The Reliability Improvement Project is aimed at retrofitting, upgrading and/or replacing key equipment that is reaching the end of its natural life, addressing the areas of raw water ozone, flocculation and sedimentation. Filtration and redundant disinfection.
The work will also increase the plant’s treatment capacity from 80 million gallons of water a day to 100 million gallons a day and help the district meet increasingly stringent standards for water quality, seismic stability and safety.
The dust monitoring report is now available
Valley Water's first dust monitoring report is ready for review under this page's "Reports and Documents" tab. These reports will be consistently updated.
Sound and vibration reports are now available
All construction activities must comply with the Town of Los Gatos' noise ordinance. Our noise level monitoring is ongoing; data for that and vibrations are available under this page's "Reports and Documents" tab. These reports will be consistently updated. Note that backup alarms on construction vehicles are required by the Occupational Safety and Health Administration (OSHA) and cannot be turned off. These vehicles, however, will not be in use after 8 a.m.
Check out the clarifier demolition!
Clarifier demolition began at the treatment plant on March 11. As of the end of March, 35 percent of the clarifiers have been demolished with more than 204 tons of steel and concrete hauled away. Demolition is expected to be completed in June 2024.
Public meeting held Feb. 29, 2024
Thirty-five neighbors of the Rinconada Water Treatment Plant attended Valley Water’s Feb. 29 public meeting to hear about upcoming construction plans and learn about plant operations during a brief facility tour. To view the meeting on Valley Water's YouTube channel, click here
Public meeting videos available on YouTube
Valley Water keeps a video library of its past community meetings on its YouTube channel at https://www.youtube.com/watch?v=K1jDvRO4q2A
For any questions, please contact the water treatment plant's neighborhood liaison, Tony Mercado, at 408-630-2342 or via email at [email protected]
Dust Monitoring Reports03.15.2024
Vibration Monitoring Reports
Noise Monitoring Reports
Feb. 23, 2024: Public meeting presentation
RWTP EIR Addendum 1: Work Schedules
The Reliability Improvement Project will replace or upgrade all major plant components and increase Rinconada’s treatment capacity to 100 million gallons of water a day. These enhancements will also result in improved taste for your drinking water. The Project includes the design and construction of new facilities, including raw water ozonation, flocculation and plate settler clarification and dual media filtration. This work will also help the district meet increasingly stringent standards for water quality, seismic stability and safety.
This completed project will use the following steps in drinking water treatment:
- Raw Water Ozone
- Flocculation and Sedimentation
- Filtration
- Redundant disinfection
The Rinconada Water Treatment Plant is Valley Water’s oldest treatment plant, having provided continuous and reliable service since 1967. While Rinconada primarily serves the west side of Santa Clara County, residents across the county contribute to the project funding through water rates.