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Water Applied
Research Center (Water ARC®)

Applied Research by Design

Aging infrastructure, stringent water quality and discharge requirements, and emerging constituents are driving water and wastewater agencies, municipalities, and private companies to seek out different and better solutions for dealing with the impacts of these challenges. Carollo’s Water Applied Research Center in Boise, Idaho, is tackling these issues head on.

Water ARC® performs a full range of applied research services that allows our clients to explore viable solutions, confirm efficacy, and meet regulatory requirements, reducing risk and improving efficiency. Whether improving existing processes and technologies or minimizing risks for early adopters of new technologies, Water ARC® is equipped to deliver a full range of applied research services.

Water ARC® Services

  • Laboratory-based bench treatability testing
  • Field analytical testing
  • Pilot testing
  • Demonstration testing
  • Proof of concept testing
  • Equipment design and fabrication
  • Quality control
  • Troubleshooting
  • Data collection, management, and analysis
  • Applied research consulting

Bench Treatment Capabilities

  • Coagulation/flocculation/sedimentation
  • Biological filtration
  • Adsorptive media
  • Reverse osmosis
  • Microfiltration/ultrafiltration
  • Ozone
  • Ultraviolet dsinfection
  • Advanced oxidation
  • Simulated distribution system tests

Available Studies

  • Lead and copper (bench or pipe loop corrosivity)
  • PFAS media
  • Nutrient removal studies
  • Disinfectant dose response
  • Organics characterization
  • Cyanotoxin
  • Biogas generation

Water ARC® is what you need it to be.

Water ARC®‘s full-time staff of researchers, laboratory technologists, and mechanical engineers collaborate with Carollo’s design and project teams. Together, we refine our R&D efforts against each client’s specific conditions and project requirements, so that viable alternatives can be thoroughly tried and tested with us before being implemented at the pilot or full scale.

demonstration, pipe loop, and instrumentation skids
bench treatability
studies since 2018
square feet of space designed for applied research services
dedicated team of experts to
support applied research

Water ARC® can scale up or down to meet any request

Equipped with a robust inventory of pilot- and demonstration-scale equipment, and with the ability to design and fabricate custom equipment on-site, Water ARC® can simulate any number of client specific conditions and processes, and, in turn, produce reliable high quality results clients can depend on. From single sample tests to multi-treatment processes, Water ARC® can scale up or down to meet any request.


short-term testing


studies and complex analysis


and condition-specific studies, including equipment and tool fabrication


and rapid-response diagnostics and solutions

A new generation
of pilot testing

Suspended Ion Exchange (SIX®) Pilot Project, David L. Tippin Water Treatment Facility

The City of Tampa partnered with Carollo’s Water Applied Research Center (Water ARC®)to provide full-time support for the design and implementation of a dynamic pilot study that evaluated the viability of suspended ion exchange (SIX®) technology, an organics-removal technology previously untested in the U.S. and never used under the current variable TOC conditions presented in the City’s primary water source.

The integration of Water ARC® and our project team led to several benefits less typical of standard pilot studies.

Streamlined pilot supply,
start-up, and operations:

Water ARC® provided Carollo-owned pilot equipment and customized pilot skids simulating the City’s existing ozone and biofiltration train, both with flexible operation and monitoring capabilities. Water ARC® also supported the pilot’s operator in configuring, integrating, optimizing, and troubleshooting this equipment and fabricated required new tools.

Quick, dynamic pivots fostered by reliable data:

Water ARC®’s quick delivery of reliable lab-based treatability data led to recommended adjustments In the study that were accomplished rapidly, improving the prospect of a positive outcome.

Flexibility of scope:

Transparency of Water ARC®’s testing protocols encouraged the City to expand the scope and test a range of alternate disinfection protocols to confirm the most effective option to be paired with SIX®.

Want to learn more?