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Flow Monitoring & GIS
Building Blocks for Collection
System Solutions
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Introductions
Thomas Romza E.I.
3.5 Years with RJN GroupDesign Engineer
Meter Specialist/Analyst
Dennis Gilbertson, GISP
GIS Project Manager
18 Years GIS Experience
Specialties: Local Government ,
Asset Management, GIS Databases,
and Mobile Applications
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Prepared By
Dennis Gilbertson, GISP
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Building Blocks for Collection System
Solutions
Types of Data used in GIS Workflow
Using GIS in Flow Monitoring
Refining Data through Additional Inspections
GIS Quality Control
Conversion of GIS Data for Hydraulic Model
GIS
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Building Blocks for Collection System
Solutions
GIS Data Sources
Client GIS Data
CAD Files
As-Built Drawings
Spreadsheets
Personal Databases
Age of Construction
Land Parcels / Census Data
Sub-centimeter Surveys
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Building Blocks for Collection System
Solutions
Whats the Role of GIS in Flow Monitoring?
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Building Blocks for Collection System
Solutions
Flow Monitoring relies upon GIS
Spatial Data provides a representation to
decide Flow Monitor placement
Basin Creation
Equal Area
Similar Linear Feet of Collection Mains
Other Unique Characteristics
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Building Blocks for Collection System
Solutions
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Building Blocks for Collection System
Solutions
SSES Focus Area is Determined
Smoke Testing
Manhole & Pipe Inspections
Dye Flooded Testing
TV InspectionsBuilding Inspections
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Building Blocks for Collection System
Solutions
Field Testing & Inspections
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Building Blocks for Collection System
Solutions
Quality Control offers Quality Assurancesfor the Hydraulic Model
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GIS Assembles Data for Hydraulic Modeling
FlowMonitoring
FieldTesting &Inspections
QualityControl
Model
Where?What Data?
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Structure Fields
Points
Pipe Fields
Lines
Catchment Fields
Polygons
Required X coordinate
Y coordinate
Upstream node
Downstream node
Area
Standard Rim elevation
Invert elevationStructure diameter
Bolted lids
Shape
LengthPipe diameter
Upstream invert
Downstream invert
Material / roughness
Outflow node
Ground slopeImperviousness
Meter basin
Wastewater load
Other TIN elevation
Trough condition
Inlet capacity
Ponding condition
Silt depth Parcel count
GIS Assembles Data for Hydraulic Modeling
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GIS Assembles Data for Hydraulic Modeling
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Building Blocks for Collection System
Solutions
GIS Assembles Data for Hydraulic Modeling
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Building Blocks for Collection System
Solutions
GIS Displays Hydraulic Model Results
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Building Blocks for Collection System
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So What?You may know the what, but do you know the WHERE?
WHERE are the locations of Defects?
WHERE are the sources of I/I?WHERE are the optimal locations for Flow
Monitoring?
WHERE are the Residents with Flooding?
WHERE in your Collections System will Peaking Factor
be an issue?
WHERE are the Back Pitch Sewers?WHERE can a Hydraulic Model focus attention?
WHERE should a CIP program be focused?
WHERE WILL YOU BE WHEN THE NEXT MAJOR
STORM EVENT OCCURS?
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Flow Monitoring & GIS
Building Blocks for Collection System
Solutions
