Post-Construction Stormwater Management in New and Redevelopment

Appendix F

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Welcome to the Webcast

• Continuing Education Credits –We are offering CEUs for our watershed and stormwater management webcast series. A registered attendee must watch the entire webcast to be eligible to earn the CEU. A pdf Certificate of Completion will be sent out after webcast to the person who registered for the webcast. The Certificate has a blank name field so that each attendee at your location can receive a certificate. While our training programs are developed with IACET criteria in mind, the varying nature of certification requirements for Webcast 1: Reimagining the Parking Lot & each state means we cannot guarantee that CEU’s will be awarded and it is up to the individual to determine ifs CEU’ or PDH’s will be Roadway as a Stormwater Practice awarded based on the policies of their local certifying board. Email [email protected] with questions. • Resources –After the webcast, we will email a resources sheet, speaker contact information, and the presentation.

To Adjust How the Slides Appear on Your Screen –To make the slide area larger, go to Full Screen under the Meeting Tab.

To Answer a Poll Question – Tim Van Seters, M.E.S., H.B. Sc Dave Hirschman Polling questions appear during the Manager, Sustainable Technologies Evaluation Program Center’s Program Director webcast. To answer a poll question, click Toronto and Region Conservation on the radio button to the left of your answer and click submit. Do not type your answer in the chat box.

To Ask a Question – The right corner of the screen contains a Q&A chat box. Type your question in the box and click on the send question icon to submit it. We will try to answer as many questions Tom Price, P.E . Rob Roseen, PhD., D.WRE., P.E . as possible during and after the webcast. Director of Water Resources Engineering Associate Water Resources Engineer Conservation Design Forum Geosyntec Consultants

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POLL QUESTION #2 POLL QUESTION #1 I work for a • Phase I community How many people are participating today • Phase II community in the webcast at your location? • Municipality a) Just me • State government b) 2 to 5 • Federal government • Private consultant c) 6 to 10 • Nonprofit organization d) More than 10 • University • Other (tell us in the chat box)

Webcast Outline The Old Days

• Introduction, ASCE Specifications (Dave) •Case Studies, Application, Design, Construction, and Costs (Tom) •Q & A • Planning, Implementation, & Research at the Regional Scale (Tim) •Q & A •Permeable Asphalt Case Study (Rob) •Q&A • Conclusions and Resources

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Modern Times Permeable Pavements

Permeable Interlocking Pervious Concrete Porous Asphalt Concrete Pavers (PICP) (PC) (PA)

Concrete Grid Plastic Reinforced Others (XeriPave, Pavers (CGP) Grid Pavers Flexi-Pave)

ASCE Permeable Interlocking Concrete ASCE Permeable Interlocking Concrete Pavement Subcommittee Pavement Subcommittee

• Developing standard design guideline for permeable interlocking concrete pavement. • Intended to address problems that have arisen due to poor design or construction • Rutting • Settlement • Clogging • Guidelines for various drainage, traffic, and subgrade conditions • Will not replace local specifications, but will be a good source for more detailed information • Scheduled draft release in early 2015.

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Permeable pavement Webcast Outline Systems

• Introduction, ASCE Specifications • Case Studies, Application, Design, Construction, and Costs (Tom) • Q & A

• Planning, Implementation, & Research at the Regional Scale (Tim) EGRA Stone •Q & A •Permeable Asphalt Case Study (Rob) •Q&A • Conclusions and Resources

ECO Stone

CONSERVATION DESIGN FORUM

West Union Permeable Pavement – Iowa’s Green Street Pilot Project Green Pilot Streetscape Project Presentation Outline A Sustainable Vision for West Union • Case Studies • Benefits • Hydrologic Design

• Engineering Design The City of West Union Main Street West Union • Construction Considerations Iowa Department of Economic Development

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CONSERVATION DESIGN FORUM CONSERVATION DESIGN FORUM Charles City, Iowa

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Oelwein, Iowa

CONSERVATION DESIGN FORUM CONSERVATIONPortland, Oregon DESIGN FORUM

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Stormwater Materials

Street Permeable Paver: Sidewalk Permeable Paver: Bioretention Areas Eco‐Optilock Eco‐Prioria

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Street Section

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Summary of Results

Pre-Project Post-Project % Reduction Carol Stream Park District: Threshold Event 0.05" 1" - LEED Silver Recreation Center 2-Year Event (2.91" rain) Runoff Volume (inches) 2.2 1.38 37% Peak Flow (cfs) 19.2 3.8 80% 10-Year Event (4.31" rain) Runoff Volume (inches) 3.49 2.53 28% Peak Flow (cfs) 29.8 5.8 81% 100-Year Event (6.36" rain) Runoff Volume (inches) 5.44 4.35 20% Peak Flow (cfs) 45.8 8.3 82%

CONSERVATION DESIGN FORUM

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Site Plan

Site Objectives

LEED Sustainable Sites Highest Environmental Performance Reduced Irrigation Increased Longevity Cost Effective

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Construction

Charles City Permeable Streets CONSERVATION DESIGN FORUM

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Charles City Permeable Streets

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Jordan Cove Waterford, Connecticut

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TABLE 2: PROTOTYPE MODEL RESULTS Rainfall* Existing Proposed % Reduction Project Costs 6-Month Event Runoff volume (inches)* 1.91 0.28 0 100% Runoff Rate (cfs)** - 0.59 0 100% • Remove & replace existing pavement & curbs 1-Year Event – 17 City Blocks Runoff volume (inches)* 2.36 0.45 0 100% Runoff Rate (cfs)** - 0.79 0 100% – 112,000 square feet 2-Year Event Runoff volume (inches)* 2.98 0.75 0 100% • Excavation Runoff Rate (cfs)** - 1.1 0 100% •Gravel Base 10-Year Event Runoff volume (inches)* 4.38 1.59 0.59 63% • Permeable Paving Runoff Rate (cfs)** - 1.7 0.12 93% 100-Year Event • Water main & services Runoff volume (inches)* 7.07 3.6 2.46 32% Runoff Rate (cfs)** - 3.3 2.2 33% • Sanitary sewer services * Based on 24-hour rainfall • $3.7M construction cost ** Based on critical duration storm • $3.9M construction, engineering, fees CONSERVATION DESIGN FORUM CONSERVATION DESIGN FORUM

Permeable Pavement Permeable Pavement Benefits Design • Space efficient – detention and parking occupy • Benefits same space • Safety – reduced surface icing (Lund Institute of Technology) • Hydrologic Design • Reduced frost heave (Lulea Univ of Technology) • Can eliminate need for storm sewers & inlets • Engineering Design • Reduces surface runoff volumes and increases groundwater recharge • Construction Considerations • Water quality benefits • Longevity (paver systems) • Aesthetics (paver systems)

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Water Quality Benefits Site Analysis • Soils • Event runoff coefficient ~ 0.8 and annual C~0.5 – Depth to groundwater at least three feet (varies by state) for lined permeable pavement system – Avoid highly expansive clay soils – Avoid contaminated soils unless lined (Nottingham Trent University) – California Bearing Ratio • Reduced runoff temperature (subsurface) 5 to 7o – Soil permeability C (9 to 13o F) relative to asphalt (University of • Location – Avoid high sediment yielding areas Guelph) – Avoid locations of contaminated runoff or risk of spills • Microbial digestion of petroleum based – Avoid significant run-on that could clog paving – Provide proper setback or waterproofing for building foundations hydrocarbons (Coventry University) – Provide proper setback from wells (varies by state) • > 95% removal of metals within gravel base • Traffic Loading – Pavers most suitable for parking lots (HydroCon GmbH, Hameln, Germany) – Limit paver use to streets with speeds < 30 mph – May need to provide weight restrictions for porous asphalt or concrete

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Hydrologic Design

• Surface drainage capacity – Up to 100 in/hr for new permeable paver systems – Use 2-3 in/hr* for mature permeable paver installations • Maximum subsurface drain time to prevent loss of subgrade strength based on CBR • Provide perforated pipe drains if necessary to achieve drain time – Locate drain at bottom of base for low permeability soils – Locate drain above bottom to provide retention on moderate permeability soils

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Hydrologic Design Impact of gravel gradation & slope • Hydraulic conductivity of base • 40 stall parking lot – Darcy’s law (Q=kia) • 0.5% vs 3% cross – #57 stone k~0.13 ft/s slope

– #2 stone k~22 ft/s (too high to use without 200 feet • 18” depth base restricted release) • #57 vs #2 stone base – i = subgrade slope • Type II Storm Event • Restrict release to meet local standards – Perforated pipe control (Mannings formula) – Restrictor control (orifice equation) 60 feet

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0.5% Slope vs 3% Slope (#57 Stone) #57 Stone vs #2 Stone

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Engineering Design • Edge Restraint (permeable pavers) – Necessary to maintain interlock between pavers – Concrete curb or soldier course set in concrete • Surface slope as low as 0.5% to 1% • Open graded, crushed, clean stone for all courses • Subgrade compaction – minimum necessary • Woven monofilament geotextile between subgrade and subbase – Reduced blinding – Lower elongation – Select high permeability (permittivity > 1.2/s)

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Concrete edge restraint

Permeable paver Stone Chip Setting (C33, #8) Base (C33, #57) Subbase (#2 or #57) Uncompacted subgrade

Woven Monofilament Fabric

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Construction Considerations

• Soil erosion and sediment control is essential • Consider constructing last or plan on replacing crevice fill material after site stabilization • Sequencing – Place filter fabric – Place and compact subbase – Place and compact base – Place setting bed, place pavers, then compact – Sweep in crevice fill material

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Webcast Outline

• Introduction, ASCE Specifications •Case Studies, Application, Design, Construction, and Costs (Tom) •Q & A • Planning, Implementation, & Research at the Regional Scale (Tim) • Q & A Q & A •Permeable Asphalt Case Study (Rob) •Q&A Follow‐Up Questions: [email protected] • Conclusions and Resources

Who We Are

Perspectives and Research on Low Impact Development Practices and Implementation • Conservation Authorities – manage resources on a watershed basis Tim Van Seters – work with municipalities to plan and implement future growth CWP Webcast and services February 12, 2014 • Responsibilities include: – Flood control, forecasting, and warning – Protecting health of rivers and lakes – Promoting sustainable development – Preserving and enhancing regional biodiversity

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TRCA Jurisdiction Drivers for LID

The TRCA's area of jurisdiction includes: • Growing recognition that: 3,467 sq. km: 2,506 on land and 961 water-based – conventional approaches are insufficient – LID is a practical and affordable Nine watersheds alternative

The TRCA’s jurisdiction also • Increasingly stringent stormwater extends into Lake Ontario to a point defined by the Territorial criteria Divisions Act, R.S.O. 1980 • Credits for LID in Green Building standards

The population within TRCA’s jurisdiction is approximately 4,300,000, (37% of Ontario’s population).

Drivers continued… Challenges

• Special planning areas subject to • Slow evolution of municipal design criteria leads to municipal sustainability standards delays • Space constraints in older • LIDs perceived to require more maintenance developments • Perception of risk and liability • Disagreement about capacity of LID to meet targets • Unique aesthetic contributes to • Debate about where to put LIDs – public vs private marketability of development property • Cost reductions • Lack of inter-departmental agreement on responsibilities – Avoided costs on pipes, curbs, etc. for O&M – More efficient use of space • Outdated government standards and regulations (e.g., vegetation by-laws, road widths, drainage infrastructure)

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Living City Campus Parking Lot, Vaughan

Addressing Implementation Barriers Narrow Wide Joint through Monitoring and Research Joint PICP PICP

• Winter performance Asphalt Control Pervious Concrete Sampling Vault • Performance on tight soils Recycled Rubber Perm. Pavers • Operation and maintenance Bioretention

Infiltration Recycled Trench Rubber Non-perm. Pavers

Earth Rangers on the Living City Campus

Research Site – Living City Campus at Electric Car Kortright, Vaughan Charging Stations

58 kW solar trackers Bioretention Cell

Compact Bio- and car Swale pooling stalls Overflow Collaboration between TRCA and U of Guelph Catchbasin Permeable Geothermal Pavers Monitoring Green Roof Energy Vault

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Cold climate SWM issues

• High runoff during snow melt or rain-on- snow events Winter • Low winter evapotranspiration • Release of accumulated contaminants in Performance snowpack • Contaminant accumulation rates higher in cold climates due to: – higher releases from fossil fuel combustion (for heating) – enhanced corrosion – less efficient operation of vehicles – application of de-icing salts and sand/gravel as anti-skid agents

Cold climate SWM issues Winter Performance

• De-icing compounds present several challenges • Low intensity rain and – not removed by stormwater BMPs snow melt events = good – toxic to freshwater ecosystems runoff reduction – can contaminate shallow aquifers – can increase the mobility of metals in • Infiltration continues soils throughout the winter on – sodium ions replace calcium and permeable pavements magnesium ions in soil minerals, altering soil structure, hydraulic properties and and bioretention fertility – enhance corrosion rates and reduce • Slush ponding observed lifespan of infrastructure on narrow jointed pavers – salt spray damages vegetation during the winter

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Winter Performance - Bioretention Annual Salt Concentrations

• Asphalt releases salt in concentrated bursts during winter • Infiltration LIDs release it more gradually over the entire year • Canadian Aquatic Life Thresholds: Chronic: 120 mg/L; Acute: 640 mg/L

100000 Asphalt Perm. Pavement 10000 Bioretention 1000 Cold season Warm season Acute • Ponding during snowmelt • Ponding during intense 100 Chronic Chloride (mg/L) events rainfall events 10 • Up to 38 hour duration • Up to 2 hour duration 1 • 2 - 3 times Dec. – March • 8 - 9 times April – Nov. Jun, Jul, Aug, Sep, Oct, Nov, Dec, Jan, Feb, Mar, Apr, May, Jun, 2011 2011 2011 2011 2011 2011 2011 2012 2012 2012 2012 2012 2012

Design Guidance • Ensure inlets and overflow outlets for bioretention cells remain ice free during spring freshet • Use salt tolerant plants Performance on • Reduce salt applications if possible through best practices and contractor education Tight Soils • Narrow jointed pavers may not infiltrate as well during winter, but will drain to outlet • Consider increasing separation distance between base of facility and seasonally high groundwater table where salts are applied

• Winter runoff bypasses may be necessary Source: C Denich where aquifers are vulnerable

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Guidelines for Minimum Soil Infiltration Rate

In 2009, reviewed manuals from 11 jurisdictions in Canada (4), Northeastern U.S. (6) and the UK (1) Permeable Jurisdiction Recommendations Pavement Soakaways Ontario (2003), Halifax (2006) 15 mm/h (60 mm/h for Infil. Basins) Infiltration Chamber British Columbia (2002) No restrictions; underdrain Infiltration recommended where infiltration is slow Trenches Permeable Pavements, Maine (2006) 13 mm/h (not > 61 mm/h) Infiltration Bioretention Pennsylvania (2006) 2.5 mm/h (not > 254 mm/h) Chamber No restrictions Minnesota (2008) ; underdrain Exfiltration recommended where < 25 mm/h System New York (2003); Maryland (2000) 13 mm/h (clay content < 20%; silt + clay content < 40%) United Kingdom (2007) No restrictions

Mayfield Infiltration Trenches Mayfield Infiltration Trench #3 3500 5 P il ls w o r th 4.5 R o a 3000 d Overflow elevation 4

Total Roof Area = 58,381 m2 2500 3.5 2.5 – 3.8 mm/h Roof Area: Top of infiltration trench 3 2 days 23,268.3 m2 Overflow sensor 2000 Caledon 3 (150 m2 ) 2.5 To Roof Area: SW 1.5 – 2.5 mm/h p M 2 on • Silty clay native soils 20,100.8 m Control d 1500 Manhole 3 2 4.5 days Caledon 2 (150 m2 ) • Undersized systems: ratio of

Roof Area: roof area to trench footprint (mm) Level Water 1.5 1000 Rainfall (mm/hour) 2 14,961.9 m Control area ranges from 155:1 to 1.0 – 1.5 mm/h Caledon 1 Manhole 2 100:1 1 2 16.3 days (150 m ) 500 Legend 9.4 mm, 22.8 days Control • Water storage cap. = 0.5 Manhole 1 Water level sensor 7 mm and 6 mm events for Infiltration trench Trenches 1, 2 and 3 0 0 respectively 28-Aug 2-Sep 7-Sep 12-Sep 17-Sep

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Performance on fine-textured soils: Local studies Underdrain and overflow

Study Practice Location Soil Type Runoff reduction Underdrain configuration

Drake et al, Permeable Kortright Silty Clay Till 43% Yes

2012 Pavements Parking Lot Weir Plate height 990 mm Chambers Building A 1 Inlet inlet 600 mm dia. Overflow 600 mm dia. 600 mm dia. TRCA, 2008 Permeable Seneca Silty Clay Till 99% No

Building A 2 Inlet Pavement College 500 mm dia. Parking Lot SWAMP, 2002 Perforated Toronto Clay to Clay >80% No Pipe Resid. Roads Silt Till Young et al, Infiltration Richmond Hill Sandy Silt 90% No 2013 Chamber Commercial Till Roof Runoff Young et al, Detention Brampton Sandy Silty negligible No 2013 Chamber Parking Lot Clay Till

Van Seters and Bioretention Kortright Silty Clay Till > 90% Yes Graham, 2014 Parking Lot (in press)

Kortright Permeable Pavements Volume Reduction Design Guidance: Fine Textured Soils • Stormwater infiltration practices can be an effective 100 91 means of managing urban runoff on fine-textured soils 90 77 72 where: 80  70 Design is based on good knowledge of native subsoil permeability 60 43 50  Underlying stratigraphy and groundwater flow pattern is 40 conducive (i.e., presence of an aquifer to recharge or interflow 30 path to a receiving waterbody) 20 10 • Design to maintain hydraulic head in water storage

Runoff Volume Reduction (%) Volume Runoff 0 flow 32 hour 46 hour 15 day reservoirs for longer than 48 to 72 hours to help restrictor - detention detention detention maximize drainage rate and annual infiltration volume slow drainage Source: Drake, J, Bradford, A., Van Seters, T., 2012

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Design guidance: Fine textured soils

• Design manholes to prevent mosquitoes from entering • Draw upon water stored in gravel reservoirs like a Operation and rainwater cistern for non-potable uses (e.g. landscape irrigation, vehicle/outdoor washing) Maintenance • Include a means of draining the system by gravity to improve ease of maintenance (e.g., outlet pipe through the weir wall with flow restrictor valve) • Focus on re-use and evapotranspiration where infiltration is not feasible

Surface Permeability

Permeable Pavement Maintenance

Surface Infiltration Rate Test - ASTM C-1701 Narrow Jointed PICP, 2 – 3 mm 2010 joint stabilizer

Wide Jointed PICP, 1 – 9 mm HPB

2012 Pervious pavement .org Pervious Concrete

Drive lane Drake, Bradford and Van Seters, 2012 Drake and Bradford, 2014

Source: Drake, J, Bradford, A., Van Seters, T., 2012

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Reduction in Permeability (2.5 years)

Pavement cleaning recommended when infiltration ≥ 25 cm/h Permeable Pavement Maintenance Vacuum Truck, max power 2500 rpm

Preventative Restorative

Maintenance Restoration Maintenance

before before

after after

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Bioretention Infiltration over Time

• No soil maintenance over seven years • Drawdown of surface ponding levels after rain events in 2013 roughly the same as in 2006 and 2007 2007 2013 300 200 Nov. 2006 Jun 2007 200 150 Jun 2007 100 100 Jul 2013 Jul 2013 50 0 0 Exfiltration Water Level Level (mm) Water 0 500 1000 1500 0 500 1000 Water Level Level (mm) Water Time after peak (min) Time after peak (min) System, Toronto

Exfiltration System Long Term Maintenance - General Thoughts Performance 500 • Need improved guidance on long term maintenance • Installed in 450 Storm requirements, procedures and costs for LID practices 1994, Limited 400 sewer maintenance September 6, 1998 350 invert • Need practice designs that minimize maintenance • Still infiltrating 300 well after 19 250 years July 7, 2013 200 • Success of maintenance programs will require:

• Similar results Level Water (mm) 150 – Institutional capacity to enforce procedures and requirements for 20 year old 100 systems in Perforated – Effective tracking, inspection and servicing databases 50 Ottawa (JF pipe invert – Well resourced stormwater O&M programs Sabourin, 0 0 20406080100 2008) Time after peak (minutes)

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Thank You

Tim Van Seters Phone: 289-268-3902 Email: [email protected]

STEP website: www.sustainabletechnologies.ca Q & A

Follow‐Up Questions: [email protected]

Pavements of the Future: Webcast Outline Case Studies In Permeable Pavements

• Introduction, ASCE Specifications Robert M. Roseen, PhD, P.E., Geosyntec Consultants •Case Studies, Application, Design, Construction, and Costs (Tom) [email protected] •Q & A • Planning, Implementation, & Research at the Regional Scale (Tim) •Q & A • Permeable Asphalt Case Study (Rob) • Q&A Center for Watershed Protection Webcast • Conclusions and Resources Reimagining the Parking Lot & Roadway as a Stormwater Practice February 12, 2014

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Commercial Street Reconstruction Porous Pavement Provincetown Provincetown, Massachusetts In 2012 Provincetown began the installation of over 5,000’ of the first “Porous Municipal Main Street”. The • Year-round population of around 3,000 project addressed existing infrastructure problems with flooding and drainage along • Significant growth during the summer a main thoroughfare that has tremendous – Seasonal population increases to approximately 30,000 traffic during the busy tourist season. A high durability asphalt mix-design was – Summer tourism can bring in half a million visitors to Commercial Street

chosen to meet the commercial traffic Source: requirements. Through the use of

widespread infiltration, the design seeks to www.provincetowntourismoffice.org manage stormwater and beach • Harbor is listed on the 2010 Integrated List of impairments which occur from the Waters as a “Category 4a” water body – TMDL for discharge of untreated runoff from many outfalls. Beach closures at these outfalls pathogens were eliminated in 2013 and numbered 18 • Heavy recreational and commercial use in 2011, and 9 in 2012. • Economic driver for the Town • Beach closures affect economy and public perception

Harbor Beach Closures Porous Pavement Project (Continued)

Porous Pavement Standard Pavement • Phase I: Winter 2012, Johnson to 5 Winthrop Street, approx. 3,300 LF 12 7 8 2011 • Phase 2: Winter 2013, Winthrop to West 4 End, approx. 2,000 LF 2012 • Project costs include: Stone bed and 2013 6 Closures in 2013 trench, Drainage replacement, 2 courses 3 Closures

of porous pavement, New granite curbing, No 2013 Closures brick sidewalks and miscellaneous detail 2

work Beach 1 2013 had a total of 15 closures at 10 0 Image Image Image Image locations placeholder placeholder placeholder placeholder

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Boulder Hills, Pelham, NH

Economics of Porous Pavements

 2009 Installation of 1300’ of first PA private residential road in Northeast  Site will be nearly Zero discharge  LID subdivision 55+ Active Adult Community  Large sand deposit  Cost 25% greater per ton installed

LID Design Built on 9% grade Comparison of Unit Costs 1.3 acres less of land clearing

Conventional Site Design

Avoided use of 1616’ of curbing, 785’ pipe, 8 catch‐basins, 2 detention basins, 2 outlet control structures 6% savings on total cost of SW infrastructure for a ~zero discharge site 151

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A Low Impact Development Greenland Meadows Approach at Greenland Meadows Commercial, Greenland, New Hampshire Utilizing an LID approach that featured acres of Greenland, NH porous asphalt and a gravel wetland, a cost- competitive drainage system was designed for a large retail development. The total impervious • “Gold‐Star” Commercial area of the development – mainly from rooftops and non-porous parking areas – is approximately 25.6 acres. This project had an estimated 26% Development cost reduction due to cost avoidance in associated drainage infrastructure (ponds and • Cost of doing business piping) with the use of Low Impact Development. near Impaired Waters/303D • Brownfields site, ideal location, 15yrs • Proposed site >10,000 Average Daily Traffic count on >30 acres

Comparison of Unit Costs

Median effluent=0.50 mg/L TN

Median effluent=0.005 mg/L TP

Median effluent=3 mg/L TSS

26% savings on total cost of SW infrastructure for a ~zero discharge site

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Questions? Robert Roseen [email protected] 603-205-8056 Webcast Outline

• Introduction, ASCE Specifications • Planning & Implementation at the Regional Scale (Tim) •Q & A • Applications, Design, Construction, Case Studies (Tom) •Q & A •Permeable Asphalt Case Study (Rob) •Q&A • Conclusions and Resources

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Upcoming Webcasts Series 1: The Life of a Stormwater Practice • The Role of Local Codes – March 12, 2014, 1:00 –3:00 PM EDT Conclusions and final thoughts • Design & Construction of BMPs TBD, if needed – April 9, 2014, 1:00 –3:00 PM EDT

• BMP Maintenance – May 14, 2014, 1:00 –3:00 PM EDT See our 2014 webcasts http://www.cwp.org/webcast‐home

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Post Webcast Information The Center for Watershed Protection • Participation Certificate – Participation certificates are also available. If you have multiple attendees, please save the Association (CWPA) certificate to your computer. You can type the attendees name in •A forum for sharing ideas, resources, and expertise the name field and then print the certificate. •Training, education, collaboration, and professional development Benefits include: •Webcast discounts –save hundreds •Watershed Science Bulletin online articles •Free access to Online Watershed Library •Software and publication discounts •Exclusive training for members

Visit us at www.cwp.org/benefits for more information

Speaker Contact Information

Dave Hirschman Master of Ceremonies and Host Thomas H. Price, P.E. Director of Programs Director of Water Resources Engineering Center for Watershed Protection, Inc. Conservation Design Forum 919 2nd Street, S.E. 185 South York Street Charlottesville, VA 22902 Elmhurst, IL 60126 Phone: 434‐293‐6355 Phone: (630) 559‐2004 Email: [email protected] Email: [email protected] http://www.cwp.org/ www.cdfinc.com Tim Van Seters, M.E.S., H.B.Sc. Manager, Sustainable Technologies Evaluation Robert M. Roseen, Ph.D., D.WRE., P.E. Thanks for viewing our Program Associate Resources Engineer Toronto and Region Conservation Geosyntec Consultants Webcast 1: Reimagining The Parking Lot & 9520 Pine Valley Drive 75 Congress Street, Suite 301 Vaughan, ON Portsmouth, NH 03801 Roadway as a Stormwater Practice L4L 1A6 Phone: 603‐686‐2488 Phone: (289) 268‐3902 Email: [email protected] Email: [email protected] www.geosyntec.com www.sustainabletechnologies.ca

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Welcome to the Webcast

• Continuing Education Credits –We are offering CEUs for our watershed and stormwater management webcast series. A registered 28’ attendee must watch the entire webcast to be eligible to earn the CEU. A pdf Certificate of Completion will be sent out after webcast to the person who registered for the webcast. The Certificate has a blank name field so that each attendee at your location can receive a certificate. While our training programs are developed with IACET criteria in mind, the varying nature of certification requirements for Series 1: The Life of a Stormwater Practice each state means we cannot guarantee that CEU’s will be awarded and it is up to the individual to determine sif CEU’ or PDH’s will be Session 1: The Role of Local Codes awarded based on the policies of their local certifying board. Email [email protected] with questions. • Resources –After the webcast, we will email a resources sheet, speaker contact information, and the presentation.

To Adjust How the Slides Appear on Your Screen –To make the slide area larger, go to Full Screen under the Meeting Tab.

To Answer a Poll Question – Julie Schneider Polling questions appear during the Watershed Researcher and Planner, Center Sadie Drescher webcast. To answer a poll question, click Watershed Researcher and Planner, Center on the radio button to the left of your answer and click submit. Do not type your answer in the chat box.

To Ask a Question – The right corner of the screen contains a Q&A chat box. Type your question in the box and click on the send question icon to submit it. We will try to answer as many questions Clark Wilson Julie Todd Owens as possible during and after the webcast. Senior Urban Designer Environmental Compliance Manager and City Planner US Environmental Protection Agency City of Atlanta, Georgia Office of Sustainability Communities

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Webcast Outline Runoff Reduction/Volume Control •Role of Local Codes, Big Picture (Julie Schneider) •Q&A • Issue of Scale (Clark) •Q & A •Case Study from Atlanta, Georgia (Julie Todd) •Q & A •Case Study Tools: 1) Water Quality Scorecard (Clark); 2) Codes and Ordinance Worksheet (Julie Schneider); and 3) Atlanta (Julie Todd) •Q&A •Wrap Up, Conclusions, and Resources

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Stormwater Practices Differ Sharply in Ability to Runoff Reduction Processes Reduce Runoff Volume Runoff Reduction is not just infiltration!

Infiltration Canopy Interception Evaporation Transpiration Wet Ponds, ED Ponds Bioretention, Infiltration, Rainwater Harvesting and Constructed Dry Swales and Related Wetlands and Filters Practices Reduce Runoff Extended Filtration Reduce Runoff Volumes Volumes by 50 to 90% by zero to 10% Center for Watershed Protection Center for Watershed Protection

State Stormwater Performance MS4 Permits Align with use of LID Standards & Manual are Changing Pennsylvania NPDES MS4 General Permit • D.C. –1.2” retention MCM#5: Post‐Construction stormwater • DE –retain “resource protection event” (2.7”) • management • WV –retain runoff from 1” rainfall • MD –on‐site retention using Environmental Site • BMP#5, measurable goals: Design “Enact ordinances consistent with LID practices and • Coastal GA – reduce runoff from 1.2” storm repeal sections of ordinances that conflict with LID practices.” • WI –achieve 60% ‐90% of predevelopment volume • Others?

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Reduce Runoff Volume By: What Do Changing Stormwater • Leaving soils undisturbed, Criteria Mean for Local Codes? • Maintaining forest cover/natural resources • Compliance may involve multiple practices – not just end‐of‐pipe • Reduce impervious cover • Site design and non‐structural practices are required or encouraged as means to reduce overall volume of runoff • LOCAL CODES CAN EITHER CONFLICT WITH OR SUPPORT THE USE OF MANY OF THESE PRACTICES

Obstacles in Local Codes “All portions of stormwater management systems located along new streets shall be located 28’ underground…” ‐Prohibits roadside stormwater practices “The County Stormwater Management code requires all drainage and grading be conveyed away from a building. The collection or concentration of water not Q & A in drainage easements is not allowed.” ‐Prohibits temporary ponding‐on site Follow‐Up Questions: [email protected]

4 3/11/2014

Webcast Outline •Role of Local Codes, Big Picture (Julie Schneider) •Q&A • Issue of Scale (Clark) Green Infrastructure at 3 Scales •Q & A •Case Study from Atlanta, Georgia (Julie Todd) •Q & A Clark Wilson •Case Study Tools: 1) Water Quality Scorecard (Clark); 2) Codes and Office of Sustainable Communities Ordinance Worksheet (Julie Schneider); and 3) Atlanta (Julie Todd) U.S. EPA •Q&A •Wrap Up, Conclusions, and Resources

1. Site • Rain gardens, green roofs, pervious pavers 2. Neighborhood • Street networks, parking, mixed use 3. Municipal • Open space, infill development, trees

http://epa.gov/smartgrowth/water_scorecard.htm

5 3/11/2014

Land Use and Water Quality Preserve • Preserve: Protect and enhance natural features, such as • Preserve large, continuous areas of open space undisturbed forests, meadows, wetlands, and other • Preserve sensitive ecological areas natural areas.

• Recycle: Recycle land by directing development to already degraded land, e.g., parking lots, vacant buildings, abandoned malls.

• Reduce: Reduce land consumption and development footprint by using land efficiently.

• Reuse: Capture and reuse stormwater by directing it back into the into the ground through infiltration, evapotranspiration, or reuse.

Recycle Reduce Imperviousness • Direct development to already degraded lands

Low Density Higher Density

6 3/11/2014

Infill and brownfield redevelopment • Takes advantage of areas already served by transportation and infrastructure. • Reuses sites already covered by impervious surfaces • Reduces runoff from the existing condition. • Accommodates development that might otherwise occur on greenfield sites.

Benefits of Green Infrastructure • Urban heat island reduction • Reduced energy 28’ demands • Improved air quality • Recreational space • Walkable streets Q & A • Increased land values • Quality of life • And more… Follow‐Up Questions: [email protected]

7 3/11/2014

Webcast Outline POLL QUESTION #3 •Role of Local Codes, Big Picture (Julie Schneider) •Q&A When it comes to Code and Ordinance review • Issue of Scale (Clark) •Q & A • Been there, done that, bought the t‐shirt •Case Study from Atlanta, Georgia (Julie Todd) • Plan to do it • Maybe later…… •Q & A •Case Study Tools: 1) Water Quality Scorecard (Clark); 2) Codes and Ordinance Worksheet (Julie Schneider); and 3) Atlanta (Julie Todd) •Q&A •Wrap Up, Conclusions, and Resources

Project Purpose

City’s 2009‐2014 NPDES MS4 (Stormwater) Permit issued by GA EPD requires the City to:

“…review and revise, where necessary, building codes, ordinances, and other regulations to ensure they do not prohibit or impede the use of green infrastructure 28’ practices, including infiltration, reuse, and evapotranspiration. At a minimum, the permittee shall assess those regulations governing road design and parking requirements. During the regulatory review, the permittee should consider the inclusion of incentives for use of green infrastructure practices into the ordinance.”

‐ AND ‐ Q & A “It is my goal for Atlanta to become one of the top tier sustainable cities in the nation” ‐‐ Mayor Kasim Reed Follow‐Up Questions: [email protected]

8 3/11/2014

Natural & Engineered GI

Engineered Green Infrastructure Bioswales Rain Gardens Atlanta: City in a Forest Permeable Pavements Green Roofs Population: ~420,000 Area: ~133 square miles Tree Coverage: 36% Natural Green Infrastructure Percent Impervious: 34% Wetlands Floodplains Forests Stream Buffers

City of Atlanta Watersheds & Combined Sewer Areas

9 3/11/2014

Impervious Cover Zoning

Neighborhood Planning Units Atlanta’s Mandate

A F L T Chastain Park Atkins Park English Avenue Ashview Heights Kingswood Lindridge/Martin Manor Vine City Atlanta University Center Margaret Mitchell Morningside/Lenox Park M Harris Chiles Mt. Paran Parkway Piedmont Heights Castleberry Hill Just Us Mt. Paran/Northside Virginia Highland Downtown The Villages at Castleberry Hill Paces G Old Fourth Ward West End Pleasant Hill Almond Park N Westview Randall Mill Atlanta Industrial Park Cabbagetown V Tuxedo Park Bolton Hills Candler Park Adair Park West Paces Ferry/Northside Brookview Heights Druid Hills Capitol Gateway Whitewater Creek Carey Park Inman Park Mechanicsville B Carver Hills Lake Clair Peoplestown Brookhaven Chattahoochee Poncey‐Highland Pittsburgh Buckhead Forest English Park Reynoldstown Summerhill Buckhead Village Lincoln Homes O W “…review and revise, where East Chastain Park Monroe Heights East Lake Benteen Park Garden Hills Rockdale Edgewood Boulevard Heights Lenox Scotts Crossing Kirkwood Custer/McDonough/Guice Lindbergh/Morosgo West Highlands The Villages at East Lake East Atlanta North Buckhead H P Grant Park Peachtree Heights East Adamsville Arlington Estates Oakland Peachtree Heights West Baker Hills Ashley Courts Ormewood Park Peachtree Hills Bakers Ferry Ben Hill State Facility necessary, building codes, Peachtree Park Bankhead Courts Ben Hill Acres Woodland Hills Pine Hills Bankhead/Bolton Ben Hill Forest X Ridgedale Park Boulder Park Ben Hill Pines Capitol View South Tuxedo Park Carroll Heights Ben Hill Terrace Capitol View Manor C Fairburn Heights Brentwood Hammond Park Arden/Habersham Fairburn Road/Wisteria Lane Briar Glen Perkerson Argonne Forest Fairburn Mays Butner/Tell Sylvan Hills Brandon Mays Cascade Green Y ordinances, and other regulations to Castlewood Oakcliff Deerwood Amal Heights Channing Valley Old Gordon Elmco Estates Betmar LaVilla Collier Hills Ridgecrest Forest Fairburn Chosewood Park Collier Hills North Wildwood Fairburn Tell Englewood Manor Colonial Homes Wilson Mill Meadows Fairway Acres High Point Cross Creek Wisteria Gardens Greenbriar Village Joyland Fernleaf I Heritage Valley Lakewood Heights Hanover West Audobon Forest Huntington South Atlanta ensure they do not prohibit or Memorial Park Audobon Forest West Kings Forest The Villages at Carver Peachtree Battle Alliance Beecher Hills Lake Estates Z Ridgewood Heights Cascade Heights Meadowbrook Forest Blair Villa/Poole Creek Springlake Chalet Woods Mellwood Browns Mill Park Wesley Battle Collier Heights Mt. Gilead Woods Glenrose Heights Westminster/Milar East Ardley Road Niskey Cove Lakewood Westover Plantation Florida Heights Niskey Lake Leila Valley Wildwood Green Acres Valley Old Fairburn Village Norwood Manor impede the use of green Woodfield Green Forest Acres Princeton Lakes Orchard Knob Wyngate Harland Terrace Rue Royal Polar Rock D Horseshoe Community Sandlewood Estates Rebel Valley Forest Berkeley Park Ivan Hill Tampa Park Rosedale Heights Blandtown Magnum Manor Wildwood Forest South River Gardens Bolton Peyton Forest Q Swallow Circle/Baywood Hills Park West Manor Midwest Cascade Thomasville Heights Riverside Westhaven Regency Trace infrastructure practices…” Underwood Hills Westwood Terrace R Whittier Mill Village J Adams Park E Center Hill Campbellton Road Ansley Park Dixie Hills Fort Valley Ardmore Grove Park Greenbriar Atlantic Station Harvel Homes Community Laurens Valley Brookwood Penelope Neighbors Pamond Park Brookwood Hills West Lake Southwest Georgia Tech K S Home Park Bankhead Bush Mountain Loring Heights Hunter Hills Cascade Avenue/Road Marietta Street Artery Knight Park/Howell Station Fort McPherson Midtown Mozley Park Oakland City Sherwood Forest Washington Park Venetian Hills

10 3/11/2014

Hello? Ordinance Team

Watershed Protection

Environmental Erosion & Site Sedimentation Development Ordinance Control Team

Law

The ‘A‐Team’

Watershed Protection

Erosion & Site Sedimentation Development Control Expanded Ordinance Law Team Arborist

Planning & Public Works Community Development

11 3/11/2014

What Did We Review? Findings

Ordinances Integrate Green Infrastructure into by‐right zoning • Subdivision • Zoning • Traffic & Vehicles • Streets & Sidewalks • Vegetation (Tree Ordinance) • Floodplains • Stream Buffer • Wetlands • Post Development Stormwater Management 28’ 18’ Documents • Standard details for construction Policy • Site Development review process

Rezoning Process Findings

Remove real and perceived barriers

ALLOWED “Barrier curbs shall be installed . . . around landscaped areas…” ≠ “Barrier curbs shall be a minimum of six inches in height and a minimum of eight ENCOURAGED inches in width and permanent in nature.”

12 3/11/2014

Post‐development Stormwater Post‐development Stormwater Management Ordinance Management Ordinance

Revised ordinance promotes green infrastructure Strategy for Successful Adoption 1” Runoff Reduction = Green infrastructure • Nov 2010 ‐ Jan 2011 ‐ Mar 2012 ‐ • Revised stormwater requirements for Single Family Dec 2010 Feb 2012 May 2012

Residences •Met with several • Developed First • Technical engineering groups Draft Stakeholder Group • Strengthened maintenance requirements for to discuss potential • Revisions made existing stormwater facilities changes

• Promote better site design by requiring stormwater May 2012 ‐ Dec 2012 ‐ Feb 2013 Concept Plan & Consultation meeting Dec 2012 Jan 2013

• Adopted by Atlanta City Council February 2013 • Stakeholder • Council Review & • Official Adoption Outreach Unanimous approval • Additional revisions made

Post‐development Stormwater Post‐development Stormwater Management Ordinance Management Ordinance Technical Stakeholder Group Stakeholder Outreach

• Consisted primarily of engineers with first‐ • Presented proposed changes to 100+ hand knowledge of the City’s processes organizations – Also included representative from the – Development community Chattahoochee Riverkeeper – Non‐profits • 2 roundtable meetings – Environmental Agencies – Provided valuable feedback and suggestions – Neighborhood Planning Units (NPUs)

13 3/11/2014

Post‐development Stormwater Management Ordinance Single‐Family Guidance Once Adopted… • Provides a list of • Presented at 35+ meetings, conferences, & workshops (over 1,500 participants) acceptable GI Practices Reduces the need for • Developed a Stormwater Workshop Series • – General Sessions (developers, builders, plan reviewers, complicated calculations inspectors, engineers, LAs, etc.) • Provides tear‐off details – Homebuilders Session (SFR guidance document) – Design Professionals Sessions (engineers, landscape and construction architects, architects, etc.) specification for each • Video recordings on website practice • Guidance documents for single‐family and small • Simplifies the review commercial developments and approval process

Challenges Questions? www.AtlantaWatershed.org/GreenInfrastructure

• Must shift away from green infrastructure as an afterthought when designing a site • Internal and external education equally important • Must have resources available (website, guidance documents, trainings, etc.)

• Tracking is imperative for measuring success Julie Todd Owens Office of Watershed Protection [email protected] 404‐546‐1254

14 3/11/2014

Webcast Outline •Role of Local Codes, Big Picture (Julie Schneider) •Q&A • Issue of Scale (Clark) •Q & A •Case Study from Atlanta, Georgia (Julie Todd) 1. Protect Natural Resources and Open Space •Q & A 2. Promote Compact Development and Infill 3. Design Complete, Smart Streets that Reduce •Case Study Tools: 1) Water Quality Scorecard (Clark); 2) Codes and Ordinance Worksheet (Julie Schneider); and 3) Atlanta (Julie Todd) Imperviousness •Q&A 4. Encourage Efficient Parking Supply •Wrap Up, Conclusions, and Resources 5. Green Infrastructure On Site

1. Protect Natural Resources and Open Space 2. Promote Compact Development and Infill • Natural Resource Protection • Support Infill and Redevelopment • Open Space Protection • Direct Development to Existing Infrastructure • Tree Protection • Encourage Mixed-Use Development

15 3/11/2014

3. Design Complete, Smart Streets 4. Encourage Efficient Parking Supply

• Street Design • Reduce Parking Requirements – Context sensitive solutions • Transportation Demand Management – Narrow streets – Driveway location/design • Minimize Stormwater from Parking Lots

• Green Infrastructure Designs – Standards and Design Criteria – Construction – Maintenance

Abby Hall 5. Green Infrastructure On Site [email protected] 202- 566-2086 • Green Infrastructure Practices – Allowed for residential management – Required for new developments

• Maintenance and Enforcement – Monitoring, tracking, and maintenance protocols

http://picasaweb.google.com/buildgreeninfrastructure

16 3/11/2014

Codes and Ordinances Worksheet (COW) Audit of 66 questions • Tool to compare local 100‐ existing based on codes against set of point codes & BSD standards ordinances principles scoring • Achieve reduced system impervious cover and natural resource protection

Final COW Score

Codes and Ordinances Worksheet Score 71 / 100 points

17 3/11/2014

Based on Our Experience…

• Address ‘how’ development occurs • Developed for ½ acre suburban development VS. • Created in 2001; since then many changes to stormwater regulations EPA’s Water Quality Scorecard Center for Watershed Protection’s Codes and Ordinances Worksheet

EPA’s CWP’s Water Quality Scorecard Codes and Ordinances Worksheet What is Atlanta Doing Well? Strengths Strengths

High level of detail Targeted towards development codes Conservation Measures: Created by a regulatory agency Better Site Design Manual • Floodplain management Straight‐forward point system • Stream buffers &

Weaknesses Weaknesses maintenance • Tree protection Applicability Focuses on decreases in impervious Complex scoring system surfaces which can conflict with good urban design Development Measures: • ROW widths • Parking requirements

18 3/11/2014

What Does Atlanta Need to Improve? • Integrate Green Infrastructure into by‐right zoning Next Steps… • Street standards Parking • • Watershed improvement planning • Remove real and perceived barriers in Post‐ Development Stormwater Management & • Watershed improvement project implementation Tree Ordinances • Green Infrastructure Task Force • Update standard details to include Green • Interdepartmental coordination Infrastructure • Communication &Outreach • Pervious paving • ROW stormwater treatment • Maintenance • Street design

• Interdepartmental Coordination

Summary • Role of Local Codes • Target and update codes

28’ • Strengthen stormwater policy • Support local watershed goals • What we heard today • US EPA Water Quality Scorecard Q & A • Center Codes and Ordinance Worksheet • Atlanta, Georgia case study How can this approach work in your area? Follow‐Up Questions: [email protected] • • Get started and let us know!

19 3/11/2014

Let’s play ball! Upcoming Webcasts Series 1: The Life of a Stormwater Practice • The Role of Local Codes – March 12, 2014, 1:00 –3:00 PM EDT

• Design & Construction of BMPs – April 9, 2014, 1:00 –3:00 PM EDT

• BMP Maintenance – May 21, 2014, 1:00 –3:00 PM EDT See our 2014 webcasts Series 1, The Life of a Stormwater practice http://www.cwp.org/webcast‐home Session 2, Design & Construction of BMPs

Visit us at www.cwp.org/benefits for more information

20 3/11/2014

Speaker Contact Information

Sadie Drescher Clark Wilson Master of Ceremonies and Host Senior Urban Designer, US Environmental Protection Agency Watershed Researcher and Planner Office of Sustainable Communities Center for Watershed Protection, Inc. 1200 Pennsylvania Avenue, NW 8390 Main Street, 2nd Floor Washington, DC 20460 Ellicott City, MD 21043 Phone: (202) 566‐2880 Phone: (410) 461‐8323 xt 215 Email: [email protected] Email: [email protected] OR http://www.cwp.org/ Abby Hall Community Planner, US Environmental Protection Agency Julie Schneider Office of Sustainable Communities Watershed Planner Phone: (415) 972‐3384 Thanks for viewing our Center for Watershed Protection, Inc. Email: [email protected] Philadelphia, PA http://www.epa.gov/smartgrowth/ Phone: (215) 277‐1655 Series 1: The Life of a Stormwater Practice Email: [email protected] Julie Todd Owens http://www.cwp.org/ Environmental Compliance Manager and City Planner Session 1: The Role of Local Codes City of Atlanta, Georgia 72 Marietta Street Atlanta, GA 30303 Phone: (404) 546‐1254 Email: [email protected] www.AtlantaWatershed.org/GreenInfrastructure

5/20/2014

Thanks to our webcast sponsor!

Series 1: The Life of a Stormwater Practice ARCADIS works in partnership with its clients to deliver Session 3: BMP Maintenance sustainable solutions that manage stormwater as a resource: providing control and treatment, reducing flood risk and compliance costs, and enhancing water quality, all while building resilient communities.

www.arcadis‐us.com

Welcome to the Webcast To Adjust How the Slides Appear on Your Screen –To –We are offering PDHs for our • Continuing Education Credits make the slide area larger, go to Full watershed and stormwater management webcast series. A registered attendee must watch the entire webcast to be eligible to earn the Screen under the Meeting Tab. CEU. A pdf Certificate of Completion will be sent out after webcast to To Answer a Poll Question the person who registered for the webcast. The varying nature of – certification requirements for each state means we cannot guarantee Polling questions appear during the that CEU’s will be awarded and it is up to the individual to determine webcast. To answer a poll question, click if CEU’s or PDH’s will be awarded based on the policies of their local on the radio button to the left of your certifying board. Email [email protected] with questions. answer and click submit. Do not type your answer in the chat box. • Resources –After the webcast, we will email a resources sheet, To Ask a Question speaker contact information, and the presentation. – The right corner of the screen contains a Q&A chat box. Type your question in the box and click on the send question icon to submit it. We will try to answer as many questions as possible during and after the webcast.

1 5/20/2014

POLL QUESTION #1

How many people are participating today Tom Schueler Executive Director Laurel Williamson in the webcast at your location? Chesapeake Stormwater Network Stormwater and Watershed Planner Center for Watershed Protection, Inc. a) Just me b) 2 to 5 c) 6 to 10 d) More than 10

Ted Scott, PE (MD), CPESC, MSP, LEED AP Jamie Houle, MA, CPSWQ Executive Vice President and Founder Program Manager Stormwater Maintenance & Consulting Stormwater Center, University of New Hampshire

Webcast Outline

POLL QUESTION #2 • BMP Maintenance Today (Laurel Williamson) I work for a • The New Maintenance Paradigm (Tom Schueler) • Evolution of a Stormwater Maintenance Business (Ted Scott) • Phase I community Q&A • Phase II community • Costs of Maintenance (Jamie Houle) • Municipality Q&A • State government • Designs Gone Wrong (Ted Scott) • Federal government • The Future of Stormwater Inspections (Tom Schueler) • Private consultant Q&A • Nonprofit organization • Summary and Wrap‐Up • University • Other (tell us in the chat box)

2 5/20/2014

BMP Maintenance Today Sediment Regional BMP Survey: ~ 50% of BMPs show some sign of: Deposition

– Excess sediment – Clogging – Erosion – Vegetation problems – Trash – Structural degradation – Flow alteration

Erosion Vegetation Too much, too little?

3 5/20/2014

Webcast Outline

2014 Chesapeake Stormwater Network • BMP Maintenance Today (Laurel Williamson) • The New Maintenance Paradigm (Tom Schueler) Survey of Stormwater Professionals • Evolution of a Stormwater Maintenance Business (Ted Scott) • 244 individuals responded Q&A

• LID practices are now the predominant stormwater • Costs of Maintenance (Jamie Houle) practices installed across the Bay watershed Q&A

• Maintenance rated “biggest obstacle” to LID • Designs Gone Wrong (Ted Scott) implementation • The Future of Stormwater Inspections (Tom Schueler) Q&A • Better maintenance was also the top‐rated strategy to improve water quality • Summary and Wrap‐Up

The Old BMP Inspection Model Has to Be Modified One big pond The New Maintenance Paradigm

Tom Schueler Chesapeake Stormwater Network

4 5/20/2014

The New “Many-BMP” Maintenance Model The Changing Maintenance Paradigm Conventional Practices LID Practices Example of Practice Pond Disconnects/rain garden Number of practices? A few at each site Dozens Size of practices? Large drainage area Micro-drainage area When to construct? During site construction After site is stabilized

Who is responsible? Homeowner association Homeowner Who does inspection? Public sector engineer Trained contractor Who does maintenance Specialized contractor Landscape contractor

How long does it take? Hour or more 10 minutes What is the goal? Prevent dam failure and Maintain hydrologic 24 disconnections and public nuisances function and landscaping 18 swale sections 14 rain gardens Sediment cleanouts? On a 30 to 50 year cycle Annual cleanouts at 5 bioretention areas (if ever) pretreatment devices 4 tree planting areas 6 sheet flow credits Maintenance Triggers After catastrophic failure When it looks like crap

Increased Role for E&S Inspectors During What exactly does an LID as-built Low Impact Development (LID) Construction: look like? • Protect areas during site construction  Engineered surveys? • Authorize to proceed to LID construction  Digital photo and GPS coordinates? • Inspect and accept LID credits  Depends on type and scale of LID practices… • Certify vegetative stability and soil amendments

5 5/20/2014

As-Builts for Micro LID Practices Larger LID Practices (CDA less than 5000 sf) (CDA more than 5000 sf)

•Limited survey work (elevations, flow  Digital photo and GPS paths and ponding depths) coordinates •Confirm underdrain depth and outflow  Vegetative cover and stability •Ensure landscaping meets design objectives  Confirm ponding depth, •Verify boundaries of stormwater surface area and flow easement path elevations •Check overflow to downstream  No survey work conveyance system

•Digital photo after establishment phase

Maintaining On-lot Practices Where to Locate Residential LID Practices

• Disconnections and dry On – lot wells are OK • Front yard • Back yard ? • Rain gardens OK if there • Side yard ? is a homeowner association that can enforce private Off - lot In expanded street right of way maintenance • • HOA open space • May want to shift them to Localities should clearly define the expanded street right of appropriate conditions under which way LID practices can be located within a residential lot. • May want to avoid use in side and backyards

6 5/20/2014

Key Issues in Maintenance Agreements Is there a legal instrument to compel maintenance of smaller LID practices  Responsible parties that an owner can really understand ?  Identify landscape contractor or other party to perform • Depends on whether it is to maintenance be maintained by homeowner, HOA or property manager  Require annual self-inspection

• Owners’ maintenance guide  Specific annual maintenance w/ LID map with digital tasks that must be performed photo of installed practices  Locator map to find practices

 Photos of established practices

Webcast Outline Evolution of a Stormwater Geek

• BMP Maintenance Today (Laurel Williamson) • The New Maintenance Paradigm (Tom Schueler) • Evolution of a Stormwater Maintenance Business (Ted Scott) Do. Q&A

• Costs of Maintenance (Jamie Houle) We What

Q&A ’ s

• Designs Gone Wrong (Ted Scott) It • The Future of Stormwater Inspections (Tom Schueler) Q&A What a long strange trip its been… ……………………………….…???? • Summary and Wrap‐Up Stormwater.

7 5/20/2014

Evolution of a Stormwater Firm Evolution of a Stormwater Firm

Public Sector Programmatic, Training Do. Enforcement Enforcement Multi-Site Private Sector Routine, Non-Routine, Inspection, Construction, Design/Build AG, UG, LID Permits 4

Property Managers ‐ Non-Routine MS

Maintenance Maintenance AG, Some UG

CM Non-Routine We What

AG Only ’ s It

What a long strange trip its been… What a long strange trip its been… ……………….…NOT Jerry Garcia! …………….Robert Hunter, Truckin’ Stormwater.

Typical Maintenance Activities Typical Maintenance Activities

Routine Maintenance Non‐Routine Maintenance Legacy Surface Facilities Legacy Surface Facilities

Quarterly or Bi-Annually As-Needed • Pipe Repairs • Mowing / Clearing • Barrel Lining • Barrel Replacement • Minor Sediment Cleanout • Major Erosion • Minor Erosion Repair • Riprap • Gabions • Low Flow Cleaning • Sediment Removal • Infall Sediment & Erosion • Major Re‐seeding • Vegetation Replacement • Pipe Joint / Sinkhole Repairs

8 5/20/2014

Typical Maintenance Activities Typical Maintenance Activities

Routine Maintenance Non‐Routine Maintenance Underground Facilities Underground Facilities

As Needed As Needed Based on Inspections Based on Inspections

• Pollutant Cleanout • Filter Change‐out Sand Replenishment • • Door Repairs • Control Structure Cleaning • Sand Replacement • Pipe Jetting Concrete Repairs • Disposal • • Major Cleanouts

Typical Maintenance Activities Typical Maintenance Activities

Routine Maintenance Non‐Routine Maintenance Drainage Infrastructure Drainage Infrastructure

As Needed Quarterly or Annually Based on Inspections

• Minor Sediment • Surface Sinkhole Repair Cleanout • Sub‐Surface Sinkhole Repair • Concrete Repairs • Minor Sinkhole Repair • Grate Replacement • Inlet Cleaning • Unclog Pipes • Trench Drain Cleaning • Structural Failures

9 5/20/2014

Typical Maintenance Activities Typical Maintenance Activities

Routine Maintenance Non‐Routine Maintenance LID Facilities LID Facilities

Quarterly As needed Based on Inspections

• Mulch Care • Sinkholes • Plant Care • Too. Much. Mulch. • Sediment Clean out • Structural issues Media Replacement • Erosion Repair • • Underdrain Issues • Inflow Care • Major Planting • Fertilizer/Pesticides

Inspections –What Are They Good For? Q&A

Inspections

• Maintenance Check‐ins • With Each Maintenance • Check‐ups • Annual • Forensic Investigations • As Needed • Regulatory • Triennially • Verification • MS4 Permit Cycle

10 5/20/2014

Webcast Outline

• BMP Maintenance Today (Laurel Williamson) • The New Maintenance Paradigm (Tom Schueler) • Evolution of a Stormwater Maintenance Business (Ted Scott) Q&A

• Costs of Maintenance (Jamie Houle) Q&A James Houle • Designs Gone Wrong (Ted Scott) Program Manager • The Future of Stormwater Inspections (Tom Schueler) Q&A UNH Stormwater Center

• Summary and Wrap‐Up

Acknowledgements The Maintenance Myth

Funding for the University of New Hampshire Stormwater Center is provided by:

 Cooperative Institute for Coastal and Estuarine Environmental Technology (CICEET)

 National Estuarine Research Reserve System (NERRS) Science Collaborative

 New Hampshire Department of Environmental Services (NHDES)

 Dr. Robert Roseen, Dr. Tom Ballestero and Tim Puls

11 5/20/2014

1,000 Pound Gorilla

Who has primary responsibility for maintenance?

 local governments or public agencies?

 States and the Federal Governments?

 Private property owners and associations?

HWG, 2011

Stormwater Systems Studied Maintenance Complexity is defined as: Conventional Systems Minimal Simple Stormwater Professional Stormwater Professional or or Consultant is seldom Consultant is occasionally

Detention Basin Retention Pond Stone Swale Veg Swale needed needed Low Impact Development Systems Moderate Complicated Stormwater Professional or Stormwater Professional or Consultant is needed half Consultant is always the time needed

Porous Asphalt Gravel Wetland Sand Filter Bioretention Unit (3) Erickson, et al, 2010

12 5/20/2014

Reactive Episodic maintenance, Reactive Maintenance cheap in short term, expensive in the long + Crack sealing term + Filling pot holes Periodic/Predictive + Resetting curbs Science basis, + Culvert reinforcement/replacement/renewal schedulable activities, Pipe lining/repair more cost effective + + Outlet repair Proactive ($) + Redesign for erosive blowouts + Massive vegetation removal Cost effective, preventative operations + Clogged outlet structures - + Structural repairs or rehabilitation Adapted from Reese, A.J., Presler, H.H., 2005

13 5/20/2014

Periodic/Predictive Maintenance

+ Solids or debris removal + Routine inspection + Mowing + Planed vegetation removal Proactive Maintenance

+ Street cleaning and vacuuming + Snow removal + Erosion and sediment control + Reseeding

14 5/20/2014

Economics of Installation vs Maintenance Costs, normalized by TSS Removal Efficiencies area 100 Vegetated Sand Gravel Porous Parameter Wet Pond Dry Pond Bioretention 90 Swale Filter Wetland Asphalt Capital Cost ($) 12,000 13,500 13,500 12,500 22,500 21,550 21,800 80 Inflated 2012 14,600 16,500 16,500 15,200 27,400 25,600 26,600 70 Capital Cost 60 Maintenance and Capital Cost 17.8 5.4 6.9 5.4 12.8 13.5 24.6 50 Comparison 40 Personnel (hr/yr) 9.5 28.0 24.0 28.5 21.7 20.7 6.0 30 Personnel ($/yr) 823 3,060 2,380 2,808 2,138 1,890 380 Subcontractor 20 0000 0700 Efficiency Removal % TSS Cost ($/yr) 10 Total Operational 823 3,060 2,380 2,808 2,138 1,890 1,080 0 Cost ($/yr) Operation/Capital 6% 19% 14% 18% 8% 8% 4% Cost (%)

DIN Removal Efficiencies TP Removal Efficiencies

100 100

90 90

80 80

70 70

60 60

50 50

40 40

30 30

20 20 TP % Removal Efficiency Removal % TP DIN % Removal Efficiency % DIN Removal 10 10

0 0

15 5/20/2014

A tale of two raingardens

16 5/20/2014

Tools of the trade… Maintenance solved?

Tools of the trade… Case Studies

17 5/20/2014

Bioretention Parking Lot Retrofit, Result of Maintenance Durham, NH

Maintenance Minimum Estimated Time Number of Pollutant Activity Frequency Commitment Employees Amount (per year) 30 minutes taking time Inspection 2 times per year to fill out checklist in 1 TSS 179 lbs. UNHSC document1 Cigarette Butts 4,392 Clean Pretreatment Misc. Trash 752 1 time per month on Trash Screens and 30-60 minutes per visit 1 average Pick Up Trash in system

Spring Cleaning 1 time per year 4 hours 2

Total personnel hours per year: 16-21 hours Estimated $1,500 – $2,000 (30,000 sf of IC Treated)

18 5/20/2014

The Unexpected Questions?

Webcast Outline

• BMP Maintenance Today (Laurel Williamson) • The New Maintenance Paradigm (Tom Schueler) • Evolution of a Stormwater Maintenance Business (Ted Scott) Design Impacts on Stormwater Q&A Maintenance

• Costs of Maintenance (Jamie Houle) Theodore E. Scott, PE, CPESC, LEED AP Q&A Executive Vice President and Founder

• Designs Gone Wrong (Ted Scott) • The Future of Stormwater Inspections (Tom Schueler) Q&A

• Summary and Wrap‐Up

19 5/20/2014

Stormwater Treatment Facilities Conveyance Infrastructure Erosion protection

Surface transition

Metal Pipe 16 Gauge

HDPE pipe

Timber retaining wall

Is there an appropriate Vegetation topsoil spec? Bioretention groundcover

Erosion and sediment

20 5/20/2014

Flat trash rack Flat trash rack

Trash rack opening size

Grading Slope steepness vs. geotechnical findings

Parking lot island bioretention

21 5/20/2014

Outfall slope Access Hydraulic Slope Jump Sediment Deposition Equipment access Weir location

Hydraulic Pool Depth Pool Width Jump

Manhole location Access to rows Equipment reach

Skyhook access

Vehicular access

22 5/20/2014

Fence and slopes Take Away Points

Manhole steps, please! •Design for solids •Understand maintenance operations •Know the maintenance 4 million lbs pollutants per year equipment •Consider removal of materials

Increased Inspector Workload

The Future of Stormwater  MS4 requirements to inspect local BMPs Inspections  Need to evaluate older BMPs for retrofit potential Time to Evolve  CBP TMDL BMP performance verification  Shift to more distributed LID practices  Need for tighter inspection during practice construction  Forensic BMP investigations to fix failed BMPs  Verifying homeowner BMPs

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Need to sharply reduce the time for most routine inspections Visual Indicator Approach

 Simple visual indicators in order to conduct rapid  Use rapid visual indicators investigations of BMPs

 Dump long checklists  Used during routine maintenance, inspections and performance verifications  Pass good facilities quickly and move on  Maintenance punch list of actions to keep BMP functional  Flag bad or failing practices for a more intensive  More severe cases trigger a more in-depth investigation investigation

Visual Inspection Framework Visual Indicators

Goal: Evaluate BMP in 30 minutes or less

How: Prescribed sequence to grade each visual Construction Project Routine Routine Performance Inspection Acceptance Maintenance Inspection Verification indicator as Pass, Minor, Moderate or Severe

Result: Punch-list of tasks to follow-up on to bring the BMP up to speed

Add legacy BMP BMPs into Forensic BMP Investigation Limit the use of expensive engineer time for the limited Inventory inventory (FBI) inspections where they are really needed.

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#1 Inlet Obstruction INLET Visual Indicator Approach for ZONE Bioretention Pass Minor

5 1

4 Good condition Remove sediment, debris 2 Moderate Severe

3 FBI

Removal of sediment, obstruction Sediment staining = entry problem

Integrating Technology http://fulcrumapp.com/apps/bioretention-illustrated/

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Become a stormwater educator, field Expand the Inspection Work Force trainer and maintenance referral service

 Summer BMP field crews  Provide technical assistance and  Landscape maintenance crews troubleshooting to individual homeowners/HOAs  Erosion and sediment control inspectors  Train summer field crews and  Third party or private sector inspection landscape contractors on  Homeowner BMP auditors maintenance basics  Self-reporting inspections for some BMPs  Inspection and Maintenance Certifications  Forensic BMP investigators and project cost estimators

Videos: LID Construction, Maintenance, & Inspection (English & Spanish)

Q & A

Follow‐Up Questions: [email protected] http://www.youtube.com/user/CenterforWatershed

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In Summary… Upcoming Webcasts • We need more BMP maintainers! • How to Pick the Right Vegetation for Bioretention & Its Cousins • Consider future maintenance when selecting – June 11, 2014, 1:00 –3:00 PM EST the BMP type • Stream Restoration as a Pollutant Reduction Strategy • Good maintenance starts with good designs – September 10 2014, 1:00 –3:00 PM EST and installations • Series 2: Implementing TMDLs • Routine vs. annual inspections = different – Local TMDLs & Regional/River Basin TMDLs actions – Retrofitting Existing Stormwater Ponds & Basins – October 8, 2014,& November 12, 1:00 –3:00 PM EST • Inspection & maintenance efficiency is key now and in the future See our 2014 webcasts http://www.cwp.org/webcast‐home

Post‐Webcast Information The Center for Watershed Protection • Participation Certificate – Participation certificates are also available. If you have multiple attendees, please save the Association (CWPA) certificate to your computer. You can type the attendees name in •A forum for sharing ideas, resources, and expertise the name field and then print the certificate. •Training, education, collaboration, and professional development Benefits include: •Webcast discounts –save hundreds •Watershed Science Bulletin online articles •Free access to Online Watershed Library •Software and publication discounts •Exclusive training for members

Visit us at www.cwp.org/benefits for more information

27 5/20/2014

Speaker Contact Information Thanks to our webcast sponsor! Laurel Williamson Ted Scott PE (MD), CPESC, MSP, LEED AP Master of Ceremonies and Host Executive Vice President and Founder, Stormwater and Watershed Planner Stormwater Maintenance & Consulting Center for Watershed Protection, Inc. 10944 Beaver Dam Road, Suite C 919 2nd Street, S.E. Hunt Valley, Maryland 21030 Phone: (434) 293‐5793 Maryland: (410) 785‐0875 Email: [email protected] Virginia: (703) 652‐0488 http://www.cwp.org/ District of Columbia: (202) 787‐1971 Phone cell: (410) 458‐2651 Email: [email protected] www.SWMaintenance.com www.MdSWM.com ARCADIS works in partnership with its clients to deliver WBE / DBE Certified sustainable solutions that manage stormwater as a resource: Tom Schueler James Houle, MA, CPSWQ providing control and treatment, reducing flood risk and Executive Director Program Manager Chesapeake Stormwater Network Stormwater Center compliance costs, and enhancing water quality, all while 8030 Main Street, 3rd Floor University of New Hampshire building resilient communities. Ellicott City, MD 21043 244 Gregg Hall Phone: (410) 750‐7635 Durham, NH 03824 Email: [email protected] Phone: 603‐767‐7091 http://chesapeakestormwater.net/ Email: [email protected] www.arcadis‐us.com http://www.unh.edu/unhsc/

Thanks for viewing our Series 1: The Life of a Stormwater Practice Session 3: BMP Maintenance

6/16/2014

Watershed & Stormwater Management • Webcast Series Ernst Conservation Seeds supplies high quality native and naturalized plant seeds, mixes and live plant products for restoration, beautification, reclamation and conservation.

Watershed professionals and landscape architects are recognizing how important natives are in the restoration of our North American ecology, and that natives are the best choice for use in almost every How to Pick the Right Vegetation for scenario. Ernst Conservation Seeds knows how to grow and harvest Bioretention and its Cousins native seeds in a production environment. We take the time to help our customers replicate that success in their own unique applications.

Thanks to our webcast sponsor!

Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

Welcome to the Webcast To Adjust How the Slides • Continuing Education Credits –We are offering PDHs for our Appear on Your Screen –To watershed and stormwater management webcast series. A registered make the slide area larger, go to Full attendee must watch the entire webcast to be eligible to earn the Screen under the Meeting Tab. CEU. A pdf Certificate of Completion will be sent out after webcast to the person who registered for the webcast. The varying nature of To Answer a Poll Question – certification requirements for each state means we cannot guarantee Polling questions appear during the that CEU’s will be awarded and it is up to the individual to determine webcast. To answer a poll question, click if CEU’s or PDH’s will be awarded based on the policies of their local on the radio button to the left of your certifying board. Email [email protected] with questions. answer and click submit. Do not type your answer in the chat box. • Resources –After the webcast, we will email a resources sheet, speaker contact information, and the presentation. To Ask a Question – The right corner of the screen contains a Q&A chat box. Type your question in the box and click on the send question icon to submit it. We will try to answer as many questions as possible during and after the webcast.

Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

POLL QUESTION #1 How many people are participating today Kevin Staso in the webcast at your location? Sales Director Dave Hirschman North Creek Nurseries, Inc. Program Director, Center a) Just me b) 2 to 5 Wes Michaels, ASLA, PLA, LEED AP Associate Professor, Lousiana State University Principal, Spackman, Mossop and Michaels c) 6 to 10 d) More than 10

Bryan Seipp Nate Cormier, ASLA, PLA, LEED AP Watershed Manager/Professional Forester Principle Landscape Architect, SvR Design Company Center

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Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

POLL QUESTION #2 Webcast Outline I work for a • Introduction, Vegetation in Bioretention (Dave) • Phase I community •Vegetation Selection from a Horticultural Perspective (Kevin) • Phase II community •Q & A • Municipality • State government •Vegetation & Design Context (Nate) • Federal government •Q & A • Private consultant •Vegetation & The Big Easy (Wes) • Nonprofit organization •Q&A • University • Other (tell us in the chat box) •Other Observations (Bryan) • Conclusions and Resources

Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

The Style of Bioretention

Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

Context

Institutional, Medium Visibility

Public, High Visibility

Small-Scale, Residential

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Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series Maintenance? Climate, Other Factors

Watershed & Stormwater Management • Webcast Series

Vegetation: • Public Response • Indicator of Success/Failure of Practice • Key to Performance

1. Understand plant adaptation to site conditions 2. Plant community based designs ensure long term success 3. Design & species selection tools

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Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

Webcast Outline • Introduction, Vegetation in Bioretention (Dave) •Vegetation Selection from a Horticultural Perspective (Kevin) •Q & A •Vegetation & Design Context (Nate) Q & A •Q & A •Vegetation & The Big Easy (Wes) Follow‐Up Questions: [email protected] •Q&A •Other Observations (Bryan) • Conclusions and Resources

maintenance

BIORETENTION VEGETATION lessons learned & explorations

Nate Cormier, ASLA, PLA, LEED AP Principal Landscape Architect, SvR Design Company Vice President, Landscape Architecture Foundation

Center for Watershed Protection 11 June 2014

Saltwater State Park, SvR

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Saltwater State Park, SvR Saltwater State Park, SvR

Saltwater State Park, SvR

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High Point Redevelopment, SvR

seasons

Winslow Way, SvR Winslow Way, SvR

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Swale Concept – Summer, SvR Swale Concept – Winter, SvR

size

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Thornton Creek Water Quality Channel, SvR

designed experiments Thornton Creek Water Quality Channel

Thornton Creek Water Quality Channel, SvR Washington Stormwater Center, SvR

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framing Gardens of Versailles, André Le Nôtre

cues to care

Buckman Heights Apartments, Portland character

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Rush University Medical Center, urban amenity Hitchcock Design Group

SW 12th Ave, Portland BES

Maynard Green Street, SvR Growing Vine Street, SvR and Buster Simpson

Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

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Watershed & Stormwater Management • Webcast Series

How to Pick the Right Q & A Vegetation for Bioretention

Follow‐Up Questions: [email protected] WES MICHAELS SPACKMAN MOSSOP MICHAELS LSU URBAN LANDSCAPE LAB

KELLER LIBRARY, NEW ORLEANS: SPACKMAN MOSSOP MICHAELS

Potential Difficulties in New Orleans Nassauer: Cues to Care

1. Lack of Local Precedents 1. Mowing and Orderliness 2. Sensitivity to Blighted Conditions 2. Colorful Flowers 3. Investments in Maintenance 3. Edges and Rows 4. Knowledgeable Contractors 4. Boundaries 5. Plant Sources 5. Sign and Ornaments

BIOSWALE: NEW ORLEANS MALINALCO PRIVATE RESIDENCE, MEXICO, MARIO SCHJETNAN

#1: Mowing and Orderliness #1: Mowing and Orderliness

SHANGRI-LA BOTANICAL GARDEN, ORANGE, TX: JEFFERY CARBO LANDSCAPE ARCHITECTS CT WATER TREATMENT PLANT, MICHAEL VAN VALKENBURG ASSOCIATES

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#2: Colorful #2: Colorful

CLEAN WATER IOWA: IOWA DEPARTMENT OF AGRICULTURE AND LANDFlowers STEWARDSHIP CORNELL PLANTATIONS BIOSWALE GARDENS: CORNELLFlowers UNIVERSITY

#3: Edges and Rows #3: Edges and Rows

MEDLOCK AMES TASTING ROOM, CALIFORNIA: NEWSON BYRD WOLTZ RESIDENTIAL GARDEN, SAN FRANCISCO: BIONIC

#4: Boundaries #4: Boundaries

STORMWATER PLANTER, PORTLAND, OR HIGH POINT NEIGHBORHOOD, FROM GREEN INFRASTRUCTURE DIGEST

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#5: Signs and Ornamentation #5: Signs and Ornamentation

NE SISKIYOU GREEN STREET, PORTLAND: KEVING ROBERT PERRY BEACON MOUNTAIN, SEATTLE, WA: SVR DESIGN COMPANY

Hitchmough: Plants and Public Acceptance

1. Height 2. Plant Structure 3. Seasonal Memory 4. Cultural Recognition 5. Exotic vs. Native #1: Height: Low Grasses, Tall Flowers

LONDON OLYMPICS PARK MEADOWS: JAMES HITCHMOUGH AND NIGEL DUNNETT MEADLOCK AMES TASTING ROOM, CALIFORNIA: NELSON BYRD WOLTZ

#1: Height: Low Grasses, Tall Flowers #2: Plant Structure

RESIDENTIAL BIOSWALE WITH SWAMP SUNFLOWER TEST PLOTS, JAMES HITCHMOUGH: UNIVERSITY OF SHEFFIELD

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#2: Plant Structure #2: Plant Structure

PRIMULA VULGARIS DRAWING: WATSON, L. AND DALLWITZ, MJ. HTTP://DELTA-INTKEY.COM JAMES HITCHMOUGH, MARKUS WAGNER: PRIMULA SPECIES IN URBAN DRAINAGE SWALES

#3: Seasonal Memory #4: Cultural Recognition

SHEFFIELD BOTANIC GARDENS: JAMES HITCHMOUGH LONDON OLYMPICS BIOSWALE: HARGREAVES ASSOCIATES + JAMES HITCHMOUGH

#5: Exotic vs. Native

OXFORD BOTANICAL GARDEN: JAMES HITCHMOUGH KELLER LIBRARY, NEW ORLEANS: SPACKMAN MOSSOP MICHAELS

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LOUISIANA IRIS + BALD CYPRESS (POND CYPRESS) SEDGES

EQUISETUM (HORSETAIL) VETIVER GRASS

SWAMP SUNFLOWER PACKERA/SENECIO (BUTTERWEED)

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MARK PASTOREK: PASTOREK HABITATS PACKERA/SENECIO (BUTTERWEED)

Watershed & Stormwater Management • Webcast Series

Round Robin

KELLER LIBRARY, NEW ORLEANS: SPACKMAN MOSSOP MICHAELS

Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series Grass? Matching Design to Community “Readiness to Accept”

Should every BMP hit a home run?

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Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

Upcoming Webcasts

• Stream Restoration as a Pollutant Reduction Strategy – September 10 2014, 1:00 –3:00 PM EST

• Series 2: Implementing TMDLs – Local TMDLs & Regional/River Basin TMDLs Other Observations and Summary • October 8, 2014, 1:00 –3:00 PM EST – Retrofitting Existing Stormwater Ponds & Basins • November 12, 1:00 –3:00 PM EST

See our 2014 webcasts http://www.cwp.org/webcast‐home

Watershed & Stormwater Management • Webcast Series Watershed & Stormwater Management • Webcast Series

Post‐Webcast Information The Center for Watershed Protection • Participation Certificate – Participation certificates are also available. If you have multiple attendees, please save the Association (CWPA) certificate to your computer. You can type the attendees name in the name field and then print the certificate. •A forum for sharing ideas, resources, and expertise •Training, education, collaboration, and professional development Benefits include: •Webcast discounts –save hundreds •Watershed Science Bulletin online articles •Free access to Online Watershed Library •Software and publication discounts •Exclusive training for members

Visit us at www.cwp.org/benefits for more information

Ernst Conservation Seeds supplies high quality native and naturalized plant seeds, Speaker Contact Information mixes and live plant products for restoration, beautification, reclamation and conservation.

Dave Hirschman Nate Cormier, ASLA, PLA, LEED AP Watershed professionals and Master of Ceremonies and Host Principle Landscape Architect landscape architects are recognizing Program Director SvR Design Company Center for Watershed Protection, Inc. 1205 Second Avenue, Suite 200 how important natives are in the 919 2nd Street, S.E. Seattle, WA 98101 restoration of our North American Charlottesville, VA 22902 Phone: (206) 223‐0326 Phone: (434) 293‐6355 Email: [email protected] ecology, and that natives are the best Email: [email protected] www.svrdesign.com choice for use in almost every http://www.cwp.org/ Wes Michaels, ASLA, PLA, LEED AP scenario. Ernst Conservation Seeds Kevin Staso Associate Professor, College of Art & Design Louisiana State knows how to grow and harvest University Sales Director Phone: (225) 578‐1445 North Creek Nurseries, Inc. native seeds in a production Email: [email protected] 388 North Creek Road http://design.lsu.edu/landscape/?page_id=450 environment. We take the time to Landenberg, PA 19350 Phone: (610) 255‐0100 Principal, Spackman, Mossop and Michaels help our customers replicate that Email: [email protected] 7735 Maple Street success in their own unique http://www.northcreeknurseries.com/ New Orleans, LA 70118 Phone: (504) 218‐8991 applications. http://spackmanmossopmichaels.com/ Thanks to our webcast sponsor!

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Watershed & Stormwater Management • Webcast Series

Thanks for viewing our How to Pick the Right Vegetation for Bioretention and its Cousins

City of Bend Galveston Corridor Project

Task Force Meeting

DATE/TIME: November 6, 2013 LOCATION: Bend – City Council Chambers INVITEES: City of Bend: Nick Arnis HDR: Stephanie Serpico Task Force: Jason Adams, David Gurule, Joanne Richter, Stacey Stemach, Al Tozer, Garrett Wales, Nicole Weathers

TIME AGENDA ITEM Facilitator

12:00 – 12:05 Welcome and Introductions Arnis

12:05 – 12:35 Serpico Meeting Objectives: Roundtable discussion: “What do you want to accomplish with this project?”

12:35 – 12:50 Serpico Members – who are we missing? Interest groups, neighborhood associations, adjacent neighbors

Upcoming meetings 12:05 – 12:55 Serpico 1. Task Force Chartering a. Identify chair person b. Review existing charter, goals/objectives from Vision document c. Develop roles and responsibilities of the team d. Discuss how we are going to work together – communication internally and outside of the group. e. Decision making – consensus, minority reports f. Meetings- when, how often, duration, location 2. Project Kickoff Meeting a. Identify goals and objectives of the project. b. Focus on core values and design principles of the corridor. c. Walk the corridor with project team to identify concerns, issues, ideas, etc.- optional 3. Review streetscape ideas, opportunities and constraints of the corridor. 4. Design Workshop 12:55 – 1:00 Comments, questions, suggestions Serpico

Page 1 of 1 Travel Lane: 10.5’ wide

Center Lane: 11’ wide median with left-turn pockets

On-Street Parking: None

Bike Accommodations: 6’ lane with 2’ buffer

Existing Driveways: Most remain; 2 combined as single access

Sidewalk / Landscape: 6’ wide sidewalk that meanders within a 10’ landscape parkstrip

Stormwater Planters: Yes

Amenity Spaces: Potential for sidewalk patios STREET SECTION CHARACTERISTICS

N PLAN DIAGRAM 0’ 100’ CONCEPT A NW GALVESTON AVENUE BEND, OREGON 12 JUNE 2014 Travel Lane: 10.5’ wide

Center Lane: 11’ wide median with left-turn pockets

On-Street Parking: Partial, between driveways (~12 spaces)

Bike Accommodations: 6’ lane with 2’ buffer

Existing Driveways: Some removed to accommodate parking

Sidewalk / Landscape: 14’ wide flexible zone that accommodates parking, sidewalk, plazas, and landscaping

Stormwater Planters: Yes

Amenity Spaces: Potential for sidewalk patios STREET SECTION CHARACTERISTICS

N PLAN DIAGRAM 0’ 100’ CONCEPT B NW GALVESTON AVENUE BEND, OREGON 12 JUNE 2014 Travel Lane: 11’ wide

Center Lane: None

On-Street Parking: Partial, between driveways (~22 spaces)

Bike Accommodations: 6’ lane with 2’ buffer

Existing Driveways: Some removed to accommodate parking

Sidewalk / Landscape: 21’ wide flexible zone that accommodates parking, sidewalk, plazas, and landscaping

Stormwater Planters: Yes

Amenity Spaces: Potential for sidewalk patios STREET SECTION CHARACTERISTICS

N PLAN DIAGRAM 0’ 100’ CONCEPT C NW GALVESTON AVENUE BEND, OREGON 12 JUNE 2014 Travel Lane: 12’ wide

Center Lane: None

On-Street Parking: None - to accommodate wide parkstrip

Bike Accommodations: 6’ wide off-street path adjacent to sidewalk

Existing Driveways: Mid-block driveways/alleys remain; others removed to prevent bike/car conflicts

Sidewalk / Landscape: 10’ wide continuous parkstrip creates boulevard feel; 7’ sidewalk adj. to bikeway

Stormwater Planters: Yes

Amenity Spaces: Potential for sidewalk patios STREET SECTION CHARACTERISTICS

N PLAN DIAGRAM 0’ 100’ CONCEPT D NW GALVESTON AVENUE BEND, OREGON 12 JUNE 2014 Travel Lane: 11’ wide

Center Lane: None

On-Street Parking: Partial, between driveways (~20 spaces)

Bike Accommodations: 6’ lane with 2’ buffer on each side

Existing Driveways: Mid-block driveways/alleys remain; others removed to prevent bike/car conflicts

Sidewalk / Landscape: 19’ wide with parking, landscaping, and a 7’ continuous sidewalk

Stormwater Planters: Yes

Amenity Spaces: Potential for sidewalk patios STREET SECTION CHARACTERISTICS

N PLAN DIAGRAM 0’ 100’ CONCEPT E NW GALVESTON AVENUE BEND, OREGON 12 JUNE 2014 Travel Lane: 11’ wide

Center Lane: None

On-Street Parking: Continuous (~26 spaces)

Bike Accommodations: 6’ wide cycletrack with 3’ buffer

Existing Driveways / Alleys: All removed to accommodate bike safety

Sidewalk / Landscape: 12’ wide to accommodate landscaping and 8’ continuous sidewalk

Stormwater Planters: Yes

Amenity Spaces: Potential for sidewalk patios STREET SECTION CHARACTERISTICS

N PLAN DIAGRAM 0’ 100’ CONCEPT F NW GALVESTON AVENUE BEND, OREGON 12 JUNE 2014 Travel Lane: 10.5’ wide

Center Lane: Continuous

On-Street Parking: None

Bike Accommodations: 6.5’ lane on-street

Existing Driveways / Alleys: All remain

Sidewalk / Landscape: 17.5’ wide to accommodate landscaping and 8’ sidewalk ~on current alignments

Stormwater Planters: Potential for some in wider park strips

Amenity Spaces: Potential for some in wider park strips STREET SECTION CHARACTERISTICS

N PLAN DIAGRAM 0’ 100’ CONCEPT G NW GALVESTON AVENUE BEND, OREGON 12 JUNE 2014 City of Bend Galveston Corridor Project

Task Force Workshop

DATE/TIME: June 12, 2014 / 11:30am – 1:30pm

LOCATION: TBD - Bend, Oregon

INVITEES: City of Bend: Nick Arnis, Robin Lewis HDR: Stephanie Serpico SERA: Matt Arnold DKS: Chris Maciejewski Task Force: Jason Adams,Marshall Greene, David Gurule, John Kelly, Brian Potwin, Joanne Richter, Stacey Stemach, Al Tozer, Garrett Wales, Nicole Weathers

Bring your own lunch

TIME AGENDA ITEM Facilitator

11:30 – 11:35 Welcome Serpico Review Roles and Responsibilities of the Task Force  The Task Force is an advisory committee providing best recommendations 11:35 – 11:45 to City staff, Council, general public, and the design team. It is important for Arnold Task Force Members to support the process that was used to develop the final product. Traffic Analysis Results 11:45 – 12:00  2 vs. 3 lane Maciejewski  Draft intersection results at Harmon/Galveston/Columbia Review Cross Section Concept  Concepts A – F 12:00 – 1:20  Street cross section, plan view and characteristics Arnold  Discuss pros and cons of each one  Screen against criteria Next steps: Review action items and decisions 1:20 – 1:30 Serpico Next Task Force Meeting  Review intersection screening criteria and goals/objectives

Open Action Items Date Action Responsible Comments 01/30/14 Check to see if bicycle data was collected and Chris Provide information if available. separated in east/west direction. 12/05/13 Set up a public work session Stephanie To occur after the next task force 01/30/14 workshop

Page 1 of 2 City of Bend Galveston Corridor Project

Task Force Workshop

Decisions: Date Decision 12/05/13 Al Tozer was nominated as Chair. 12/05/13 Tom Atkins was appointed to the Task Force. Keep the Task Force at 11 members. 12/05/13 On upcoming agendas, list the members of the Task Force who cannot. 12/05/13 Voting structure – see charter for process. 01/30/14 Work sessions will be held at night for 2 ½ to 3 hours.

Completed Action Items: Date Action Responsible Comments/Date 01/30/14 Update vision/goals and evaluation criteria with Steph/Matt Emailed to task force comments 02/06/14 12/05/13 Set up SharePoint site for project Stephanie Completed 12/18/14 12/05/13 Develop a schedule with a tentative construction date. Steph/Nick Completed 01/27/14 12/05/13 Distribute goals/objectives/evaluation criteria Stephanie Completed 01/27/14 12/05/13 Set up cross section workshop in January Stephanie Held 01/27/14 11/06/13 Contact Marshall about his interest in joining the task Jason Marshall has accepted force. to join – 11/6/13 11/06/13 Contact John and Brian about interest in joining task Nick Brian and John force. confirmed 11/7/13 11/06/13 Set up next Task Force meeting Stephanie Held 12/05/2013 11/06/13 Send out scope of work for project and draft schedule Stephanie Completed 11/7/13

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