Water and Wastewater Treatment

More than 16,000 publicly owned water resource recovery facilities operate in the United States. Skilled engineers and operators work together to ensure new and updated facilities continue to protect public health and the environment.


The latest water and wastewater articles, videos, and other content from throughout the organization and across the water sector.

Water & Wastewater Treatment
Review of ASTM D8421-21 Standard Test Method for the Rapid, Cost-Effective Analysis of PFAS in Highly Contaminated Wastewaters

*Sponsored Content* This paper reviews ASTM test method D8421 for the LC-MS/MS analysis of PFAS in highly polluted samples. With this method, highly contaminated ...

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Water & Wastewater Treatment
Process Automation Significantly Reduces Secondary Treatment Costs

*Sponsored Content* Collaboration between Emerson and a leading U.S. water authority for aeriation control optimization serves as an example of the beneficial ...

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Water & Wastewater Treatment
A Refreshed Approach to Positive and Negative Culture Controls

*Sponsored Content* Positive and negative culture controls are an essential but seldom discussed aspect of an environmental laboratory’s quality system. There are ...

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Stormwater & Watershed Management
‘Recharge Net Metering’: A New Tactic for Cost-Effective Groundwater Recharge

California’s Pajaro Valley incentivizes private investment with innovative, market-based strategy

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Industrial Water Resources
Save Big on WEF Publications Through 12/23

Save up to 30% on print and digital WEF publications through the end of the year!

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Water & Wastewater Treatment
Safeguarding the Snake River with ProFlex™ Check Valves

*Sponsored Content* Discover how Proco Products, in collaboration with CONSOR Engineers and Ballard Marine Construction, upgraded Ontario, Oregon's wastewater ...

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Water and Wastewater Treatment Resources

The featured resources below are just a sample of everything WEF has to offer. Search our entire website and technical resource database for more.


Design of Water Resource Recovery Facilities

The 6th edition of WEF Manual of Practice No. 8 is the principal reference for contemporary facility design practices of wastewater engineering.

Get MOP 8

Schroepfer Innovative Facility Design Medal

This medal recognizes excellence in conceiving and directing the design of a project to achieve substantial cost savings or economic benefit while achieving environmental objectives.

More about the Schroepfer Medal

Planning, Design, and Implementation for New and Upgraded Water Resource Recovery Facilities

The second edition of WEF Manual of Practice No. 28 serves as a guidance document to help utility managers and others, such as city engineers, public works directors, regulators, and contractors, navigate this process.

Get MOP 28

LIFT Intelligent Water Systems Challenge

This challenge seeks to foster the adoption of smart water technologies by showcasing the ability of intelligent water systems to effectively leverage data for better decisions.

More about the IWS Challenge
06 June


Save the Date for the WEF/IWA Innovations in Process Engineering 2023 Conference, taking place June 6-9, 2023 in Portland, Oregon. This conference is focused on innovations in treatment technologies and process engineering.

Learn More about IPE 2023

Find the Communities You Need


MRRDC serves as the home of WEF members who share common technical interests in municipal wastewater treatment design and are drawn together to be the stewards of this knowledge area. The community develops, recommends, supports, and conducts programs of general and technical information relating to the advancement of municipal wastewater treatment design practices.



This community's volunteers serve as WEF's technical resources on water recycling, from planning and public outreach to treatment processes and distribution. Community members develop workshops, technical sessions, books, and webcasts; author articles; and provide comment on water reuse policies and positions.

Join the Water Reuse Community

Join or Renew Your WEF Membership Today

Connect with our community of water professionals who ensure that our local communities have access to clean water that protects public health. Explore our member benefits and find the membership type that’s right for you.

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Visit Our Community Platform

This virtual workspace, called WEFUnity, empowers WEF members to network and collaborate in an online environment.

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WEF is a source of high-quality technical resources featuring the latest research, news, and education. WEF's members and other credible resources have created and compiled this information into the Practice Area groupings listed in the dropdown menu.