Water Practice

CP&Y is proud to provide leading-edge water and wastewater solutions that enable our clients to be responsible stewards of the earth’s water resources – not to mention taxpayer dollars. Since 1980, we have designed over 100 water- and wastewater-related facilities with water capacities up to 540 million gallons per day and wastewater capacities up to 189 million gallons per day. Our firm was founded on water and wastewater engineering projects. In addition, CP&Y has experience designing water transmission systems, collection systems, pump/lift stations, pipelines and water storage projects.

Bachman Water Treatment Plant

CP&Y designed the expansion to the WTP and assisted with permitting. The improvements included a new low-service pump station, new raw water transmission pipeline, rehabilitation to the primary and secondary flocculation / sedimentation, modifications to the filtration, chlorine, ferric sulfate, polymer, and powdered activated carbon systems, a new ammonia and lime feed system, and a new ozone system. In addition, a new high-service pump station was designed. This expansion brought the WTP capacity to 150 MGD.

Forney Raw Water Emergency Pipeline

CP&Y designed an emergency project for DWU after 600,000 gallons of
gasoline containing MTBE was spilled into Caddo Creek in East Texas,
and consequently, contaminated Lake Tawakoni, a vital water source
for two-thirds of Dallas’ water supply. The 96-inch pipeline transmitted
water from Lake Ray Hubbard to the East Side WTP. The challenge was
in designing and constructing such a project in a short time-frame. Our
engineers worked concurrently modeling pump and pipeline alternatives,
zeroing in on the best alternative, and designing and permitting the project. This project was designed and constructed, and brought online within 3 months.

3-MG Ground Storage Tank

The City of The Colony has used CP&Y’s engineering services on several projects. CP&Y provided the design for a 3-MG, prestressed concrete ground storage tank. Design services included preliminary and final design. Bidding and contract award, and construction phase services we also provided.

Central Regional Wastewater System Phase IV Improvements

CP&Y provided evaluation, design, bidding and construction services
associated with the expansion of Central Regional Wastewater System’s grit removal facilities. The improvements included installation of five 70-MGD vortex grit basins, six new grit pumps, and two new grit classification units, providing a total peak flow capacity of 350 MGD. CP&Y evaluated several expansion alternatives to determine the most costeffective configuration that increased the capacity of the system and also reduced overall odor emissions, a primary goal of the project.

Cadiz Pump Station and West Bank Interceptor

CP&Y designed renovations for this 50-year-old lift station that serves the downtown area of Dallas. Emergency repairs were necessary after an electrical failure caused the release of untreated wastewater into the environment. Since these were emergency improvements, CP&Y mobilized and responded quickly to this crucial project. Along with this project, CP&Y was responsible for rehabilitation/ replacement of two large coarse screens, controls and other equipment as well as the electrical system.