Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of...
Transcript of Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of...
![Page 1: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/1.jpg)
Dominguez Channel and LosAngeles and Long Beach Harbors
TMDLs
California Regional Water QualityControl Board, Los Angeles Region
US Environmental Protection Agency
September 15, 2005
![Page 2: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/2.jpg)
Today’s Agenda
• EPA and Regional Board Staff• Review work accomplished• Monitoring data and data gaps• Issues - dredging• Process - TAC• Schedule
![Page 3: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/3.jpg)
Review of actions taken
• “heads up” meeting November 2004• Port of LA Estuary Project• Contaminated Sediment Task Force• This TMDL
– Geographic area– EFDC model
![Page 4: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/4.jpg)
Review of TMDL actions taken
• Actions specific to this TMDL– Los Angeles and Long Beach Harbor
Complex Framework for CalculatingTMDLs
– Geographic area– EFDC model
![Page 5: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/5.jpg)
303(d) list
• The 303(d) list: Clean Water Act– the basis of TMDLs
• State Board is updating the list– timing is uncertain
• Anticipate no dramatic changes
![Page 6: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/6.jpg)
303 (d) list Waterbodies
![Page 7: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/7.jpg)
What might this TMDL look like?
• Problem statement• Numeric Targets• Sources• Linkage• Allocations• Margin of safety/Critical conditions• Implementation Plan
![Page 8: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/8.jpg)
What might this ImplementationPlan look like?
• Special Studies• Allocations for point sources
– targets in NPDES permits
• Allocations for non-point sources• Implementation over time
![Page 9: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/9.jpg)
Consolidated Slip 2000
![Page 10: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/10.jpg)
Monitoring Data
• Sediment quality maps• Wet/dry monitoring maps• Discussion of data gaps
Table of data & info available (see handout)�Modeling info/data�Water Quality info/data
![Page 11: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/11.jpg)
Sediment Quality maps - assumptions
• CSTF database from SCCRWP (SQO)• Excluded dredge data & reference stns.• Includes surface data only• Plot mean result for locations w/ more than
one result• Use more recent data record (1996 --)
![Page 12: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/12.jpg)
![Page 13: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/13.jpg)
![Page 14: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/14.jpg)
Wet WeatherAir
![Page 15: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/15.jpg)
Dry Weather
![Page 16: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/16.jpg)
Data gaps discussion
• Gaps = Areas of concern• TACkle this??• Other needs??
![Page 17: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/17.jpg)
Consolidated Slip 2000
![Page 18: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/18.jpg)
Technical Assistance for TMDLDevelopment
• Technical Advisory Committee (TAC)
![Page 19: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/19.jpg)
TAC Stakeholders
• Experienced or willing to work withtechnical issues
• Familiar with local conditions and datacollection
![Page 20: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/20.jpg)
TAC Responsibilities
• Review model• Review existing studies or monitoring
projects/data• Provide resources to expand technical
information
![Page 21: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/21.jpg)
TAC strawman• Regulatory agencies• Modeling consultants• ACOE• City of Los Angeles• County of Los Angeles• Port of Los Angeles• Port of Long Beach• Smaller municipalities• Environmental Group• Dischargers/industry
![Page 22: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/22.jpg)
Implementation Plan
• Technical• Policy
![Page 23: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/23.jpg)
Discussion
• 1) TAC?
• 2) TAC: Effective representation?– Technical expertise?
• 3) Implementation?
![Page 24: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/24.jpg)
Consolidated Slip 2000
![Page 25: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/25.jpg)
Harbor TMDL issues
• TMDLs and Dredging– Principles
• CSTF dredge qty. projections• Options for disposal• Discussion• Other issues??
![Page 26: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/26.jpg)
TMDLs and Dredging• TMDLs as mass balancing exercise• Need to account for dredged material:
- REMOVAL from system- DISPOSAL to system
• Allocations needed to account for specifics oflocal situations, clarify whether anythingdifferent needs to be done on dredging
• TMDLs usually impose no additional burdenson dredging; not meant to duplicate Sec.404/401 permitting process
![Page 27: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/27.jpg)
TMDLs and Dredging Principles
• Dredging allocations more important when: –TMDL analysis at fine geographical scales- TMDL set at shorter time scales
• Gross allocations (e.g., “net zero”) sensiblewhere dredging causes net removal of pollutantsand no/limited local disposal
• In systems with comprehensive dredging strategy(e.g., LTMS), TMDL endorses that and imposesno additional burdens
![Page 28: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/28.jpg)
Contaminated Dredge Qty
• POLA – 1.3 Million m3 (6 yrs)
• POLB – 4.4 Million m3 (5 yrs)
• LAR estuary – 0.05 Million m3 (1 yrs)
(estimated volumes as reference for CSTF LTMS)
![Page 29: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/29.jpg)
Options for Cont.Sediment Disposal
• Land disposal• Temporary aquatic disposal• Treatment (STAR)• Confined Aquatic disposal
– Pilot study (CAD) into Island burrow pit
![Page 30: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/30.jpg)
Consolidated Slip 2000
![Page 31: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/31.jpg)
Schedule/Roadmap
• Initial Activities
• Meetings
• TMDL Schedule subject to modification
![Page 32: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/32.jpg)
Initial Activities
• 303(d) list• identify data• identify people, TAC• beginning of modeling
![Page 33: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/33.jpg)
Upcoming Meetings/Products
• DWAC meetings• SRB meetings• 303(d) list (soon)
• CEQA scoping meeting/checklist (Nov or Dec)
• Project Plan (Jan 06)
![Page 34: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/34.jpg)
Schedule• Dominguez Channel Estuary model 2006• River Models
- LA River (fresh water) model complete- San Gabriel River model ‘07
• Full receiving water model 2007 - ��������������� �����������������
��������� ����������������������� �� �����������������������
•Draft TMDL 2008 - Implementation Draft fall ‘07 - Full draft winter ‘07 or ‘08
• Adoption of final TMDL 2008• EPA approval 2009
![Page 35: Dominguez Channel and Los Angeles and Long Beach Harbors … · • Port of Los Angeles • Port of Long Beach • Smaller municipalities • Environmental Group • Dischargers/industry.](https://reader034.fdocuments.net/reader034/viewer/2022050219/5f65218edf99b16adc7300fa/html5/thumbnails/35.jpg)
California Regional Water Quality Control Board,Los Angeles Region
US Environmental Protection Agency, Region 9
Peter Kozelka:[email protected] (415) 972-3448
Dave Smith:[email protected]
(415) 972-3416
LB Nye:[email protected](213) 576-6785
Sam Unger:[email protected](213) 576-6784