Frequently Asked Questions 

Video of construction progress, July 2022:

For construction related concerns, please contact the City's contracted Construction Manager Pierre Gouley, pierre.gouley@hdrinc.com.

Project Background

The Graham Hill Water Treatment Plant's four post-tensioned concrete tanks are nearly 60 years old. The filtered water, reclaim, and sludge storage tanks are visually deteriorating as the tanks approach the end of their service life. This project will replace these tanks and their related equipment, piping, and other appurtenances. A new electrical building and several retaining walls will also be constructed, and the existing access roadway to the site will be widened as well. 

Project Objectives

• Construct three new structurally acceptable concrete tanks
• Increase operational flexibility and redundancy with improvements to pump stations and piping layouts

Project Components

• Replace the 1.0 MG filtered water storage tank
• Replace the 0.7 MG wash water reclamation tank
• Replace the 0.7 MG sludge storage tank
• Replace and relocate the reclaim pump station and wash water supply pump station
• Install new decant port effluent pump station and sludge pump station vault
• Construct new electrical building
• Widen existing roadway

Full size plan view here.

 Project Schedule

Construction Impacts: Work to be performed in an active water treatment plant.

Project Documents

You can find the Initial Study and Proposed Mitigated Negative Declaration for the project on the Environmental Documents page.

Project Contact

Matt Zeman, mzeman@santacruzca.gov 

212 Locust Street, Santa Cruz, CA 95060