CONDUIT INSPECTION REPORTING CODE
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1 WATER SERVICES ASSOCIATION OF AUSTRALIA CONDUIT INSPECTION REPORTING CODE OF AUSTRALIA WSA
2 Conduit Inspection Reporting Code of Australia WSA Third Edition Version 3.1 ORIGINATED AS AUSTRALIAN CONDUIT CONDITION EVALUATION MANUAL 1991 REVISED AND REDESIGNATED AS WSA SEWER INSPECTION REPORTING CODE OF AUSTRALIA REVISED AND RENAMED AS WSA VERSION 2.1 CONDUIT INSPECTION REPORTING CODE OF AUSTRALIA REPLACES WSA VERSION 2.2
3 WSA ACKNOWLEDGMENTS CONTENTS FOREWORD PREFACE CODE PURPOSE AND SCOPE MANDATORY AND INFORMATIVE APPENDICES INDUSTRY TRAINING AMENDMENTS SECTION 1 SCOPE AND GENERAL 1.1 SCOPE 1.2 DEFINITIONS Adjusting construction Asset Asset owner Benching Blister Breaking Breaking-Displaced Breaking-Missing Bulge Collapse Chamber Chamber unit Combined system Conduit Conduit unit Conduit unit length Connection Cracking Culvert Exfiltration Feature Finished surface level Gate slot Grade Gravity system Groundwater Infiltration Inflow Inspection length
4 3 WSA Inspection opening, IO Inspection shaft, IS Invert Joint Junction Landing Maintenance chamber, MC Maintenance hole, MH Maintenance shaft, MS Maintenance structure Masonry Node Operator Outfall Property connection fitting Property connection sewer Pressure main Receiving water Rehabilitation Renovation Repair Roots-Beard Sewage Sewer Sewerage Shaft Shear displacement Soffit Spalling Staging bars Subsoil drain Surface water Taper Terminal maintenance shaft, TMS T-seal or top hat liner Water Agency 1.3 REFERENCED DOCUMENTS 1.4 ABBREVIATIONS SECTION 2 REQUIREMENTS FOR THE CONDUCT OF INSPECTIONS 2.1 GENERAL 2.2 TRAINING AND ACCREDITATION OF PERSONNEL Operators Asset managers and contract managers 2.3 PLANNING THE INSPECTION
5 WSA PREPARATION OF CONDUITS AND MAINTENANCE STRUCTURES 2.5 CAMERA AND SCANNER General Capability Picture quality 2.6 CAMERA AND SCANNER OPERATION Position Speed 2.7 LINEAR MEASUREMENT 2.8 DATA DISPLAY DURING VIDEO PLAYBACK OR DIGITAL IMAGE ANALYSIS Conduits Maintenance structures 2.9 LASER PROFILING OF CONDUITS General Cleaning Water levels Camera position Speed limit Laser calibration 2.10 SONAR PROFILING OF CONDUITS General Cleaning Water levels Sonar position Speed limit Sonar calibration 2.11 MAXIMUM DEPTH OF FLOW 2.12 INSPECTION REPORT General Inspector s report Video record Photographs taken during camera inspection Video clips of camera inspection 2.13 PRELIMINARY GRADING OF INTERNAL CONDITION SECTION 3 INSPECTION OF CONDUITS THE DESCRIPTION AND ENCODING OF OBSERVATIONS 3.1 PURPOSE 3.2 METHODS OF INSPECTION 3.3 CONDUITS CODING SYSTEM 3.4 CONDUITS HEADER INFORMATION Recording of information Mandatory information Optional information
6 5 WSA Information to be provided by the asset owner 3.5 ENCODING OF OBSERVATIONS General Observation codes Main observation codes Sub-codes Characterisation sub-codes Quantification sub-codes Circumferential location Observation associated with a joint Longitudinal location Features within a specified length Continuous features Photograph reference Video location reference Video clips Specific remarks Logging procedures Defining location and direction of inspection Start of inspection Finish of inspection Inspection abandoned Inspection recommenced 3.6 CONDUIT HEADER CODES General Header codes to describe the location of the inspection Header codes for reporting inspection details Header codes for recording conduit details Header codes for recording miscellaneous information Change of codes for header information 3.7 CODES FOR REPORTING THE INSPECTION OF CONDUITS General Additional observations to be recorded Codes relating to the structural integrity of conduits Cracking C Breaking B Dropped invert DI Deformation D Collapsed conduit X Surface damage concrete SC Surface damage asbestos cement SAC Surface damage other SO Soil visible through defect SV Void visible through defect VV Porous conduits PP Codes specific to masonry conduits Displaced masonry units DMU Missing masonry units MMU Masonry unit separation MUS Masonry conduit collapsed XM Missing mortar MM
7 WSA Codes relating to the blockage and leakage of conduits Deposits on the wall and in the invert DE Exfiltration EX Infiltration I Obstruction OB Ingress of soil ING Roots R Codes relating to the performance of joints Displaced joint JD Defective seal joint JDS Defective joint weld JDW Codes relating to connections and junctions Connection CN Defective connection CX Junction JN Defective junction JX Codes relating to linings and repairs Lining defective LD Point repair PR Defective repair RX Codes relating to miscellaneous observations concerning the construction and performance of the conduit Atmosphere in the conduit GAS Flow in connecting conduit IF Water level WL Line of conduit deviates L Vermin V Miscellaneous codes relating to the administration of the inspection Start node ST Finish node FH General comment GC General photograph GP Loss of vision LOV Inspection (Survey) abandoned SA Codes for changing header information Change of lining LC Change of conduit material MC Change in conduit unit length PC Change of cross section SC Change in video volume reference TC SECTION 4 INSPECTION OF MAINTENANCE STRUCTURES THE DESCRIPTION AND ENCODING OF OBSERVATIONS 4.1 PURPOSE 4.2 METHODS OF INSPECTION 4.3 MAINTENANCE STRUCTURES CODING SYSTEM 4.4 MAINTENANCE STRUCTURES HEADER INFORMATION Recording of information Mandatory information Optional information
8 7 WSA Information to be provided by the asset owner 4.5 ENCODING OF OBSERVATIONS General Recording of information Main observation codes Sub-codes Characterisation sub-codes Quantification sub-codes Circumferential location Observation associated with a joint Descriptive location Vertical location Features at the same location Photograph reference Video location reference Video clips Specific remarks Logging procedures General Start of inspection Inspection abandoned 4.6 MAINTENANCE STRUCTURE HEADER CODES General Header codes to describe the location of the inspection Header codes for reporting inspection details Header codes for recording maintenance structure details Header codes for recording miscellaneous information 4.7 CODES FOR REPORTING THE INSPECTION OF MAINTENANCE STRUCTURES General Codes relating to structural integrity Cracking HC Breaking HB Deformation HD Collapsed structure HX Surface damage concrete HSC Surface damage other HSO Roots HR Codes specific to masonry structures Missing masonry units HMU Masonry unit separation HMS Missing mortar HMM Masonry maintenance structure collapsed HXM Codes relating to connections and their flows Connection type HCN Connecting conduit HCP Defective connection HCX Defective drop pipe HDP Flow in connecting conduit HIF Sealed conduit through maintenance structure HSP Codes relating to observations made above the benching
9 WSA Corrosion barrier layer defect HCB Defective cover and/or frame HCF Defective step, ladder or staging bar HSL Devices under cover or grate HGT Defective devices under cover or grate HGX Lifting hole HLH Defective lifting hole HLX Codes relating to joints and jointing Displaced joint HJD Codes relating to linings and repairs Defective lining or coating HLD Point repair or rehabilitation HPR Defective repair or rehabilitation HRX Codes relating to observations of the benching, channel and main flow Defective channel HCH Flow control HFC Defective flow control device HFX Safety bars and chains HSC Defective safety bars and chains HSX Silt trap in invert HTS Water level HWL Miscellaneous observations Atmosphere within the maintenance structure HGA Deposits HDE Exfiltration HEX General comment HGC General photograph HGP Infiltration HI Other obstacles HOB Vermin HV Miscellaneous codes relating to the administration of the inspection Start feature HST Inspection completed HFH Inspection (Survey) abandoned HAS Codes for changing header information during an inspection Change video volume reference HTC Change of material HMC TABLES 2.1 Maximum Depth Of Flow At Commencement Of Inspection 3.1 Values Of Clock Face References FIGURES 1.1 Illustration Of Typical MH Features 3.1 Examples Of Clock Face References 3.2 Reference Points For Longitudinal Location 4.1 Clock Face References In Shafts Of Maintenance Structures
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