Implementation of Capital Investment Plan Projects at the F.E. Weymouth Filtration Plant
Summary
SCH Number
2003038294
Public Agency
Metropolitan Water District of Southern California
Document Title
Implementation of Capital Investment Plan Projects at the F.E. Weymouth Filtration Plant
Document Type
NOE - Notice of Exemption
Received
Posted
3/19/2003
Document Description
The Metropolitan Water District of Southern California (Metropolitan) proposes to replace the existing basin sludge pumps and install sludge density and blanket level meters to improve sludge removal and transfer to the thickening and dewatering processes; to replace the basin cleaning water supply lines to ensure efficient basin cleaning; to rehabilitate the original washwater reclamation plant, which has not been used since 1990, in order to make it suitable for temporary operation; and to convert Filter Building 2 washwater return pumps to variable frequency drive operation. These four projects address improvements required to reliably treat an increased percentage of State project water (SPW) at the Weymouth Plant than in the past. The increased use of SPW has resulted in the use of higher ferric chloride dosages to remove disinfection by-product precursors (e.g., total organic carbon and bromide). The use of higher ferric chloride dosages has resulted in increased sludge production.
Contact Information
Name
Ana Reyes
Agency Name
Metropolitan Water District of Southern California
Contact Types
Lead/Public Agency
Phone
Location
Cities
La Verne
Counties
Los Angeles
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301, 15302, 15306
Reasons for Exemption
The proposed project involves the funding, final design, minor alterations, and replacement of existing public facilities with negligible or no expansion of use and no possibility of significantly impacting the physical environment. In addition, the proposed project will consist of basic data collection, and resource evaluation activities that do not result in serious or major disturbance to an environmental resource. This may be strictly for information gather purposes, or as part of a study leading to an action that a public agency has not yet approved, adopted, or funded.
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