This program has been registered with LA CES by the New York Upstate This program has been registered with LA CES by the New York Upstate Chapter of

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1 This program has been registered with LA CES by the New York Upstate This program has been registered with LA CES by the New York Upstate Chapter of the American Society of Landscape Architects. Chapter of the American Society of Landscape Architects. As a Registered Provider with the LA CES System, credits earned on As a Registered Provider with the LA CES System, credits earned on completion of this program will be reported to LA CES. Certificates of completion of this program will be reported to LA CES. Certificates of Completion for non-asla members are available on request. Completion for non-asla members are available on request.

2 Stormwater and Watershed Resiliency X.X Credits Learning Objectives To understand NYSDEC Design Manual updates permit requirements and new stormwater resources available options for accomplishing better stormwater management and watershed resiliency using green infrastructure at a watershed scale prioritizing aquatic barriers for better sizing

3 New Runoff Reduction/Green Infrastructure Criteria

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5 Permit coverage required for projects that: - disturb 1 or more acres of land, some exceptions SF in NYC East of Hudson Watershed - disturb less than 1 acre that are part of larger common plan of development Construction General Permit (GP ) effective February 1, 2010 Owner must first develop SWPPP

6 Required SWPPP components (i.e. Basic or Full) based on type of project (See Appendix B in GP ) MS4 review of SWPPP required for some projects Submit completed Notice of Intent (NOI) and MS4 SWPPP Acceptance Form, if required Authorization to commence construction in 5 or 60 business days

7 Basic SWPPP erosion and sediment controls, required for all projects. Full SWPPP includes post-construction stormwater management controls (See Table 2 in Appendix B of GP ) Technical Standards - New York State Standards and Specifications for Erosion and Sediment Control (Dated 2005) - New York State Stormwater Management Design Manual ** (Updated 2010)

8 Ponds Wetlands Open Channels Filters Infiltration

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10 What is it? Green infrastructure approaches essentially infiltrate, evapotranspirate or reuse stormwater, with significant utilization of soils and vegetation rather than traditional hardscape collection, conveyance and storage structures

11 Chapter 1 - Intro to Manual Chapter 2 New Development Impacts Chapter 3 Stormwater Management Planning Chapter 4 Sizing Criteria Chapter 5 Green Infrastructure Practices Chapter 6 SM Practices Chapter 7 SM Practice Selection Chapter 8 SM Design Examples Chapter 9 Redevelopment Projects Chapter 10 Enhanced Phosphorus Standards

12 Runoff Reduction Volume (RRv) Objective - replicate pre-development hydrology conditions using Runoff Reduction/Green Infrastructure (GI) techniques Achieved by applying GI techniques to reduce 100% WQv (90% Event) Minimum RRv for sites with physical constraints

13 GI techniques - include both site planning and design component Site Planning - Preservation of natural resources - Reduction of impervious cover Design - Application of GI practices - Runoff reduction by area - Runoff reduction by volume - Standard SMP with RRv capacity

14 Preservation of undisturbed areas Preservation of buffers Reduction of Clearing and Grading Locating development in less sensitive areas Open space design Soil restoration

15 Design to traffic density Minimize roadway lengths & Widths Reduce Sidewalk width Cul-de-sac Parking area Footprint Shared driveway

16 Runoff Reduction/ Green Infrastructure Techniques Conservation of natural areas Sheetflow to riparian buffers or filter strips Vegetated open swale Tree planting / tree box Rooftop Runoff disconnection Stream daylighting Rain garden Green roof Stormwater planter Rain tank/cistern Permeable paving

17 Infiltration practices - 90% of WQv Bioretention - 80% of WQv (HSG A and B, no underdrain) - 40% of WQv (HSG C and D, with underdrain) Dry swale (open channel) - 40% of WQv (HSG A and B) - 20% of WQv (HSG C and D)

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19 Apply Preservation of Natural Resources and Reduction of Impervious Cover techniques SWPPP must include evaluation of GI planning techniques Includes municipal involvement, local ordinances, etc.

20 Determine WQv based on final site plan WQv = (P)(Rv)(A)/12 (Chapter 4) A = Contributing area (includes pervious and impervious areas)

21 Apply GI practices and Standard SMPs with RRv capacity - RRv > or = 100% WQv (Step 2) Projects with physical constraints - RRv (min) = (P)(*Rv)(Ai)/12 - *Rv = (I), I = 100% - Ai = (S)(Aic)

22 - S = HSG Specific Reduction Factor A = 0.55 B = 0.40 C = 0.30 D = Aic = total new impervious cover Requires justification -can not use lack of space or cost

23 Applies to sites meeting minimum RRv only ** Apply Standard SMPs - Chapter 6 Designed to address remaining WQv = WQv (Step 2) RRv (min)

24 Design practices to address quantity control requirements (Chapter 4) - Channel Protection Volume (Cpv) - Overbank Flood Control (10 yr) - Extreme Flood Control (100 yr)

25 Not required for Redevelopment project that meets Chapter 9 criteria (Section 9.3.1) Required for projects over karst geology, provided large infiltration basins are avoided Required for hotspot projects, provided noninfiltration practices are used

26 RR worksheets, design example, and instructions to assist designers with Runoff Reduction Criteria. Located on the following webpage:

27 Calculate WQv Required, RRv Provided and WQv Provided, if applicable Worksheets assist with the accounting of total RRv/WQv Provided Provide answers for a number of questions on the NOI

28 Runoff Reduction by By Area Worksheets

29 Reduction by Volume Worksheets

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31 Carol Lamb-Lafay David Gasper

32 Core Mission Ensure clean water Protect and restore fish, wildlife, and their habitats Provide water recreation and river access Adapt to climate change Conserve world-famous scenery

33 Presentation Outline Hudson River Estuary Program Applications of green infrastructure Benefits Poughkeepsie Case Study Watershed resiliency Pervious asphalt, Carmel

34 Schenectady Hudson River Estuary Watershed Poughkeepsie

35 Stormwater Carries Pollutants Most stream impairments in the Hudson Valley due to polluted runoff Documented for ~35% of streams Waterbody Inventory/ Priority Waterbodies List Storm drain

36 Importance of Watershed- Thinking Fall Kill Creek Watershed, Poughkeepsie

37 Fall Kill Creek Class C Impaired Impaired uses: Aquatic life Recreation Aesthetics (stressed) Sources of pollution: Urban/storm runoff Municipal/industrial (suspected)

38 Green Infrastructure Scales site, sewer-shed, municipality, watershed, region Provides multiple benefits Slows the flow of runoff Removes pollutants Keeps water out of the storm sewer system Adds vegetation to the landscape Roeliff Jansen Library, Hillsdale

39 Residential Green Infrastructure Pervious sidewalk Carmel Rain Barrel Sparkill Pervious Asphalt Poughkeepsie

40 Commercial Green Infrastructure Pervious Asphalt Poughkeepsie Pervious Pavers Landmark at Eastview, Town of Greenburgh Green Roof Newburgh

41 Municipal Green Infrastructure Rain Garden Mount Pleasant Highway Garage Rain Garden Town of Ulster Rain Garden/Pervious Pavers Greenwood Lake

42 Campus Green Infrastructure Rain Garden SUNY Orange, Middletown Green roof/cistern Marist College, Poughkeepsie Rain Garden Vassar College, Poughkeepsie

43 Natural Green Infrastructure Coxingkill Creek, High Falls

44 Protect or Restore Stream Buffers Vegetation along streams filters and slows polluted runoff, with many other benefits. SUNY Orange, Middletown Norrie Point, Staatsburg Casperkill Creek, Poughkeepsie

45 Benefits of Green Infrastructure Manage stormwater (quality and quantity) Recharge groundwater Reduce CSOs, reduce wastewater treatment costs Improve watershed resiliency Cool urban areas energy savings Provide wildlife habitat Improve air quality Improve human health Increase land values Beautify neighborhoods

46 Benefits at a Municipal Scale Philadelphia 40-year strategy to deal with CSOs: Gray - $122.0 million in benefits Green - $2.85 billion in benefits Save energy ($33.7 million) Avoid 196 fatalities from heat stress Increase residential property values (> $1.1 billion) Create > 15,000 jobs for local laborers

47 Family Partnership Center

48 Family Partnership Center Hurricane Irene

49 Family Partnership Center

50 Underwear Factory Existing Site edesign Dynamics Clearwater/Fall Kill Creek Watershed Committee Hudson River Housing Columbia University s Urban Landscape Lab LandMINE Studio Funded by New England Interstate Water Pollution Control Commission in partnership with NYS DEC Hudson River Estuary Program

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53 Neighborhood Source Assessment Clearwater/ Fall Kill Creek Watershed Committee Funded by Hudson River Estuary Program grant

54 Implementing Green Infrastructure Homeowners, watershed groups, neighborhoods, planners, businesses, colleges and universities, and Municipalities Planning Codes/ordinances to encourage, incentivize, or require Demonstration sites SUNY Orange, Middletown

55 Watershed Resiliency and Climate Change Resilient watershed = better able to deal with and recover from climate impacts Changes in precipitation Extreme weather Rising temperatures Reduce vulnerability of communities & ecosystems Flooding from the Wallkill River, New Paltz Hurricane Irene

56 Barriers to aquatic connectivity Impacts Cost of mitigation Biologically Important Barriers project Culvert Sizing project

57 Removing or mitigating aquatic barriers increases watershed resiliency Changes in precipitation Extreme weather Rising temperatures And reduces vulnerability of communities & ecosystems

58 Habitat Aquatic communities Sediment and debris Hydrology Water Quality Invasive species Recreation opportunities Historical/aesthetic value Projects are quickly accomplished and often gains can be shown quickly

59 Number of barriers 64% not fully passable, Great Lakes basin (Janushowski- Hartley et al. 2013) Over 60% not fully passable, Green Mountain National Forest (USFS 2013) 1 million culverts statewide (NYSDOT) 5700 dams in NYS Dam Inventory, on average 69 years old (Vedachalem and Riha, 2013) Cost of Mitigation Ecologically-based designs increase cost by 80%, and 300% for small culverts (as cited in draft TNC NYSDOT culvert prioritization project report) $77,582 median cost for dam removal (n=225, Biohabitats, 2010)

60 The Nature Conservancy and Hudson River Estuary Program Prioritized barriers watershed condition river network Natural Heritage Program Important Areas Field-verified

61 Field work identifies culverts Model current and future stream flow Prioritize culvert replacements for the town Town of Claverack

62 Address costs Work with municipalities to fund replacement of top priorities Town of Claverack

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68 New York State Water Resources Institute Aquatic barriers sit unneeded, unused, undermaintained a growing ecological and fiscal liability National Forest System Legacy Roads and Trails program 2013 USFS Legacy Roads and Trails program 2013

69 Improving Watershed Resiliency Plan for climate adaptation Integrate water resource protection into municipal plans Move infrastructure out of floodplains Create partnerships, work intermunicipally and with watershed groups

70 Improving Watershed Resiliency Replace undersized road crossings Manage runoff with green infrastructure Build or visit demonstration sites Protect forests, wetlands, floodplains Restore vegetation along streams

71 Green Infrastructure Examples in the Hudson Valley

72 Review Local Codes and Codes and Ordinances Worksheet for New York State Town of Wappinger and Town of Clinton case studies Ordinances lands/42053.html

73 Plant Trees for Tribs html

74 Andrew Meyer Shoreline Conservation Specialist Emily Vail Watershed Outreach Specialist (845) New York State Water Resources Institute Carol Lamb-Lafay David Gasper Hudson River Estuary Program New York State Department of Environmental Conservation In cooperation with Cornell University NYS Water Resources Institute NYSDEC Division of Water Stormwater Section

75 This program has been registered with LA CES by the New York Upstate This program has been registered with LA CES by the New York Upstate Chapter of the American Society of Landscape Architects. Chapter of the American Society of Landscape Architects. As a Registered Provider with the LA CES System, credits earned on As a Registered Provider with the LA CES System, credits earned on completion of this program will be reported to LA CES. Certificates of completion of this program will be reported to LA CES. Certificates of Completion for non-asla members are available on request. Completion for non-asla members are available on request.