County Sanitation Districts of Los Angeles County, CA
Joint Water Pollution Control Plant
Gwinnett County of Public Utilities, GA
Jackson Creek Water Reclamation Facility
North Shore Sanitary District, IL
Waukegan Sewage Treatment Plant
Urbana & Champaign Sanitary District, IL
Southwest Wastewater Treatment Plant
Louisville & Jefferson County Metropolitan Sewer District, KY
Cedar Creek Wastewater Treatment Plant
City of Philadelphia Water Department, PA
Southeast Water Pollution Control Plant
Southwest Water Pollution Control Plant
Spartanburg Water System & Sanitary Sewer District, SC
Lawson Fork Wastewater Treatment Plant
City of Houston, Public Works & Engineering/Public Utilities Group, TX
Metro Central Wastewater Treatment Plant
WCID-III Wastewater Treatment Plant