flow monitoring: dollars and...
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Flow Monitoring: Flow Monitoring: Dollars and SensorsDollars and Sensors
March 12, 2008 * 1:00March 12, 2008 * 1:00--3:00pm EDT3:00pm EDT
TopicsTopics
Flow monitoring programsFlow monitoring programsPlanning and performing the field work Planning and performing the field work Common data issues and QA/QC Common data issues and QA/QC Lessons learned Lessons learned Managing competing priorities Managing competing priorities
modeling modeling operations operations consent decree reporting consent decree reporting billing billing
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SpeakersSpeakers
Stuart Bowns, Stuart Bowns, HydromaxHydromax USAUSAAbraham Araya, Ph.D., King Abraham Araya, Ph.D., King County/DNRP, Wastewater Treatment County/DNRP, Wastewater Treatment DivisionDivisionSusan E. Moisio, P.E., CH2M HILLSusan E. Moisio, P.E., CH2M HILLModeratorModerator: Jean Vieux, : Jean Vieux, VieuxVieux, Inc., Inc.
Stu BownsStu Bowns
Project Manager, Hydromax USA, Project Manager, Hydromax USA, Florence, KYFlorence, KY
B.S. in Geography from S.U.N.Y. at B.S. in Geography from S.U.N.Y. at BrockportBrockport
First CCTV project in 1972 and first flow First CCTV project in 1972 and first flow monitoring project in 1975monitoring project in 1975
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Planning the Field WorkPlanning the Field Work
Project Objectives Project Objectives
Site SelectionSite Selection
Site Conditions Site Conditions
History of Technology (open channel)History of Technology (open channel)
Performing the Field WorkPerforming the Field Work
Selection of Equipment Selection of Equipment
InstallationsInstallations
MaintenanceMaintenance
Data RequirementsData Requirements
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Project Objectives Project Objectives
Used for billing, capacity analysis, Used for billing, capacity analysis, csocso
occurrence, operations, etc.occurrence, operations, etc.
Flow or Occurrence Flow or Occurrence
Short or Long Term (Permanent?)Short or Long Term (Permanent?)
Sampling time Sampling time 5 minute, 15 minute, flow or depth adjusted, 5 minute, 15 minute, flow or depth adjusted, etc.etc.
Uptime and accuracyUptime and accuracy
Data requirementsData requirementsFormatFormat
Monthly, Weekly, Daily, Web basedMonthly, Weekly, Daily, Web based
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Site SelectionSite Selection
Project ObjectivesProject Objectives
System mapsSystem maps
InIn--house personnel experienced with field house personnel experienced with field
conditionsconditions
Multiple manholes for each selected siteMultiple manholes for each selected site
Attempt to avoid stacking meter sitesAttempt to avoid stacking meter sites
Site ConditionsSite Conditions
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Perform Field Inspections and DocumentPerform Field Inspections and Document
Field Inspections Need to Identify:Field Inspections Need to Identify:Access Access SafetySafety
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HydraulicsHydraulics
History of TechnologyHistory of TechnologyOpen ChannelOpen Channel
Level only (dipper, bubbler, float)Level only (dipper, bubbler, float)
Differential pressure & ultrasonic levelDifferential pressure & ultrasonic level
ElectroElectro--magnetic velocitymagnetic velocity
Doppler velocityDoppler velocity
Transit time velocityTransit time velocity
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Range gated Range gated dopplerdoppler velocityvelocity
Radar velocityRadar velocity
Wireless communicationsWireless communications
End user product with web data End user product with web data
presentation & data analysis tools presentation & data analysis tools
??????????????????????
Selection of EquipmentSelection of Equipment
UseUse
Project ObjectivesProject Objectives
Site Selection and ConditionsSite Selection and Conditions
Knowledge of TechnologyKnowledge of Technology
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Selection of EquipmentSelection of Equipment
UseUse
Project ObjectivesProject Objectives
Site Selection and ConditionsSite Selection and Conditions
Knowledge of TechnologyKnowledge of Technology
Accuracy and repeatability starts with the Accuracy and repeatability starts with the
right meter in the right site right meter in the right site
Low DWF level with maximum surchargesLow DWF level with maximum surcharges
Depth of manhole is factored into any Depth of manhole is factored into any dpdp
or ultrasonic level limitsor ultrasonic level limits
Silt debris changes frequentlySilt debris changes frequently
Multiple Multiple dpdp level sensors set at offsetslevel sensors set at offsets
Foaming on water surfaceFoaming on water surface
DpDp level and level and dopplerdoppler sensor in invertsensor in invert
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Low levelLow levelLow profile sensorLow profile sensorUltrasonic levelUltrasonic level
Low level with fast velocitiesLow level with fast velocitiesUltrasonic level with radar velocityUltrasonic level with radar velocity
High levelHigh levelRange gated Range gated dopplerdoppler
Very clear flow Very clear flow ElectroElectro--magnetic velocitymagnetic velocity
Frequent rags, solids, grease, hard to accessFrequent rags, solids, grease, hard to accessWireless communication Wireless communication
Constant surchargeConstant surchargeDoppler velocity mounted on crown of pipeDoppler velocity mounted on crown of pipe
CSO occurrence CSO occurrence Ultrasonic levelUltrasonic level
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0
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/04
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/04
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/04
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Flow
(MG
D)
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InstallationsInstallationsDocumentDocument
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FlowFlow Debris Debris DepthDepth Velocity Velocity Depth Depth Flow Flow (in)(in) (FPS) (FPS) (in) (in)
33 22 00 RecordedRecorded3.25 3.25 22 00 11% Low11% Low33 2.252.25 00 13% Low13% Low33 22 0.50.5 8% High8% High
66 22 00 RecordedRecorded6.25 6.25 22 00 4% Low4% Low66 2.252.25 00 11% Low11% Low66 22 0.50.5 3% High3% High
88--inch Lineinch Line
FlowFlow Debris Debris DepthDepth Velocity Velocity Depth Depth Flow Flow (in)(in) (FPS) (FPS) (in) (in)
44 22 00 RecordedRecorded4.25 4.25 22 00 9% Low9% Low44 2.252.25 00 13% Low13% Low44 22 0.50.5 5% High5% High
1616 22 00 RecordedRecorded16.25 16.25 22 00 2% Low2% Low1616 2.252.25 00 13% Low13% Low1616 22 0.50.5 1% High1% High
2222 22 00 RecordedRecorded22.25 22.25 22 00 1% Low1% Low2222 2.252.25 00 9% Low9% Low2222 22 0.50.5 1% High1% High
2424--inch Lineinch Line
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Data RequirementsData Requirements
911.113.3904/20/07 02:00
891.073.4304/20/07 01:45
901.093.4204/20/07 01:30
931.103.4804/20/07 01:15
1021.183.5204/20/07 01:00
1061.193.6104/20/07 00:45
1131.233.6804/20/07 00:30
1181.243.7804/20/07 00:15
1241.283.8204/20/07 00:00
1261.283.8804/19/07 23:45
1211.243.8504/19/07 23:30
1341.313.9904/19/07 23:15
1391.324.0704/19/07 23:00
1521.424.1204/19/07 22:45
1431.324.1604/19/07 22:30
1431.344.1104/19/07 22:15
1521.384.2004/19/07 22:00
1451.344.1604/19/07 21:45
1481.354.2004/19/07 21:30
1391.294.1404/19/07 21:15
1471.334.2104/19/07 21:00
1401.334.0704/19/07 20:45
1441.324.1704/19/07 20:30
1051.083.8404/19/07 20:15
gpmft/sinUnits
Flow RateVelocityLevelLabel
HUSA06 - 5th Pl. and Sheridan Rd.Site Name
911.113.3904/20/07 02:00
891.073.4304/20/07 01:45
901.093.4204/20/07 01:30
931.103.4804/20/07 01:15
1021.183.5204/20/07 01:00
1061.193.6104/20/07 00:45
1131.233.6804/20/07 00:30
1181.243.7804/20/07 00:15
1241.283.8204/20/07 00:00
1261.283.8804/19/07 23:45
1211.243.8504/19/07 23:30
1341.313.9904/19/07 23:15
1391.324.0704/19/07 23:00
1521.424.1204/19/07 22:45
1431.324.1604/19/07 22:30
1431.344.1104/19/07 22:15
1521.384.2004/19/07 22:00
1451.344.1604/19/07 21:45
1481.354.2004/19/07 21:30
1391.294.1404/19/07 21:15
1471.334.2104/19/07 21:00
1401.334.0704/19/07 20:45
1441.324.1704/19/07 20:30
1051.083.8404/19/07 20:15
gpmft/sinUnits
Flow RateVelocityLevelLabel
HUSA06 - 5th Pl. and Sheridan Rd.Site Name
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Storm 3
0.000.100.200.300.400.500.600.700.800.901.00
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7:00
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9Tu
e
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u
RD
II (c
fs)
Rainfall RDII Week EndAvg Dry
Week DayAvg Dry
Gross Q
Storm 2
0.000.100.200.300.400.500.600.700.800.901.00
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19:0
0
1:00
7:00
13:0
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19:0
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1:00
7:00
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Rai
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0200400600800
100012001400
04/0
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5Th
u
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i
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7 Sa
t
RD
II (c
fs)
Rainfall RDII Week EndAvg Dry
Week DayAvg Dry
Gross Q
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Questions?Questions?
Abraham Araya, PhD Abraham Araya, PhD
Water Quality Planner, King Water Quality Planner, King County/DNRP, Wastewater Treatment County/DNRP, Wastewater Treatment DivisionDivisionM.Sc. (1987) and PhD (1993) in Geology M.Sc. (1987) and PhD (1993) in Geology from The New Mexico Institute of Mining from The New Mexico Institute of Mining and Technology (NM Tech) in Socorro, and Technology (NM Tech) in Socorro, New Mexico.New Mexico.8 years of Flow Monitoring Experience8 years of Flow Monitoring Experience
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OverviewOverviewKing County Wastewater Treatment Division (WTD) King County Wastewater Treatment Division (WTD) Facilities.Facilities.
Flow Monitoring Flow Monitoring -- What we need and how we use it.What we need and how we use it.
Flow Monitoring BackgroundFlow Monitoring Background
Lessons LearnedLessons Learned
Flow Monitoring and Data QA/QC Process.Flow Monitoring and Data QA/QC Process.Field work.Field work.Office work.Office work.
FacilitiesFacilitiesTreatment plantsTreatment plants
Two regional, one local, Two regional, one local, two under constructiontwo under construction
CSO facilities: 4CSO facilities: 4Conveyance pipes: 330 milesConveyance pipes: 330 milesPump stations: 42Pump stations: 42Regulator stations: 19Regulator stations: 1935 Local Agencies35 Local AgenciesService Area: 414 Mi2Service Area: 414 Mi2Serves 1.4 millionServes 1.4 millionCombined: 70 Mi2Combined: 70 Mi2
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Why We Need It & How We Use ItWhy We Need It & How We Use It
Track longTrack long--term trends.term trends.Analyze conveyance system capacity.Analyze conveyance system capacity.Conduct hydraulic modeling and calibration.Conduct hydraulic modeling and calibration.Analyze Inflow/infiltration.Analyze Inflow/infiltration.Calculate CSO volume for NPDES reporting.Calculate CSO volume for NPDES reporting.Plan inspections and schedule maintenance Plan inspections and schedule maintenance and repair activities and repair activities
Flow Monitoring Flow Monitoring -- BackgroundBackground
Pre 2000 Pre 2000 90 to 100 short and long90 to 100 short and long--term (LTM) sitesterm (LTM) sites
2000 2000 –– 2002 KC Regional I/I Control Program2002 KC Regional I/I Control Program775 775 –– 806 mini basins 806 mini basins Average Size: 150 Acres, 22,000 LF of Sewer MainAverage Size: 150 Acres, 22,000 LF of Sewer Main75 Long 75 Long --Term Term
Post 2002Post 200275 to 120 Long Term & 75 to 120 Long Term & ““Short TermShort Term”” Monitoring SitesMonitoring Sites
•• Combined System = 37 (NPDES = 11)Combined System = 37 (NPDES = 11)•• Separated System = 82Separated System = 82•• Telemetry Units = 57Telemetry Units = 57•• Manually collected = 62Manually collected = 62
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Lessons Learned Lessons Learned Local Agency ParticipationLocal Agency Participation
All Local Agencies Participated in Flow All Local Agencies Participated in Flow MonitoringMonitoring
Provided GIS Information Provided GIS Information
Assisted in Permitting, Access to Local Assisted in Permitting, Access to Local Lines, and traffic ControlLines, and traffic Control
Helped Select, Design, and Implement Helped Select, Design, and Implement Pilot ProjectsPilot Projects
Participated in Pre & PostParticipated in Pre & Post--Project Flow Project Flow MonitoringMonitoring
ContractorContractor
Set Performance Measurement CriteriaSet Performance Measurement CriteriaData Uptime and Flow VerificationData Uptime and Flow Verification
Trained Staff Working With ContractorTrained Staff Working With ContractorQA/QC Data for Consistency and Accuracy QA/QC Data for Consistency and Accuracy
Before Project Completion and the Modeling Before Project Completion and the Modeling PhasePhaseAudit Any Changes Made to Flow DataAudit Any Changes Made to Flow Data
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VendorVendorOne Size Does One Size Does NOT NOT Fit ALL Fit ALL
Research Products and ReferencesResearch Products and References
Training and Product Demonstration Training and Product Demonstration Request Training and Product Demonstration Request Training and Product Demonstration Verify Meter AccuracyVerify Meter AccuracyEvaluate Data Collection and Communication ProtocolsEvaluate Data Collection and Communication ProtocolsEvaluate Software and HardwareEvaluate Software and Hardware
Customer Service / Technical SupportCustomer Service / Technical SupportEase of Access to SupportEase of Access to SupportQuality and Level of SupportQuality and Level of Support
Pre vs. Post 2000 Pre vs. Post 2000 Data IssuesData Issues
-- Proper Site selection & Meter InstallationsProper Site selection & Meter Installations-- Timely MaintenanceTimely Maintenance-- Field Verifications & Onsite Data ReviewField Verifications & Onsite Data Review-- Office Data Review to Identify ProblemsOffice Data Review to Identify Problems
-- Increased UptimeIncreased Uptime-- Increased Data Quality and ReliabilityIncreased Data Quality and Reliability-- Responsiveness to ClientsResponsiveness to Clients-- Timely Delivery of Quality Data Timely Delivery of Quality Data -- Flexibility to Accommodate ClientFlexibility to Accommodate Client’’s Needss Needs
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Changes ImplementedChanges Implemented
Staffing LevelStaffing Level
Additional Metering TechnologyAdditional Metering Technology
Continuous Staff TrainingContinuous Staff Training
•• Site Inspection and SelectionSite Inspection and Selection•• Monitor InstallationMonitor Installation•• Field Verification of Meter AccuracyField Verification of Meter Accuracy•• Onsite Data Quality Verification and Onsite Data Quality Verification and
TroubleshootingTroubleshooting
Staff Training Staff Training
Meter Installation and VerificationMeter Installation and Verification
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Meter Installation & VerificationMeter Installation & Verification
Site InvestigationSite Investigation
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Data Quality Verification and Data Quality Verification and TroubleshootingTroubleshooting
Changes ImplementedChanges Implemented
Standard Operating ProceduresStandard Operating Procedures
Site Visit LogsSite Visit Logs
Weekly Meetings With Field & Office Weekly Meetings With Field & Office StaffStaff
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Flow Monitoring ProcessFlow Monitoring Process
Field workField workSite Investigation.Site Investigation.Equipment Installation.Equipment Installation.Field Verification.Field Verification.Data Collection and Record Keeping.Data Collection and Record Keeping.
Office workOffice workFlow Data Evaluation and Finalization.Flow Data Evaluation and Finalization.Troubleshooting Equipment/Sites.Troubleshooting Equipment/Sites.
Flow Monitoring EquipmentFlow Monitoring Equipment
Area Area –– Velocity meters (devices that measure velocity Velocity meters (devices that measure velocity and depth for flow rate calculation (Q= A x V))and depth for flow rate calculation (Q= A x V))
Meter Type Depth Sensor Velocity SensorI Ultrasonic / Pressure Ultrasonic/ Doppler
Peak II Pressure Transducer Electromagnetic
IIIUltrasonic / Pressure (only during surcharged conditions)
Radar or Electromagnetic sensor (during surcharge)
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Field Verification of Meter AccuracyField Verification of Meter Accuracy
Depth confirmationDepth confirmation
Velocity ConfirmationVelocity ConfirmationFlows > 2 inches measured using a Flows > 2 inches measured using a portable velocity meter.portable velocity meter.
Low flow (usually < 1 to 2 inches of Low flow (usually < 1 to 2 inches of
DOF) using volumetric Weirs or DOF) using volumetric Weirs or
Propeller Meter.Propeller Meter.
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Data Collection/TransferData Collection/TransferData collected weekly/biweekly using a laptop computer (and Data collected weekly/biweekly using a laptop computer (and remotely from the office).remotely from the office).Onsite data review (and maintenance).Onsite data review (and maintenance).Daily data back up to king county server (DNRP/WTD).Daily data back up to king county server (DNRP/WTD).Daily update of site visit logs and verification reports.Daily update of site visit logs and verification reports.Notify data analyst.Notify data analyst.
Office Work Office Work Flow Monitoring Data EvaluationFlow Monitoring Data Evaluation
Review Meter Functionality and AccuracyReview Meter Functionality and Accuracy
Perform Diagnostics to Verify Sensor FunctionalityPerform Diagnostics to Verify Sensor Functionality
Compare Meter Readings to Field ReadingsCompare Meter Readings to Field Readings
Review Field Notes and Any Service RecordsReview Field Notes and Any Service Records
Data EditingData Editing
Data FinalizationData FinalizationIl buono, Il brutto, Il cattivoIl buono, Il brutto, Il cattivo
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Hydrographs and ScattergraphsHydrographs and Scattergraphs
Review Meter Functionality and AccuracyReview Meter Functionality and AccuracyComparison of Depth and Velocity PatternsComparison of Depth and Velocity Patterns
Consistency With site hydraulics (ex. P/S)Consistency With site hydraulics (ex. P/S)
Identify sites that have equipment/installation Identify sites that have equipment/installation problemsproblems
Identify sites with unusual hydraulicsIdentify sites with unusual hydraulics
0.0
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17 Fri 18 Sat 19 Sun 20 Mon 21 Tue 22 Wed
Pump Station Influenced Site
Vel
ocity
(fp
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epth1 (in)
Time
WINT003\mp1\RAWVEL WINT003\mp1\UNIDEPTH
Consistency With Site HydraulicsConsistency With Site Hydraulics
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Comparing Meter & Field ReadingsComparing Meter & Field Readings
Skyway Pilot (raw) flow data 10/29/02 to 1/16/03
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Date/Time
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th (i
nche
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low
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15 Mon 22 Mon 1 Feb
Poor Velocity Data
Vel
ocity
(fp
s)
Depth1 (in)
Time
BOECR002\mp1\RAWVEL BOECR002\mp1\UNIDEPTH
Verifying Sensor Functionality and Verifying Sensor Functionality and Data QualityData Quality
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15 Sat 22 Sat 1 Apr
Mercer Mini Pre-rehab flow monitoring (2002/2003)
Velo
city
(fps)
Depth1 (in)
Time
MercerMini\mp1\RAWVEL MercerMini\mp1\UNIDEPTH
Reconstituted velocityFlagged depth
Data EditingData Editing
Depth Drifting & Poor Velocity Data Depth Drifting & Poor Velocity Data (Sediment Problem)(Sediment Problem)
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Data FinalizationData FinalizationRAW DATA• Velocity• Depth
Data Review• Hydrograph Analysis • Scattergraph Analysis• Review Field Notes and Service Logs
FINAL DATA
Data Editing• Flagging Erroneous Data• Reconstructing Velocity Data• Check Data Anomalies
Data Finalization• Verify Pipe Dimension• Verify Silt Level• Calculate Gain or Average Velocity • Depth/Velocity Adjustments• Flow Balancing• Generate Flow Quantities
36
Questions?Questions?
Susan Moisio, PESusan Moisio, PESenior technologist with CH2MSenior technologist with CH2M HILL.HILL.
M.S Civil Engineering Youngstown State M.S Civil Engineering Youngstown State UniversityUniversity
B.S. in Civil Engineering from Arkansas State B.S. in Civil Engineering from Arkansas State UniversityUniversity
21 years of experience in collection system 21 years of experience in collection system engineering, including 16 years with the engineering, including 16 years with the Metropolitan Sewer District of Greater Cincinnati Metropolitan Sewer District of Greater Cincinnati
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AgendaAgenda
Monitoring programsMonitoring programs
Local Monitoring vs System Wide MonitoringLocal Monitoring vs System Wide Monitoring
Data AnalysisData Analysis
Monitoring ProgramsMonitoring Programs––driven bydriven by
Consent Decrees/Master PlanningConsent Decrees/Master Planning
OperationsOperations
Hydraulic Understanding of SystemHydraulic Understanding of System
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Consent Decree DrivenConsent Decree Driven
OperationsOperationsSSOsSSOsBasement BackupsBasement BackupsI/I Removal ProgramsI/I Removal ProgramsCredits for DevelopmentCredits for Development
Hydraulic Understanding of SystemHydraulic Understanding of System
Consent Decree DrivenConsent Decree Driven
OperationsOperations
Hydraulic Understanding of SystemHydraulic Understanding of System
Monitoring ProgramsMonitoring Programs
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Local Monitoring FocusLocal Monitoring FocusIdentified Problem AreasShort Monitoring PeriodDefined Boundary ConditionSolving Localized ProblemsHydraulic Model Development SSOsBasement BackupsDid not focus on pre RDI/I Monitoring
Local Monitoring FocusLocal Monitoring Focus
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System Wide MonitoringSystem Wide MonitoringConsent Decree DrivenBoth Sanitary and Combined18” Above Combined12” Above SanitaryBuild Dynamic Hydraulic ModelKeep > 100 Permanent Meters
System Wide MonitoringSystem Wide Monitoring
•3 Major Basins
•300 Monitors
•February through May for 2 years
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145145 SitesSites
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Mill CreekMill Creek
5454 SitesSites
#Y#Y
#Y#Y #Y#Y
#Y
#Y
#Y#Y#Y#Y
#Y
#Y
#Y
#Y
#Y
#Y
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#Y
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#Y#Y#Y#Y
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#Y
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Great MiamiGreat Miami
44
101101 SitesSites
#Y
#Y
#Y#Y
#Y#Y
#Y#Y#Y #Y#Y#Y
#Y
#Y
#Y
#Y
#Y
#Y
#Y
#Y#Y
#Y
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Little MiamiLittle Miami
Monitoring SitesMonitoring Sites
45
System Wide MonitoringSystem Wide Monitoring
•Different Site Conditions
•Safety Concerns
•Access
System Wide MonitoringSystem Wide Monitoring
Large Diameter Combined Sewers
46
Site and Hydraulic ConditionsSite and Hydraulic Conditions
Main Interceptors Into Mill Creek WWTP
•Surcharged during installation
•Surcharged during maintenance
47
System Wide Monitoring System Wide Monitoring –– SSO 700 metering SSO 700 metering before and after monitoring programbefore and after monitoring program
Data AnalysisData Analysis
49
Bubble Bubble DiagramDiagram•Relationship between meters
•Sets up project understanding
•Understand how flows are entering and leaving the system
•Field Inspection
N
0.004
0.004
1.127
1.127
0.0400.040
4.843
2.630
1.025
1.0421.025
1.908 1.621
1.908 2.646
0.031 1.641
1.610 -5.901
0.278 0.471
0.278 0.471
0.280 0.521
0.280 0.241
0.0000.000
0.241
0.000 0.241
0.000
LEGEND
Cumulative Flow DRY WEATHER FLOW FLOW METERIncremental Flow WET WEATHER FLOW
LBLFB009
BR
IS
0.031
GOSM001S048-045
GOSM016S034-252
GOSM015S024-284
GOSM013S050-400
GOSM014S033-839
GOSM010S034-049
GOSM011S034-048
GOSM017S024-092
GOSM009S034-063
GOSM005S025-063
GOSM006S035-104
GOSM004S025-194
GOSM002S024-109
GOSM012S034-188
GOSM008S035-166
GOSM003S024-037
GOSM007S034-342
Bubble Bubble DiagramDiagram
N 21.5685%
3.805
25.4 15%25.37
2.53740%
6.341.332 6.3421%
39% 2.4740.36421% 1.73
0.034 1.50% 1.73 0.67639%
21% 0.0000.056 12.685
2.24 2.50% 25.37 50%0.694 40% 2.24 18.08
0.2241.928 10%86% 0.000
0.000 39%40%
0.00-1.06
5% 1.0620.000100%
0.82 21.240.82 21.24
95%0.817 20.176 0.00100% -2.53
1.32810%
13.28-7.72 0.838
9%11.949
90%0.135 0.279
1.35 10% 9.31 3%1.35 9.31
1.219 8.006 86%90%
0.1865.158 2%
12.69-14.62 0.971
100% 3.6780.97
0.9712.688100%
5%
0.850.85
0.852
4.838 95%12.685
1.730
LEGEND
DRY WEATHER FLOW FLOW METER Cumulative FlowWET WEATHER FLOW Incremental Flow
5.09
3.683.42
5.09
32.978
LBLFB008
LBLFB009
BR
IS
0.255
GOSM001S048-045
GOSM016S034-252
GOSM015S024-284
GOSM013S050-400
GOSM014S033-839
GOSM010S034-049
GOSM011S034-048
GOSM017S024-092
GOSM009S034-063
GOSM005S025-063
GOSM006S035-104
GOSM004S025-194
GOSM002S024-109
GOSM012S034-188
GOSM008S035-166
GOSM003S024-037
GOSM007S034-342
TO LBLFB009
TO GOSM006
How does the flow REALLY go?
50
Data AnalysisData AnalysisADDF and InfiltrationADDF and Infiltration
0.000
0.200
0.400
0.600
0.800
1.000
1.200
1.400
1.600
1.800
2.000
00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Time of Day (hours)
Flow
(MG
D)
DW/HG DW/LG
Data AnalysisData AnalysisKC Metro Rainfall Data (Dr. McEnroe's Report)
Rainfall History
0.01
0.10
1.00
10.00
10 100 1000
Duration (minutes)
Rai
nfal
l Int
ensi
ty (i
n/hr
)
0.25
0.5
1
2
5
10
25
50
100
51
Wet Weather Wet Weather Inflow Coefficients
Flow Projections
Volume Projections
3 Mo
6 Mo
1 Yr
5 Yr
10 Yr
25 Yr
0.20
5.20
10.20
15.20
20.20
25.20
0.00 0.50 1.00 1.50 2.00 2.50
Rainfall Intensity, in/hr
Inflo
w, m
gd
Capacity Projected Inflow Inflow Peak Flow 3 Mo6 Mo 1 Yr 5 Yr 10 Yr 25 Yr
Data AnalysisData Analysis
0
5
10
15
20
25
0 12 24 36 48
Time, hrs
Flow
Rat
e, m
gd
CapacityPeak Flow
52
Flow Comparison at Meter MC-WB-46TMarch 4,2001 vs. June 6, 2001
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
0:00
1:00
2:00
3:00
4:00
5:00
6:00
7:00
8:00
9:00
10:0
0
11:0
0
12:0
0
13:0
0
14:0
0
15:0
0
16:0
0
17:0
0
18:0
0
19:0
0
20:0
0
21:0
0
22:0
0
23:0
0
0:00
Time (hrs)
Flow
(mgd
)0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Rain (in/15 m
in)
Rainfall date: June 6, 2001 Rainfall volume = 0.36 inPeak intensity = 0.72 in/hrDuration = 0.50 hrRainfall in previous 7 days = 1.24 in
Rainfall date: March 4, 2001 Rainfall volume = 0.36 inPeak intensity = 0.16 in/hrDuration = 2.83 hrRainfall in previous 7 days = 0.00 in
June 6, 2001
March 4, 2001
Data AnalysisData Analysis
ConclusionsConclusions
Purpose of monitoring programUse of the dataLength of the monitoring periodLong term data needs
54
Q & A SessionQ & A Session
Stuart Bowns, Stuart Bowns, HydromaxHydromax USAUSAAbraham Araya, Ph.D., King Abraham Araya, Ph.D., King County/DNRP, Wastewater Treatment County/DNRP, Wastewater Treatment DivisionDivisionSusan E. Moisio, P.E., CH2M HILLSusan E. Moisio, P.E., CH2M HILLModeratorModerator: Jean : Jean VieuxVieux, , VieuxVieux, Inc., Inc.
Thank YouThank YouOur Distinguished Presenters Our Distinguished Presenters
WEF AND WEF Collections Systems CommitteeWEF AND WEF Collections Systems CommitteeTina Wolff, Malcolm PirnieTina Wolff, Malcolm PirnieRenee Kayal, WEFRenee Kayal, WEFChristine Handog, WEFChristine Handog, WEF
Site coordinatorsSite coordinators
AttendeesAttendees
See your site coordinator for Professional Development Hours (See your site coordinator for Professional Development Hours (PDHsPDHs).).
The next Collection Systems Committee sponsored webcast is on The next Collection Systems Committee sponsored webcast is on August 13, 2008, focusing on August 13, 2008, focusing on CMOMCMOM’’ss ReRe’’sewersewer”” reaction.reaction.
For more info on the WEFCSC and activities, please go to For more info on the WEFCSC and activities, please go to www.wef.orgwww.wef.org
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