Cal Trans District 11 Headquarters Central Plan - Chiller Replacement with Variable Pumping and Controls


SCH Number
Lead Agency
Water Resources, Department of (California Department of Water Resources)
Document Title
Cal Trans District 11 Headquarters Central Plan - Chiller Replacement with Variable Pumping and Controls
Document Type
NOE - Notice of Exemption

Document Description
The project proposes an Energy Conservation Measure (ECM) for this facility, which includes three inter-related parts. Replace the existing 102-ton air cooled screw chiller with a new 210-ton, water cooled "TurboCor" chiller, complete with a new condenser water pump with variable frequency drive (VFD) and piping and associated equipment to be connected to the existing condenser water system that is serving the centrifugal chillers. Convert the existing primary-secondary pumping system to a "variable primary" pumping system. This consists of installing VFDs on the constant volume pumps including the primary chilled and condenser water pumps. Install a control system to optimize the central plant chilled and condenser water equipment, including all chillers, cooling towers, and pumps. The system will interface with the existing Metasys system and will be programmed to achieve optimal chiller sequencing based on actual loading and performance models. This ECM will provide energy efficiency upgrades. The existing units are corroded and inefficient. Replacing the units with new equipment will result in energy savings, because the current units are less efficient that the modern equipment. The construction contractor will follow any hazardous material waste handling and disposal with respect to appropriate local, state, and federal rules/regulations.

Contact Information
Adbi Farhang
California Department of Water Resources
1416 Ninth Street
Sacramento, CA 95814

Phone : (916) 376-5314


San Diego
San Diego

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301, 15302
Reasons for Exemption
The project is consistent with the original proposed usage and meets the requirements set forth in Sections 15301 and 15302, and that no exceptions to the exemptions are applicable. The project will have negligible effect on resources in the area and no expansion of use beyond that currently existing.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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