Our Portfolio STV works on some of North America’s largest and most complex infrastructure projects. Filter projects City of Kyle Wastewater Treatment Plant ExpansionView detailSouthwest Water Pollution Control Plant UpgradesView detailOwasso Wastewater Treatment Plant ExpansionView detailSouthwestern Parkway Combined Sewer Overflow BasinView detailWalnut Hill Water Pump Station View detailHefner Water Treatment PlantView detailWastewater Treatment Facility at Moore Air Force BaseView detailVista Ridge Regional Supply Project View detailRed Hook WRRF Resilience UpgradesView detailDairy and Derita Sanitary Sewers Improvements View detailCharlotte Water Little Sugar Creek Tributary SewerView detailCentral Regional Wastewater System Grit Removal Improvements View detailPassaic Valley Sewerage Commission Resilience ImprovementsView detailSanitary Sewer Lines on Rental Car Road at Charlotte Douglas International AirportView detail