Getting stormwater out of the sewer and into the ground

8/11/2019 Getting stormwater out of the sewer and into the ground

1/13

New York State Water

Resources Institute

andintotheground

EmilyVail

NYS Department of Environmental Conservation

u son ver s uary rogram

NYSDepartmentofEnvironmentalConservation

CornellUniversity

NYS

Water

Resources

Institute

RevitalizingHudsonRiverfronts | Peekskill,NY | Nov15,2012

PresentationOutline

Overflowingsewage

overflows(CSOs)

Separatedsewer

overflows(SSOs)

Impactofstormwater

Greeninfrastructure

Planning

Practices

Benefits

Whatyoucando Raingarden,PiermontLibrary


2/13

ImportanceofWatersheds

managementfromawatershed

perspective,becausestormwatertravelsto

waterbodies(andcanleadtoproblemsif

notmanagedwell)

The

land

and

water

that

drain

to

a

common

outlet

FromNEMO

Whatis

aCombined

Sewer

System?

USEPA


3/13

WhatisaSeparatedSewerSystem?

USEPA

CSOson

the

Hudson

AlbanyPoolAlbany,Rensselaer,

Troy,EastGreenbush,Bethlehem,

&Watervliet

Catskill

Hudson

Kingston

Poughkeepsie

Yonkers

Newburgh


4/13

Wetweatherleadstooverflows

Combinedsewerorse aratedsewer

OverflowingSewage

Impactspublichealth,waterrecreation

Degradeswaterquality

SanitaryseweroverflowinPoughkeepsie PumpstationinPiermont

Waterqualityproblems

Stormwater CarriesPollutants

Nutrients

Roadsalt

Oil/grease

Trash

Waterquantityproblems

Flooding

Erosion


5/13

WhatisGreenInfrastructure?

Differentapproachtostormwaternaturaland

eng neere sys ems a m m cna ure

Managerunoffby

maintainingorrestoring

naturalhydrology

allowstormwater to

infiltrateandbe

used

by

plants

Grayvs.

Green

Infrastructure


6/13

GreenInfrastructure

Regionalandlocalscales

Includeslowimpact

developmentprojects

Providesmultiplebenefits

Slowstheflowofrunoff

Removes ollutants

Keepswateroutofthe

stormsewer

system

NYSStormwater

Design

Manual

1.Planning

A.Preservingnatural

areas

B.Reducingpaved

Avoidstormwater

Reducestormwater

2.Greeninfrastructure

practicesManagestormwater


7/13

1.GreenInfrastructurePlanning

A.

Preservenatural

areas

reduce

disturbance,

clusterdevelopment

B. Reducepavedsurfaces driveways,parkinglots,

roads,etc.

TraditionalSubdivision ConservationSubdivision

DutchessCountyGreenwayGuide

2.Green

Infrastructure

Practices

Naturalfeaturesandengineeredpracticesthat

Treatstormwaterclosertowheretherainfalls

ExamplesonHREP

website:http://www.dec.ny.gov/

.


8/13

RainGardens&BioretentionAreas

Shallowdepression

of

soil

and

plants,

filters

runoff

and

slowsitsflow

AshfordPark,Ardsley Mt.PleasantHighwayGarage

GreenRoofs

Layersofsoilandvegetationonrooftopsthatcapturerunoff

SUNYOrange,Newburgh MaristCollege,Poughkeepsie


9/13

PorousPavement

Pavedsurfaces

that

allow

stormwater

to

infiltrate

NYSParks,Recreation&Historic

Preservation,Staatsburg

SojournerTruthUlsterLanding

CountyPark,Saugerties

RainBarrels

or

Cisterns

Captureandstorerooftoprunofftoreuseforwateringplants

andotheruses

GreenburghNatureCenterForsythNatureCenter,Kingston


10/13

StreamBufferRestoration

Improvesstream

health,

filters

and

slows

polluted

runoff,

manyotherbenefits

MacGregoryBrook,Peekskill PascackBrook,SpringValley

OtherGreen

Infrastructure

Practices

Vegetatedswales Streettrees

Stormwaterplanter busshelter,Ardsley Daylighting SawMillRiverinYonkers


11/13

BenefitsofGreenInfrastructure

Managestormwater

(quality

and

quantity)

Rechargegroundwater

ReduceCSOs,reducewastewatertreatmentcosts

Coolurbanareas energysavings

Providewildlifehabitat

Improveairquality

mprove uman ea

Increase

land

values Beautifyneighborhoods

GreenInfrastructure

Saves

Money

NewYorkCity(over20years)

vera cos :

Green$5.3billion

Gray$6.8billion

PergallonofCSOreduced:

Green~$0.45

~ .

Philadelphia(over40years)

Green$2,846.4millioninbenefits

Gray$122.0millioninbenefits


12/13

ImplementingGreenInfrastructure

Homeowners,watershed

rou s,nei hborhoods,

regionalplanners,businesses,

and

Municipalities

Planning

encourage,incentivize,or

require

Demonstrationsites SUNYOrange,Middletown

Whatcan

you

do?

Planforgreeninfrastructure

Incor orate into CSO Lon

TermControlPlans

Reviewcodes/ordinances

Visitlocalpractices

Builddemonstrationprojects

Restorestreambufferswith

TreesforTribs


13/13

New York State Water

Resources Institute

m y aWatershedOutreachSpecialist

[email protected]

(845)2563145

NYS Department of Environmental Conservation

HudsonRiverEstuaryProgram

NewYorkStateDepartmentofEnvironmentalConservation

Incooperation

with

Cornell

University

NYS

Water

Resources

Institute

Getting stormwater out of the sewer and into the ground

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