Infrastructure Condition Assessment and Certification Programs (PACPMACP/LACP)

Transcription

1 Infrastructure Condition Assessment and Certification Programs (PACPMACP/LACP) By Marilyn Shepard, NASSCO Master Trainer 2012 and 2013 Trainer of the Year 1

2 Module Overview Introduction to NASSCO Background, Mission, Goals and Membership Founded in 1976, NASSCO is the National Association of Sewer Service Companies NASSCO is a non-for-profit corporation Serves all areas of pipeline maintenance and rehabilitation industry 2

3 Mission and Goal Mission: To set industry standards for the rehabilitation of underground infrastructure and to assure the continued acceptance and growth of trenchless technologies. Goals: To improve the success rate of everyone involved in the pipeline rehabilitation industry through education, technical resources, and industry advocacy. 3

4 Membership Membership Categories: Contractors Engineers Municipalities Academia Manufacturers Suppliers. Membership continues to grow Has doubled in the last five years More than 750 companies and members 90% of NASSCO Contractor Members providing TV Services are using PACP! 4

5 Membership 5

6 NASSCO Website 6

7 PACP LACP and MACP Training References (Manuals, quizzes, etc.) Recertification Information Certified Software and Software Testing Requirements Certified User List Inspector Training and Certification (ITCP) CIPP Inspector Training Manhole Rehabilitation Inspector Training Upcoming ITCP Programs Pipe Bursting 5 more! A total of 9 educational programs! 7

8 References Publications and Specs (Member Discounts Apply) TAG-R Jetter Manual Specification Guidelines Newly Updated Manual of Practice To be updated Inspector s Handbooks Performance Specification (Members Only) NASSCO Times (Members Only) NASSCO Pipeline (Members Only) NASSCO Tech Tips (Members Only) 8

9 Membership Application Access to valuable information Technical presentations Videos Resource library Scholarship information Performance specifications Free publications (when joining and renewing) Advertising in the NASSCO Times Network through online listings, referrals, classifieds, advertising, etc. Develop documents, guidelines and training that will shape the industry Application also on Website 9

10 PACP, MACP and LACP Certification Requires classroom instruction Includes manual and materials, and exam 10

11 PACP Recertification Options (fees are the same no matter which option is selected) 1. Classroom Instruction One day class Nine Modules Examination 2. PACP Class Two day PACP class, with new PACP students (Most preferred) 3. Online will be updated and allowed again upon NASSCO s release of V7.0, anticipated late

12 Resources Color Coded Charts Appendices Condition Grades (Appendix D) 12

13 Agenda Trainer: Marilyn Shepard, Master Trainer, Lic. # DAY #1 Objectives of the training course To provide the student a thorough indoctrination of the PACP coding procedures, codes and rules for their application and usage. Overview of Infrastructure Condition Assessment Use of Colored Code Sheet & related materials Introduction (Section 1 of Manual) Background to technical issues Overview of condition categorization Overview of Appendices and Code Matrix Standard CCTV Inspection Form - Header Section (Section 2 of Manual) Standard CCTV Inspection Form Details Section (Section 3 of Manual) DAY #2 Observation and Defect Coding Structural Defects Operational and Maintenance Defects Construction Features Miscellaneous Features Appendices Quick Rating System Use and Application Practice Coding & Use of Materials PACP Examination DAY 3 MACP and LACP class (5-6 hours including testing time) Introduction to Manhole Condition Assessment Component Description and Inspection Forms Manhole Observation and Defect Coding LACP Condition Assessment for Laterals & Connections (Approx. 2 hours) Testing 13

14 Manual Sections Section 1. Introduction and Need for Condition Categorization Section 2. CCTV Inspection Form Header Instructions, CCTV Inspection Form, CCTV Continuation Form Section 3. CCTV Inspection Form Details Instructions Section 4. Continuous Defect Coding Section 5. Structural Defect Coding Section 6. Operational and Maintenance Section 7. Construction Features Coding Section 8. Miscellaneous Features Coding 14

15 Sections and Appendices Section 9. MACP Section 10. LACP Appendix A. Listing of Codes in Code Order Appendix B. Listing of Codes in Description Order Appendix C. Color Coded Index Appendix D. PACP Condition Grading System 15

16 Reasons for Conducting A Condition The most basic information we need about the buried infrastructure is the condition of the pipes, manholes, and other related structures and appurtenances, from a Structural, O & M, and Dimensional perspective. Lack of standard information gathering and defect coding standards complicates the task of understanding our buried infrastructure. Standardizing codes and methods/procedures assures that all are working to the same scope. Allows for reliable information to be obtained. Benchmarking. Prioritization. Assessment Survey 16

17 We Need to Avoid Sewer Problems Finding Us! 17

18 Need for Condition Categorization Determine the condition of the pipeline through internal inspection, whether visual or using advanced tools. PACP was originally developed for sewer pipes only, but is applicable to all gravity and pressure piping systems. Utilize a standardized form for data collection to create a record. Compare with future inspections of the same pipe. Compare with other pipes to determine most critical. Create O & M schedules; Create CIP budgets; Define long range needs & develop plan of action. Visual Inspection: Can only be accomplished by actually looking at the pipe. Most surveys are conducted using this tool. Advanced Tools (interpretation of results is visual): Sonar, Laser Profiler, 3D & 4D Laser, Leak Detection, PPR, etc Used in partnership with CCTV for more detailed diagnostics. Not a replacement for CCTV. 18

19 Reasons for TV Inspection Maintenance related Infiltration and Inflow investigation Post rehabilitation survey Pre-rehabilitation survey Pre-acceptance (new sewers) Routine assessment (proactive maintenance) Capital Improvement Programs Resurvey for any reason Reversal due to inability to complete survey from one direction 19

20 Crack (C) Fracture (F) Broken (B) Hole (H) Deformed (D) Collapse (X) Structural Defects 13 groups, as follows: (These six defects define progressive degrees of pipe condition & failure) Joint (J) Surface Damage (S) Buckling (K) Lining Defect (LF) Weld Failure (WF) Point Repair (RP) Brickwork (B) 20

21 Progress of Pipe Deterioration & Failure CRACK FRACTURE BROKEN HOLE DEFORMATION COLLAPSE 21

22 Structural Defects (Cont.) Joint Displacement Codes Surface Damage Codes 22

23 Buckling (K): Flexible Pipes Flexible pipes are composite structures made up of the pipe ring and the surrounding soil. Flexible pipes have wall materials with a low modulus of elasticity. Some flex may be ok & usually non-fatal! Pipe Materials HDPE PVC Aluminum CMP Steel CMP Flexible Ductile Iron Pipe Reinforced Concrete Non-reinforced concrete Rigid Clay Pipe 23

24 Lining Feature Descriptors Lining detached (LFD) Defective end (LFDE) Blistered (LFB) Service cut shifted (LFCS) Abandoned connection (LFAC) Bulges (LFBU) Resin Slug (LFRS) Pinholes (LFPH) Overcut service (LFOC) Undercut service (LFUC) Buckled (LFBK) Wrinkled (LFW) Other (LFZ) Delamination (LFDL) Discoloration (LFDC) Annular Space (LFAS) 24

25 Structural Defects, (Cont.) Weld Failure (WF) Point Repair (RP) 25

26 Brickwork (B) 26

27 Operational and Maintenance Six groups: Deposits (D) Roots (R) Infiltration (I) Obstacles (OB) Vermin (V) Test and Grout (G) 27

28 Deposits 28

29 Roots 29

30 Infiltration (I) Definition The ingress of groundwater through: a joint; a defect; or, a porous area of pipe wall. 30

31 Obstacles /Obstructions (OB) This group of codes are used to record the presence of large and medium sized obstacles that are likely to cause a serious obstruction to flow and reduction in hydraulic capacity. The reduction in cross-sectional area should be expressed as a percentage (to the nearest 5%) in the Value - % field. 31

32 Vermin 32

33 Grout Test & Seal (G) 33

34 Construction Features Four groups: Tap (T) Intruding Sealing Material (IS) Line (L) Access points (A) 34

35 Tap (T) Definition This group is used to describe the various kinds of connections / junctions into a sewer/pipeline 35

36 Intruding Sealant Material Includes All Types of Sealant Materials Used to Seal Joints Between Pipe Sections 36

37 Line (L) Definition This group of codes are used to describe a visible direction change in the pipeline. These codes are usually associated with brick sewers and with bends in service pipes. 37

38 Access Points (A) Definition Access points, usually manholes in sewer systems, will be the start and finish point of a complete survey. When access points have a reference number, and it is known, the full number should be given in the Remarks field. Not limited to manholes! 38

39 Access Point: Manhole (AMH) A man-entry structure designed to provide access to the pipes for maintenance and inspection. 39

40 Other Access Points Wastewater Access (AWA) Discharge Point (ADP) Tee Connection (ATC) Other Special Chamber (AOC) Meter (AM) Wet Well (AWW) Junction Box (AJB) Clean Out (ACO) Catch Basin (ACB) End of Pipe (AEP) 40

41 Miscellaneous (M) This group of codes are used to record features not included in the other groupings. Descriptors Camera underwater (MCU) General observation (MGO) General photograph (MGP) Shape change (MSC) Pipe Joint length change (MJL) 41

42 Descriptors (Cont d) Lining change (MLC) Material change (MMC) Survey abandoned (MSA) Water Level (MWL) Water Mark (MWM) Dye test (MY) 42

43 PACP Version 7.0 Release Date May 1, 2015 Unprecedented Review Technical Updated User Friendly Formatting New Appendices include Shapes, Material Descriptions and examples, and Asset Management for Engineers. 43

44 Technical Update More User Friendly and Informative Describes Supplemental Technologies Includes Backgrounds to Technical Issues, i.e. Deterioration Mechanisms and Stages of Sewer Collapse

45 Technical Update More Robust and Informative Header Form No Data Loss from v to v Custom Fields Used for Specific Needs All Fields May Be Mandatory if Required Allows More Information on Existing Database

46 Technical Update More Robust and Informative Header Form 9 Redefined Fields and New Options New Material Options Weather Consequence of Failure (CoF)

47 Technical Update More Robust and Informative Header Form 5 New Fields Reviewed By and Certificate Number Coating Vertical Datum Lining Method Inspection Technology Used

48 Technical Update Addition of Infiltration Codes Modifiers Barrel Lateral Connection Joint

49 Technical Update If ANY Defect can be Seen in a Lateral, it is Coded as Defective Tap Code Modifiers Prioritized and additional observations included in Remarks: Defective Intruding Capped Activity Abandoned

50 Technical Update Level 1 MACP Simplified - Mandatory Requirements were Reduced in 31 Fields! 13 New Fields and 4 New Component Fields were Added

51 Technical Update New LACP Access Codes Access Lateral Trap (ALT) Access Roof Vent (ARV) Access Backflow Preventer (ABP)

52 Technical Update Additional Condition Grades Stormwater Dam and Levee Pipes

53 Educational Benefit Training Material Follows Manual More Closely Clarifies Rules for Continuous Defects Provides Example for Overlapping Continuous Defects for Improved and More Accurate Coding

54 Educational Benefit Moved Buckling Code into Deformed Modifier Clarifies Buckling Occurrence Allows for Deformation Percent New Codes for Surface Damage to Provide More Detailed Options Surface Spalling of the Coating Corrosion Tuberculation

55 Educational Benefit New Appendix to Help Field Personnel to Identify Pipe Materials

56 User Friendly Format Manual More Easily Updated The New Color Codes Chart for Header Codes Facilitates Populating the Fields The Manhole Measurement Diagram Eliminates any Second Guessing about what Component is Being Measured

57 Asset Management New Appendix Describes Asset Management Using PACP to Define Likelihood of Failure (LoF) Consequence of Failure (CoF) Risk

58 We re Done? Inspection is completed Now What? Determine overall pipe condition Define pipe criticality Target problems/problem areas How Do We Do The Above? 58

59 Condition Grading System Approach Each PACP defect code is assigned a condition grade from 1 to 5 based on severity of the defect, amount of missing wall, amount of obstruction or blockage, expectation of further deterioration, anticipation of failure based on historical information from WRc, Trenchless Technology Center, VA Tech, Purdue Univ. and more. Grades are assigned for all 4 families of PACP defects Errors in the coding will directly result in errors in the grading!! The fact that a segment has a significant grade 4 or 5 does not necessarily mean immediate rehabilitation. But it does mean there are defects severe enough they need immediate attention or reassessment to determine what to do, if anything. 59

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61 Based on the number of occurrences for each condition grade Ratings calculated separately for Structural and O&M defects Different methods of expressing pipe segment condition: PACP Quick Rating Segment Grade Scores Overall Pipe Rating Pipe Ratings Pipe Ratings Index 61

62 PACP Quick Rating A shorthand way of expressing the number of occurrences for the two highest severity grades A four character score: Highest severity grade Total number of occurrences of highest severity grade Next highest severity grade Total number of occurrences of second highest severity grade 62

63 Segment Grade Scores Multiply the number of defects in each grade by their grade score {(Occurrences) per grade x Grade Score} = Segment Grade Score Example A pipe has these defects for structural rating: 6 defects, grade 5 2 defects, grade 3 4 defects, grade 2 Segment Grade Scores are: 6x5 30 0x4 0 2x3 6 4x2 8 0x1 0 for grade 5 for grade 4 for grade 3 for grade 2 for grade 1 If a pipe segment has no defects for a particular grade, the Segment Grade Score for that grade is 0 Calculated separately for both Structural and O&M ratings 63

64 Overall Pipe Rating The five Structural Segment Grade Scores are added together to calculate the Overall Structural Pipe Rating From previous example we have for Structural rating: 6x5 0x4 2x3 4x2 0x1 44 The five O&M Segment Grade Scores are added together to calculate the Overall O&M Pipe Rating Assuming the following for O&M rating: 0x5 0x4 5x3 0x2 0x

65 Pipe Ratings Index Indicator of the distribution of defect severity Calculated by dividing the Overall Pipe Rating by the number of defects Calculated separately for Structural and O&M defect grades Example: Overall # defects structural structural Overall # defects O& M O& M 65

66 Issue: Which sewers should be Renewed first? Most severe defects, worst condition Subjected to deterioration mechanisms High Consequence of Failure 66

67 The Future of PACP Version 7.0 to be released in 2015: Reasons for updates New technologies into the industry More detailed condition information available Clarification of some ambiguous codes Changes will include: Updated manual New Appendices Updates to Color Coded Sheets Will include LACP Fitting and Access Point codes; MACP Condition Values Added Addition of instructions for using PACP to record results for advanced inspection/survey technologies such as side scanning CCTV equipment, laser profilers, sonar, 3D & 4D laser, and other tools such as PPR and Leak Detection. Goal: No new releases necessary for five (5) years 67

68 Training My Classes are scheduled based on inquiries from YOU! I am happy to conduct a training class at YOUR facility Certification is issued by NASSCO Financial assistance may be available (NASSCO offers scholarships!!!) CEU s are available PDH s are available, and issued by the State For class information or registration please contact me: Marilyn Shepard, Master Trainer Mshepard1@hotmail.com 68

69 Questions? 69