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Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 1
Total Maximum Daily Loads of Trash and Debris for the Middle Branch and Northwest Branch Portions of the
Patapsco River Mesohaline Tidal Chesapeake Bay Segment, Baltimore City and County, Maryland
Urban Waters Federal PartnershipJune 9, 2015
“Trash TMDL”
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 2
Overview
• Approved by the EPA January 5, 2015.
• Baltimore City and County each have one year to develop an Implementation Plan
• The TMDL is for the Middle Branch and Northwest Portions of the Patapsco River
• The TMDL recognizes that trash comes from upstream, so portions of the Baltimore Harbor and the entire Jones Falls and Gwynns Falls watersheds are included.
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 3
TMDL Reduction
Watershed Annual WLA(lbs/yr)
Annual TMDL(lb / yr removed)
Daily WLA(lb / day)
Daily TMDL (lbs/day removed)
Baltimore Harbor 42,869.4 45,012.9 117.4 123.3
Gwynns Falls 93,519.3 98,195.3 256.2 269.0
Jones Falls 81,107.0 85,162.4 222.2 233.3
Total City 217,495.7 228,370.6 595.8 625.6
Watershed Annual WLA(lbs/yr)
Annual TMDL(lb / yr removed)
Daily WLA(lb / day)
Daily TMDL (lbs/day
removed)
Gwynns Falls 72,831.6 76473.2 199.5 209.5
Jones Falls 45,399.4 47669.4 124.4 130.6
Total County 118,231 124,142.6 323.9 340.1
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 4
TMDL Reduction
• The TMDL requires 100% removal of the baseline load, which is based on WEIGHT (lbs/yr removed). The baseline load is based on data collected in 2010 and 2011.
• The baseload is a combination of Waste Load Allocation (WLA), point source; Load Allocation (LA), non-point source; and Margin of Safety (MOS), 5%.
• Only the WLAs assigned to the MS4 permit will be used to determine the reduction goal for compliance with the TMDL, and therefore the City’s or the County’s MS4 permit.
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 5
Trash Reduction
• The TMDL does not prescribe what measures should undertake to meet the 100% baseline load reduction
• Structural (trash interceptors) and non-structural (street sweeping, education and outreach) can both be employed.
• The TMDL states, “…any upstream practices that are already in place [as of 2011]…are inherently captured in this baseline rate. Therefore, the TMDL value to be removed must be in addition to trash already being removed when the baseline sampling was conducted.”
• WLA calculation methodology will need to be established- What can be counted (enhanced / new practice, geography)- Methodology accounting for ‘trash”- Efficiency of removal
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 6
January-May June July-August September October November December
1st Draft and Review of Sections 1-8
Coordinate with NGOs
Complete Sections 9-11 and 2nd Draft of Sections 1-8
Submit Draft to MDE and BWB for Review
Prepare 3rd Draft
30 Day Public Comment Period
Revise Plan and Prepare Comment Response Document
Baltimore County Schedule
Plan Outline: Section 1: IntroductionSection 2: Legal Authority, Policy, and Planning Framework Section 3: TMDL SummarySection 4: Literature Summary Section 5: Watershed CharacterizationSection 6: Summary of Existing DataSection 7: Summary of Existing Restoration PlansSection 8: BMP Efficiencies Section 9: ImplementationSection 10: Assessment of Implementation ProgressSection 11: Continuing Public Outreach Plan
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 7
• 2 Phase Plan• Phase 1:
– Focus on Education and Outreach, Incentive Programs and Enforcement– Continue Existing Programmatic Actions County Wide (Street Sweeping, Storm
Drain Cleaning, Clean Green 15, Partnerships with NGOs, Enforcement) – Investigate the Potential for Expanding Programs and Developing new
Programs to be Piloted in TMDL Area– Adaptive Plan : Investigate Unknowns Throughout Implementation Process
and Adapt • Contingent Phase 2:
– Trash Trapping Devices – More Costly – Review the Need at 10 Years
Baltimore County Preliminary Strategy
Phase 1
Phase 2
Monitor and Adapt
Goal
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 8
Baltimore City Schedule
April May June July August Sept Oct Nov Dec
1st draft (30%)
Coordinate with NGOs
2nd draft (60%) NGOs 3rd draft/ MDE review
Public Comment
Final WIP
SWAC SWAC SWAC
60% Draft Section 5. Implementation Plan Development
Section 6. Projects, Programs, and Partnerships
Section 7. Tracking and Reporting
Section 8. Adaptive Management
Section 9. Financial Strategy
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 9
Baltimore City Preliminary Strategy
Projects • Modified Inlets• Debris Collectors
Programs• Pollution Prevention (Education)• Street and Alley Sweeping• Preventative Inlet Cleaning• Enforcement
Partnerships• Volunteer Clean-ups• MPA Mitigation• Legislation
Monitor / Evaluate /
Adapt
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 10
ROLE OF URBAN WATERS?
• How does the Trash TMDL fit into the Urban Waters model?
• What are the opportunities for research / monitoring?- Literature review- Information sharing (Los Angeles River Watershed)- Social marketing- BES load reduction calculations / efficiencies research
• Urban Waters (entity) / various partners (ie BES?)
Baltimore City Department of Public WorksBaltimore County Environmental Protection and Sustainability 11
QUESTIONS / COMMENTS / RECOMMENDATIONS?
Baltimore CountyAmelia Atkins
Baltimore CityMark Cameron
