Machado Lake Ecosystem Routine Vegetation Management and Maintenance Program

2 Documents in Project


SCH Number
Lead Agency
Los Angeles, City of (City of Los Angeles)
Document Title
Machado Lake Ecosystem Routine Vegetation Management and Maintenance Program
Document Type
NOD - Notice of Determination

Document Description
The project proposed to alter ~10 acres of near shore and open water habitat to perform comprehensive vegetation management at Machado Lake. The project boundaries include the lake area as well as the surrounding areas consisting of the Wilmington Channel and riparian woodland to the north, the east and west shorelines, and the seasonal freshwater marsh downstream of the Machado Lake dam. The primary purpose of the project is to reduce excessive stands and mats of aquatic vegetation around the perimeter of the lake, primarily consisting of water primrose (Ludwigia ssp.) and to a lesser extent cattails and tules, to a manageable amount. The proposed project would restore at least a ratio of 60:40 of open water vegetation in the lake. RAP shall continue its practice of treating excessive vegetation with a combination of chemical and mechanical control methods. Becuase Ludwigia propagates when fragmented, the emergent vegetation is treate repeatedly with an aquatic herbicide and subsequently dead plant meterial is removed from the lake with mechanical harvesters. To guarantee the success of the Ludwigia removal project, the remaining root masses along the shoreline will be extracted. Additional maintenance activities that support the primary project purpose include clearing of trash and debris; removing fallen, dead or dying trees and shrubs; trimming of branches and tree limbs; mowing along the shoreline and lake edge; removing near shore vegetation and conducting brush clearance. Removal of a limties amount of invasive plants and revegetating those locations with native species will also be conducted on a routine basis; these management activities will be adopted as mitigation measures to reduce potential impacts to biological resources to a level of less than significant. Heavy equipment including the AquaMog, mechanical harvester, cookie cutter, and hand tools, will be used for the vegetation removal (primarily Ludwigia) in the lake. Other maintenance activities will utilize primarily hand tools. Dump trucks will be necessary for removal of large volumes of trash. Tree trimming trucks will also be utilized on roadways.

Contact Information
Jamie Jackson
Department of Fish and Game
South Coast Region 4949 Viewridge Avenue
San Diego, CA 92123

Phone : (626) 296-3430


Los Angeles Los Angeles, City of
Los Angeles
Cross Streets
Located on Vermont Avenue between Pacific Coast Highway and Anaheim Street
Parcel #
State Highways
CA-1, CA-213, I-110
Los Angeles Harbor College, Normont ES, 232nd Place ES, Catskill
Dominguez Channel, Wilmington Drain, Machado Lake
Other Location Info
City/Nearest Community: Harbor City
Other Information
Schools: Catskill ES, Wilmington MS, Broad Avenue ES, Gulf ES, Fries ES, Banning HS, Hawaiian ES, Cooper HS, Taper ES, Dodson MS, Eshelman ES, Fleming MS, Narbonne HS, President ES, Harbor City ES, St. Margaret Mary School and various other private elementary schools and daycare centers.

Notice of Determination

Approving Agency
Approving Agency Role
Responsible Agency
Approved On
Final Environmental Document Available at
DFG 4949 Viewridge Ave San Diego, CA 92123


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA

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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