Chapter 16 DATA SECURITY, PRIVACY AND DATA MINING Cios / Pedrycz / Swiniarski / Kurgan.
Webinar AgendaWebinar Agenda...Presenters KATE KURGAN,,g g Senior Program Manager for Environment...
Transcript of Webinar AgendaWebinar Agenda...Presenters KATE KURGAN,,g g Senior Program Manager for Environment...
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Webinar AgendaWebinar Agenda
Welcome/Introduction of PresentersWelcome/Introduction of Presenters AASHTO Resources for Stormwater Practitioners National Meeting Overview National Meeting Overview U.S. EPA Update Best Practices and Post Meeting White Paper Best Practices and Post-Meeting White Paper Question/Answer Session
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PresentersPresenters
KATE KURGAN, Senior Program Manager for Environment , g gAmerican Association of State Highway and Transportation Officials
SCOTT MCGOWEN, P.E., Chief Environmental Engineer California Department of Transportation
RACHEL HERBERT, Physical Scientist USEPA Headquarters, Water Permits Division
ANNA LANTIN, P.E., Vice President RBF Consulting a Company of Michael Baker CorporationRBF Consulting, a Company of Michael Baker Corporation
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AASHTO UpdateAASHTO Update
Presented byKate Kurgan
Senior Program Manager for EnvironmentSenior Program Manager for Environment
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AASHTO WebinarsAASHTO Webinars
Construction and Development EffluentConstruction and Development Effluent Guidelines, December 2009
Construction Effluent Guidelines: NumericalConstruction Effluent Guidelines: Numerical Limits are Coming, April 2011
Efficient and Innovative Strategies for Achieving Efficient and Innovative Strategies for Achieving Better Environmental Performance, June 2011
Post Construction BMP Selection – Runoff Post Construction BMP Selection – Runoff Management to Meet Quantitative Pollution Limits, June 2012s, u 0
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Stormwater References for DOTsStormwater References for DOTs Community of Practice Reports Construction Stormwater Management Effluent Limitations Guidelines
T t l M i D il L d (TMDL ) Total Maximum Daily Loads (TMDLs) Post Construction BMPs EPA Post-Construction Stormwater Rulemaking EPA Post-Construction Stormwater Rulemaking Source Control Operation and Maintenance BMPsOperation and Maintenance BMPs Program Effectiveness Assessment Watershed Approach (in progress)
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Stormwater Practitioner’s H db kHandbook
Development and implementation of a t t tstormwater management program
Developing a Stormwater Management Plan (SWMP)( )
Construction site stormwater compliance
Integrating Best Management Practices (BMPs) into DOT project delivery
Roadway maintenance stormwater Roadway maintenance stormwater practices and NPDES compliance
TMDLs and other special requirements
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AASHTO ContactAASHTO Contact
Kate KurganKate KurganSenior Program Manager for Environment
E-mail: [email protected] @ g
Center Website:Center Website: http://environment.transportation.org
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National Meeting OverviewNational Meeting Overview
Presented by Scott McGowen PEScott McGowen, PE
Caltrans Chief Environmental Engineer
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Meeting FactsMeeting Facts
77 Attendees representing 44 of 52 DOTs, FHWA, AASHTO, p g , , ,Regulators
50% attended for the first time 75% with at least 5 years of stormwater experience 65% is from a DOT with less than 5 program staff members 66% from Environmental Division (26% from Engineering) 66% from Environmental Division (26% from Engineering) Attendees background includes Technical, Policy, Program
Managementg
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Key TopicsKey Topics
FHWA and AASHTO Update Stormwater Activitiesp NPDES Permitting, Trends and Streamlining DOT Audit Process and How to Prepare Asset Management Programs Contemporary Post-Construction Stormwater Control
O DOT Peer Exchange Construction Stormwater Management The Watershed Approach The Watershed Approach
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STORM WATER STRATEGY – Risk Management & Cost Control
NPDES (MS4 and CGP)
EPA Order for Compliance
TMDL (Impaired Waters)Current Mandate Legal Activities
Immediate Future Mandate
MAINTENANCE
NEW STATEWIDE PERMITTMDL/ASBS (60% OF STATE)HYDROMODIFICATION/STREAM
CONSTRUCTIONCGP IMPLEMENTATIONINCREASED CAPITAL PROJECT
Legal Activities
NEW & ENHANCEDMAINTENANCE AND
OPERATIONS PRACTICESSOLID WASTE MGMT
STATEWIDE TRASH
STABILITYSTORMWATER MONITORINGBMP RETROFITMAINTENANCE COMPLIANCECONSTRUCTION COMPLIANCE
INCREASED CAPITAL PROJECT COSTSENFORCEMENT RESPONSE
OTHER COMPLIANCE NEEDSPOLLUTANT TRADING,
STATEWIDE TRASH POLICY/TMDL
LEGAL ACTIVITIESEPA AUDITS AND ENFORCEMENTS
COOPERATIVE FUNDINGWATERSHED PARTNERSHIPS
POLICIES/DIRECTIVES, TRAINING, DISTRICT IMPLEMENTATION, PUBLIC EDUCATION
FUTURE BMP & MAINTENANCE & OPERATIONS
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EPA UpdateEPA Update
EPA’s Construction General Permit National Stormwater RuleNational Stormwater Rule
Considerations Information Collection Information Collection
Request Survey
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DOT Stormwater Audit by USEPADOT Stormwater Audit by USEPA DOT Audits – Current State of the Nation Focused on field practices Construction Maintenance Enforcement
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Asset Management
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Contemporary Treatment BMPs(appropriate for the highway environment) Open Graded Friction Coarse (OGFC)p ( ) Low Impact Development Bioretention Bioretention Vegetated Treatment
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Focused Construction Program(erosion and sediment control for highway environment)
Phased plan to protect receiving waters Phased plan to protect receiving waters Tracking and inspection
Fi l t bili ti Final stabilization
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Watershed Approach (for stormwater management)
EPA’s guidance to participate in watershed EPAs guidance to participate in watershed planning with a diverse group of stakeholdersstakeholders Advantages and Disadvantages
Alt ti Alternatives Stormwater in-lieu fee program Offsite Mitigation (shared solution with locals)
Applicability to TMDLs (Impaired waters pp y ( pprogram)
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Be PreparedBe Prepared
Learn from other DOT practices Learn from other DOT practices Evaluate current practices
U d t d th i k Understand the risks Awareness of upcoming regulation…
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USEPA Stormwater UpdateUSEPA Stormwater Update
Rachel HerbertRachel HerbertEPA/Offi f W tEPA/Offi f W tEPA/Office of WaterEPA/Office of Water
Stormwater Permitting TeamStormwater Permitting Team 21
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Stormwater: A Growing Water Quality ConcernSto ate G o g ate Qua ty Co ce
3. Which can lead to d d i
1. Increased 2. Enter the stream degradation and increased pollutants entering waterbodies
amounts of stormwater and pollutants…
municipal separate storm sewer system (MS4) or is directly discharged to adischarged to a nearby waterbody…
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Key Elements Considered for the P d St t R lProposed Stormwater Rule
1 Establish performance standards for discharges from1. Establish performance standards for discharges from newly developed and redeveloped sites.
2 Require certain regulated MS4s to develop a program to2. Require certain regulated MS4s to develop a program to address discharges from existing sites (retrofits).
3 Extend protection of MS4 Program3. Extend protection of MS4 Program.
4. Consider separate, tailored requirements for transportation MS4stransportation MS4s.
5. Designating Government-Owned Maintenance Yards as Industrial Sources.Industrial Sources.
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Performance StandardsWh Wh t Wh Wh Wh HWhy · What · Who · Where · When · How
Why and WhatWhy and What Considering a retention-based performance standard to
reduce pollutants resulting from the increased volume and velocity of stormwater discharges at newly developed and redeveloped sites.
The volume of stormwater retained is a surrogate for the pollutants contained in the discharge.
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Performance StandardsWh Wh t Wh Wh Wh HWhy · What · Who · Where · When · How
WhoWho All types of construction projects
including residential, commercial, industrial, and institutional.,
Owner of a construction project which meets the site size threshold.
Responsibility for proper operation p y p p pand maintenance transfers to new owners of a property. District of Columbia Metro Area Urbanized
Area Map US Census 2000 (red hatched)
Where The standard could be applied to
newly developed and redeveloped
Applying the standard nationwide would create a level playing field for
developers among municipalities and protect downstream
sites nationwide or only those sites discharging to regulated MS4s.
and protect downstream communities from upstream
development.25
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Performance StandardsWh Wh t Wh Wh Wh HWhy · What · Who · Where · When · How
FileNotice of
Begin Site FileNotice ofNotice of
IntentDesign Notice of
Termination
Active Construction
Project Timeline
Standard applies to discharges from the site
WhenWould apply to stormwater discharges after construction is complete.
j
HowCost effective ways to meet the standard
Incorporate controls in the site design by preserving vegetation, reducing impervious cover
Integrate green infrastructure practices into landscape or other areas hi h ld th ifi d l i th t d dwhich would manage the specified volume in the standard.
Options for alternative solutions (e.g. off-site mitigation, payment-in-lieu)26
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Performance StandardsWh Wh t Wh Wh Wh HWhy · What · Who · Where · When · How
Discharges from Redeveloped SitesDischarges from Redeveloped Sites
Recommend lower standard for d lredevelopment Recognize site constraints To encourage redevelopment toTo encourage redevelopment to
revitalize urban communities Considering additional incentives
for smart growth and brownfieldsfor smart growth and brownfields development
LA Infiltration Planters. Photo courtesy of Bill DePoto.
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Extending the Protection of the MS4 Programg g
Helps ensure standards are Helps ensure standards are properly implemented which could reduce need for expensive retrofits later
Builds on existing framework ofBuilds on existing framework of local oversight
Implements 6 minimum Implements 6 minimum measures which help prevent contamination
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Extending the Protection of the MS4 Programg g
OptionsOptions1. Urbanized clusters as defined by Census (density of
1,000 people/mi2), p p / )Reaches unregulated densely populated areas Could specify a population threshold
2. Small watershed (HUC 12) which overlap with urbanized areaarea Reaches areas of high growth Promotes watershed approachesPromotes watershed approaches Could specify a population threshold
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Extending the Protection of the MS4 Program t P i i l A t i l R dto Principal Arterial Roads
Federal Highway Administration Federal Highway Administration Category: roads which connect urbanized areas with more than 50 000 people and urban areas50,000 people and urban areas
Rulemaking could extend the MS4 gprogram to all principal arterials or a subset of principal arterials
12 states currently apply the MS4 program to all state-owned roads
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Separate, Tailored Requirements f T t ti MS4for Transportation MS4s
Examining the activities that DOTs perform
R i i th ICR d t d th d t Reviewing the ICR data and other documents
Considering tailoring requirements for transportation Considering tailoring requirements for transportation MS4s
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Municipal Program to Manage Discharges f E i ti Sit (R t fit )from Existing Sites (Retrofits)
Address existing degradation from existing sites and help restore urban waters
P d h ld i t i l t d i i liti Proposed approach could require certain regulated municipalities to: Identify long term goals, highest priority projects and milestones Integrate green infrastructure into projects cities are already doing Integrate green infrastructure into projects cities are already doing Implement through an iterative approach as part of stormwater management
plan
Could Apply to: Regulated municipally-owned MS4s serving populations ≥ 100,000 Regulated municipally-owned MS4s serving populations ≥ 50,000
Could allow exemptions where municipally owned MS4 discharges do not Could allow exemptions where municipally-owned MS4 discharges do not cause or contribute to violations of water quality standards
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Designating Government Owned M i t Y d I d t i l SMaintenance Yards as Industrial Sources
V hi l d i t i t i Vehicle and equipment maintenance is a regulated industrial activity, except for municipal maintenance yards Pollutants of concern:
Often have public administration SIC codes or some other non-regulated code not representative of their industrial
• organic and inorganic chemicals;
• fuels, such as coal d ilnot representative of their industrial
natureand oil;
• paints; • metals; • solvents; and 1995 Storm Water Discharges Potentially
Addressed by Phase II of the NPDES Storm Water Program, Report to Congress identified government
• solvents; and • oil and grease.
Congress identified government maintenance yards as one of the major unregulated sources 33
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Rulemaking Scheduleu e a g Sc edu e
Proposal: June 2013 Final Action: December 2014Final Action: December 2014
www.epa.gov/npdes/stormwater/rulemaking
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Information Collection Request (ICR) PProcess
Part A: Technical Information
Part B: Financial Information
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Permit Coveragee t Co e age
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Number of Permitsu be o e ts
Permit 3 +
Permit 1Permit 2Permit 1
Permit 1≈ 57%
≈ 26%
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Permit TypesPermit Types
50%
60%
20%
30%
40%
0%
10%
20%
Phase II General Permit
Phase I Individual Permit
Phase II Individual Permit
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Permit TermsPermit Terms
50%
60%
30%
40%
50%
10%
20%
30%
0%
10%
First Second Third
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Administratively Extended Permitsd st at e y te ded e ts
58 months
5 th5 months
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Administrative Approachd st at e pp oac
Regional/Division
Regional/Division
HQ
Regional/Division
Regional/Division g /
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Type of Roads Coveredype o oads Co e ed
Types of Roads Owned Operated or Maintained by
90100
Types of Roads Owned, Operated, or Maintained by State DOTs
50607080
20304050
010
State Level County Level Municipal Private roads All roadsLevel
Own Operate Maintain42
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Locations Covered Under Permitocat o s Co e ed U de e t
Rest Area
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Shared ResponsibilitiesS a ed espo s b t es
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Public Education & Outreachub c ducat o & Out eac
Staff and contractors
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Public Involvementub c o e e t
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Illicit Discharge Detection & Eliminationc t sc a ge etect o & at o
S ff i i
Outfall database Staff training,
≈ 71%
database, ≈ 62%
Public reporting, ≈ 52%
Outfall paper tracking,
55%
Storm drain mapping
≈ 55%
mapping, ≈ 57%
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ConstructionCo st uct o
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Post-Constructionost Co st uct o
> 50% < 50%Post- Const. NameMain StreetSecond StreetI-95 Rest Stop..
ContractorContractor
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New Development,R d l t d M i tRedevelopment, and Maintenance
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Post-Construction Controlsost Co st uct o Co t o s
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Post-Construction: Operation & Maintenanceost Co st uct o Ope at o & a te a ce
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Post-Construction: Trackingost Co st uct o ac g
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Post-Construction Standardsost Co st uct o Sta da ds
State DOT (Self Imposed)State DOT (Self-Imposed)
MS4 Permit
Construction PermitConstruction Permit
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Alternative Program to Comply with P f /D i St d dPerformance/Design Standards
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Pollution Prevention/Good HousekeepingInventoryField staff
training
es
Inspection
Act
iviti
eA
90%80%70% 56
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Retrofitset o ts
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Capital Improvement PlansCap ta p o e e t a s
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Showing ProgressS o g og ess
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Thank You!
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National MeetingBest Practices Overview
Presented by Anna Lantin, PEAnna Lantin, PERBF Consulting
A company of Michael Baker Corporationp y p
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Best Practices TopicsBest Practices Topics
Stormwater Program Audits Stormwater Program Audits Asset Management
C t P t C t ti C t l Contemporary Post-Construction Controls Effective Focused Construction Program Watershed Approach
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Post-Meeting White PaperPost Meeting White Paper
http://environment.transportation.org 63
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Stormwater Program AuditsStormwater Program Audits
Definition Definition EPA or state agencies with CWA authority
delegated by the EPA may conduct audits todelegated by the EPA may conduct audits to assess compliance with an NPDES permit - CWA Sections 308(a), 309(a)(3), (a)(4), and (a)(5)(A), as amended, 33 United States Code (U.S.C.) §§ 13 18(a) and 13 19(a)(3), (a)(4), and (a)(5)(A).Code (U.S.C.) §§ 13 18(a) and 13 19(a)(3), (a)(4), and (a)(5)(A).
Importance to State DOTs DOT stormwater programs have been subject DOT stormwater programs have been subject
to audits by EPA and the delegated state regulatory agency. g y g y
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MS4 Audits ‐ Current State of the Nation
Full MS4 Audit
Notice of Upcoming Audit
DOT Audit Process and How to Prepare
10Washington
2012
How to Prepare
10
82
1Minnesota2010(Final
Report)New York June 2012
8
37
5Pennsylvania
2010Nevada2011
Delaware 2006
RhodeIsland2011
Colorado 2012 / 2013 Virginia
2012/2013
Ohio2012/2013
4
9Arizona
2010(Final
Report)
(Final Report)
2012/2013
69
Hawaii2003
(Final Report)
p )
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MS4 Audit Process (Typical)MS4 Audit Process (Typical)Notice of Audit
Inform Management and K St ff (HQ/Di t i t )
Headquarters Audit
District Audit Office
Key Staff (HQ/Districts) Prepare for Logistics Provide DocumentsDistrict Audit Office
Field
C t ti Sit
Provide Documents Provide list of
Construction ProjectsConstruction Sites
Maintenance Facilities Provide list of
Maintenance/Facilities A Q tiDebrief
Audit Report
Answer Questions
Administrative Order?
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Key Findings (C lif i d A i A dit )(California and Arizona Audits)
Improve program managementImprove program management Improve training, tracking, and inspections Implement Facility Pollution Prevention Plans Implement Facility Pollution Prevention Plans Develop a robust illegal connection/illicit discharge
(IC/ID) or Illicit Discharge Detection Elimination(IC/ID) or Illicit Discharge Detection Elimination (IDDE) program.
Inventory of all construction sites and improve theInventory of all construction sites and improve the training program.
Inspection, tracking of post-construction BMPsp , g p
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Future Implications DOTs must be ready to respond to these
changes by:g y Improve program record keeping Improving program effectiveness assessment;p o g p og a e ect e ess assess e t; Enhancing stormwater program asset
management;g ; Shifting emphasis to high-performing BMPs; Targeting high-priority problems;Targeting high priority problems; Emphasizing staff training
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Considerations for Moving Forward
Conduct self-audits
D l i t l i ti d Develop an internal inspection and enforcement program, and procedures to
l t / l li blescalate/resolve compliance problems
Improve organizational structure to p gimprove program compliance
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Asset ManagementAsset Management
Definition Definition Inventory, record keeping, maintenance Evaluation of the condition and remaining Evaluation of the condition and remaining
service life of stormwater management systems constructed to mitigate the impactssystems constructed to mitigate the impacts of stormwater runoff.
Importance to State DOTsImportance to State DOTs NPDES compliance Resource planning of maintenance of Resource planning of maintenance of
stormwater controls (BMPs)70
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Asset ManagementLinking Programs, Improving Efficiency (WSDOT)
Highway Features “Highway Activity Tracking System”
Database (Maintenance)Database (central hub)
IDDE
Roadside Features Inventory Program Database (Safety)
Database
Stormwater Features
MaintenanceBMP inspection and maintenanceFeatures
InventoryDatabase
UtilitiesIllicit dischargeIllegal connection
Design
UICD t b
Stormwater Stormwater Monitoring Database
DesignScoping Safety
CorporateDatabase Planning
Asset management71
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Inventory of Stormwater OutfallsDi h P i t S b t (WSDOT)Discharge Point Sub-types (WSDOT)
Five sub-types:Five sub types:1. Surface water – Stormwater “outfall”2 Managed system MS4 or private2. Managed system – MS4 or private
interconnections3 Incoming – Potential illicit discharges or3. Incoming – Potential illicit discharges or
illegal connections4. Subsurface – Stormwater4. Subsurface Stormwater
outfall/groundwater/dry well5. Land surface – Other discharges5. Land surface Other discharges
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Outfall Inventory Process (WSDOT)Outfall Inventory Process (WSDOT)
Outfalls are documented using two main processes:1. Office-based:
Turning non digital data into digital data such as Turning non-digital data into digital data such as geo-referenced as-builts
Converting non-GIS based digital data (e g MicroStation dgn files) into GIS format(e.g., MicroStation .dgn files) into GIS format
2. Field-based: Using mapping grade GPS units to collect new
stormwater outfall features Using data supplied from the office as a base to confirm and
update, as needed, stormwater outfall locations.
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Example: As-built Plan Digitizing (WSDOT)
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Georeferenced as-built
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Add Stormwater Features
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Field-Verify (WSDOT)
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Field-based Data Collection (WDOT)Field based Data Collection (WDOT)
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Storm Water Inspection Tool (CDOT)
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If maintenance or replacement of the
structure is required, a q ,work order is
automatically generated and sent to the
i t i tappropriate maintenance supervisor and the work is scheduled. When the work is completed, information
on costs, labor, and materials is then included as attribute data for that structure for later analysisstructure for later analysis.
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Field inspectors are connected to the GIS database “live” during a site inspection with a Notebook. The MapView 2 application allows them to locate via GPS the structure to be inspected view past inspection resultslocate via GPS the structure to be inspected, view past inspection results
including photo documentation, directly input current inspection results and photo documentation “real time.”
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SWIT Performance (CDOT)SWIT Performance (CDOT)
Average time on site reduced from 15–18 Average time on site reduced from 15 18 minutes to 6–8 minutes Direct input of data into GIS Direct input of data into GIS Post processing of data minimized Easily adapted for use with annual
Permanent BMP inspections
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NCDOT Asset Management ProgramNCDOT Asset Management Program
Conduct comprehensive statewide surveys Conduct comprehensive statewide surveys1. Maintenance Condition Survey2 Bridge Condition Survey2. Bridge Condition Survey3. Pavement Condition Survey
E t bli h P f St d d Establish Performance Standards Outcomes with Targets: Bridge deck ratings in
d diti P t ki i iblgood condition; Pavement markings visible
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NCDOT Asset Management Program
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Devices and Locations (NCDOT)Devices and Locations (NCDOT)Types Locations Bioretention Basin Filtration Basin Infiltration Basin
Existing rights-of-way
Interchanges and ramps
Bridges Rest areas Industrial facilities Weigh stations
Dry Detention Basin Wet Detention Basin Hazardous Spill Basin
g
Hazardous Spill Basin Stormwater Wetland Swale
L l S d Level Spreader
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Performance Measures L l f S i (LOS) R ki (NCDOT)Level of Service (LOS) Rankings (NCDOT)
Development of Performance Measures and Targets Level of Service Ratings
LOS A – Some aging and wear but no major deficiencies
LOS B – Minor structural deterioration and maintenance needs identified
LOS C – Moderate structural deterioration and maintenance needs identified but is still functioning properly
LOS D Serious deterioration in a least one structural item and major LOS D – Serious deterioration in a least one structural item and major maintenance needs identified. Function is inadequate
LOS F – Device has general or complete failure
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Why Level of Service? (NCDOT)
LOS Rating Value ?
Why Level of Service? (NCDOT)
g Compliance Asset Management Data Driven Decisions Resource Prioritization
A t bilit Accountability
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Future Implications and C id ti f M i F dConsiderations for Moving Forward
Create an asset management programCreate an asset management program Integrating asset management with NPDES
program requirementsprogram requirements Resource estimation and budget forecasting
based on maintenance triggers and frequencies gg qof BMP maintenance.
DOTs may also apply for Federal funding or assistance for BMP maintenance; a well designed asset management program can assist i thiin this area
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Contemporary Post-Construction St t T t t PStormwater Treatment Program
Pavement Pavement Open Graded Friction Course (OGFC), Porous
Pavement ReservoirPavement, Reservoir
Low Impact Development Vegetated Treatment and Volume Retention Vegetated Treatment and Volume Retention
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Porous Pavement?(M i DOT)(Maine DOT)
Proven technologyProven technology Over 20 years worldwide Applications in colder climatespp
Porous Pavements achieve three WQ criteria Detains Peak Stormwater Flow Rate Pollutant Filtration Temperature Mitigation
Other advantages Reduced ambient tire noise
ff Reduced traffic spray during rain events Reduced road glare when wet 90
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MaineDOT – Design Cross Section
3”OGFC
6”ATPB
R i15”
Reservoir Stone
6 – 12”FilterMaterial
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Asphalt Treatment Pavement Base (ATPB) Pl t (M i DOT)(ATPB) Placement (Maine DOT)
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Open Graded Friction Course (OGFC) Pl t(OGFC) Placement
Southbound Lanes – August 27, 2009
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Perceived Risks (Maine DOT Experience)Perceived Risks (Maine DOT Experience) Surface Pavement Raveling Two years in and no signs of this
Surface Pavement Rutting Not an issue to date, even at turn lanes
Pavement clogging from off-site sand trackingR l i k thi i h k Regular sweeping keeps this in check
Flash freezing of OGFCB th UNH d M i DOT h id Both UNH and MaineDOT have seen no evidence
No water in system, so no freezing
Sub base freezing during winter Sub base freezing during winter Again, no issues with this
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Maintenance (Maine DOT Experience)Maintenance (Maine DOT Experience) No Sand application, Salt only Regenerative Air Vacuuming in all seasons
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Low Impact Development (LID)Low Impact Development (LID)
Goal of LID – “To reduce runoff and to Goal of LID To reduce runoff and to mimic a site’s predevelopment hydrology by minimizing disturbed areas andby minimizing disturbed areas and impervious cover and then infiltrating, filtering storing evaporating andfiltering, storing, evaporating, and detaining stormwater runoff close to its source ” (EPA 901-F-09-003 April 2009)source. (EPA 901 F 09 003, April 2009)
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Minimize Concentrated Discharges
Runoff must sheet flow off the roadway, no curb and gutter.
Agricultural landsLegacy Nature Preserve Agricultural landsLegacy Nature Preserve
Legacy Parkway Looking North (Utah DOT) 97
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Vegetated Filter Strips(Utah DOT experience)(Utah DOT experience)
Allows stormwater to Infiltrate, reducing runoff volumes, , g ,velocities and erosion.
Captures and filters a major portion of TSS and i t d t l t i t tassociated metals, nutrients, etc.
Recommended by the State Regulators
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Stormwater Detention/Retention(Ut h DOT)(Utah DOT)
Pipe inlet 2 Alkali Playafeet above toe of fill
Alkali Playa
Retention Areas & WetlandsWetlands
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Considerations for Moving Forward Reduce capital, O&M costs of post-construction BMPs
Measures that operate passively with minimum Measures that operate passively with minimum maintenance over their design life.
Use existing highway and drainage infrastructure to Use existing highway and drainage infrastructure to meet the rulemaking requirements.
Update guidance to incorporate measures and Update guidance to incorporate measures and approaches for treatment BMPs that can be easily incorporated into existing infrastructure
Pursue research on practices that can be easily incorporated into existing infrastructure.
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Effective Focused Construction P
Construction contract administration to ensure
ProgramConstruction contract administration to ensure contractor compliance
Inspection tracking monitoring andInspection, tracking, monitoring, and enforcement of field implementation of erosion and sediment control measures; and;
Improvements on BMP practices appropriate for site runoff controls during highway constructiong g y
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Field Inspection Tool(N b k DOR)(Nebraska DOR)
Inspection program installed on user machines that p p gallows them to record inspections and track corrective actions.U F i dl I t f User Friendly Interface. Notes and Guidance Sync Reminders Glowing buttons notify inspectors of pending corrective actions. Pre-defined actions add to consistent reporting. Reminder emails can be sent to inspectors to notify them Reminder emails can be sent to inspectors to notify them
upcoming or missed inspections Permit References Photo Upload Feature Photo Upload Feature
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Screenshot of Field Inspection Tool (Nebraska)
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Screenshot of Field Inspection Tool (Nebraska DOR)
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Screenshot of Field Inspection Tool
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Screenshot of Field Inspection Tool
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Screenshot of Field Inspection Tool (Nebraska)
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Corrective Action Log(N b k DOR)(Nebraska DOR)
Automatically populated with inspection reportAutomatically populated with inspection report findings
Follow up is required to close-out corrective actions.Follow up is required to close out corrective actions. Overdue and pending corrective actions are
highlighted. g g Project inspection notification emails include
hyperlink to corrective action log for project. Punch-list Print Feature
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Screenshot of Corrective Action Log (Nebraska DOT)
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Email Distribution Lists(N b k DOT)(Nebraska DOT)
Completed inspection reports are automatically emailed t d fi d f ito pre-defined groups for review.
Email contains web links to both the inspection report and corrective action log located on the NDOR server.a d co ect e act o og ocated o t e O se e
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ALDOT’s Five PillarsALDOT s Five Pillars
Of Construction Stormwater Management…Of Construction Stormwater Management Manage the Communication
M th W k Manage the Work Manage the Water Manage the Erosion Manage the SedimentManage the Sediment
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Plans Reviews (Alabama)Plans Reviews (Alabama)
Erosion & Sediment Control Plan SheetsErosion & Sediment Control Plan Sheets must be Phased!
• Initial
• Intermediate• Intermediate
• Final
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Phased E&SC Plan Sheets (Al b )(Alabama)
Initial Phase:Initial Phase:
As clearing begins and Stabilized Construction As clearing begins and prior to any grubbing or grading work.
Entrances
Perimeter BarriersPerimeter Barriers
Stream Protection
Temporary Sedimentation Basins
Vegetated Buffers113
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Initial Phase
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Initial PhaseInitial Phase
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Phased E&SC Plan Sheets(Al b )(Alabama)
Intermediate Phase:
•As needed, as work is •Temporary Diversions•Ditch Checks
ongoing and advancing towards completion.•May include BMPs from
•Sumps•Inlet Protection (Stage 1 or 2)
•May include BMPs from the previous phase. •Temporary Slope Drains
•Earth BermsBMP f M t i l St k il•BMPs for Material Stockpiles
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Intermediate Phase
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Intermediate Phase
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Phased E&SC Plan SheetsPhased E&SC Plan Sheets
Final Phase:
• As work is completed and • Inlet Protection (Stage 3 or 4)permanent vegetation is established.
• May include BMPs from
• Permanent Stabilization• Erosion Control Products
h• May include BMPs from the previous phase.
• Ditch Linings• Sand Bag Ditch Checks
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Final Phase
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Final Phase
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Considerations for Moving Forward Focus on staff training, procedures, and quality
assurance and quality control in construction stormwaterlprogram implementation.
Dedicated program and include in capital construction b d t t i l t d i t BMP d ibudgets to implement and inspect BMPs during construction.
C t t ti l d t b i d t li it th Contract time may also need to be increased to limit the portion of the site that is active at any time, and to schedule large earthmoving operations outside of the g g prainy season.
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Watershed ApproachWatershed Approach U.S. EPA describes the watershed approach as
having the following characteristics:having the following characteristics: Hydraulically defined Involves all stakeholdersInvolves all stakeholders Strategically addresses priority water resource goals
(such as water quality and habitat)• integrates multiple programs• based on sound science• aided by strategic watershed plansy g p
uses adaptive management
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Contractual tools used by DOTContractual tools used by DOT
Memorandums of understanding (MOU) Memorandums of understanding (MOU) Intergovernmental agreements
C ti t Cooperative agreements Methods to apply Mitigation and/or BMP retrofit Policy of in-lieu feesy Purchases offsite or outside the right-of-way.
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Mitigation Fund Approach as part of CDOT’s New P t C t ti PPost-Construction Program
One Statewide Mitigation FundOne Statewide Mitigation Fund Money comes off the top of CDOT’s entire
construction budgetconstruction budget Money used for high priority water quality
improvement projects across the statep p j Opportunity to collaborate with local government
and watershed groups “Bigger Bang for the Buck!”
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Fund Administration(CDOT example)
Joint Committee Joint Committee Estimated $10 million annual contribution
F d f Funds can pay for: Project-related BMPs Watershed-based improvements Joint ventures Projects inside or outside of MS4 areas
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The Joint Committee (CDOT example)
Will make decisions on what projects Will make decisions on what projects should be funded
Include representation from all CDOT regions and input from key external agencies
Develop a 3-5 year plan that identifiesDevelop a 3 5 year plan that identifies priority projects
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Benefits of the Fund(CDOT example)
Larger projects can be funded Uses tax dollars more effectively Ensures long-term O&M of BMPs through Ensures long term O&M of BMPs through
agreements and collaboration Reduces future maintenance costs by Reduces future maintenance costs by
building fewer BMPs
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NJDOT Stormwater Mitigation Banking ProcessIs Water Quality Treatment NO
Is Water Quality Treatment feasibleNO
Required per NJAC7:8?
YES
ENDIs Water Quality Treatment feasiblewithin project footprint?
Consider providing treatment and bank
YES
Is WQ treatment feasible within project footprint?
Include treatment in project.Consider providing excess credit
for future banking
YES
credits within HUC-11 watershed
Does bank have sufficient creditsithi th HUC 11 t h d?
for future banking
Bank excess creditWithdraw credit
f th b k
NO
YESwithin the HUC-11 watershed?
Are off-site mitigation areas
from the bank
Use MTDs to provideNO
NO
Are off site mitigation areas available within HUC-11 watershed?
D i d b ild ff it iti ti
Use MTDs to provide WQ treatment
YES
Design and build off-site mitigation.Consider creation of excess mitigationto increase availability of bank credits within HUC-11 watershed
Deposit surplus credit to bank
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Considerations for Moving Forward
Investigate whether the legal authority needs to be expandedbe expanded.
Dedicate staff to policy oversight, compliance, d f t ll ti dand enforcement, as well as reporting and
tracking of watershed projects.
Implement watershed programs and provide implementation support.
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Acknowledgement (Many, many hours of contribution from DOTs nationwide)
David Ahdout New Jersey Roy Mills VirginiayHenry Barbaro MassachusettsCornelius Barmer MarylandJerry Chaney UtahPaul Corrente Connecticut
James Murphy Nevada
Kenneth Pace North CarolinaSkip Powe AlabamaKaruna Pujara Maryland
Vincent Davis DelawareBarry Fagan AlabamaWilliam Fletcher OregonAmy Foster TexasRik Gay Colorado
Rick Renna FloridaMichelle Reynolds WisconsinGabe Robertson NebraskaGreg Russell TennesseeKristin Schuster MichiganRik Gay Colorado
Hans Gucker OhioMark Hemmerlein New HampshireMatthew Lauffer North Carolina
Andrew McDaniel North Carolina
Kristin Schuster MichiganKenneth Stone WashingtonWendy Terlizzi ArizonaStephen Tibbetts MaineNick Tiedeken MinnesotaAndrew McDaniel North Carolina
Scott McGowen CaliforniaMeredith Upchurch District of ColumbiaRick Willard ColoradoTodd Williams Arizona
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Questions?Questions?
Please submit your questions through the Please submit your questions through the “chat” window Speakers: Speakers:
Kate Kurgan Scott McGowen Rachel Herbert Anna LantinAASHTO Caltrans USEPA RBF/[email protected] scott [email protected] [email protected] [email protected]@aashto.org [email protected] [email protected] [email protected]
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http://environment.transportation.org/center/prd t / bi / t toducts_programs/webinars/stormwater.aspx
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