Steve Stewart CCW

Choose Clean Water ConferenceChoose Clean Water ConferenceBest Ideas in Local Clean Water Implementation Plans (WIPsBest Ideas in Local Clean Water Implementation Plans (WIPs))

Steve StewartSteve Stewart

June 5, 2012 June 5, 2012

Baltimore County Department of Baltimore County Department of Environmental Protection and Environmental Protection and SustainabilitySustainability

Scale

Mid – Atlantic Region232,330 Sq. Miles

Chesapeake Bay Watershed64,000 Sq. Miles

State9,805 Sq. Miles15% of the Chesapeake Bay watershed

County606 Sq. Miles6% of Maryland~1% Chesapeake Bay

Baltimore County Stats

Land Area – 387,939 acres Rural – 257,256 acres (66.3%) Urban – 130,683 acres (33.7%)

Population – 789,432 (2005)

Rural – 78,458 (9.9%) Urban – 710,974 (90.1%)

Impervious Cover – 40,928 acres Rural – 8,849 acres (3.4%) Urban – 32,079 acres (24.5%)

Baltimore County

14 Major Watersheds (Maryland 8-digit scale)

7 Tidal Water Bodies

3 Drinking Water Reservoirs

>2,100 miles of streams

>200 miles of tidal shoreline

6 Surrounding Jurisdictions

Tier II Status

20 Stream Segments HaveBeen Identified as HavingTier II Status

A total of 55 miles of streamin Baltimore County haveTier II status

The Tier II streams are distributed in 6 of the Baltimore County 14 8-digit watersheds

Urban Stormwater Strategy

Urban Stormwater - Highlights

Current pace of restoration will not achieve target reductions

2-year restoration milestone set by what is currently in the pipeline

County strategy will account for:– Phase I NPDES – MS4 Loads– Non-regulated stormwater Loads– Construction

Urban Stormwater Strategy Approach

Account for progress made between 2009 and June 30, 2011. Account for past actions not apparently credited

– Stream Restoration– Shoreline Erosion Control

Determine how far current pace will take us (Capacity Analysis) and propose additional implementation actions to fill the gap (Gap Analysis).

Account for previously unaccounted for activities – Urban Nutrient Management law 1998– Fertilizer Use Act of 2011– Illicit Connection Elimination Program– Reduction in SSO due to Consent Decree progress– Redevelopment

Work with State and the CBP to determine BMP efficiencies

July 2011 – June 20132 – Year Restoration Milestones

63,174 linear feet of stream restoration 972 linear feet of shoreline enhancement 669 acres of SWM retrofits/conversions Street Sweeping at current pace Storm drain cleaning at current pace 6,125 acres – urban nutrient management (1998) Watershed Association projects SSO elimination (20% of current average overflow rate) Redevelopment (estimated 200 acres over 2 years) Possible (10 acres urban riparian buffer and 100 acres of upland

reforestation

Enhancements for future years

Credit for Fertilizer Use Act of 2011 3X SWM Retrofit/Conversion Rate 5X Shoreline Enhancement Rate 2X Street Sweeping (based on better targeting) 2X Storm Drain Cleaning (based on better targeting) 3X Riparian Buffer Planting 3X Upland Reforestation Credit for Illicit Conx Program (need to assess how) Higher Credit for stream restoration and Shoreline

Enhancement

January 2012 – December 2013 Programmatic 2 - year milestones

Fiscal:– Develop a Stormwater Utility Fee as required by Maryland

State law. Assure that such funding that is developed addresses both the

capital and operational needs

Better Data– Continue to work with the expert panel on stream restoration

credits– Continue to work with the expert panel on retrofit credits– Work with expert panel to develop a methodology for receive

credits for Illicit Connection removal

July 2011 – June 2013 Programmatic 2 - year milestones

Tracking, Verification, and Reporting:– Develop a tracking mechanism to account for redevelopment pollutant

load reductions– Develop a tracking mechanism to account for green field development

and increase in pollutant loads– Develop a better tracking system to tie SSO reduction with sanitary

sewer system remediation New or revised programs

– Develop a reforestation program that is not dependant on mitigation funds (Use Rural Residential Stewardship and Urban Tree Canopy Models)

– Work with the State to develop and assess the options for an off-set program to address increased loads due to new development

July 2011 – June 2013 Programmatic 2 - year milestones

Coordination– Develop a mechanism for targeting street sweeping based on

Neighborhood Source Assessments conducted for SWAPs – Work to surrounding jurisdictions to develop a “Trading in

Time” Program with WWTPs to temporarily off-set urban stormwater load reductions.

Other Considerations

Targeting of restoration projects based on delivery ratios to the bay

Integration of restoration implementation to meet both the Chesapeake Bay TMDL and local TMDLs

Local Nutrient TMDLs(2 EPA approved, 1 in

development)

Prettyboy Reservoir – 54%Phosphorus Reduction (15% Urban Reduction)

Loch Raven Reservoir – 50%Phosphorus Reduction (15% Urban Reduction)

Chesapeake Bay TMDLNitrogen – 28.8% Urban SWPhosphorus – 43.4% Urban SWReduction

Local Sediment TMDLs(4 EPA approved)

Loch Raven – 25%(based on reducing reservoir sedimentation)

Patapsco – 0 – 15.1%(stream aquatic life)

Gwynns Falls – 23.5 – 44.6%(stream aquatic life)

Jones Falls – 21.9%(stream aquatic life)

Chesapeake Bay – no reduction allocation(water clarity)

Bacteria TMDLs(7 EPA approved)

Patapsco River 12.9 – 56.1%

Liberty Reservoir 64.9%

Gwynns Falls 67.2 – 99.9%

Jones Falls 92.1 – 95.3%

Back River 91.3 – 95.5%

Prettyboy Reservoir 9.5 – 85.3%

Loch Raven Reservoir 0 – 89.8%

Contact Information

Steve Stewart410-887-4488 x240

[email protected]