adaptive stormwater management using cloud-based ... · technology for a water and cyber-resilient...

© 2019 OPTIRTC, INC. 1

Adaptive Stormwater Management using Cloud-Based Technology for a Water and Cyber-Resilient Future

Villanova Urban Stormwater PartnershipStormwater Management Symposium 2019

Kaitlin Vacca, PhD, PEOpti RTC, Inc

© 2019 OPTIRTC, INC.

Stormwater Management Objectives

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Flooding

More frequent flooding events due to changing patterns of precipitation –property damage and public safety

concerns

770 combined sewer communities in the US, many of which have obligations

under the Clean Water Act to reduce CSOs (ex: Philadelphia; Kansas City,

MO)

7,450 Municipal Separate Storm Sewer System (MS4) communities in the US with water quality permit requirements

(ex: Chesapeake Bay counties)

Combined Sewer Overflows Water Quality


Traditional Infrastructure Project Lifestyle


Cloud Platform for Smart Stormwater ManagementContinuous Monitoring

Adaptive Control

Visibility and Insight

Trust and Security

OPTI PLATFORM


● COMPETING GOALS & OBJECTIVES● CHANGING CLIMATE● UNKNOWN WATERSHED

PARAMETERS● UNPREDICTABLE DESIGN STORMS

DESIGN

How can we leverage technology to ensure a future of water resiliency?

Water & Cyber Resiliency


Pond 1 - Ellicott City, MD

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Drainage Area = 48.11 acImpervious Area = 27.99 ac

Designed for Maximizing Water Quality Credits

Pre-Opti WQ Credit = 14 ac

Post-Opti WQ Credit = 26 ac

Located in Ellicott City Watershed - flood control desired

Competing Stormwater Objectives

Water Resiliency: Adaptivity in a Changing Environment Pond 1


Water Resiliency: Adaptivity in a Changing Environment

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Adapt to multiple goals: flood mitigation and water quality

Pond 1


Pond 2 - Philadelphia, PA

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Known:- 64 acres drainage area- 11.36 acres impervious

(on-site and off-site)- 0.33 cfs baseflow - Irrigation volume required- Built 50+ years ago- Flows into a CSO

Pond 2

Passive/Static Sizing:- Size infrastructure for 1.5 inch

storm over IA- Required Storage Volume =

61,855 CF- Manage flow over entire DA



August 2018, Passive (not controlled by the Opti valve), 0.96 in storm over 3.5 days

Pond 2



● Ran HydroCAD and SWMM models with known information

● Valve closed up to the 2 yr, 24 hr storm

● No overflow anticipated for storms under 1.5 inches with MAX drawdown



Nov 2018, Adaptive (controlled by the Opti valve), 0.69 in over 8 hrs, pond overflowed spillway

Required Volume for 0.69 inch of runoff over known IA (CF) 28,453

Actual Volume Captured during 0.69 inch event (CF) 85,219



April 2019, Adaptive (controlled by the Opti valve), 0.86 in over 19 hrs, 93,104 CF available storage

Pond 2




Using technology for management of stormwater provides adaptability and resiliency - how do we ensure that our stormwater infrastructure remains resilient

to technology?


● COMPETING GOALS & OBJECTIVES● CHANGING CLIMATE● UNKNOWN WATERSHED

PARAMETERS● UNPREDICTABLE DESIGN STORMS

● CHANGING FORECASTS● CELLULAR NETWORK WENT DOWN● AZURE/MICROSOFT OUTAGE● FIRMWARE UPDATE ISSUES● TOOLS FOR QUICKER DETECTION

DESIGN TECHNOLOGY

How can we leverage technology to ensure a future of water resiliency?

Water & Cyber Resiliency


Sensors

Municipal Operators

Consulting Delivery Partners

Private Property Owners

Community Reporting

Planning Dept

Regulator Reporting

Pumps CamerasHydrology

Data Networks

Weather Forecasts

WWTP and other SCADA

Cyber Resiliency: Adaptivity to Changing Technology

Opti Cloud Trust and Security



MECHANICAL

Civil Design:Passive Overflow

Downstream Condition Assessment

Mechanical:Battery Backups

Solar PowerOnsite Manual Control

Hardware WarrantyFail-safe Position

O&M Training

Cloud-based:Anarchic Scalability

Remote Manual ControlMicrosoft Hosted ISO 27001

Internationally Certified Data Centers Product Release Cycles and 3rd Party Security AuditFrom Fail-safe to Safe-to-fail



● Daily cellular connectivity checks● Twice weekly site checks● Alerting for real-time monitoring

and maintenance● Platform diagnostics

Alert Information

Control Panel OfflineSystem is offline or had poor connection for more than 60 minutes

Pond Overflowing Water is discharging over the overflow weir

Persistent high water level

The water level has persisted at an undesirable high water level for too long (level and duration configurable)

Forecast Rain Event The forecast indicates an upcoming rain event (any size)

Design Storm ForecastA storm greater than the [X] year design interval is forecast to begin in [Y] hours

Excessive Valve Deviation

The target and measured value states are more than 5% different

Manual Operation Mode

Opti’s automatic controls of the pond have been manually overridden


Adaptive Stormwater Management

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Monitoring and Analytics Enhance Existing Infrastructure

Optimize New Infrastructure

Coordinated Watershed Control


Kaitlin Vacca, PhD, PEDirector of Project Delivery

Opti RTC, Inc.Philadelphia Office

[email protected]

Questions?


Additional Slides



Sept 2018, Adaptive (controlled by the Opti valve), 0.54 in over 23 hrs, pond overflowed spillway



Valve closed during storm

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