Water & Wastewater Engineering

CAS has worked on over 200 water and wastewater engineering projects since our founding in 1999. We have managed the planning, design and construction of potable, raw, reclaimed, and wastewater infrastructure projects throughout Texas including both large and small diameter pipelines, tunnels, pumping facilities, lift stations, and water treatment plants.


  • Reclaimed Wastewater Studies
  • NPDES Permitting Applications
  • Infiltration/ Inflow Analysis
  • Sanitary Sewer Evaluation Studies
  • Reclaimed Water System Evaluation and Design
  • Water Distribution System Evaluation and Design
  • Water, Wastewater, and Reclaimefj Water System Master Planning
  • Distribution and Collection System Hydraulic Modeling
  • Collection System Design and Rehabilitation
  • Trenchless Technology Design (Jack and Bore, Tunneling, HDD, Pipe Bursting, Lining) Force Main Design
  • Alternative Collection System Design
  • Lift Station Design
  • TCEQ CCN Reports / Applications
  • Water and Wastewater Treatment Facility Evaluation and Design
  • Bidding and Procurement Services