Authorize Four Improvement Project at the Robert B. Diemer Water Treatment Plant
Summary
SCH Number
2011108319
Public Agency
Metropolitan Water District of Southern California
Document Title
Authorize Four Improvement Project at the Robert B. Diemer Water Treatment Plant
Document Type
NOE - Notice of Exemption
Received
Posted
10/28/2011
Document Description
The Metropolitan Water District of Southern California proposes to authorize four project at the Robert B. Diemer Water Treatment Plant: (1) Final Design of water sampling system improvements; (2) Final design and installation of filter process instrumentation; (3) Final design and construction of an overflow monitoring system for residual solids and wastewater; and (4) Final design and construction of supernatant pump station improvements. Improvements are needed for sample lines, sample pumps, and on-line analyzers to enable reliable and rapid response to changing water quality conditions. Aging turbidity meters at the Diemer Plant have exceeded their usual service life and need to be replaced to provide continuous monitoring of filter operations and water quality. The overflow monitoring system will include installation of electrical conduits and level switches in manholes and connection with existing remote terminal units to alert plant staff to high liquid levels in the monitored manholes. The supernatant pump station will be rehabilitated by replacing and/or refurbishing old. Unreliable turbine pumps and corroded steel pump columns.
Contact Information
Name
Connie Yee
Agency Name
Metropolitan Water District of Southern California
Contact Types
Lead/Public Agency
Phone
Location
Cities
Yorba Linda
Counties
Orange
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
C:1,2,3,4,11;S:15301,15302,15303
Reasons for Exemption
The proposed project consists of the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration of existing public or private structures, facilities, mechanical equipment, or topographic features, involving negligible or no expansion of use beyond that existing at the time or the lead agency's determination.
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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.