ICF Environment Water Quality, Wastewater, + Water Supply

Water Quality, Wastewater, + Water Supply

ICF International works with clients around the world to create strategies for improved water quality, wastewater treatment, and water supply that meet environmental and economic needs.



ICF covers every step of water quality, wastewater, and water supply systems planning, development, mitigation, and implementation, developing sophisticated models and alternative scenarios, analyzing impacts on the entire watershed, and engaging stakeholders on potentially controversial projects.

Our comprehensive water quality services include:

  • Preparation and execution of sampling and monitoring programs
  • Development and implementation of pollution control measures
  • Complex modeling and evaluation of various water quality parameters
  • Permit acquisition, including those for waste discharge
  • Compliance with U.S. Clean Water Act (CWA) Sections 401, 402, and 404 (including alternatives analysis)
  • Facility planning and compliance documentation
  • Valuation, including nonmarket valuation, of water and ecosystems
  • Public education for recycled water programs (including multilingual outreach)
  • Integrated watershed management
  • Development of habitat mitigation plans and strategies

As regions and communities face water shortages, escalating costs for wastewater treatment, and conflicts over source waters for supply, ICF provides innovative thought leadership and a global environmental perspective to meet these challenges. With 40 years of experience, we have the in-depth capabilities to creatively help numerous industries and cities worldwide and U.S. federal and state agencies in solving their most complex water quality, water supply, and wastewater environmental problems.


Featured Resources

  • Water quality, wastewater, and water supply systems planning, compliance, and implementation—ICF has a broad range of experience in this area, including identifying water-related land resource problems; inventorying, forecasting, and analyzing water-related land resource conditions; formulating management measures and alternative plans; developing appropriate mitigation design and cost estimates, and preparing project reports.
  • Wastewater management studies—ICF has conducted program- and project-level environmental analyses for facilities and master plans; stormwater modeling; collection system analysis and modeling permit assistance with waste discharge requirements, National Pollution Discharge Elimination System (NPDES), and Clean Water Act; air, effluent, and receiving water quality assessments and modeling; constructed wetlands design assistance; and mitigation monitoring and reporting.
  • Water resource management—ICF has conducted a wide range of water resource issue evaluations, water supply and use investigations and modeling, water budget and water allocation modeling, impact evaluations of water development and waste disposal projects, water quality investigations, instream flow beneficial use assessments, Instream Flow Incremental Methodology (IFIM) modeling, stormwater drainage evaluations, and Exhibit E documents.
  • Study and sampling analysis—ICF’s water quality specialists, hydrologists, and engineers have developed study and sampling plans for surface water monitoring to establish baseline conditions, determine impacts of activities, comply with regulatory (mitigation) requirements or conditions for permit approvals, and prepare detailed engineering designs and master plans.
  • Water quality measurement and modeling—ICF’s experts understand lake water quality dynamics and the influences of various factors on reservoir water quality. We maintain an in-house laboratory for conducting basic chemistry tests and biological equipment for BMI (Benthic Macroinvertebrate) analysis. We understand that water quality analysis and modeling will often need to be performed in a framework that supports TMDL (total maximum daily load) and NPDES regulations.
  • Water temperature measurement and modeling—ICF developed a water temperature model (JSATEMP) that is used on the Guadalupe and San Joaquin Rivers. We routinely perform temperature-modeling applications, especially for fisheries projects, under the Endangered Species Act. Reservoir and stream temperature is simulated using special modeling routines that accurately account for all important physical processes.
  • Regulatory compliance—ICF has prepared numerous environmental impact assessments associated with water quality. We are experts at understanding the federal, state, and local regulatory landscape. We work with water clients and stakeholders during planning stages of projects and apply our understanding of regulations, policies, and guidance in order to identify potential issues, anticipate the needs of agency personnel, seek integration/compatibility with other environmental compliance, and streamline the permit process.
  • Protection, mitigation, and enhancement planning—ICF has prepared comprehensive mitigation and monitoring plans (MMPs) for several water resource projects. The MMPs were developed through a collaborative process with resource agencies, local agencies, and other stakeholders. We have also prepared measures for energy clients with stormwater pollution prevention plans (SWPPPs) that include mitigation measures for water quality.
  • Public education for recycled water programs—ICF works primarily with public sector clients at the local, state, and federal levels to effectively inform, educate, and engage communities, decision-makers, and the media. Our team excels at strategic communication planning; stakeholder identification and assessment; community outreach; agency/official involvement; facilitation; collateral and website development, key message development and spokesperson training; construction outreach; special events; and media relations.
  • Construction monitoring—The ICF team has extensive experience providing construction water quality monitoring involving construction mitigation plan development, implementation monitoring, and long-term environmental compliance monitoring to ensure the quality of water. We also provide monitoring services including sample collection for both instream and discharge water.
  • City of Los Angeles Bureau of Engineering
  • East Bay Municipal Utility District Recycled Water Authority, CA
  • Energy Clients
  • Freeport Regional Water Authority, CA
  • King County Wastewater Treatment Division, WA
  • Los Angeles County Sanitation District, CA
  • Metropolitan Water District of Southern California
  • San Francisco Public Utilities Commission
  • Sanitation Districts
  • Santa Clara Valley Water District, CA
  • U.S. Department of Defense (DoD)
    • Army Corps of Engineers
  • U.S. Environmental Protection Agency (EPA)
  • Project

    Guadalupe River Flood Control Projects

    ICF worked with the Santa Clara Valley Water District and the U.S. Army Corps of Engineers, Sacramento and San Francisco Districts, on three flood protection projects along the Guadalupe River in Santa Clara County, California. The three projects (Upper, Downtown, and Lower Guadalupe River Projects) included flood protection components, habitat restoration components, and fish passage components.

  • Project

    Sunol Valley Water Treatment Plant (SVWTP) CEQA and Permitting Services

    ICF prepared the Environmental Impact Report (EIR) in coordination with both San Francisco Public Utilities Commission (SFPUC) and Major Environmental Analysis Division (MEA) and conducted California Environmental Quality Act (CEQA) environmental analysis and regulatory compliance for expansion of the SVWTP.

  • Project

    Northeast Interceptor Sewer-Eagle Rock Interceptor Sewer EIR and EIR Addendum

    ICF prepared the Environmental Impact Report (EIR) for the City of Los Angeles for the upgrade of its wastewater collection system.

  • Project

    Harry Tracy Water Treatment Plant Long-Term Improvements EIR

    ICF prepared a Draft Environmental Impact Report (EIR) for proposed improvements to the Harry Tracy Water Treatment Plant located on 52.3 acres in an unincorporated area of San Mateo County just east of Interstate 280 near the City of San Bruno and the City of Millbrae.

  • Project

    San Ramon Valley Recycled Water Program (SRVRWP)

    ICF developed and implemented a Public Information and Outreach Plan for activities related to the SRVRWP, a multiphase water recycling project consisting of a treatment plant, transmission and distribution pipeline, two pump stations, and two reservoir tanks.

  • Project

    Water Quality Trading Pilot Project Design

    ICF assisted in the identification of a potential Water Quality Trading (WQT) pilot project focused on nitrogen that would involve electric utilities.

  • Project

    Biological Assessment (BA) for the Brightwater Wastewater Treatment Plant

    ICF prepared a Habitat Conservation Plan (HCP) for submittal to National Marine Fisheries Service (NMFS) and the U.S. Fish and Wildlife Service (USFWS) for all of King County’s wastewater treatment and transport facilities.

  • Project

    2010 Master Facilities Plan EIR/EIS

    ICF managed a program Environmental Impact Report (EIR) and tiered Environmental Impact Statement (EIS) for the 428 mgd joint outfall system master plan for the Sanitation Districts of Los Angeles County’s Master Facilities Plan.

  • Project

    Water Quality Monitoring for Federal Navigation Channels

    The Army Corps of Engineers hired ICF to monitor water quality during maintenance dredging of the Duwamish River and Federal Navigation Channel of Grays Harbor navigation channel and turning basin in order to comply with water quality certification requirements for the project.

  • Project

    Altamont Pipeline Alignment Environmental Impact Report

    ICF worked for the Zone 7 Water Agency (Zone 7) concerning alternatives development and screening and California Environmental Quality Act (CEQA) compliance for a 14-mile water transmission line in eastern Alameda County.

  • Project

    The Clearwater Master Facilities Plan and New Ocean Discharge System EIR/EIS

    ICF prepared a joint Environmental Impact Report (EIR)/Environmental Impact Statement (EIS) document for the Sanitation Districts of Los Angeles County and U.S. Army Corps of Engineers, which included a project-level California Environmental Quality Act (CEQA) and National Environmental Policy Act (NEPA) analysis of a new ocean discharge system as part of the Clearwater Program and a programmatic CEQA analysis of a new master facilities plan (MFP) for the Joint Outfall System (JOS) through 2050.

  • Project

    Freeport Regional Water Project EIR/EIS

    ICF prepared all the environmental permits and conducted a comprehensive public outreach program for this large water delivery project (river intake, pipelines, and water treatment plant) to take delivery of water from the American River.

  • Project

    Applegate Wastewater Treatment Plant Decommissioning and Pipeline Project EIR

    ICF is preparing the Environmental Impact Report (EIR) on behalf of Placer County, which is the lead agency under the California Environmental Quality Act (CEQA) for the Applegate Wastewater Treatment Plant (WTP) decommissioning and proposed pipeline project.

  • Project

    Alameda Siphons/New Irvington Tunnel EIR

    ICF provided environmental services for the Alameda Siphons Seismic Reliability Upgrade Project and the New Irvington Tunnel Project.

  • Project

    Public Outreach Task Orders

    ICF community affairs specialists assisted the California Bay-Delta Authority (CBDA) under numerous task orders, including one for planning the Bay-Delta Public Advisory Committee (BDPAC) Environmental Justice Subcommittee meeting.

  • Project

    Wetlands Services and Values Literature Review

    To support wetlands in water quality trading, ICF assisted EPA in the classification of wetland goods and services and in the review of literature on how these services have been valued throughout the United States.

Contact Info

info (at) icfi (dot) com

+1.703.934.3603 or +1.800.532.4783

9300 Lee Highway, Fairfax, VA 22031-1207 USA

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