NASSCO LACP Codes for Condition Assessment
Transcript of NASSCO LACP Codes for Condition Assessment
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NASSCO LACP Codes for Condition Assessment
Jerry WeimerJerry Weimer ConsultingNASSCO Technical Advisory Council
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NASSCO
Founded 1976 National Association of Sewer Service Companies
Serves all areas of pipeline assessment, maintenance and rehabilitation industry
PACP was established in 2002 with WRc to provide standardization and consistency to the way we evaluate our underground infrastructure
LACP is based on PACP
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LACP
Lateral Assessment Certification Program
Standards for the inspection of Laterals
• Why is Standardization Important?
Codes to identify differing Defects and
Features
Scoring of Lateral Defects and Segments
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Responsibilities (Ownership)What is a Lateral or Building Sewer
• Mainline
• Connection
• Property Line
• House
How far?
• Economic
• Social
• Administrative
Benefits of doing more
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Codes
STRUCTURALOPERATIONS AND MAINTENANCE
CONSTRUCTION MISCELLANEOUS
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STRUCTURAL• JOINT
• SURFACE DAMAGE
• LINING FEATURES
• WELD FAILURE
• POINT REPAIR
• BRICKWORK
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OPERATIONS AND MAINTENANCE• Deposits (D)
• Roots (R)
• Infiltration (I)
• Obstacles/Obstructions (OB)
• Vermin (V)
• Testing and Grouting (G)
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CONSTRUCTION FEATURES Taps
Intruding Sealing Material
Line
Access Points
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Miscellaneous
SAGSIZE CHANGE
DYE TEST
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SCORING• 1-5 scale
• 5 – Most significant defect grade
• Deformed/Collapsed, Infiltration Gusher, Roots Ball Barrell
• 4 – Significant defect grade
• Broken, Infiltration Runner, Roots Ball
• 3 – Moderate defect grade
• Crack Multiple, Infiltration Dripper, Roots Medium
• 2 – Minor to moderate defect grade
• Crack Longitudinal, Infiltration Weeper, Roots Tap
• 1 – Minor defect grade
• Crack Circumferential, Roots Fine
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LACP vs PACP Differences
Codes
• Fittings
• Access points
Inspection Methods
• Tractors
• Side Scan
• Zoom Camera
• Push Camera
• Launch Camera
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Late
rals
The same as Main Line Sewers
Additional Fittings
Additional Access Points
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Fittings
• Bends
• Tees
• Risers
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Access Points
• Wyes
• Double Wyes
• Mainline
• Lateral Trap
• Roof Vent
• Backflow Preventer
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Rehabilitation
Replace
Repair
Grout
Line
Pipe Burst
Chemical Root Control
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Questions?
• JERRY WEIMER
• JERRY WEIMER CONSULTING
• 513-659-5008