Freese and Nichols has been providing professional services for water and wastewater infrastructure since our founding in 1894. We have provided cost-effective, innovative solutions to critical infrastructure issues for a wide range of municipalities and special districts with populations ranging from 2,000 to over 1 million. As your trusted advisor, we’ll work with you from the project development stage through construction to deliver reliable projects that are easy to operate and maintain.

Water and Wastewater Planning

Freese and Nichols has one of the largest groups of professionals dedicated to water and wastewater system modeling and master planning. We’ve completed a wide range of master plans, regulatory assistance services, and asset management implementations. As a result, we can provide a big-picture view of your systems to prioritize your solutions, maximize existing infrastructure, and optimize your budget. Our solutions enable you to implement long-term solutions while being good stewards of financial resources.

Start a Water and Wastewater Planning Project
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Specific Services

Comprehensive Master Planning
  • Strategic planning
  • Water, wastewater and reclaimed water system modeling
  • Capital Improvement Plan (CIP) prioritization, development and tracking
  • Operational assistance
  • Pressure plane delineation
  • Energy analysis optimization
  • CMOM planning and implementation
  • Infiltration/inflow studies
Water Quality
  • Groundwater rule planning
  • Water quality modeling
  • Unidirectional flushing programs
  • Nitrification investigation
  • Water quality assessments
  • Water age management
  • Alternative disinfection strategies
Business Solutions
  • Regulatory assistance
  • Impact fee programs
  • Comprehensive rate studies
  • Desktop rate reviews
  • Organizational and operational benchmarking
  • Development agreements
  • State Revolving Fund (SRF) project assistance
  • Stakeholder engagement

Featured Projects

  • Interceptor Condition Assessment Program, City of Fort Worth, Texas (pictured)
  • Water/Wastewater Master Plan Phase 2 and Reuse Master Plan Update, City of Frisco, Texas
  • Water Infrastructure Plan, San Antonio Water System, Texas
  • Distribution Water Quality Evaluation, North Texas Municipal Water District
  • Comprehensive Wastewater Collection System Assessment, City of Dallas, Texas
  • Wastewater Modeling Study, City of Durham, North Carolina
  • Crosstown Tunnel Basin Sanitary Sewer Evaluation Study, City of Austin, Texas
  • Wastewater System Modeling and Master Planning, City of Houston, Texas
  • Water and Wastewater Impact Fee Update, City of Fort Worth, Texas
  • Asset Inventory and Management Project, Trinity River Authority, Texas
  • Deer Creek and Chisholm Creek Wastewater Treatment Master Plan, City of Oklahoma City, Oklahoma
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Transmission and Utilities

As a leader in water and wastewater systems, Freese and Nichols is the firm of choice for fast-track and complex projects. In recent years, we’ve designed more than 1,400 miles of pipelines in urban, suburban and rural environments, and pump stations with a combined capacity of over 9 billion gallons per day. Our designs account for initial capital cost, total life cycle cost, low operations, and maintenance (O&M) cost, reliability, and resiliency. We customize our designs to meet your specific needs and follow through with construction management, commissioning, and O&M services. We also provide expertise in condition assessment and rehabilitation of existing systems.

Start a Transmission and Utilities Project
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Specific Services

Water conveyance
  • Pump Stations
  • Lake and river Intakes
  • Pipelines
  • Elevated and ground storage tanks
  • Earthen balancing reservoirs
  • Stormwater pump stations
  • Flow control structures
Wastewater collection
  • Interceptors and force mains
  • Lift stations
  • Metering stations
  • Trenchless rehabilitation
  • Inverted siphon modeling and design
  • Manhole rehabilitation
  • Odor control
Services for Both Water and Wastewater
  • Condition Assessments
  • Rehabilitation
  • Corrosion evaluation and control
  • Route studies
  • Operations and energy studies
  • Hydraulics analysis
  • Surge modeling
  • Collaborative delivery – PDB and CMAR
  • Startup and commissioning

Project Gallery

View All

Sabine River Pump Station and Pipeline

Sabine River Authority of Texas

Eastern Regional Infrastructure Project

Gwinnett County Department of Water Resources, Georgia

South County Potable Water Transmission Main

Hillsborough County, Florida

Lake Arlington Lift Station and Force Main

City of Fort Worth, Texas

Triangle Innovation Point Water and Sewer Improvements

City of Sanford, North Carolina

Liquefied Natural Gas Plant Stormwater Pump Stations

Kiewit Engineering Group Inc.

Bois d'Arc Lake Construction Management and Inspection

Bois d’Arc Lake Program Management Services

North Texas Municipal Water District

Central Wastewater Treatment Plant Influent Pump Station

Central Wastewater Treatment Plant Influent Pump Station

City of Dallas, Texas

Eagle Mountain Connection Project

Eagle Mountain Connection Project

Tarrant Regional Water District, Texas

Fulton-Cobb Diversion Line and Pump Station

Fulton-Cobb Diversion Line and Pump Station

Fulton County, Georgia

Integrated Pipeline and Kennedale Balancing Reservoir Expansion

Integrated Pipeline and Kennedale Balancing Reservoir Expansion

Tarrant Regional Water District, Texas

Lake Conroe Raw Water Intake and Pump Station

Lake Conroe Raw Water Intake and Pump Station

San Jacinto River Authority, Texas

Main Stem Pipeline and Pump Station

Main Stem Pipeline and Pump Station

North Texas Municipal Water District

Mary Rhodes Pipeline

Mary Rhodes Pipeline

City of Corpus Christi, Texas

Pump Station 16 and Ground Storage Tank

Pump Station 16 and Ground Storage Tank

City of Lubbock, Texas

San Antonio River Outfall Pipeline

San Antonio River Outfall Pipeline

San Antonio Water System, Texas

Texoma to Wylie Pipeline

Texoma to Wylie Pipeline

North Texas Municipal Water District

Ward County Water Transmission System

Ward County Water Transmission System

Colorado River Municipal Water District, Texas

Sanford/Chatham County Sanitary Sewer Extension and Lift Stations

Sanford/Chatham County Sanitary Sewer Extension and Lift Stations

City of Sanford, North Carolina

Kaw Lake Water Supply Project

Kaw Lake Water Supply Project

City of Enid, Oklahoma

Second Source Pipeline and Repump Station

Second Source Pipeline and Repump Station

West Harris County Regional Water Authority, Texas

Water/Wastewater Treatment and Reuse

Freese and Nichols helps communities plan, design and deliver water purification, wastewater treatment, resource recovery and reuse solutions that protect public health, strengthen infrastructure resiliency and support long-term growth. We serve municipal, state and federal clients across the United States, providing planning, design, and construction phase services, program management, process troubleshooting, and startup and commissioning support for advanced treatment facilities.

Our treatment experience spans projects that collectively provide billions of gallons per day in capacity for our clients. From early planning studies through plant design and implementation, our teams bring practical innovation, regulatory understanding and operator-focused solutions to complex water and wastewater challenges. Our approach emphasizes making the most of existing treatment assets by optimizing performance, uprating infrastructure, extending service life, and planning timely, right-sized expansions that maximize ratepayer value and improve resilience.

Treatment has been central to Freese and Nichols since 1894, and it was one of the original services offered by our founders Major John Hawley, Simon Freese and Marvin Nichols. Today, our nationally recognized specialists continue that legacy with a commitment to technical excellence, quality and outstanding client service.

Explore our water and wastewater treatment services below.

Start a Wastewater and Wastewater Treatment Project
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Specific Services

Water Purification (Water Treatment)
  • Facility optimization, uprating, condition/capacity evaluations
  • Hydraulic improvements and modeling
  • Bench and pilot scale studies
  • Indirect/direct potable reuse for water supply augmentation
  • Brackish groundwater and seawater desalination
  • Conventional and advanced groundwater & surface water treatment
  • Low-pressure and high-pressure membrane filtration and optimization
  • Chlorine, chloramine, ozone and UV disinfection
 
  • Advanced oxidation
  • Chemical and energy optimization
  • Disinfection byproduct control
  • Distribution system water quality
  • Lead and copper rule compliance
  • Enhanced coagulation and sedimentation
  • Chemical feed and scrubbers
  • Softening, lime addition and recarbonation
  • Taste and odor control
  • Water supply and source water protection
  • PFAS treatment and micropollutants
Resource Recovery (Wastewater Treatment)
  • Facility planning, condition/capacity assessments and process modeling
  • Water reclamation and reuse
  • Conventional activated sludge and high rate activated sludge systems
  • Process intensification technologies (e.g. IFAS, MBR, granular activated sludge)
  • Biological and chemical phosphorus removal
  • Total nitrogen removal
  • Aeration and blower optimization
  • Headworks, coarse and fine screening, and grit removal
  • Wastewater pumping systems
  • Primary clarification and high-rate primary treatment
  • Secondary clarification
 

Cloth media and conventional filtration

  • Chlorine, UV and hypochlorite disinfection
  • Anaerobic treatment and digestion
  • Aerobic digestion
  • Biosolids master planning, regulations and residuals management
  • Biosolids dewatering and drying
  • Class A biosolids treatment
  • Energy conservation and recovery
  • Industrial pretreatment and technically based local limits
  • Wet weather flow management, storage and treatment
  • Plant upratings and expansions
  • PFAS treatment and emerging contaminants

Project Gallery

View All
Catawba River Water Pollution Control Facility

Catawba River Water Pollution Control Facility

City of Morganton, North Carolina

Etowah River Water Treatment Plant Evaluation and Plate Settler Design

Cherokee County Water and Sewerage Authority, Georgia

Southwest Water Reclamation Facility Influent Pump Station and Headworks Odor Control

City of St. Petersburg, Florida

Village Creek Water Reclamation Facility Biosolids Management and Beneficial Reuse

City of Fort Worth, Texas

Expansion of the Auger Water Treatment Plant to 12 MG

Expansion of the Auger Water Treatment Plant to 24 MG

City of Midlothian, Texas

Indirect Potable Reuse

City of Cleburne, Texas

Phase I PFAS Treatment Pilot Study

Columbus Water Works, Georgia

Holly Water Treatment Plant Expansion

Holly Water Treatment Plant Expansion

City of Fort Worth, Texas

Ray Roberts Water Treatment Plant Re-Rate and Performance Improvements

City of Denton, Texas

Lick Creek Wastewater Treatment Plant Capacity Expansion

City of College Station, Texas

Wastewater Treatment Plant Expansion

City of Cleburne, Texas

Central Wastewater Treatment Plant Expansion

Central Wastewater Treatment Plant Expansion

City of Pflugerville, Texas

Allison Wastewater Treatment Plant Nitrification Study

Allison WWTP IFAS Process Intensification

City of Corpus Christi, Texas

Village Greek Water Reclamation Facility Thickening Study & Modifications

Village Creek Water Reclamation Facility Thickening Study and Modifications

City of Fort Worth, Texas

Phase 1C Water Treatment Plant Expansion and Zebra Mussel control

Phase 1C Water Treatment Plant Expansion and Zebra Mussel Control

Brushy Creek Regional Utility Authority, Texas

Wylie Water Treatment Plant Power System Improvements

Wylie Water Treatment Plant Risk-Based Renewal CIP

North Texas Municipal Water District

Tunneling and Trenchless

Our tunneling and trenchless solutions enable us to facilitate infrastructure projects where conventional, open cut methods would disrupt constituents’ quality of life, require lengthy permitting reviews, or would be too expensive. From trenchless road or railway crossings for water lines involving horizontal auger boring or horizontal directional drilling to deep gravity tunnels for stormwater and wastewater involving tunneling or microtunneling boring machines, Freese and Nichols tailors this specialized service to meet your needs for projects of all sizes.

  • Trenchless crossing concept development and evaluation
  • Tunnel route studies and shaft site selection
  • System hydraulics evaluation, computational fluid dynamics (CFD), and surge modeling
  • Desktop geotechnical and environmental investigations
  • Tunnel or trenchless excavation method evaluation
  • Shaft excavation support method evaluation
  • Economic evaluation and life cycle cost analysis
  • Tunnel lining, casing pipe, and carrier pipe design
  • Highway, railroad, and other permitting and regulatory approvals
  • Public input support
  • Odor control/cleaning facilities
  • Geotechnical investigation and interpretation
  • Settlement analysis
  • Geotechnical instrumentation and monitoring
  • Third party design reviews
  • Constructability reviews
  • Contractor submittal reviews
  • Risk management
  • Data collection and GIS management
Start a Tunneling and Trenchless Project
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Project Gallery

View All

Collier’s Ferry Pump Station and Intake Extension

City of Beaumont, Texas

Cottonwood and Hackberry Creek Wastewater Interceptor Improvements

City of Irving, Texas

South County Potable Water Transmission Main

Hillsborough County, Florida

Benbrook Connection Project

Benbrook Connection Project

Tarrant Regional Water District, Texas

HCFCD Tunneling Phase 1

Deep Tunnel Study Phase One

Harris County Flood Control District, Texas

Mary Rhodes Pump Station microtunneling

Mary Rhodes Pump Station

City of Corpus Christi, Texas

BCRUA Phase Two Raw Water Delivery System

BCRUA Phase Two Raw Water Delivery System

Brushy Creek Regional Utility Authority, Texas

Main Stem Pump Station microtunneled intakes

Main Stem Pump Station Microtunneled Intakes

North Texas Municipal Water District

Mary Rhodes Pipeline

Mary Rhodes Pipeline

City of Corpus Christi, Texas

Granger Lake Raw Water Pump Station

Granger Lake Raw Water Pump Station

Brazos River Authority, Texas