Project Overview
The Alliance is replacing our nearly 30-year-old ultraviolet (UV) disinfection system used to disinfect treated wastewater before it reaches the Columbia River. This system is located at the Salmon Creek Treatment Plant, which serves approximately 120,000 people in central Clark County. UV disinfection benefits public health by reducing the release of potentially disease-transmitting pathogenic organisms to waterways.
We are replacing this system because it is near the end of its useful life and is not as energy efficient as newer systems.
Benefits of the new system:
- More reliable: protects water quality of flow reaching the Columbia River
- More energy-efficient: reducing the plant’s greenhouse gas emissions
- Fewer repairs needed
- Lower operating costs: helps keep rates affordable
This project is funded in part by the U.S. Environmental Protection Agency.
Before: Existing UV System
After: New UV System