Repairs at Service Connections OC-44 & OC-44B Along the East Orange County Feeder No. 2 & Installation of Acid Storage & Feed Systems at the Robert B. Diemer
Summary
SCH Number
2003068074
Public Agency
Metropolitan Water District of Southern California
Document Title
Repairs at Service Connections OC-44 & OC-44B Along the East Orange County Feeder No. 2 & Installation of Acid Storage & Feed Systems at the Robert B. Diemer
Document Type
NOE - Notice of Exemption
Received
Posted
6/4/2003
Document Description
The Metropolitan Water District of Southern California (Metropolitan) proposes to replace the packing on the turnout valve and make repairs to the motor operator at Service Connection OC-44A. At Service Connection OC-44B, Metropolitan proposes to repair small leaks on the recirculating line and sample line valves. In order to complete repairs, Metropolitan will dewater the Irvine Ranch Water District's San Joaquin Reservoir outlet line and a portion of Mesa Consolidated Water District's line; treated water will be dechlorinated and discharged into a natural drainage. Metropolitan also proposes to install temporary influent acid storage and feed systems at the Diemer and Weymouth plants to reduce the amount of sludge produced by the water treatment process. At the Diemer Plant, the tanks and pump will be located in the existing chlorine shed and chemical trucks will offload at the existing chemical unloading pad. At the Weymouth Plant, the tanks and pump will be located in a containment area near the point of injection east of the reservoir. All storage and unloading will be properly contained and designed for 93 percent sulfuric acid.
Contact Information
Name
Deirdre West / Ana Reyes
Agency Name
Metropolitan Water District of Southern California
Contact Types
Lead/Public Agency
Phone
Location
Cities
Irvine, La Verne, Yorba Linda
Counties
Los Angeles, Orange
Notice of Exemption
Exempt Status
Emergency Project
Type, Section or Code
Sec 15301, 15303, 15304
Reasons for Exemption
The proposed project consists of the operation, repair, maintenance, or minor alteration of existing public structures, facilities, mechanical equipment, or topographical features, involving negligible expansion of use beyond that existing at the time of the lead agency's determination. The proposed project also consists of the construction and location of limited numbers of new, small facilities or structures; installation of small new equipment and facilities in small structures; and the conversion of existing small structures from one use to another where only minor modifications are made in the exterior of the structure. The proposed project also consists of minor alterations in the condition of land, water, and/or vegetation, which do not involve removal of healthy, mature, scenic trees.
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