Collection system Collection system MonitoringMonitoring(CMOM, I/I, and CSO)(CMOM, I/I, and CSO)

Bob GlennBob GlennWestern U.S. Sales Western U.S. Sales

ManagerManagerTeledyne Isco Inc.Teledyne Isco Inc.

Municipalities striving to…Municipalities striving to…

– Deliver a high level of service to Deliver a high level of service to their customerstheir customers

– Maintain regulatory compliance at all Maintain regulatory compliance at all timestimes

– **Improve asset management**Improve asset management– **Develop more efficient & **Develop more efficient &

productive work management plansproductive work management plans

**Especially critical in current municipal environment**Especially critical in current municipal environment

The Current Economic The Current Economic DilemmaDilemmaEstimated 84% of all communities will be impacted significantly in 2009—US Weekly

What does this mean?What does this mean?

Reduced staffing (RIF)Reduced staffing (RIF) Hiring & wage freezesHiring & wage freezes Fewer new projects being fundedFewer new projects being funded Budget dollars spread thinner Budget dollars spread thinner

across the boardacross the board– Replacement equipment reduced or Replacement equipment reduced or

cancelledcancelled– Training & professional development Training & professional development

opportunities limitedopportunities limited

The ChallengeThe Challenge Current economy does not grant Current economy does not grant

Municipal entities a “mulligan” Municipal entities a “mulligan” against their permit requirementsagainst their permit requirements

Like everyone else…Do more with Like everyone else…Do more with less.less.

Problems can increase in intensity Problems can increase in intensity and frequency with fewer and frequency with fewer resources to engage in resources to engage in preventative maintenance.preventative maintenance.

Complicating the Complicating the ChallengeChallenge Limited resources available to Limited resources available to

rectify often numerous problemsrectify often numerous problems Aging assets & infrastructure Aging assets & infrastructure Elevated regulatory requirementsElevated regulatory requirements Rapid rise in citizen awareness Rapid rise in citizen awareness

elevates expectationselevates expectations Potential for I/I events to have Potential for I/I events to have

“magnified” consequences“magnified” consequences

Infiltration/InflowInfiltration/Inflow

-Health risk and property damage-Renders WWTP processes less efficient-Uses up sewer capacity limiting expansion capability

Typical I/I SourcesTypical I/I Sources Cracked & broken pipesCracked & broken pipes Root intrusionRoot intrusion Roof vents & drains in older Roof vents & drains in older

structuresstructures Older or improperly fitted manhole Older or improperly fitted manhole

coverscovers CSO tie-insCSO tie-ins Illegal sewer service taps (sump Illegal sewer service taps (sump

pumps etc…)pumps etc…)

Methods of Identifying Methods of Identifying I & I SourcesI & I Sources

CamerasCameras Smoke TestingSmoke Testing Flow Flow

MeasurementMeasurementSmoke Testing and Smoke Testing and

Cameras are fine Cameras are fine secondary secondary investigative tools, investigative tools, but are not practical but are not practical for day to day for day to day monitoringmonitoring

Surcharge events & blockages not only Surcharge events & blockages not only get you in trouble with regulators, but get you in trouble with regulators, but also invite the ire of the local public also invite the ire of the local public due to potential adverse affects to due to potential adverse affects to public health and the environment.public health and the environment.

SSO SSO (Sanitary Sewer (Sanitary Sewer

Overflow)Overflow)

80% of U.S. population provided with 80% of U.S. population provided with drinking water from surface sourcesdrinking water from surface sources

Deadly bacteria deposited into these Deadly bacteria deposited into these surface waters (human illness due to surface waters (human illness due to direct exposure + food chain direct exposure + food chain contamination)contamination)

Property depreciation, extensive cleanup Property depreciation, extensive cleanup costs, long term health issuescosts, long term health issues

65% of polled municipalities in lower 48 65% of polled municipalities in lower 48 reported AT LEAST one major SSO eventreported AT LEAST one major SSO event

SSO SSO (Sanitary Sewer (Sanitary Sewer

Overflow)Overflow)

Where do we start ?Where do we start ?

Develop an overall strategyDevelop an overall strategy Conduct internal audit to assess Conduct internal audit to assess

core competency & capabilitiescore competency & capabilities Identify resources available to Identify resources available to

assist in addressing problemsassist in addressing problems Collect professional input when Collect professional input when

neededneeded Begin to “know your system”Begin to “know your system”

Indicators of System Indicators of System performanceperformance

Peaking responses during storm eventsPeaking responses during storm events System (basin) response timeSystem (basin) response time # of customer complaints# of customer complaints # of blockages# of blockages # and volume of un-permitted # and volume of un-permitted

dischargesdischarges Effect on operation of treatment Effect on operation of treatment

facilitiesfacilities

Flow Monitoring? Flow Monitoring? Why?Why? NPDES – Permit ComplianceNPDES – Permit Compliance Billing applicationsBilling applications

– Flumes/WeirsFlumes/Weirs I & I studiesI & I studies

– Promote efficient treatmentPromote efficient treatment– CSO and SSO reductionCSO and SSO reduction

cMOM cMOM – Capacity Management Operations and Capacity Management Operations and

Maintenance (System Optimization)Maintenance (System Optimization) Storm water monitoringStorm water monitoring

Flow MeasurementFlow Measurement The absolute KEY to understanding & The absolute KEY to understanding &

optimizing the performance of your optimizing the performance of your collection system!collection system!

Various technologies to choose fromVarious technologies to choose from Examine system needs and potential Examine system needs and potential

monitoring locations BEFORE monitoring locations BEFORE committing to any single technologycommitting to any single technology

Multiple technologies often needed Multiple technologies often needed due to myriad of site-specific variablesdue to myriad of site-specific variables

Basin Wide AnalysisBasin Wide Analysis

Careful Careful identification of identification of drainage drainage basins basins throughout the throughout the systemsystem

Systematic Systematic approach to approach to prioritizeprioritize

The Systematic The Systematic approachapproach

-Volume/effect of inflow on WWTP process & system welfare must be weighed

-”Pain Index” must be considered

-Limited resources to resolve issues also must be considered

Step #1: Temporary Step #1: Temporary MonitoringMonitoring

0

1000

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7000

0.00

0.05

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2 MonAug 99

3 Tue 4 Wed 5 Thu 6 Fri 7 Sat 8 Sun

Inflow & Infiltration StudyDry vs Wet Weather

gpm

in

8/1/1999 12:00:00 AM - 8/8/1999 12:00:00 AM

Dry Weather Flow (24410010.1 gal) Wet Weather Flow (32655465.2 gal)

Inflow & Infiltation (8245455.1 gal) Rainfall (1.68 in)

Temporary MonitoringTemporary Monitoring

Use lightweight, battery powered flow Use lightweight, battery powered flow meters to collect baseline datameters to collect baseline data

Identify & Prioritize problems basinsIdentify & Prioritize problems basins Investigate & Eliminate major I/I Investigate & Eliminate major I/I

contributorscontributors Structure finite maintenance Structure finite maintenance

resources to address biggest threatsresources to address biggest threats

Targets for Maintenance Targets for Maintenance Programs based on flow Programs based on flow data Analysisdata Analysis

Excessive siltation reducing capacityExcessive siltation reducing capacity Hydraulic issues causing backups & Hydraulic issues causing backups &

surchargessurcharges Identify excessive or illegal flow Identify excessive or illegal flow

contributorscontributors Address H2S generation issuesAddress H2S generation issues Gain insight into pump station Gain insight into pump station

performanceperformance

Data Indicating Data Indicating excessive siltationexcessive siltation

Surcharge/Reverse Surcharge/Reverse flowflow

Pump Station Pump Station performanceperformance

2.5

5.0

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250

500

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9:2016 Mon Jun 2003

9:25 9:30 9:35 9:40 9:45 9:50 9:55 10:00 10:05 10:10

City of JacksonFlowlink 4 for Windows

inft/

sgp

m

6/16/2003 9:15:00 AM - 6/16/2003 10:15:00 AM

Level (2.77 in) Velocity (4.84 ft/s) Total Flow (0.0078930 mgal)

Variable Rate Data StorageVariable Rate Data Storage

Variable Rate Data example Variable Rate Data example for I/I analysisfor I/I analysis

ModelingModeling Helps “predict” flow Helps “predict” flow

patterns and system patterns and system wide capacity.wide capacity.

Assess seasonable cycles Assess seasonable cycles & variables& variables

Used to approve Used to approve municipal expansion municipal expansion projectsprojects– New residential housing New residential housing

areaarea– New industrial plant New industrial plant

expansionexpansion Can help with Can help with

prioritization by prioritization by considering future I/I’s considering future I/I’s effect on future effect on future expansionexpansion

Permanent “Fixed-Permanent “Fixed-site” Monitoringsite” Monitoring

Placed at key Placed at key points in the points in the systemsystem

Often AC power Often AC power w/ battery backupw/ battery backup

Tied to plant w/ Tied to plant w/ SCADA or other SCADA or other telemetrytelemetry

Allows reaction time @ plant Allows reaction time @ plant during extreme events via alarmsduring extreme events via alarms

Opportunity to divert flows to Opportunity to divert flows to maintain plant integritymaintain plant integrity

Insight into effectiveness of Insight into effectiveness of maintenance programs with maintenance programs with elimination of problem flows, elimination of problem flows, backups, and siltation issuesbackups, and siltation issues

Permanent “Fixed-Permanent “Fixed-site” Monitoringsite” Monitoring

The St. Louis projectThe St. Louis project

430 permanent 430 permanent metersmeters

Tied to server & Tied to server & Web U/I serverWeb U/I server

Remote alarms & Remote alarms & event notificationevent notification

CSO event CSO event duration & duration & overflow volumeoverflow volume

The Future holds???The Future holds???

This is too big This is too big an issue to an issue to ignore…ignore…

Expertise in Expertise in this area can this area can benefit both benefit both government & government & private sector private sector employeesemployees

CONCLUSIONCONCLUSION

Regardless of Consultant or Regardless of Consultant or Municipality conducting the Municipality conducting the study… CAREFUL PREPARATION study… CAREFUL PREPARATION AND ANALYSIS is the key!AND ANALYSIS is the key!

ALWAYS have a plan. Be ALWAYS have a plan. Be systematic & thorough, using the systematic & thorough, using the best information & technologies.best information & technologies.

Questions?Questions?