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Jersey Water Works Green Infrastructure Training at NJ Society of Municipal Engineers 9/14/16 Quarterly Meeting

The Green Infrastructure Committee of Jersey Water Works presented to the New Jersey Society of Municipal Engineers about green infrastructure on September 14, 2016.

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Jersey Water Works Green Infrastructure Training at NJ Society of Municipal Engineers 9/14/16 Quarterly Meeting

  1. 1. JerseyWaterWorks Green Infrastructure Training NewJerseySocietyofMunicipalEngineers September 14, 2016 Jennifer Gonzalez,City of Hoboken Green Infrastructure Subcommittee Co-Chair
  2. 2. Panel • Jeremiah Bergstrom, Rutgers University • Russ Dudley,TetraTech • Rodman Ritchie,AKRF • Jennifer Gonzalez, City of Hoboken • Kandyce Perry, New Jersey Future • LouiseWilson, New Jersey Future
  3. 3. 3:30 PM Adjourn Agenda Part 1 1:00 PM Welcome 1:10 PM What is green infrastructure and why does it matter? 1:40 PM Green vs. Grey: Case Study Discussion 2:35 PM Green Infrastructure Survey Part 2 2:55 PM The Path Forward:Tools and Options forTowns 3:10 PM Lessons from Hoboken 3:25 PM Raffle 2:45 PM Break
  4. 4. Introducing
  5. 5. SharedGoals
  6. 6. CollaborativeStructure
  7. 7. Best Practices Green Infrastructure Municipal Outreach Finance Community Engagement Committees CSO Network
  8. 8. GICommittee Purpose The Green Infrastructure subcommittee works to promote and advance construction of green infrastructure projects in CSO communities and across the state.
  9. 9. GICommitteeGoals &Subgoals
  10. 10. Work Plan Action Items Volunteers Action 1: Sustainable Jersey Actions Chris Obropta, Jen Gonzalez, Maureen Krudner, Jennifer Duckworth, MariaWatt Action 2: Green Infrastructure in Parks DanVan Abs, Chris Sturm Action 3: Green Infrastructure Monitoring Database NickTufaro, Heather Fenyck, Maria Watt Action 4: Green Streets Rob Pirani, Jen Gonzalez, Jennifer Duckworth, Maureen Krudner, David Antonio Action 5: Green Infrastructure in Construction/Development Kandyce Perry, LouiseWilson Action 6: Citizen’s Handbook for Green Infrastructure AshwaniVasishth ,TimVan Epp Why are we here?
  11. 11. Become a member today!
  12. 12. Sign up for theJersey WaterWorks Newsletter!
  13. 13. Part I TheWhat,Where, Why and How of Green Infrastructure
  14. 14. Introduction to Green Infrastructure Jeremiah Bergstrom, LLA, ASLA Christopher C. Obropta, Ph.D., P.E. September 14, 2016
  15. 15. Water Resources Program NJDEP Definition "Green Infrastructure" means methods of stormwater management that reduce wet weather/stormwater volume, flow, or changes the characteristics of the flow into combined or separate sanitary or storm sewers, or surface waters, by allowing the stormwater to infiltrate, to be treated by vegetation or by soils; or to be stored for reuse. Green infrastructure includes, but is not limited to, pervious paving, bioretention basins, vegetated swales, and cisterns.
  16. 16. Water Resources Program US EPA Definition Green infrastructure is a cost-effective, resilient approach to managing wet weather impacts that provides many community benefits. While single- purpose gray stormwater infrastructure— conventional piped drainage and water treatment systems—is designed to move urban stormwater away from the built environment, green infrastructure reduces and treats stormwater at its source while delivering environmental, social, and economic benefits.
  17. 17. Water Resources Program What is Green Infrastructure? …an approach to stormwater management that is cost- effective, sustainable, and environmentally friendly Green Infrastructure projects: • capture • filter • absorb • reuse stormwater to help restore the natural water cycle.
  18. 18. Water Resources Program How does Green Infrastructure work? Green Infrastructure practices use soil and vegetation to recycle stormwater runoff through infiltration and evapotranspiration.
  19. 19. Water Resources Program A Brief History of Stormwater Management
  20. 20. Water Resources Program 1st Attempt at Stormwater Management Capture all runoff, pipe it, and send it directly to the river . . .prior to mid 1970’s
  21. 21. Water Resources Program 2nd Iteration of Stormwater Management Capture runoff, detain it, release it slowly to the river…mid 1970’s to 2004 − Detain peak flow during large storm events for 18 hours (residential) or 36 hours (commercial) − Reduce downstream flooding during major storms − Use concrete low flow channels to minimize erosion, reduce standing water, quickly discharge low flows − Does not manage runoff from smaller storms allowing stormwater to pass through the system − Directly discharges stormwater runoff to nearby stream, waterway, or municipal storm sewer system (at a controlled/managed rate)
  22. 22. Water Resources Program 3rd Generation of Stormwater Management • Reduce stormwater runoff volume • Reduce peak flows and flooding …and…. • Maintain infiltration and groundwater recharge • Reduce pollution discharged to local waterways abc Action News, August 27, 2012
  23. 23. Water Resources Program 2004 NJ Stormwater Regulations Municipal “Phase II” NJPDES Stormwater Permitting Rules (N.J.A.C. 7:14a) Stormwater Management Rules (N.J.A.C. 7:8) • Municipalities and large public complexes must obtain NJPDES permits for their storm sewer system • Permittees must develop, implement, and enforce a stormwater program that protects water quality • Permittees must prepare and implement a Stormwater Pollution Prevention Plan (SPPP): • Municipal stormwater management plan • stormwater control ordinance • public education program • Sets forth stormwater management goals for new development: • Reduce flood damage • Reduce soil erosion • Protect public safety through proper design and operation of stormwater management basins • Minimize increases in peak runoff • Maintain groundwater recharge • Protect water quality • Sets forth the required components of regional and municipal stormwater management plans
  24. 24. Water Resources Program Current Stormwater Management Approach • Use nonstructural management strategies • Protect communities from increases in stormwater volume and peak flows as a result of new development • Maintain groundwater recharge • Protect waterways from pollution carried in stormwater runoff, August 28, 2011
  25. 25. Water Resources Program 2015 CSO Individual Permits • Under this permit action, the permittee will be required to evaluate a broader range of control alternatives… The control alternatives shall include: green infrastructure, increased storage in the collection system, STP expansion/storage, I/I reduction, sewer separation, discharge treatment and bypass of secondary treatment at the STP. • The permit requires the permittee to consider at least the following: Green infrastructure which allows for stormwater management close to its source, providing both water quality treatment and some volume control. The volume that is retained onsite and kept out of the sewer system can help delay expensive gray infrastructure maintenance and upgrades. Some examples of green infrastructure measures include, but are not limited to, pervious pavements, street bump-outs, rain gardens, and tree trenches.
  26. 26. Water Resources Program Why Green infrastructure? • Remediates flooding • Improve water quality • Reduces combined sewer overflows • Cost-effective • Small-scale systems that capture runoff near its source • Mimic and help restore the natural hydrologic cycle • Enhances aesthetics • Cleans the air • Reduces heat island effect
  28. 28. Water Resources Program Green Infrastructure Systems: • Vegetative Systems • Bioretention Systems/Rain Gardens • Stormwater Planters • Harvesting Systems • Cistern/Rain Barrel • Downspout Planter Boxes • Storage Systems • Street Trees/Stormwater Tree Pits • Pervious Pavement
  29. 29. Water Resources Program Difference between the types of systems: • Vegetative Systems: focus on reducing water quality impacts. These systems are typically located close to the sources of runoff and can manage the smaller storms of several inches. The main treatment mechanisms are infiltration, filtration, and evapotranspiration. • Harvesting Systems: focus on the conservation, capture, storage, and reuse of rainwater. These systems are located close to residential and commercial buildings. • Storage Systems: provide storage of stormwater, quantity control, and infiltrate stormwater runoff. These systems are typically located close to runoff sources within residential, commercial, and industrial landscapes. The main treatment mechanism is reducing peak flows of stormwater by storing it before it enters the sewer system.
  30. 30. Water Resources Program Bioretention Systems/Rain Gardens Vegetative System Landscaped, shallow depression that captures, filters, and infiltrates stormwater runoff.
  31. 31. Water Resources Program Bioretention Systems / Rain Gardens How it works: These systems capture, filter, and infiltrate stormwater runoff using soils and plant material. They are designed to capture the first few inches of rainfall from rooftops, parking areas, and streets. Benefits: Removes nonpoint source pollutants from stormwater runoff while recharging groundwater Restore/“mimic” predevelopment site hydrology • Infiltration • Evapotranspiration Improve water quality • Sedimentation, filtration, & plant uptake • Microbial Activity Add aesthetic value • Plant selection Vegetative System
  32. 32. Water Resources Program Bioretention System/Rain Garden
  33. 33. Water Resources Program Bioretention Systems / Rain Gardens Vegetative System
  34. 34. Water Resources Program Vegetative System Rain garden at Catto School in Camden, NJ
  35. 35. Water Resources Program Vegetative System Rain garden installation at Ferry Avenue Library in Camden, NJ
  36. 36. Water Resources Program Stormwater Planters Vegetative System Vegetated structures that are built into the sidewalk to intercept stormwater runoff from the roadway or sidewalk.
  37. 37. Water Resources Program Stormwater Planters How it works: • It is a structural bioretention system that is installed in a sidewalk • Contains a layer of stone that is topped with bioretention media and plants or trees • Captures stormwater runoff from the roadway and sidewalk • Once the system fills up, runoff flows back into the street or into an overflow drain which connects to the sewer system Benefits: • Allows water to infiltrate into the ground Vegetative System
  38. 38. Water Resources Program Stormwater Planter
  39. 39. Water Resources Program Stormwater Planters Vegetative System Typically, 4 feet wide by 20 feet long
  40. 40. Water Resources Program Vegetative System Stormwater Planter at the Brimm School in Camden, NJ
  41. 41. Water Resources Program Vegetative System Stormwater Planters at Community Garden in Camden, NJ
  42. 42. Water Resources Program Cisterns/ Rain Barrels Vegetative System These systems capture rainwater, mainly from rooftops, in cisterns or rain barrels. The water can then be used for water garden, washing vehicles, or for other non- potable uses.
  43. 43. Water Resources Program Cistern/ Rain Barrel How it works: • Capture, diversion, and storage of rainwater Benefits: • Eliminates need for complex and costly distribution systems • Provides additional water source • Landscape irrigation • Reduces flow to stormwater drains • Reduces non-point source pollution • Delays expansion of existing water treatment plants • Reduces consumers’ utility bills Harvesting System
  44. 44. Water Resources Program Rainwater Harvesting
  45. 45. Water Resources Program Cistern at the Neighborhood Center in Camden, NJ Harvesting System
  46. 46. Water Resources Program Cistern at St. Bartholomew’s Church in Camden, NJ Harvesting System
  47. 47. Water Resources Program Harvesting System Cistern at Front Street Community Garden in Camden, NJ
  48. 48. Water Resources Program Downspout Planters Harvesting System Wooden or concrete boxes with plants installed at the base of the downspout that provide an opportunity to beneficially reuse rooftop runoff.
  49. 49. Water Resources Program Downspout Planter: Harvesting System How it works: • Constructed boxes placed against buildings • Contains stone/gravel topped with sandy compost mixture and plants • Designed with underdrain and overflows • Disconnects downspouts Benefits: • Aesthetics • Provide some rainfall storage Harvesting System
  50. 50. Water Resources Program Downspout Planter
  51. 51. Water Resources Program Design Parameters for Downspout Planters: • Planter box must be adequately reinforced to hold soil, stone, and plants • Limited capacity for stormwater retention – mostly infiltration • Soil infiltration rate is 5.0 inches per hour • Underdrains are installed to drain the water after the storm event
  52. 52. Water Resources Program Downspout Planter: Harvesting System Harvesting System
  53. 53. Water Resources Program Downspout Planter Boxes at Acelero Learning Center in Camden, NJ Harvesting System
  54. 54. Water Resources Program Downspout Planter Boxes at Davis School in Camden, NJ Harvesting System
  55. 55. Water Resources Program Stormwater Tree Pits/Street Trees Storage System Pre-manufactured concrete boxes or enhanced tree pits that contain a special soil mix and are planted with a tree or shrub. They filter stormwater runoff and provide limited storage capacity.
  56. 56. Water Resources Program Stormwater Tree Pits/Street Trees How it works: • Pervious concrete is installed to act as an additional storage system to increase the stormwater capacity treated by the system. • Systems with low infiltration rates due to soil composition are often designed with an underdrain system to discharge the water. • This system is often designed with conventional asphalt in areas of high traffic to prevent any damage to the system. Benefits: • Improved aesthetics • Healthier trees • Reduced heat island effect Storage System
  57. 57. Water Resources Program Stormwater Tree Pit/Street Trees
  58. 58. Water Resources Program Stormwater Tree Pits/Street Trees Storage System
  59. 59. Water Resources Program Pervious Pavements Storage System These surfaces include pervious concrete, porous asphalt, interlocking concrete pavers, and grid pavers. These materials allow water to quickly pass through the material into an underlying layered system of stone that holds the water, allowing it to infiltrate into the underlying uncompacted soil.
  60. 60. Water Resources Program Pervious Pavement How it works: • Underlying stone reservoir • Porous asphalt and pervious concrete are manufactured without "fine" materials to allow infiltration • Grass pavers are concrete interlocking blocks with open areas • Ideal application for porous pavement is to treat a low traffic or overflow parking area Benefits: • Manage stormwater runoff, minimize site disturbance, promote groundwater recharge • Low life cycle costs, alternative to costly traditional stormwater management methods • Contaminant removal as water moves through layers of system • Allows runoff to flow through the surface to an underlying storage layer Storage System
  61. 61. Water Resources Program Pervious Pavement Storage System
  62. 62. Water Resources Program Storage System Porous Pavement (Asphalt) at Yorkship School in Camden, NJ
  63. 63. Water Resources Program Storage System Porous Pavement (Concrete) at Wiggins School in Camden, NJ
  64. 64. Water Resources Program Green Infrastructure Manual for New Jersey
  65. 65. QUESTIONS? Jeremiah Bergstrom, LLA, ASLA Christopher C. Obropta, Ph.D., P.E.
  66. 66. Green Infrastructure Implementation
  67. 67. 68
  68. 68. 69Photo Credit: EPA
  69. 69. • A green and complete street is designed to mange a street’s stormwater runoff by using green infrastructure, and provide safe and accessible routes for all users. Photo: Portland, OR. Credit: Kevin Robert Perry
  70. 70. 49% 29% 17% 5% Land Area by Use in New York City Building & Parking Lots Streets Parks & Open Space Vacant Land 16% 17% 58% 6% 3% Land Area by Use for a Residential Development in Olympia, WA Roof Street Lawn Parking/ Driveways Sidewalk All Transportation Surface = 26% (Impervious Surface Reduction Study. Olympia, WA, 1995)(PlaNYC Sustainable Stormwater Management Plan, 2008)
  71. 71. Typical suburban street  Convey stormwater into buried conveyance systems  Capture surface runoff into a landscaped area. Complete and green suburban street Maplewood, MN (EPA)“Anywhere, USA” (EPA)
  72. 72. 73 • Bioretention • Bioswales • Permeable Pavements • Tree Boxes
  73. 73. 74 • Reduction of stormwater • Enhanced safety • Improved water quality • Reduce heat island effect • Community livability • Catalyst for redevelopment
  74. 74. 75 • New streets! • Look for opportunities Curb lane Tree Planting Excess Width
  75. 75. Current Complete Green Streets Image : Nebraska Avenue, Washington, DC. Credit: DDOT
  76. 76. Image : San Francisco, CA. Credit: EPA
  77. 77. Image : Kansas City, MO. Credit: BNIM Architects
  78. 78. Portland, OR (EPA) Washington, DC (EPA) Portland, OR (Kevin Robert Perry)
  79. 79. 80
  80. 80. Credit: Philadelphia Water Department
  81. 81. Credit: Philadelphia Water Department
  82. 82. 83 • Bioretention/Rain Gardens • Permeable Pavement • Cisterns • Infiltration Basins • Wetlands • Green Roofs • Urban Agriculture
  83. 83. 84
  84. 84. 85 Image: Constructed Wetland Credit: NJDEP Image: Submerged Gravel Wetland Credit: University of New Hampshire
  85. 85. 86 Credit: Wetland Studies and Solutions, Inc.
  86. 86. 87 Image: Rooftop Farm at Brooklyn Navy Yard Credit: Brooklyn Grange
  87. 87. 88
  88. 88. 89 • Reduction of stormwater • Improved water quality • Reduce heat island effect • Community livability • Catalyst for redevelopment
  89. 89. Regional Project Screening and Prioritization: Overview
  90. 90. • Ownership = Public • Distance to Storm Drain less than 500 ft • Some portion of the site has slope < 10 percent • Not located in river bed and in conveyance channels SMonaBlvd E 120th St MonaBlvd Los Angeles River Watershed Potential Centralized BMPs Mona Park NAD_1983_StatePlane_California_V_FIPS_0405_Feet Map produced 05-19-2011 - E. Moreno Legend Roads Stormwater Main Path for IngressEgress Area of Geotechnical Investigation 0 120 24060 Feet Flow Direction± GlenAvenue DrainSystem
  91. 91. • Green infrastructure on public parcels • Green infrastructure on private residential parcels • Green infrastructure resulting from redevelopment
  92. 92. 93
  93. 93. 94 GREEN STREET LID AND REGIONAL NONSTRUCTURAL Street-Scale Green Street Opportunity and Drainage Area Data
  94. 94. • General Maintenance: – Pruning – Mulching – Irrigating 97
  95. 95. • Intermediate Maintenance: – Remove clogging layer & top 3 inches of media to increase surface ponding volume 98
  96. 96. • Permeable Pavement Maintenance: – Street Sweeping – Weed removal 99
  98. 98. Aramingo Business Improvement District  The BID is a business association/shopping district  Economic Development & Job Creation  Sanitation and Security Services  BID covers an area of roughly 70 acres  Highly impervious  Highly constrained  Unmanaged stormwater  Unwelcoming environment
  99. 99. Developed Stormwater Mitigation Scenarios  GSI Master Planning Project  Identified opportunities and constraints through desktop assessment and field inspections  Interactive Design Sessions to evaluate and rank alternatives • Regional GSI systems • 2 Public ROW Scenarios • Smaller GSI systems on private property
  100. 100. Cost for Public GSI  Developed cost estimates for design scenarios  Scenario 1 - public only $7.71 per sf  Scenario 1 – public & private $7.62 per sf  Scenario 2 – public only $$5.62 per sf  Scenario 2 – public & private $5.16 per sf
  101. 101. American Street GSI Planning Study  14-Block Underdeveloped industrial corridor  Extended Study Area  Proposing GSI to stimulate transformation  Over-widened right-of-way and underdeveloped area creates opportunity
  102. 102. Design Approach  Manage 1” of public and private runoff  Multi-objective  Maintain multiple uses – pedestrian, truck traffic, bicycles, public space  Preserve industrial character  Enhance economic development potential  Maintain community connections – schools, green space, trails  Design low maintenance systems  Enhance safety
  103. 103. Opportunities and Constraints  Industrial – Commercial  Vacant – Small residential pockets  Pedestrian – Institutional – Residential  Property value gradient
  104. 104. American Street Design  Developed typical layouts and renderings  Curbside bioretention areas  Curbless design to allow direct sheet flow  Modular low-maintenance forebays  Slow-release irrigation trenches  Access ports for private customers
  105. 105. Major Strategies for Wider Study Area  Vacant Lots  Development/Redevelopment Partnerships  School/Park Retrofits  Sidewalk Bioretention
  106. 106. American Street Summary  Corridor only  55 greened acres  $300 - $400k per greened acre  Total Cost is $16.5 – 22M  Vacant Lots  43 Greened Acres  $100 - $300k per greened acre  Total Cost is $4.3 – 12.9M  Schools and Parks  36 Greened Acres  $100 - $300k per greened acre  Total Cost is $3.6 – 10.8M  Sidewalk Bioretention  70 Greened Acres  $300 - $400k per greened acre  Total Cost is $21 – 28M
  107. 107. Private Property Scenarios  Looked at 4 individual properties
  108. 108. ShopRite  5 acre site  97% Impervious  Existing Charges are $2,000 per month
  109. 109. ShopRite GSI Concept  Could manage 4.2 acres of IA  Project cost is $460,000 ($110k/acre or $2.51/sf)  SMIP Grant would cover $420,000  Cost to ShopRite is $40,000  Annual savings is $17,000  Break even is roughly 2 years  Could combine GSI with re-paving project to reduce project cost
  110. 110. Summary  GSI Improvements will provide city-wide benefits and benefits to local property owners  Stormwater charge reductions for business owners  Will attract more visitors to the corridor  Could explore public/private partnerships to reduce implementation costs  Recommend developing public/private cost sharing policy  Cost share  Long-term O&M  Financing options
  111. 111. Newman Paper Company – Philadelphia, PA
  112. 112. Newman Paper Company – Philadelphia, PA  40-acre paper recycling facility located on the North Delaware Riverfront  Uses large quantities of potable water in paper making process  72.7 million gallons per year  Total PWD Charges  $824,400 for water, sewer and stormwater
  113. 113. Newman Paper Company – Philadelphia, PA  Achieve reductions in both stormwater and potable water charges  Collect water from 265,000 sf (6.08 acres) of roof area into holding tanks  Capture of 4.8 million gallons per year or approximately 7% of process use  Process is a volume reducing practice due to evaporative losses  Captured stormwater consumed by process within 72 hours
  114. 114. Newman Paper – Summary  Project cost = $500,000 ($1.68/square foot)  Total stormwater credits = $26,500/year  Potable water charge savings = $15,600/year  SMIP grant of $370,000 ($1.39/square foot)  Newman contribution of $130,000 ($0.49/square foot)  Cash flow break even period of less than 5 years
  115. 115. Questions?
  116. 116. Text ‘njfuture’ to 55498 Green Infrastructure Survey for Developers and Design Professionals
  117. 117. Part II What can municipalities do to make green infrastructure happen?
  118. 118. The Path Forward: Tools and Options for Towns
  119. 119. Mainstreaming Green Infrastructure in Your Town Options and Tools:  Municipal Plans  Ordinances  Incentives  Processes
  120. 120. Plans • Green Infrastructure Plan – Includes projects that can become a mitigation plan. • Master Plan – Guiding Principles – Conservation element – Circulation element – Land Use element • Stormwater Plan • Capital Plan (roads, parks, muni facilities/DPW, schools) • Large-scale Land Use Plans – Redevelopment Plans – Affordable Housing Plan
  121. 121. Planning Principles • Protect Natural Resources – Trees – Open Space – Stream corridors • Promote Compact Development and Infill • Complete Streets / Green Streets • Efficient Parking • Green Infrastructure Stormwater Provisions
  122. 122. Ordinances Stormwater Ordinance  Require volume retention for 1.25”, 2- hour design storm  Allow waivers only if mitigation requirements are met (you need a mitigation plan w/ specific projects or a “fee in lieu”)  Emphasize the “green” in GI. Go for benefits beyond holding volume – e.g., street trees and pocket parks for economic and public health benefits.
  123. 123. Ordinances Land Use Ordinance Curbing Parking Streetscape Incentives – e.g., FAR, impervious cover reduction
  124. 124. Incentives • Signal: This is what we want. • Expedited review • Credits for Certain GI Practices – Green Roofs – Pervious Pavements – Trees – “Disconnected” Impervious • Other Incentives – Increased FAR
  125. 125. Walk the Talk: Processes • Encourage sketch plan and early meeting – informal • Offer green review, with clear guidance and support • Provide information about options, practices, greatest impact. • Checklists for all. Minimize guesswork.
  126. 126. Walk the Talk: Education and Training • Public Works – key players • Planning Board, EC, ZBA • All municipal and public projects maximize GI (schools, parks, streets, etc.) • Staff training • Municipal maintenance practices
  127. 127. Walk the Talk: Municipal Projects • Capital Plan – GI in every project • Achieve 100% retention and demonstrate various practices: – Infiltration (porous pavement – Capture and re-use (cisterns at muni facilities, use water for vehicle washing, irrigation, etc.) – Uptake by plants / Evapotranspiration • One high visibility GI project • Interpretive signage – show & tell
  128. 128. Make Life Easier: Public Education and Acceptance • Public Understanding of GI and Stormwater • Embrace of different landscape aesthetics (less lawn, more plants) • Benefits: – Urban heat island reduction / energy savings – Better air quality – Higher property values – Increased foot traffic in downtowns – Human health (physical and mental health) – Habitat – pollinators, songbirds, amphibians
  129. 129. Resources • Rutgers! – GI Guidance Manual for NJ – Presentation: “Ideas and Resources for Implementing GI In Your Community” – Fact sheets galore • EPA – Modeling Tools – Cost-Benefit Resources page – Green Infrastructure Wizard: “GI-Wiz” – Funding Sources • Delta Institute’s Green Infrastructure Toolkit for Property Owners and Municipalities: Green Infrastructure Designs: Scalable Solutions to Local Challenges
  130. 130. Thank you! Louise Wilson Green Infrastructure Manager 609-393-0008 ext. 109
  131. 131. Lessons Learned from Hoboken NewJerseySocietyofMunicipal Engineers Jennifer Gonzalez, Principal Planner City of Hoboken
  132. 132. Green Infrastructur eStrategic Plan GreenInfrastructureStrategicPlan
  133. 133. Rainwater Harvesting Code §136-2  Legalized use of rain barrels in 2011  Rain barrels were previously considered a nuisance  Any container maintained for the short-term collection of rainwater must have a properly fitting lid, be access-resistant to insects and rodents and must be maintained in good working order at all times and must be kept in a clean and sanitary way City Hall
  134. 134. Green Roofs Code §196-28  Incentivized use of green roofs in 2015  Green roofs are encouraged wherever possible (especially on roofs with surface area of ≥ 5,000 SF)  If a green roof is provided on at least 50% of the roof surface, the remainder may be utilized for a roof deck  Rooftop gardens are considered a green roof and may cover up to 90% of a roof's surface area 14th & Park Street
  135. 135. Site Plan Review Code §196-34  City requires the submission of a stormwater management plan with development applications, “setting forth the proposed method of controlling and managing stormwater on the site,” but:  Code does not specify methods for controlling and managing stormwater  Code does not require or encourage green infrastructure as a method  Planning Board routinely requests that applicants:  Increase the on-site stormwater detention beyond that required by NHSA (often successful in achieving double the required capacity )  Use green infrastructure for stormwater management (specifically green roofs and rain gardens)
  136. 136. Proposed Amendment toStormwater Management Plan Code §166  Current Stormwater Management Plan was adopted in 2007  Only applies to major development projects (≥ 1 acre disturbance) in the MS4 area  Purpose of the proposed amendment is to supplement the Stormwater Management Plan, tie in the Green Infrastructure Strategic Plan  Sets broad stormwater design and performance standards to address erosion control, groundwater recharge, stormwater retention, runoff quantity and runoff quality  Applies to new development, redevelopment and disturbance ≥3,000 SF across the entire City  Ensures that individual property owners are not limited in how they fulfill regulatory requirements  Fosters innovation
  137. 137. Proposed Amendment toStormwater Management Ordinance Code §166  Requires using nonstructural BMPs or green infrastructure to the maximum extent practicable before using structural BMPs  If applicant contends that nonstructural BMPs or green infrastructure are infeasible, applicant bears the burden of proving infeasibility  Requires an O&M plan for stormwater management BMPs  References, and supersedes, latest NHSATechnical Requirements for Stormwater Management:  Focuses on controlling runoff volume, not runoff rate  Different QuantityVolume method of calculation  Does not distinguish an application based on sanitary sewerage flows  Like NHSA, gives credit for removal of 25% impervious cover
  138. 138. Green Infrastructure inCapital Projects Southwest Park Northwest Park FirstStreet WashingtonStreet City Hall
  139. 139. Green Infrastructur eStrategic Plan RebuildbyDesign–HudsonRiver
  140. 140. Jennifer Gonzalez AICP, ENV SP Principal Planner City of Hoboken Thank you!
  141. 141. Raffle Winner!