SCH Number 2024051129

Project Info

Title

Idyllwild Wastewater Treatment Plant Improvement Project

Description

The purpose of the project is to modernize the Idyllwild WWTP to meet existing and future discharge requirements efficiently and consistently for the Idyllwild community. The project is needed because the existing WWTP is old and beyond its useful life and needs to be upgraded to meet current wastewater standards and processes. The most urgent issue the WWTP faces is the aging infrastructure, lack of redundancy, and declining treatment efficiency at the existing WWTP. Lack of redundancy makes regular maintenance activities difficult to perform and limited to those that can occur within a 24-hour period. Although the flow can be diverted to the existing EQ (equalizing) basin for a brief period for minor repairs, capital maintenance and longer repairs cannot currently be accomplished. Furthermore, adequate removal of biological oxygen demand (BOD), total suspended solids (TSS), and nitrogen is occasionally not being achieved with the existing biological treatment system. Variations in BOD and TSS loading, as well as wet weather events, overload the single treatment unit, resulting in violations of permit regulations.

3 documents in project