1. County of Los Angeles Flood Control District Pacoima Spreading Grounds Improvement Project Initial Study/Mitigated Negative Declaration Community Meeting Laborers’ Local 300 Union Hall 14800 Devonshire Street, Mission Hills, CA January 28, 2016 7:00 PM

2. Pacoima Spreading Grounds Improvement Project Community Meeting Agenda 1.Welcome and Introductions 2.Purpose of the Meeting 3.Project Description and Need 4.California Environmental Quality Act (CEQA) Overview 5.Summary of the Initial Study/Mitigated Negative Declaration (IS/MND) 6.Opportunities for Public Input

3. Pacoima Spreading Grounds Improvement Project Welcome and Introductions County of Los Angeles Flood Control District (Lead Agency) Chris Stone, Division Head, Water Resources Keith Lilley, Assistant Division Head Ken Zimmer, Program Manager John Bodenchak, Project Manager BonTerra Psomas (Environmental Consultant) Jillian Neary, Project Manager Kristin Starbird, Senior Project Manager Linscott, Law & Greenspan (Traffic Impact Study) Clare Look-Jaeger, Principal Vista Environmental (Air Quality and Noise Analyses) Greg Tonkovich, Senior Analyst

4. Pacoima Spreading Grounds Improvement Project Purpose of the Meeting Information Sharing LACFCD is committed to informing the community about important projects Facilitate CEQA Public Review Provide overview of CEQA Process and the IS/MND Encourage interested parties to provide written comments Comment cards available

5. Pacoima Spreading Grounds Improvement Project Project Description and Need

6. Pacoima Spreading Grounds Improvement Project Los Angeles County Flood Control District Founded in 1915, LACFCD operates and maintains: 14 major dams and reservoirs 27 spreading grounds 39 miles of soft bottom channels 16 rubber dams on flood control channels

7. Pacoima Spreading Grounds Improvement Project City of Los Angeles Water Supply Sources of water: (2013-2014) LA Aqueduct– 10% Metropolitan Water District – 75% Bay Delta Colorado River Groundwater – 13% Recycled Water – 2%

8. Pacoima Spreading Grounds Improvement Project Pacoima Spreading Grounds 165 acre LACFCD owned site First used during the 1932-1933 storm season Average water conservation is 5,200 acre-feet per year Current Issues Insufficient storage capacity Low infiltration rates Potential for flooding on Arleta Avenue.

9. Pacoima Spreading Grounds Improvement Project Project Components: Reconfigure the spreading basins Expand capacity from 530 acre-feet to 1200 acre-feet Remove the low permeability clay Current basin depths: 5 – 9 ft New basin depths: 10 – 14 ft

10. Pacoima Spreading Grounds Improvement Project Project Components: Replace the intake canal with four underground pipes

11. Pacoima Spreading Grounds Improvement Project 1.37 million cubic yards of soil Construction - Spring 2017 18 month duration Project is funded by: $15M LACFCD $15M LADWP $4M state grant from Proposition 84 January – February 2016 March – September 2016 April 2017 – October 2018 MND Public Review Advertise & Award Construction

12. Pacoima Spreading Grounds Improvement Project Project Construction Two haul routes 180 - 240 truck loads per day 8 hour days LACFCD inspector on- site Screening on fences

13. Pacoima Spreading Grounds Improvement Project Country Fare, Incorporated American Sweeping Services Kenworth

14. Pacoima Spreading Grounds Improvement Project Project Updates Project design is being changed to incorporate aesthetic and recreational enhancements Bike path to be constructed along Pacoima Diversion Channel Tubular steel fencing will be installed

15. Pacoima Spreading Grounds Improvement Project Project Updates Project design is being changed to incorporate aesthetic and recreational enhancements Bike path to be constructed along Pacoima Diversion Channel Tubular steel fencing will be installed

16. Pacoima Spreading Grounds Improvement Project Fencing Upgrades

17. Pacoima Spreading Grounds Improvement Project Future Project Rubber dam to be installed at headworks Will improve functionality at headworks over existing radial gate Anticipated for summer 2019

18. Pacoima Spreading Grounds Improvement Project California Environmental Quality Act Purpose and Overview

19. Pacoima Spreading Grounds Improvement Project Purpose of California Environmental Quality Act 1.Inform decision-makers and public about potentially significant environmental effects; 2.Identify ways to avoid or significantly reduce environmental impacts; 3.Prevent significant avoidable impacts through feasible alternatives and/or mitigation; and 4.If a project is approved with significant impacts, disclose to the public the reasons why.

20. Pacoima Spreading Grounds Improvement Project California Environmental Quality Act Process 45-Day Public Review Period January 11, 2016 through February 25, 2016 LACFCD prepares responses to written public comments (Final MND) for Board of Supervisors consideration Board of Supervisors Hearing (Anticipated Summer 2016)

21. Pacoima Spreading Grounds Improvement Project Summary of the IS/MND

22. Pacoima Spreading Grounds Improvement Project What Must an MND Include? 1.Environmental setting (baseline for impact analysis) 2.Project location and description 3.Identification of environmental impacts by use of a checklist, matrix, or other method. 4.Environmental impact analyses based on substantial evidence (including Mitigation Measures, if necessary)

23. Pacoima Spreading Grounds Improvement Project Public Outreach on Environmental Issues Areas of Concern: Informed the County of areas of concern, such as dust, noise, traffic congestion, and diesel emissions Examples: Dustand diesel emissions3.3 Air Quality Truck and equipment noise3.12 Noise Truck traffic3.16 Transportation and Traffic

24. Pacoima Spreading Grounds Improvement Project Technical Reports used to Prepare the IS/MND o Air Quality, Greenhouse Gas Emissions, and Health Risk Assessment (HRA) o Biological Technical Report o Cultural Resources Investigation (including historic) o Phase I and Phase II Environmental Site Assessments o Noise Impact Analysis o Traffic Impact Study

25. Pacoima Spreading Grounds Improvement Project Project Actions to Reduce Environmental Impacts Regulatory Requirements (RRs) Applicable local, State, or federal regulations that are required independently of CEQA review Mitigation Measures (MMs) After consideration of RRs, additional measures required to avoid or reduce the effect of a significant impact All environmental impacts would be either less than significant, or less than significant with mitigation. No significant unavoidable impacts.

26. Pacoima Spreading Grounds Improvement Project Environmental Topics with No Impacts or Less than Significant Impacts Aesthetics Agriculture & Forestry Resources Air Quality Geology & Soils Greenhouse Gas Emissions Hazards & Hazardous Materials Hydrology & Water Quality Land Use & Planning Mineral Resources Population & Housing Public Services Recreation Utilities & Service Systems

27. Pacoima Spreading Grounds Improvement Project Environmental Topics with Impacts Less than Significant after Mitigation Biological Resources Cultural Resources Noise Transportation & Traffic

28. Pacoima Spreading Grounds Improvement Project AQ-1: SCAQMD Rules 402 (Nuisance) and 403 (Fugitive Dust Reduction) CUL-1: Encountering archaeological resources CUL-2: Encountering human remains HAZ-1: CCR Title 22 (Hazardous Material Use, Disposal, Storage, Transport) HYD-1: NPDES Permit (Storm Water Quality-SWPPP) TRA-1: Construction traffic control (LACDPW Greenbook) UTL-1: C&D Debris Recycling and Reuse (County Code Chapter 20.87) Regulatory Requirements

29. Pacoima Spreading Grounds Improvement Project SCAQMD Rule 403 Measures: Water all exposed areas on active sites at least 3 times per day. Pre-water all areas prior to clearing and soil moving activities. Pre-water all material to be exported prior to loading, and either cover all loads or maintain at least 2 feet of freeboard Restrict traffic speeds on unpaved roads to 15 mph or less. Water dirt roads at least once per every 2 hours of active operations or apply a chemical stabilizer.

30. Pacoima Spreading Grounds Improvement Project SCAQMD Rule 403 Measures (continued): Install and maintain signage around the project site that provide a contact person and phone number to call when if dust is leaving the project site, and a phone number for the SCAQMD compliance office. Utilize one or more devices to remove material from vehicle tires and undercarriages before leaving project site. Do not allow track out of material to extend more than 25 feet onto a public roadway and remove all track out at the end of each workday. High Wind Fugitive Dust Control Plan must be prepared.

31. Pacoima Spreading Grounds Improvement Project BIO-1: Migratory bird and raptor protection CUL-1: Paleontological monitor training NOI-1: Sound wall in headworks area TRA-1: Haul trucks shall not travel solely to Cal Mat Pit Mitigation Measures

32. Pacoima Spreading Grounds Improvement Project Lee Brothers Fencing Group Big River

33. Pacoima Spreading Grounds Improvement Project Pacoima Branch Library, 13605 Van Nuys Boulevard, Los Angeles, CA LACFCD, 900 S. Freemont Avenue, Alhambra, CA Download at: http://dpw.lacounty.gov/wrd/Projects/PacoimaSG http://dpw.lacounty.gov/wrd/Projects/PacoimaSG Provide written comments (e-mail or mail) by 5:00 PM, February 25 th Attn: John Bodenchak County of Los Angeles Department of Public Works Water Resources Division 900 S. Fremont Avenue Alhambra, CA 91803 E-mail: SpreadingGrounds@dpw.lacounty.gov SpreadingGrounds@dpw.lacounty.gov Where Can I Review the IS/MND?

34. Thank You For Attending Please take a Comment Card