New York State Water                                                                                Resources Institute Us...
PresentaGon	  Outline	  •  Hudson	  River	  Estuary	     Program	  •  Combined	  sewer	     overflows	  (CSOs)	  •  Impact	...
Hudson	  River	  Estuary	  Program	  Core	  Mission	  •  Ensure	  clean	  water	  •  Protect	  and	  restore	  fish,	     w...
Importance	  of	  Watershed	  Thinking	  •  It’s	  important	  to	  think	  about	  stormwater	     management	  from	  a	...
What	  is	  a	  Combined	  Sewer	  System?	                                       Riverkeeper,	  2011	  
What	  is	  a	  Separated	  Sewer	  System?	                                         Riverkeeper,	  2011	  
CSOs	  on	  the	  Hudson	  Albany	  Pool	  -­‐	  Albany,	  Rensselaer,	  Troy,	  East	  Greenbush,	  Bethlehem,	  &	  Wate...
Overflowing	  Sewage•  Wet	  weather	  leads	  to	  overflows	  •  Degrades	  water	  quality	  •  Impacts	  public	  health...
Stormwater	  Carries	  Pollutants•  Most	  stream	  impairments	  in	     the	  region	  due	  to	  polluted	     runoff	  ...
Stormwater	  Carries	  Pollutants•  Water	  quality	  problems	      –  Sediment	  	      –  Nutrients	  	      –  Road	  ...
What	  is	  Green	  Infrastructure?	  •  Different	  approach	  to	  stormwater	  -­‐	  natural	  and	     engineered	  sys...
Gray	  vs.	  Green	  Infrastructure	  
Green	  Infrastructure	  •  Regional	  and	  local	  scales	  •  Includes	  “low	  impact	     development”	  projects	  •...
Green	  Infrastructure	  Requirements                                      	                   •  August	  2010	  -­‐	  Up...
NYS	  Stormwater	  Design	  Manual	                                          	  1.	  Planning	   A.	  Preserving	  natural...
Green	  Infrastructure	  Planning	  •  Preserve	  natural	  areas	  –	  reduce	  disturbance,	     conservaGon	  design	  ...
Green	  Infrastructure	  PracGces                                        	  •  Natural	  features	  and	  engineered	  pra...
Rain	  Gardens	  &	  BioretenGon	  Areas                                            	  •  Shallow	  depression	  of	  soil...
Green	  Roofs                                                	  •  Layers	  of	  soil	  and	  vegetaGon	  on	  rooiops	  t...
Porous	  Pavement                                              	  •  Paved	  surfaces	  that	  allow	  stormwater	  to	  i...
Rain	  Barrels	  or	  Cisterns                                                   	  •  Capture	  and	  store	  rooiop	  ru...
Stream	  Buffer	  RestoraGon	  •  VegetaGon	  along	  streams	  improves	  stream	  health,	  filters/   slows	  polluted	  ...
Other	  Green	  Infrastructure	  PracGces                                           	   •    DisconnecGng	  rooiop	  runoff...
Benefits	  of	  Green	  Infrastructure	  •    Manage	  stormwater	  (quality	  and	  quanGty)	  •    Recharge	  groundwater...
ImplemenGng	  Green	  Infrastructure	  •  Homeowners,	  watershed	     groups,	  neighborhoods,	     regional	  planners,	...
Green	  Infrastructure	  to	  MiGgate	  CSOs                                               	  •  New	  York	  City	  •  Ph...
Green	  Infrastructure	  Saves	  Money	  •  New	  York	  City	  (over	  20	  years)	      –  Overall	  cost:	  	         G...
What	  can	  you	  do?	             •  Plan	  for	  GI	             •  Incorporate	  into	  CSO	  Long	                Ter...
New York State Water                                                                                     Resources Institu...
Upcoming SlideShare
Loading in …5
×

"Green Infrastructure to Manage Combined Sewer Overflows and Flooding" by Emily Vail, NYSDEC Hudson River Estuary Program

1,585 views

Published on

"Green Infrastructure to Manage Combined Sewer Overflows and Flooding" presentation by Emily Vail of NYSDEC Hudson River Estuary Program from the 4/13/12 Columbia-Greene Revitalizing Hudson Riverfronts forum.

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,585
On SlideShare
0
From Embeds
0
Number of Embeds
322
Actions
Shares
0
Downloads
17
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

"Green Infrastructure to Manage Combined Sewer Overflows and Flooding" by Emily Vail, NYSDEC Hudson River Estuary Program

  1. 1. New York State Water Resources Institute Using  Green  Infrastructure  to  Manage  Combined  Sewer  Overflows  and  Flooding     Emily  Vail   Hudson  River  Estuary  Program   NYS  Department  of  Environmental  ConservaGon   Cornell  University  NYS  Water  Resources  InsGtute   NYS Department of Environmental Conservation
  2. 2. PresentaGon  Outline  •  Hudson  River  Estuary   Program  •  Combined  sewer   overflows  (CSOs)  •  Impact  of  stormwater    •  Green  infrastructure•  Municipal  programs  and   economic  benefits  
  3. 3. Hudson  River  Estuary  Program  Core  Mission  •  Ensure  clean  water  •  Protect  and  restore  fish,   wildlife,  and  their  habitats  •  Provide  water  recreaGon   and  river  access  •  Adapt  to  climate  change  •  Conserve  world-­‐famous   scenery     NYS Department of Environmental Conservation
  4. 4. Importance  of  Watershed  Thinking  •  It’s  important  to  think  about  stormwater   management  from  a  watershed   perspecGve,  because  stormwater  travels  to   waterbodies  (and  can  lead  to  problems  if   not  managed  well)   The  land  and  water  that   drain  to  a  common  outlet   From  NEMO  
  5. 5. What  is  a  Combined  Sewer  System?   Riverkeeper,  2011  
  6. 6. What  is  a  Separated  Sewer  System?   Riverkeeper,  2011  
  7. 7. CSOs  on  the  Hudson  Albany  Pool  -­‐  Albany,  Rensselaer,  Troy,  East  Greenbush,  Bethlehem,  &  Watervliet  Hudson  Catskill  Kingston  Poughkeepsie  Newburgh  Yonkers  
  8. 8. Overflowing  Sewage•  Wet  weather  leads  to  overflows  •  Degrades  water  quality  •  Impacts  public  health,  water  recreaGon     Sanitary  sewer  overflows  in  Poughkeepsie  
  9. 9. Stormwater  Carries  Pollutants•  Most  stream  impairments  in   the  region  due  to  polluted   runoff    •  TradiGonal  stormwater   management       –  Impervious    surface  -­‐>   storm  sewer  -­‐>  streams  •  Urban,  suburban,  and  rural   communiGes  
  10. 10. Stormwater  Carries  Pollutants•  Water  quality  problems   –  Sediment     –  Nutrients     –  Road  salt     –  Oil/grease   –  Trash    •   Water  quan3ty  problems   –  Flooding   –  Erosion
  11. 11. What  is  Green  Infrastructure?  •  Different  approach  to  stormwater  -­‐  natural  and   engineered  systems  that  mimic  nature  •  Manage  runoff  by   maintaining  or  restoring   natural  hydrology   –  allow  stormwater  to   infiltrate  and  be   used  by  plants  
  12. 12. Gray  vs.  Green  Infrastructure  
  13. 13. Green  Infrastructure  •  Regional  and  local  scales  •  Includes  “low  impact   development”  projects  •  Provides  mulGple  benefits   –  Slows  the  flow  of  runoff   –  Keeps  it  out  of  the  storm   sewer  system   –  Removes  pollutants  
  14. 14. Green  Infrastructure  Requirements   •  August  2010  -­‐  Updated  New   York  State  Stormwater   Design  Manual   •  Chapter  5  –  Green   Infrastructure   •  New  development  –  reduce   runoff  using  green   infrastructure  first  
  15. 15. NYS  Stormwater  Design  Manual    1.  Planning   A.  Preserving  natural   Avoid  stormwater   areas   B.  Reducing  impervious   Reduce  stormwater   surface  cover  2.  Green  infrastructure   Manage  stormwater   pracGces  
  16. 16. Green  Infrastructure  Planning  •  Preserve  natural  areas  –  reduce  disturbance,   conservaGon  design  •  Reduce  impervious  cover   TradiGonal  Subdivision              ConservaGon  Subdivision   Dutchess  County  Greenway  Guide  
  17. 17. Green  Infrastructure  PracGces  •  Natural  features  and  engineered  pracGces  that   infiltrate  runoff  on-­‐site   –  Treat  stormwater  closer  to  where  the  rain  falls    •  Examples  on  HREP   website:   hdp://www.dec.ny.gov/ lands/58930.html  
  18. 18. Rain  Gardens  &  BioretenGon  Areas  •  Shallow  depression  of  soil  and  plants,  filters  runoff  and   slows  its  flow   Ulster  County  Dept.  of  the   Vassar  College,  Poughkeepsie   Environment,  Kingston  
  19. 19. Green  Roofs  •  Layers  of  soil  and  vegetaGon  on  rooiops  that  capture  runoff   Rensselaer  County  Master     Marist  College,  Poughkeepsie   Gardeners  shed,  Wynantskill  
  20. 20. Porous  Pavement  •  Paved  surfaces  that  allow  stormwater  to  infiltrate    Sojourner  Truth  Ulster  Landing   NYS  Parks,  RecreaGon  &  Historic   County  Park,  SaugerGes   PreservaGon,  Staatsburg  
  21. 21. Rain  Barrels  or  Cisterns  •  Capture  and  store  rooiop  runoff  to  re-­‐use  for  watering  plants   and  other  uses   Childrens  Garden  at  Boyce  Park,   Wingdale   Greenburgh  Nature  Center,  Westchester  
  22. 22. Stream  Buffer  RestoraGon  •  VegetaGon  along  streams  improves  stream  health,  filters/ slows  polluted  runoff,  many  other  benefits   Wallkill  River,  Gardiner   Whaley  Lake  Stream,  Beekman  
  23. 23. Other  Green  Infrastructure  PracGces   •  DisconnecGng  rooiop  runoff   •  Stormwater  planters   •  Vegetated  swales   •  Tree  planGng/street  trees   •  Stream  daylighGng   NYS  Parks,  RecreaGon  &  Historic   Ardsley,  Westchester   PreservaGon,  Staatsburg  
  24. 24. Benefits  of  Green  Infrastructure  •  Manage  stormwater  (quality  and  quanGty)  •  Recharge  groundwater  •  Reduce  CSOs,  reduce  wastewater  treatment  costs  •  Cool  urban  areas  –  energy  savings  •  Provide  wildlife  habitat  •  Improve  air  quality  •  Improve  human  health  •  Increase  land  values  •  BeauGfy  neighborhoods  
  25. 25. ImplemenGng  Green  Infrastructure  •  Homeowners,  watershed   groups,  neighborhoods,   regional  planners,  businesses,   and  •  MunicipaliGes   –  Planning   –  Codes/ordinances  to   encourage,  incenGvize,  or   require   –  DemonstraGon  sites   SUNY  Orange,  Middletown  
  26. 26. Green  Infrastructure  to  MiGgate  CSOs  •  New  York  City  •  Philadelphia,  PA  •  Syracuse,  NY  •  Portland,  OR  •  Seadle,  WA  •  Milwaukee,  WI  •  Kansas  City,  MO      *  CiGes  highlighted  in  NRDC’s  Roo#ops  to  Rivers  II    
  27. 27. Green  Infrastructure  Saves  Money  •  New  York  City  (over  20  years)   –  Overall  cost:     Green  -­‐  $5.3  billion     Gray  -­‐  $6.8  billion   –  Per  gallon  of  CSO  reduced:     Green  -­‐  ~$0.45     Gray  -­‐  ~$0.62    •  Philadelphia  (over  40  years)   –  Green  -­‐  $2,846.4  million  in  benefits   –  Gray  -­‐  $122.0  million  in  benefits  
  28. 28. What  can  you  do?   •  Plan  for  GI   •  Incorporate  into  CSO  Long   Term  Control  Plans     •  Review  codes/ordinances  –   Beder  Site  Design  Worksheet   •  Visit  local  GI  pracGces   •  Submit  projects  for  website   •  Build  demo  projects   •  Restore  stream  buffers  with   Trees  for  Tribs  
  29. 29. New York State Water Resources Institute Emily  Vail   Watershed  Outreach  Specialist     eevail@gw.dec.state.ny.us     (845)  256-­‐3145       Hudson  River  Estuary  Program   New  York  State  Department  of  Environmental  ConservaGon  In  cooperaGon  with  Cornell  University  NYS  Water  Resources  InsGtute   NYS Department of Environmental Conservation

×