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RECREATION AND PARKS

Initial Study and Draft Mitigated Negative Declaration

Project Name: DOCUMENT NO. NG-10-375-RP CHATSWORTH RESERVOIR WETLANDS AND RIPARIAN MITIGATION PROGRAM

Council District: 12 Valley Region

Project Address: Chatsworth Reservoir is located within the northwestern portion of the San Fernando Valley, northeast of the intersection of Roscoe Boulevard and Valley Circle Drive in the City of Los Angeles, Los Angeles County, California. The mitigation property is located outside and generally to the west of the perimeter levee of the reservoir.

Project Description: Republic Services, Inc., formerly Browning-Ferris Industries of California, proposes to establish approximately 44-acres of enhanced and new riparian and wetland habitats within the Los Angeles Department of Water and Power’s (LADWP) Chatsworth Reservoir property to mitigate for the loss of these same habitats at the Sunshine Canyon Landfill near Sylmar, California resulting from its Closure and Extension projects. The Chatsworth Reservoir property covers 1,323 acres in the northwestern portion of the San Fernando Valley in the City of Los Angeles, 411 acres of which comprises the former water supply reservoir; the remaining acreage consists largely of surrounding undeveloped land. The mitigation site, which would be permanently protected through a conservation easement in compliance with regulatory permitting requirements, would be located immediately to the west of the former reservoir levee.

Republic will compensate LADWP for the right to use the 44-acre portion of the reservoir property to create the mitigation site. LADWP will then transfer the mitigation site to the Los Angeles Department of Recreation and Parks (RAP) to ensure its preservation in perpetuity. In addition, up to 96 acres of adjoining reservoir property will also be transferred to RAP for open space and potential future public parkland. Republic will design and construct the wetland/riparian project and maintain and monitor it for five years, providing progress reports during this period to the U.S. Army Corps of Engineers and the California Department of Fish and Game. Once Republic receives written approval from these agencies that its mitigation commitments and permit requirements have been met, the mitigation site will then be maintained by RAP. At this time RAP plans to maintain the property in its natural state; there are no plans to open the area to public access.

Document NO. NG-10-375-RP Chatsworth Reservoir Wetlands and Riparian Mitigation Program
Documents File Type
Chatsworth Reservoir MND PDF (11.2 MB)
Notice of Intent to Adopt a Mitigated Negative Declaration PDF (44 KB)
ATTACHMENTS
Attachment A: Mitigation Plan PDF (9.81 MB)
Attachment B: Chatsworth Reservoir Ordinance PDF (110 KB)
Attachment C: Estimation of Construction Emissions PDF (56 KB)

Attachment D: A Cultural Resources Study for the Proposed Wetland Riparian Restoration Program at Chatsworth Reservoir, Chatsworth, Los Angeles County, CA

PDF (5.54 MB)
Attachment E: Design Concepts and Hydrologic Analysis PDF (110 KB)
Attachment F1: Records Search, California Natural Diversity Database Chatsworth Reservoir Mitigation Planning Area PDF (5.37 MB)
Attachment F2: Characterization of Habitats Chatsworth Reservoir Mitigation Planning Area PDF (32 KB)
Attachment F3: Plant Survey PDF (1.99 MB)
Attachment F4: Biological Survey PDF (45 KB)
Attachment G: City of Los Angeles Department of Water & Power Geologic Hazards Information PDF (6.21 MB)
Attachment H-1: Kleinfelder Phase I PDF (23.2 MB)
Attachment H-2: Kleinfelder Phase II PDF (17.7 MB)
NOTE: The majority of the above documents are in PDF format and must be viewed with Adobe Acrobat Reader. To Download Acrobat Reader, CLICK HERE

Review Locations:

The public review and comments period for proposed Mitigated Negative Declaration will be from October 14, 2010 to November 15, 2010. Copies of the document are available at the following locations:

Department of Recreation and Parks, 221 N. Figueroa Street, Suite 100, Los Angeles 90012
Valley Regional Headquarters, 6335 Woodley Avenue Van Nuys, CA 91406
Chatsworth Branch Library, 21052 Devonshire Street, Chatsworth, 91311

All comments must be submitted in writing no later than 3:00 PM on November 15, 2010, by mailing to: David Attaway, Environmental Supervisor, City of Los Angeles, Department of Recreation and Parks, 221 N. Figueroa Street, Suite 100, Los Angeles 90012.  Facsimiles at (213) 202-2611 will also be accepted up to the comment deadline (please mail the original). For further information, contact David Attaway at (213) 202-2660.