Flatiron offers clients a full range of water and wastewater services.

We help clients deliver water to their communities by employing unique techniques for renovations, upgrades to existing facilities, and construction of new water and wastewater treatment plants.

Because we self-perform much of the concrete, piping and mechanical work, we can better control quality, cost and schedule, passing those benefits on to our clients.

Expertise in water and wastewater projects

  • Reverse osmosis/advanced oxidation
  • Pipelines
  • Facility upgrades
  • Membrane filtration
  • Pumping stations
  • Intake structures
  • Water resources management – dams, levies, and major conveyance
  • Water and wastewater treatment plants
  • Water storage

Water Projects

EchoWater NST Project (Nitrifying Sidestream Treatment)
Elk Grove, California
Value: $40 million
Delivery: Design-Build
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Santaquin Water Reclamation Facility
Santaquin City, UT
Value: $14.9 million
Delivery: Bid-Build
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Southwest Groundwater Treatment Plant
West Jordan, UT
Value: $24 million
Delivery: Bid-Build
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Rahway Valley Sewerage Authority Wastewater Treatment Plant
Rahway, NJ
Value: $138.9 million
Delivery: Bid-Build
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Poplar Point Pumping Station Replacement
Washington, DC
Value: $53.4 million
Delivery: Bid-Build
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Flushing Bay Combined Sewer Overflow Retention Facility: Contract 4-4
Queens, NY
Value: $133.7 million
Delivery: Bid-Build
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Flushing Bay Combined Sewer Overflow Retention Facility: Contract 4-3
Queens, NY
Value: $115 million
Delivery: Bid-Build
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Leo J. Vander Lans Advanced Water Treatment Facility Expansion
Long Beach, CA
Value: $32 million
Delivery: Bid-Build
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Lenihan Dam Outlet Modifications
Los Gatos, CA
Value: $39 million
Delivery: Bid-Build
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