Project Reference List

Project: Tyndrum, Letham, Plean, Philipshill, Langholm, Knust, Dunlop, Hartshill, Kilearn WwTWs
Year: 2002
Client: Scottish Water
Country: UK (Scotland)
Value: ?1,300,000.00 (Turnkey) in 2002 - (total for all nine schemes)
Description: Naston has carried out a Process Audit of the above nine Scottish Water's Minor Waste Water Treatment Works to establish the scope of work required to improve operation, and to obtain consent compliance. The work includes process analysis, design, supply, installation and commissioning of the work while ensuring continuous operation. The scope of supply includes additional air blowers, sewage/sludge pumps, filter media, Naston SAF units, inlet screens, mixers, aerators, plus all valves, piping, instrumentation and controls.

Project: Edenbridge WwTW Phase 2
Year: 2001
Client: Southern Water Services
Country: UK
Value: ?466,000.00 (Turnkey) in 2001
Description: Turnkey design, supply, installation and commissioning of inlet works, with new 6 mm fine screens, conveyors, screenings handling, grit handling and skip trolley systems. Conversion of fixed primary tanks to rotating half bridge scraper tanks with civils modifications and tank coating, new site washwater system and all associated cables, instruments, panels and PLC/SCADA interfacing.

Project: Lagos State Water Supply
Year: 2001
Client: NEN Ltd
Country: Nigeria
Value: ?400,000.00 (M & E) in 2001
Description: Design and supply of 4 No. 190 M3/hr Compak containerised water treatment plants.

Project: Portbury Wharf STW Extensions
Year: 2001
Client: Wessex Water Services
Country: UK
Value: ?650,000.00 (M & E) in 2001
Description: Design, supply, installation and commissioning of conversion of existing SBR plant to activated sludge plant with additional aeration, RAS/SAS and scum pumping and new final settlement tanks, together with new MCC, modifications to existing MCC, cabling, instrumentation and PLC/SCADA interfacing.

Project: Waddan & Sukna
Year: 2001
Client: Libyan Government
Country: Libya
Value: ?6,313,000.00
Description: Design, supply and commissioning of mechanical, electrical and ICA equipment for two oxidation ditch extended aeration sewage treatment plants at Waddan & Sukna in the Al Jufra region. Scope includes civil design, site supervision of erection and first years plant operation.

Project: Bridgwater Sewage Treatment Plant
Year: 2000
Client: Wessex Water Services
Country: UK
Value: ?1,100,000.00 (M & E) in 2000
Description: This was a two phase project. The first phase included design, supply, installation and commissioning of new mechanical screens rated at 360 litres/sec, and screening handling equipment, complete with fully automatic 1250 kVA standby generator with all controls and switchgear. This generator also supplies surplus power into the local grid. The scope also includes replacement of 3 sets of sludge pumps and addition of separate pump package. The second phase was for a 'Fast Track Project' including design, supply, installation and commissioning of a sludge thickening plant, odour control, sludge belt press, polymer dosing and all electrics, controls and instrumentation, plus additional sludge pumps and booster pumps.

Project: Caroni Water Treatment Plant Upgrade
Year: 2000
Client: Trinidad & Tobago Water Services Ltd (Penspen Ltd)
Country: Trinidad
Value: ?2,750,000.00 (M & E) in 1999
Description: Design (including conceptual process and hydraulic design), supply and installation of a new 3200 M3/hr treatment stream comprising raw water pumping, clarification, filtration and high lift pumping. New

Project: Eden Vale Sewage Treatment Plant
Year: 2000
Client: Southern Water Services (C J Thorne & Co Ltd)
Country: UK
Value: ?460,000.00 (M & E) in 2000
Description: Design, supply, installation and commissioning of new inlet works to treat 229 litres/sec, storm tanks and sludge handling at Eden Vale. The scope includes new screens, grit and grease removal, sludge thickener, chemical dosing, complete with all switchgear controls and instrumentation.

Project: Fillyside Sewage Pumping Station
Year: 2000
Client: East of Scotland Water (Alfred McAlpine)
Country: UK
Value: ?1,000,000.00 (M & E) in 2000
Description: Design, supply, installation and commissioning of new storm screening to treat 1000 litres/sec, replacement DWF pumps, replacement storm pumps, penstocks, standby generator, including motor control centre, PLC and SCADA. The system provides new screening facilities on the combined storm overflow at Fillyside to protect the water quality and amenities at Portobello beach and to meet legislation agreed with SEPA, and implement ESW 'Watermark Initiative'.

Project: Infrastructure Development Project
Year: 2000
Client: Libyan Government
Country: Libya
Value: ?157,000.00 (M & E) in 2000
Description: Design and supply of potable water distribution system including piping, valves, fittings and metering systems.