© 2015 HDR, Inc., all rights reserved.

Real-Time Modeling BasicsUser Case Studies

Presented by

Saša Tomić, Ph.D., P.E., HDRTarun Gill, P.E., HDR

Asset Management and Prioritization - Innovyze WorkshopNovember 9th, 2016

AWWA Modeling Committee Survey (2013)

Modeling Trends§ Level of model detail has increased

§Use of Extended Period Simulation (EPS) has increased

§Models are being used for numerous and new applications

Model Use§ >50% used at least weekly§ ~75% used at least monthly

Most Frequent Models Uses

Fire Flow 24%

Planning 28%

Asset Mngmt

7%

Operational21%

Energy4%

Water Quality

10%Flushing

5%Other

1%

Source: AWWA EMAC Survey 2013

Most Important Technology

Real-Time20%

Mobility6%

GIS32%

Cloud-Computing

5%

Telemetry/Sensors

24%

Computer Speed12%

Other 1%

Source: AWWA EMAC Survey 2013

Features and Trends Ranking

Source: AWWA EMAC Survey 2013

A Model You Can Trust

Links to SCADA

Access to Results

How to Build

a Real-Time Model

§ Numerous models developed over 30 yearso SWMMo InfoWorks

§ Combined Models foro Queenso Brooklyno Manhattan

§ Models validationo 12-month recordo GARRo Tides and Snowmelt o Flow and Level Datao SCADA

§ Model needed to predicto Actual Annual Counts of CSOo Actual Annual Duration of CSOo Actual Annual Volume of CSO

NYC DEP, New York City, NY

Model Calibration for CSO

January 27, 2016 9

Radar Grid and Gage Network for GARR

Tides Data – NOAA Adjusted Atmospherics Tides

January 27, 2016

Flow Monitoring – Regulator R-083Meter Name Method Notes

R-083_M1 MP1: This meter is in 72 inch incoming line.

Depth may be used to measure depth over weir and for model verification

R-083_M1 MP2

Overflow detection sensor. Positive velocity

= overflow

No tidal intrusion expected. Sensor on weir

wall

R-083_M2 MP1: This meter is in 192” inch incoming line.

Depth may be used to measure depth over weir and for model verification

R-083_M2 MP2

Overflow detection sensor. Positive velocity

= overflow

No tidal intrusion expected. Sensor on weir

wall

R-083_M3 CSO Outfall Q=VA for thesingle 192 inch sewer.

Sensors measures all overflow from

structure

CSOFLOW_R-083

Preliminary CSO overflow

= M3 Qc when MP2 sensors detect velocity

Final CSO overflow calculation analyzed

by ADS and modified if

validation methods are valid. Reported

on FlowWorks as QFinal

Statistical Flow Comparison

Model Validation – CSO Event Counts

R-026 R-015 R-083 R-029

CSO

Even

tsCa

ptur

ed S

torm

Ev

ents

ADS Measured: 113 116 114 119Total Storms: 115 116 115 119

Exact Match: 96% 96% 91% 89%CSO: Model/ADS: 89% 113% 96% 85% includes FP

CSO Volume Comparison R-026

0

5

10

15

20

25

30

0 5 10 15 20 25 30

Mod

eled

CSO

Vol

ume

(MG

)

ADS CSO Volume (MG)

Rain >1.0'' Rain 0.5-1.0 ''

Rain <0.5 '' Snow Impacted

Basis: 72 Storm Events

4/29/2014 Event

7/2/2014 Event

+20%

-10%

Gold Standard Storms

Model Validation – CSO Volume

Study Period (March 28, 2014 – March 27, 2015) CSO Volume Comparison

Note: volumes shown reflect comparisons for events for which data are available at each location. Do not compare the relative volumes between locations.

ADS DataUpdated Model

R-026 R-015 R-083 R-029

Gold Standard Comparison R-026

Gold Standard Storms Only

A Model You Can Trust

Links to SCADA

Access to Results

How to Build

a Real-Time Model

§ Population doubled since 2000§ Water Sourceso Treated Water

• Treatment Plant ~44%• Denver Water ~35%• Reuse ~21%

o Raw Water• Colorado-Bit Thompson (C-BT) Project • Windy Gap System

Broomfield, COModel-Based Decision Support System

§ A ‘tool’ to balance water supply and demand § Include two sources of raw and two sources of finished water§ Provide output both operational and cost§ Make the ‘tool’ user-friendly, flexible, freely-distributable and § Limited budget

Project Challenge

System Schematic

System Schematic

Solution

§ Description § Simulation length§ Water supply o Water rights limitso Potable treatment targetso Denver Water criteria§ Pump stations§ Storage tanks

Scenario Setup

§ Treatment costs§ Master meter costs§ Raw water “costs”§ Pumping costs

Cost Data

Demand Allocation

Results

Reporting

A Model You Can Trust

Links to SCADA

Access to Results

How to Build

a Real-Time Model

§ NJ DEP require utilities to o Report potential CSOs in real time o Provide monthly report of daily CSO volumes

§ HDR has developed online system to satisfy these requirements

§ http://njcso.hdrgateway.com/

Passaic Valley Sewer Commission, NJ

Online CSO Notification System

Animated Radar Image(white dots – observation stations)

CSO Notification Site

CSO Site Navigation

CSO reporting

CSO reporting

CSO reporting

A Model You Can Trust

Links to SCADA

Access to Results

How to Build

a Real-Time Model

© 2015 HDR, Inc., all rights reserved.

Questions?Questions?

Tarun Gill, Tarun.Gill@hdrinc.com, (617) 357-7799 Saša Tomić, Saša.Tomic@hdrinc.com, (212) 545-5430

Thank You