TZA Water Engineers


Water is our primary focus, not a sideline

TZA Water Engineers (TZA) has served the engineering needs of water providers and users in Colorado, providing technical expertise and delivering cost-effective solutions, for over 40 years. In February of 2014, TZA merged with Lamp Rynearson. With over 160 employees in Colorado, Nebraska, and Missouri,  the merger allowed us to expand the engineering services we offer to clients.

Helping communities address their water needs and assisting them in planning for the future is TZA’s passion. With the increased demands being placed upon often scarce surface and ground water resources within the United States, innovative technical solutions are required to properly develop, transfer, manage, and protect our water resources. TZA is staffed with well-versed professionals ready to solve water’s challenges and assist with its opportunities. We will provide you with effective solutions to manage your water supply challenges.


  • Water Rights Engineering
  • Water Supply Planning
  • Water Resources Infrastructure
  • Groundwater
  • Wastewater
  • Drinking Water

TZA Water Engineerings merged with Lamp Rynearson in 2014. We transitioned to a uniform brand under the name “Lamp Rynearson” in 2019. Our clients still have the support of the same great people and service, just under a new name. Learn more about Lamp Rynearson.