Westside Reservoir Improvement Project

Project Overview

The City of South Pasadena plans to replace the existing 2-million-gallon Westside Reservoir at 821 Glen Place with a new 2.95-million-gallon reservoir. The project also includes replacing the pump station and office building, storage building, and connecting pipelines. Other improvements include repaving the access road, installing new fencing and an automatic gate, and adding landscaping and erosion control.

The project is intended to improve the reservoir’s structural safety and water reliability, while adding storage capacity to support the City’s water system and wildfire response. 

Project Documents

Initial Study and Mitigated Negative Declaration (IS/MND)(PDF, 30MB)

Notice of Intent to Adopt a Mitigated Negative Declaration(PDF, 148KB)

Appendix A - Project Plans(PDF, 2MB)

Appendix B - CalEEMod Input and Results for Air Quality Analysis(PDF, 1MB)

Appendix C1 - Biological Resources Evaluation(PDF, 33MB)

Appendix C2 - SOP Tables(PDF, 313KB)

Appendix D1 - Phase 1 Cultural Resources Inventory(PDF, 12MB)

Appendix E1 - Geotechnical Report(PDF, 14MB)

Appendix E2 - Paleontological Records Search(PDF, 313KB)

Appendix F - Environmental Radius Report(PDF, 2MB)

Appendix G - Ambient Noise Measurement Data(PDF, 2MB)

Appendix H - Limited VMT Analysis(PDF, 891KB)

Environmental Review

The City has prepared an Initial Study/Mitigated Negative Declaration (IS/MND) under the California Environmental Quality Act (CEQA) to evaluate the project’s potential environmental effects and identify mitigation measures.

Project Schedule

Construction is currently estimated to begin in the first or second quarter of 2028. The schedule is preliminary and may change as the project moves through review, approvals, and permitting.

Project Contact

For questions or comments about the project, please submit an inquiry through the City's GoGov portal.