Pasadena Extends Arroyo Seco Water Project Comment Period Amid Regulatory Delays

The City of Pasadena has extended the public comment period for the Arroyo Seco Canyon Project Phase II, providing residents additional time to weigh in on the controversial water infrastructure proposal. This extension follows a decision by the Los Angeles Department of Water and Power (LADWP) to delay its official opposition, citing the need for further internal review of the project’s potential environmental impacts on the local watershed.

Why the Comment Period Was Extended

Pasadena officials confirmed the extension to allow for greater community engagement following concerns raised by local environmental groups and neighboring stakeholders. According to the City of Pasadena Water and Power (PWP) department, the project aims to increase the city’s local water supply by capturing and spreading storm water for groundwater recharge.

The extension is designed to address a growing volume of inquiries regarding the project’s scope, which includes the construction of new intake structures and sediment management facilities. By extending the window for feedback, the city intends to ensure that all technical reports and environmental impact assessments are fully accessible to the public before the final planning stages.

The Role of Los Angeles in the Review Process

The involvement of Los Angeles stems from the project’s physical proximity to shared water resources and regional utility infrastructure. While the city initially signaled intent to formally oppose the project, the Los Angeles Department of Water and Power has opted to hold off on a final stance.

Sources within the Los Angeles municipal government indicate that the delay in opposition allows for a more comprehensive technical analysis of how the project might affect downstream water rights and the broader Arroyo Seco ecosystem. This move effectively pauses a potential inter-city conflict, giving both municipalities an opportunity to align on mitigation strategies before the project proceeds to the permitting phase.

What Happens Next for the Arroyo Seco Project

Following the close of the extended comment period, the City of Pasadena will be required to compile and respond to all public feedback as part of the formal environmental review process. This documentation is a legal requirement under the California Environmental Quality Act (CEQA).

Key milestones moving forward include:

• Final Review: PWP must finalize its environmental impact report, incorporating or refuting concerns raised during the public comment period.
• Board Approval: The Pasadena City Council will eventually vote on whether to move forward with the construction phase.
• Regulatory Oversight: State and regional water boards will assess the project for compliance with water quality and habitat protection standards.

Project Context and Community Impact

The Arroyo Seco Canyon Project has been a point of contention for years. Proponents argue that the infrastructure is vital to reducing Pasadena’s reliance on imported water, especially as climate-driven drought conditions persist in Southern California. Opponents, including various neighborhood associations, have expressed concerns regarding construction noise, the removal of native trees, and the potential disruption of recreational areas within the canyon.

The current delay represents a shift in the project’s timeline, providing a buffer for negotiations between stakeholders. Both cities are now under pressure to balance the urgent need for sustainable water management with the environmental preservation goals voiced by the public.