Wastewater Collection Systems

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Up to 70 percent of the total value of wastewater infrastructure can be invested in the wastewater collection systems. Optimising these systems to provide the maximum capacity with limited capital spend is becoming more and more important as utilities try to limit rates increases to their customers

GHD has the knowledge base and systems to tackle any wastewater transportation problem – for new systems or upgrading existing assets.

Having designed more than 1000 sewage pump stations and thousands of kilometres of sewers, our industry professionals challenge conventional approaches to establish new and cost-effective benchmarks.

Our services include:

  • Integrated urban water management – to enable efficient use of the scarce water resources in areas of drought
  • Strategic planning – resulting in a more efficient network and a planned upgrades programme
  • Network modelling – to help determine the optimum upgrade or delay upgrades if flows can be rerouted
  • Designing and installing gravity, low pressure and vacuum sewerage schemes in urban or rural areas but where it is expensive to run low flow sewers
  • Designing pumping stations from small flows through to large terminal pump stations  
  • Sewer lining design and detailing
  • Special structures such as on/off-line storage to regulate the flows to periods when there is more capacity in the pipes
  • Managing projects to deliver on time and on budget
  • Reducing overflows to comply with consents and to save money
  • Addressing infiltration and inflow which may delay upgrades by providing additional capacity in the network and at the ultimate treatment plant
  • Minimising and rehabilitating sulphide control systems

For further information, contact:

Colin Forsyth
T: +44 1904 436124
E: Colin Forsyth

 

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Colin Forsyth

Colin Forsyth

Colin brings broad potable water, stormwater and wastewater capabilities and has more than 20 years of experience in a wide range of civil engineering projects, including senior project management roles in multidisciplinary design and construction monitoring teams.

Colin is building GHD’s water business in the UK. He was previously based in Christchurch in New Zealand responsible for leading GHD’s response to help the city rebuild potable, stormwater and wastewater infrastructure after the earthquakes.

In the immediate aftermath of the February 2011 earthquake, Colin managed the wastewater recovery on behalf of City Care Contractors Ltd and Christchurch City Council, reporting to the Council’s Civil Defence Recovery Group.

Service Group Manager, Water Services - United Kingdom
T: +44 1904 436124
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