STW ■ Thornton Le Beans ■ Embsay WTW   ■ Hetton STW
■ Wombwell STW   ■ Pocklington STW   ■ Stanley STW   ■ Mexborough STW   ■ Tupton STW   ■ Kirkby Malzeard STW   ■ Keighley Marley STW   ■ Denaby STW
■ Rainton STW   ■ Worsborough STW   ■ Dewsbury WwTW

CSO Schemes

JN Bentley

A CSO is a 'Combined Sewer Overflow' which are found all over the UK and were developed to aid the sewage system pipework. During heavy rainfall the capacity of these pipes can be exceeded, which means possible inundation of sewage works and the potential to back up and flood peoples’ homes, roads and open spaces, unless it is allowed to spill elsewhere. Combined sewer overflows were developed as overflow valves to reduce the risk of sewage backing up during heavy rainfall.

We e have completed a number of these schemes from new CSO installation to refurbishment of existing. The works involved the LV electrical installation of Huber

screens, local control panels, power and control cabling, instrumentation installation.

Sites completed: Red Doles CSO ■ Stockwell Hill CSO ■ Colton CSO ■ Rivadale CSO ■ Beech Hill CSO ■ Roseville CSO ■ Cartmell Road CSO
■ Wellfield Road CSO ■ Magnavale CSO

Knostrop stw

ward & burke scheme

This is the single largest scheme Circle has undertaken with a contract value of £1.7M

This involved work in the following areas;
■ ASP No.1 / RAS Anoxic Tank No.1
■ ASP No.2
■ ASP No.3
■ RAS Anoxic Tank No.2
■ Ferric Dosing Plant
■ TSR
■ High Level Ferric
■ New Fibre Optic Network

The scheme lasted 18 months and was completed in August 2024

esholt wWtw - thp delivery scheme

MGJV and Veolia Water combined scheme

This is one of the largest schemes Circle has undertaken with a combined contract value of £1.2M, we setup a satellite office on the Esholt Industrial Park estate in June 2012 and started site works in August 2012.

The scheme was completed in April 2014

saltend wwtw - emergency

MS2JV Scheme

Due to environmental issues and odour complaints the following areas were identified for an upgrade and clean;

* Odour Control

* Primary Treatment - 4 No. Lamella settling tanks

* Secondary Treatment - 8 No. SBR tanks were each cleaned and upgraded

A new odour control system was installed within the Inlet Pumping Station, the Lamella's were cleaned with new desludge pumps installed and each SBR had aeration modifications, instrumentation and modified air blowers.

The LV electrical installation was started in September 2015 and completed to programme in May 2016.

Circle Control & Design Systems