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"


City of Avondale, AZ

City of Peoria, AZ

City of Tempe, AZ

City of Tucson, AZ

Phoenix Water Services Department

Pima County Wastewater Reclamation Department

Scottsdale Water


Carlsbad Municipal Water District

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

City of American Canyon, CA

City of Corona, CA

City of Livermore, CA

City of Los Angeles, CA

City of Roseville, CA

City of San Diego, CA

City of Santa Barbara, CA

City of Santa Cruz, CA

City of Santa Rosa, CA

City of Sunnyvale, CA

City of Thousand Oaks, CA

City of Ventura, 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

Inland Empire Utilities Agency

Irvine Ranch Water District

Las Gallinas Valley Sanitary District

Las Virgenes Municipal Water District

Long Beach Water Department
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

Sacramento Regional County Sanitation District

San Diego County Water Authority
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 Ynez Community Services District
Scotts Valley Water District
Silicon Valley Clean Water (formerly So. Bayside Sys Auth)

Sonoma County Water Agency

Soquel Creek Water District
South Orange County Wastewater Authority

Stege Sanitary District

Union Sanitary Dist.t (merged w/ East Bay Dischargers Auth.)

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

Western Municipal Water District
Windsor, Town of, CA


Centennial Water and Sanitation District

City of Aurora, CO (Aurora Water)

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

City of Greeley, CO
The Water and Wastewater Utility for the City of Greeley, Colorado.

Denver Water

Eagle River Water & Sanitation District
Metro Wastewater Reclamation District (MWRD)

Platte Canyon Water & Sanitation District

S. Platte Water Renewal Partners (Littleton/Englewood WWTP)

South Adams County Water & Sanitation District


Greater New Haven WPCA

District of Columbia

DC Water (District of Columbia Water & Sewer Authority)


City of Fort Lauderdale, FL

City of Hollywood, FL

City of Orlando, FL

City of St. Petersburg, FL

City of Tallahassee, FL

Hillsborough County Public Utilities


Miami-Dade County

Orange County Utilities Department

Pinellas County Utilities

Reedy Creek Improvement District

Toho Water Authority


Atlanta Department of Watershed Management

City of Augusta, GA

City of Savannah, GA

Clayton County Water Authority

Cobb County Water System

Columbus Water Works

Gwinnett County Department of Water Resources

Macon Water Authority


City & County of Honolulu


Cedar Rapids Water Pollution Control Facilities

City of Ames, IA

City of Des Moines, IA


City of Boise, ID


Greater Peoria Sanitary District

Metropolitan Water Reclam. Dist. of Greater Chicago (MWRDGC)

Sanitary District of Decatur


City of Jeffersonville, IN


City of Lawrence, KS

City of Olathe, KS

Johnson County Wastewater


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. 


City of Bangor, ME

Portland Water District


City of Ann Arbor, MI

City of Grand Rapids, MI

City of Saginaw, MI

City of Wyoming, MI

Gogebic-Iron Wastewater Authority

Great Lakes Water Authority

Holland Board of Public Works

Wayne County Department of Public Services


City of Rochester, MN

Metropolitan Council Environmental Services (MCES)

Western Lake Superior Sanitary District


City of Independence, MO

Kansas City Missouri Water Services Department

Metropolitan St. Louis Sewer District

North Carolina

Charlotte Water
Clean water for healthy living.

City of Durham, NC

City of Raleigh, NC

Metropolitan Sewerage District of Buncombe County

Old North State Water Company

Orange Water & Sewer Authority (OWASA)

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 Dept. of Environmental Protection (NYCDEP)


Avon Lake Municipal Utilities

City of Columbus, 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


City of Tulsa, OK

Oklahoma City Water & Wastewater Utility Department


City of Bend, OR

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

City of Portland, OR

Clean Water Services

Lake Oswego, OR, City of

Medford Water Commission

Water Environment Services (Clackamas County, OR)


City of Philadelphia, 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

Mount Pleasant Waterworks

Spartanburg Water


Cleveland Utilities

Murfreesboro Water & Sewer Department


City of Austin, TX

City of Denton, TX

City of Fort Worth, TX

City of Houston, TX

Dallas Water Utilities

El Paso Water Utilities

San Antonio Water System

Tarrant Regional Water District
Trinity River Authority


Alexandria Renew Enterprises

Arlington County
Arlington County Government, Department of Environmental Services.

City of Richmond, VA

Fairfax County

Fauquier County Water & Sanitation Authority

Hampton Roads Sanitation District (HRSD)

Hanover County

Hopewell Water Renewal

Loudoun Water

Prince William County Service Authority

Rivanna Water & Sewer Authority

Upper Occoquan Service Authority


City of Everett, WA

King County Department of Natural Resources and Parks

Seattle Public Utilities


City of Sheboygan, WI

City of Stevens Point, WI

Kenosha Water Utility

Madison Metropolitan Sewerage District (MMSD)

Milwaukee Metropolitan Sewerage District

New Water (Green Bay Metro Sewerage District)

Racine Water & Wastewater Utility

Wausau Water Works


ACTEW Corporation (WSAA)

Barwon Water (WSAA)

Central Coast Council (WSAA)
Central Highlands Water (WSAA)

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

Goulburn Valley Water (WSAA)

Hunter Water Corporation (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)
Unitywater (WSAA)

Wannon Region Water Corporation (WSAA)

Water Corporation of Western Australia (WSAA)

Western Water (WSAA)
Yarra Valley Water (WSAA)


City of Calgary, Alberta

City of Lethbridge, Alberta

City of Toronto, Ontario

City of Winnipeg, Manitoba

EPCOR Water Services

Metro Vancouver

The Regional Municipality of York


Aarhus Vand A/S
VandCenter Syd (VCS Denmark)

New Zealand

Watercare Services Limited (WSAA)


Public Utilities Board, Singapore