Presentation is loading. Please wait.

Presentation is loading. Please wait.

Assistant City Engineer

Similar presentations

Presentation on theme: "Assistant City Engineer"— Presentation transcript:

1 Assistant City Engineer
Real Time Savings: Transforming Real Time Hydraulic Data into Actionable Information Luis Montestruque, Ph.D. President EmNet, LLC Patrick Henthorn, P.E. Assistant City Engineer City of South Bend

2 Agenda The Problem Defining Goals and Objectives
Real Time Monitoring System From Data to Information Real Time Decision Support System Results

3 Case Study: City of South Bend, IN

4 City of South Bend, IN Population: 107,000 WWTP: 77 MGD
500 miles of sewer lines Combined Sewer System 20 square miles 36 CSO discharge points Separate Sewer System LTCP Tunnel, separation, WWTP expansion LTCP Cost: $450M East Race Environmental Sensitive Area

5 South Bend Goals and Objectives
Eliminate dry weather overflows Prevent basement backups Better understand system hydraulic performance Maximize flows to WWTP and explore RTC Calibrate model

6 Data Originators Options TRADEOFF Area Velocity Flow Meters
Different vendors/ different applications More detailed data (flow, level, velocity) More expensive Level Transducers Standard (ultrasonics, sonar, pressure) Data: level (calculations needed) Inexpensive TRADEOFF

7 Dense Monitoring System
SCADA System: Rockwell – RSView SCADA Monitored locations: 17 (mostly lift stations) Additional Monitoring: Based on Objectives CSO outfalls: 36 sites Interceptor: 27 sites Trunk lines: 42 sites Retention basins: 5 sites Cost: $3M CSS SCADA Points: 17 RT-DSSPoints: 110

8 Design to Fit Objectives: Development: Results: Easy deployment
Battery operated Data every 5 minutes Low maintenance Development: University of Notre Dame Purdue University Results: Mixed 900Mhz/Cellular Deployed mid winter 2008 Deployment time 1 month Enables us to gather data more frequently, more reliably, and minimize maintenance costs.

9 Immediate Objectives Focus on CSOs & Interceptor
First priority – organize data and learn how the system behaves during wet and dry weather Un-learn what is “normal” Second priority – revise maintenance schedules Initial stage - Increase number of inspections Add calibration checks Focus on CSO service area cleaning Second stage – Reduce cleaning frequency Revise staff duties 9

10 Deviations from Model Weir Elevation Water Level Overflow line
Throttle line Trunk line 10

11 Deviations from Model This is normal! 11

12 Deviations from Model Weir Elevation Small blockage forms
CSO is vactored Average Dry Weather Flow 12

13 Increased O&M Benefits
Use of vactor trucks 50 additional days annually = $133K Clean 2000 additional catchbasins annually = $40K Increase number of sewer inspections at non-routine locations by 175% = $29K All this with Same Staff Total Dynamic Maintenance Value = $202,000 “It’s like hiring more personnel, but without the cost.” Gary Gilot, Director of Public Works, City of South Bend, IN 13

14 Real Time Data 110 Monitoring Sites 30,000 Data Points Per Day 14

15 Real Time Decision Support Systems
+ Organization + Context + Analysis Information Data

16 SCADA Integration Enter CSOnet data analysis as a way to better understand data that comes in and “see the overall picture” at a glance Core tool is our Profiler. Walk through the features of this tool and how it can be used to provide insight to the operators

17 SCADA Integration Client saw this profile. From this analysis, system impediments were found & removed, Maintenance schedules were altered to more effectively assign responsibilities and future CSO events were averted saving hundreds of thousands of $ As we talked about at the beginning, this shows how the system acts at various points allowing operators to see

18 Using GIS Bird’s Eye Viewer
Another way this has been used by a client – they saw the river rise (as indicated by the dotted line) the client an overflow condition. This additional tool, the Bird’s Eye Viewer shows that trunk lines are …. 18

19 Dry Weather Overflow Elimination
97% DWO reduction from 2008 to 2010 2008 = $797,500 fines 2009 = $275,000 in 2009 fines 2010 = $27,500

20 Operations Optimization
Eureka moment, SoBend discovers that pipes are not full while overflowing

21 Optimization In South Bend, IN
Reduce CSO volume by balancing flows to WWTP Increase inline storage opportunities Increase storage ability in retention basins by up to 150% Optimize CIP saving $120 Million Annual Overflow Volume Existing System (MG) Annual Overflow Volume CSOnet System (MG) Percentage Reduction (%) 918.2 702.8 23% enhance

22 Summary Advances in information processing lead to new ways of performing maintenance, operations, and design Integration of real time data, model, and visualization tools provides new insight Future systems will further enhance capabilities by providing forecasting of hydraulic conditions before they happen

Download ppt "Assistant City Engineer"

Similar presentations

Ads by Google