Lower Monumental Dam

PBS provided water quality verification testing for a contractor involved in the construction of spillway improvements at Lower Monumental Dam, located on the Snake River, near Pasco, Washington. The purpose of this project was to monitor water quality for protection of salmon and other fish species concurrent with underwater concrete work at the dam. We provided the necessary water quality sampling plans and monitoring to meet U.S. Army Corps of Engineers requirements for water quality during specific project phases. We provided continuous monitoring for several criteria (conductivity, pH, temperature, etc.) at three locations within the river. The continuous monitors were deployed to the bottom of the Snake River.

U.S. Army Corps of Engineers
Pasco, Washington

Scope of Services:

  • Sampling & Analysis Plan
  • Continuous In-Stream Monitoring
  • QA/QC Review
  • Reporting