WERF subscribers are municipal wastewater and stormwater agencies, wastewater equipment manufacturers, operators, consulting firms, corporations, and others who share a commitment to producing cost-effective water quality research.

Wastewater Utility


Anchorage Water & Wastewater Utility


Montgomery Water Works and Sanitary Sewer Board
The Water Works and Sanitary Sewer Board of Montgomery, Alabama.


Little Rock Water Reclamation Authority
"One Water. One Future"


Avondale, City of, AZ

Peoria, City of, AZ

Phoenix Water Services Department

Pima County Wastewater Reclamation Department

Scottsdale Water

Tempe, City of, AZ

Tucson, City of, AZ


American Canyon, City of, CA

Carlsbad Municipal Water District

Central Contra Costa Sanitary District (CCCSD)
Central San collects and treats 45 MGD of wastewater.

Corona, City of, CA

Crestline Sanitation District

Delta Diablo

Dublin San Ramon Services District

East Bay Dischargers Authority (EBDA)

East Bay Municipal Utility District (EBMUD)

Eastern Municipal Water District

Encina Wastewater Authority

Fairfield - Suisun Sewer District

Fresno Department of Public Utilities

Hayward, City of, CA (merged with East Bay Dischargers Authority)
Inland Empire Utilities Agency

Irvine Ranch Water District

Las Gallinas Valley Sanitary District

Las Virgenes Municipal Water District

Livermore, City of, CA

Long Beach Water Department
Los Angeles, City of, CA

Metropolitan Water District of Southern California
Montecito Sanitary District

Monterey 1 Water (MW1)

Napa Sanitation District

Novato Sanitary District

Olivenhain Municipal Water District
Orange County Sanitation District (OCSD)

Orange County Water District

Padre Dam Municipal Water District

Roseville, City of, CA

Sacramento Regional County Sanitation District

San Diego County Water Authority
San Diego, City of, CA

San Elijo Joint Powers Authority
San Francisco Public Utilities, City & County of

Sanitation Districts of Los Angeles County
The Sanitation Districts provide cost-effective wastewater and solid waste management.

Santa Barbara, City of, CA

Santa Cruz, City of, CA

Santa Rosa, City of, CA

Santa Ynez Community Services District
Scotts Valley Water District
Silicon Valley Clean Water (formerly South Bayside System Authority)

Sonoma County Water Agency

Soquel Creek Water District
South Orange County Wastewater Authority

Stege Sanitary District

Sunnyvale, City of, CA

Thousand Oaks, City of, CA

Union Sanitary District (merged with East Bay Dischargers Authority)

Upper San Gabriel Valley Municipal Water District
Ventura, City of, CA

Victor Valley Wastewater Reclamation Authority
Water Replenishment District of Southern California
West Basin Municipal Water District

West Valley Sanitation District

Western Municipal Water District
Windsor, Town of, CA


Aurora, City of, CO (Aurora Water)

Boulder, City of, CO
Providing quality water, wastewater and stormwater services for Boulder, Colorado.

Centennial Water and Sanitation District

Denver Water

Eagle River Water & Sanitation District
Greeley, City of, CO
The Water and Wastewater Utility for the City of Greeley, Colorado.

Metro Wastewater Reclamation District (MWRD)

Platte Canyon Water & Sanitation District

South Adams County Water & Sanitation District

South Platte Water Renewal Partners (Littleton/Englewood WW Treatment Plant)


Greater New Haven WPCA

District of Columbia

DC Water (District of Columbia Water & Sewer Authority)


Fort Lauderdale, City of, FL

Hillsborough County Public Utilities

Hollywood, City of, FL


Miami-Dade County

Orange County Utilities Department

Orlando, City of, FL

Pinellas County Utilities

Reedy Creek Improvement District

St. Petersburg, City of, FL

Tallahassee, City of, FL

Toho Water Authority


Atlanta Department of Watershed Management

Augusta, City of, GA

Clayton County Water Authority

Cobb County Water System

Columbus Water Works

Gwinnett County Department of Water Resources

Macon Water Authority

Savannah, City of, GA


Honolulu, City & County of


Ames, City of, IA

Cedar Rapids Water Pollution Control Facilities

Des Moines, City of, IA


Boise, City of, ID


Greater Peoria Sanitary District

Metropolitan Water Reclamation District of Greater Chicago (MWRDGC)

Sanitary District of Decatur


Jeffersonville, City of, IN


Johnson County Wastewater

Lawrence, City of, KS

Olathe, City of, KS


Louisville & Jefferson County Metropolitan Sewer District


Sewerage & Water Board of New Orleans
Serving citizens of New Orleans and protecting the environment since 1899.


Boston Water and Sewer Commission

Upper Blackstone Water Pollution Abatement District

Wareham Water Pollution Control Facility


Anne Arundel County

Calvert County Water & Sewerage Division

Howard County Bureau of Utilities

Washington Suburban Sanitary Commission (WSSC)
Eighth largest water utility serving 1.8 million residents in suburban Washington, D.C. 


Bangor, City of, ME

Portland Water District


Ann Arbor, City of, MI

Gogebic-Iron Wastewater Authority

Grand Rapids, City of, MI

Great Lakes Water Authority

Holland Board of Public Works

Saginaw, City of, MI

Wayne County Department of Public Services

Wyoming, City of, MI


Metropolitan Council Environmental Services (MCES)

Rochester, City of, MN

Western Lake Superior Sanitary District


Independence, City of, MO

Kansas City Missouri Water Services Department

Metropolitan St. Louis Sewer District

North Carolina

Charlotte Water
Clean water for healthy living.

Durham, City of, NC

Metropolitan Sewerage District of Buncombe County

Old North State Water Company

Orange Water & Sewer Authority (OWASA)

Raleigh, City of, NC

New Jersey

Bergen County Utilities Authority

Camden County Municipal Utilities Authority

New Mexico

Albuquerque Bernalillo County Water Utility Authority

Rio Rancho Utilities Corporation


Washoe County Dept Water

New York

New York City Department of Environmental Protection (NYCDEP)


Avon Lake Municipal Utilities

Columbus, City of, OH

Metropolitan Sewer District of Greater Cincinnati
Through water reclamation management services, MSD protects Hamilton County, Ohio.

Montgomery County Water Services

Northeast Ohio Regional Sewer District (NEORSD)

Summit County


Oklahoma City Water & Wastewater Utility Department

Tulsa, City of, OK


Bend, City of, OR

Clean Water Services

Gresham, City of, OR
Gresham Wastewater Services: Responsible wastewater treatment at award-winning sewer plant.

Lake Oswego, City of, OR

Portland, City of, OR

Water Environment Services (Clackamas County, OR)


Philadelphia, City of, Water Department

University Area Joint Authority
Central Pennsylvania provider of modern municipal Wastewater/Water Recycling services.

South Carolina

Beaufort - Jasper Water and Sewer Authority

Charleston Water System

Greenwood Metropolitan District

Mount Pleasant Waterworks

Spartanburg Water


Cleveland Utilities

Murfreesboro Water & Sewer Department


Austin, City of, TX

Dallas Water Utilities

Denton, City of, TX

El Paso Water Utilities

Fort Worth, City of, TX

Houston, City of, TX

San Antonio Water System

Trinity River Authority


Alexandria Renew Enterprises

Arlington County
Arlington County Government, Department of Environmental Services.

Fairfax County

Fauquier County Water & Sanitation Authority

Hampton Roads Sanitation District (HRSD)

Hanover County

Hopewell Water Renewal

Loudoun Water

Prince William County Service Authority

Richmond, City of, VA

Rivanna Water & Sewer Authority

Upper Occoquan Service Authority


Everett, City of, WA

King County Department of Natural Resources and Parks

Seattle Public Utilities


Kenosha Water Utility

Madison Metropolitan Sewerage District (MMSD)

Milwaukee Metropolitan Sewerage District

New Water (Green Bay Metro Sewerage District)

Racine Water & Wastewater Utility

Sheboygan, City of, WI

Stevens Point, City of, WI

Wausau Water Works


ACTEW Corporation (WSAA)

Allconnex Water (WSAA)
Barwon Water (WSAA)

Central Coast Council
Central Highlands Water (WSAA)

City West Water (WSAA)
Coliban Water Corporation (WSAA)

Gippsland Water (WSAA)

Goulburn Valley Water (WSAA)

Hunter Water Corporation (WSAA)

LinkWater (WSAA)

Melbourne Water Corporation (WSAA)
Power and Water Corporation (WSAA)

Queensland Urban Utilities (WSAA)

SEQ Water (WSAA)

South Australian Water Corporation (SA Water) (WSAA)

South East Water (WSAA)

Sydney Water Corporation Limited (WSAA)

TasWater (WSAA)
Townsville Water (WSAA)
Unitywater (WSAA)

Wannon Region Water Corporation (WSAA)

Water Corporation of Western Australia (WSAA)

Western Water (WSAA)
Yarra Valley Water (WSAA)


Calgary, City of, Alberta

EPCOR Water Services

Lethbridge, City of, Alberta

Metro Vancouver

The Regional Municipality of York

Toronto, City of, Ontario

Winnipeg, City of, Manitoba


Aarhus Vand A/S
VandCenter Syd (VCS Denmark)

New Zealand

Watercare Services Limited (WSAA)