Micromonitoring Comes of Age By John Barton , Ph.D., P.E. Joseph - - PowerPoint PPT Presentation

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Micromonitoring Comes of Age By John Barton , Ph.D., P.E. Joseph - - PowerPoint PPT Presentation

Mar 25, 2024 134 likes •476 views

Micromonitoring Comes of Age By John Barton , Ph.D., P.E. Joseph Kamalesh, M.S. Stantec Consulting Services, Inc. Overview Technology Research and Development Case Study Advantages Limitations Acknowledgements Seattle

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Micromonitoring Comes of Age

By John Barton, Ph.D., P.E. Joseph Kamalesh, M.S. Stantec Consulting Services, Inc.

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Overview

  • Technology
  • Research and Development
  • Case Study
  • Advantages
  • Limitations

Acknowledgements Seattle Public Utilities, Washington Clayton County Water Authority, Georgia City of Florence, Kentucky

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Technology

A new technique to cost-effectively isolate I/I. What is micromonitoring?

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What is a micromonitor?

Primary Flow

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WWTP

Regional Flow Monitoring

Regional Monitors (1 per 5 miles of pipe)

FLOW RAIN I/I

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Regional Flow Monitoring

Equipment: ADS, ISCO, HACH Cost: as much as $2,000 per month per site Range: Must be 2”+ of flow

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WWTP Regional Flow Monitor Distributed Micromonitors

Micromonitors - an SSES tool

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Flume Calibration

Research and Development

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Seattle Flume Calibration

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Seattle Flume Calibration

Supercritical Subcritical

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Supercritical Subcritical

Micromonitor Flow Characteristics

AV calculation Weir calculation

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Research and Development

Seattle

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CCWA Basin -071 Spring 2010 Regional Monitor -071

Case Study

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Micro Monitoring Schematic

Micromonitors upstream of -071 MM-06 MM-05 MM-04 MM-03 MM-02 MM-01

  • 071
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CCWA Basin 071

MM-06 MM-05 MM-04 MM-03 MM-02 MM-01

  • 071
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Regional Monitor -071

29,000 gal Feb 28th Storm

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MM-01

MM-01

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Micromonitor 01

~ 0 gal Feb 28th Storm

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MM-02

MM-02

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Micromonitor 02

~ 0 gal Feb 28th Storm

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MM-03

MM-03

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Micromonitor 03

~ 0 gal Feb 28th Storm

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MM-04

MM-04

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Micromonitor 04

9,000 gal Feb 28th Storm

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MM-05

MM-05

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Micromonitor 05

34,000 gal Feb 28th Storm

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Micro Monitoring Schematic

Layout of Micromonitors upstream of -071 MM-06 MM-05 MM-04 MM-03 MM-02 MM-01

  • 071
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MM-06

MM-06

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Micromonitor 06

36,000 gal Feb 28th Storm

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CCWA – Summary

INFLOW recorded at the downstream monitor (-071)

  • riginated in Sub-basin 6. (18% of the Basin)

82% reduction in SSES!!

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Micromonitoring Advantages

  • Significant I/I sources (the cost effective ones)
  • No CSE (one-man crew)
  • Quick Calibration
  • Rapid Deployment
  • Poor Quality sites
  • Low flow
  • Non-Invasive
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Micromonitoring Limitations

  • 8” pipes only
  • Lined pipes
  • Overestimates during surcharge and steep pipes
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Questions?