Department of Public Works Submittal of Comments to the County of Los Angeles on the Draft Environmental Impact Report and Proposed Alternatives for the Devil’s Gate Reservoir Sediment Removal and Management Project December 16, 2013

Department of Public Works Summary Master Plan adopted Station Fire  160,000 acres  Nearly 100% of Devil’s Gate tributary area – Winter storms  Deposit 1.3M cubic yards of sediment – Project planning and DEIR  DEIR released October 23, 2013  Comments due January 6,

Department of Public Works City Review Review and comments by 8 departments City Attorney’s Office review of City’s role LA County Presentation to Commissions and Committees  Municipal Services Committee  Environmental Advisory Commission  Hahamongna Watershed Park Advisory Committee 3

Department of Public Works Staff Comments 100+ comments from 8 Departments Comments in all sections of the DEIR  Requests for additional information  Requests for further study  Clarifications on applicable standards 4

Department of Public Works 5 Next Steps 1.Technical review of project  Academic expert with suitable background  Identification of environmental engineering firm may be difficult  Seek input on common DEIR review questions  What is true downstream flood risk?  Is project scope too large?  Can more gradual project approach be effective?  How frequently have storms associated with DDE occurred? Likelihood of occurring?

Department of Public Works Next Steps 2.Devil’s Gate Dam Sediment Removal Working Group  Key community members and City staff  City Manager to select members based on recommendations from City Council with Mayor’s input  Purpose – Work with County staff to develop City’s preferred alternative plan 6

Department of Public Works Next Steps 3.HWPAC role  Meet on as needed basis  Review additional data & documents from technical review  Facilitate additional presentations as necessary  Review Task Force recommendations Timing  Retain technical expert by February  Conduct review over following 2 to 3 months 7

Department of Public Works 8

Devil’s Gate DEIR 9 Questions?

Department of Public Works Easement Area

Department of Public Works HWPMP vs. Environmentally Superior Alternative

Department of Public Works Proposed Project

Department of Public Works Alternative 1

Department of Public Works Alternative 2

Department of Public Works Alternative 3

Department of Public Works Habitat Establishment (HWPMP)

Department of Public Works Proposed Grading (HWPWP) Developed jointly between LCDPW & City of Pasadena, 2003

Department of Public Works Oak Grove Drive Slip Lane (HWPMP)

Department of Public Works Trails (HWPMP)

Department of Public Works Water Elevations (HWPMP)

Department of Public Works Devil’s Gate Dam (HWPMP)