Rinconada Water Treatment Plant Reliability Improvement Project

3 Documents in Project

Summary

SCH Number
2014012012
Lead Agency
Santa Clara Valley Water District
Document Title
Rinconada Water Treatment Plant Reliability Improvement Project
Document Type
NOD - Notice of Determination
Received

Document Description
The District proposes to improve the existing water treatment train at the aging Rinconada Water Treatment Plant (RWTP) to improve drinking water quality and reliability of operations. The Project proposes demolition/removal of many of the existing treatment facilities and processes and reconstruction of a new state-of-the-art water treatment facility within the existing water treatment plant property, while keeping the plant running at all times. The four principal modifications to the RWTP are as follows: 1) Addition of raw water ozonation facilities and processes; 2) Replacement of the existing water clarification process/facilities with conventional flocculation and sedimentation processes with plate settlers; 3) Removal and replacement of the water process filters; and 4) Increase in plant capacity from 80 million gallons per day (mgd) to a maximum of 100 mgd to provide an increase in peaking capacity for plant reliability. In plain terms, the project is the systematic tear down of much of the existing steel and concrete structures (old water treatment facilities and processes) to reconstruct a new state-of-the-art water treatment facility on the existing water treatment plant property, while keeping the plant running at all times. The project includes the onsite temporary conversion of the lower sludge drying bed to a construction staging area and the offsite-temporary add 30-50 construction worker parking spaces during construction. The project includes green development features such as solar panels, a truck tire-wash (to keep trucks from tracking soil into the streets during construction), and recycling of construction/demolition debris (minimum 50%). Construction duration is expected to last five to seven years due to phasing and requirements to keep the plant running during construction. Construction is slated to start in 2015.

Contact Information
Michael F. Coleman
Santa Clara Valley Water District
5750 Almaden Expressway
San Jose, CA 95118

408-630-3096

Location

Coordinates
37°15'23.9"N 121°59'7.52"W
Cities
Los Gatos
Counties
Santa Clara
Cross Streets
More Avenue and Granada Way
Zip
95032
Total Acres
38
Parcel #
409-01-022, 407-34-002, 407-34-003, 407-10-007, 407-24-001
State Highways
SR 9, 85, 17
Railways
Existing
Schools
Rolling Hills MS, Marshall Lane ES, Westmont High
Waterways
Los Gatos Creek, San Tomas Aquino Creek

Notice of Determination

Approving Agency
Santa Clara Valley Water District
Approving Agency Role
Lead Agency
Approved On
Final EIR Available Location
Santa Clara Valley Water District 5750 Almaden Expressway San Jose, CA 95118

Determinations

(1) The project will have a significant impact on the environment
Yes
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A Statement of Overriding Considerations was adopted for this project
Yes
(5) Findings were made pursuant to the provisions of CEQA
Yes
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