Short Course PACP/MACP - Ohio Water Environment Association

Manhole Assessment
Pipeline Assessment and Certification Program (PACP)
&
Manhole Assessment Certification Program (MACP)
Ted DeBoda, PE
NASSCO Executive Director
Outline
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


NASSCO
Defects and Observations
Inspection and Defect Coding
Deliverables
Rehabilitation
Introduction to NASSCO
Background

4
The National Association of Sewer
Service Companies (NASSCO) is a
not-for-profit corporation serving all
areas of the pipeline assessment
and rehabilitation industry since
1976
Introduction to NASSCO
Mission
NASSCO, the National Association of
Sewer Service Companies, is
committed to setting industry
standards for the assessment and
rehabilitation of underground
pipelines, and to assure the continued
acceptance and growth of trenchless
technologies.
6
Introduction to NASSCO
Membership
• Membership Categories
– Contractor
– Associate (Manufacturers/Suppliers)
– Professional (Engineers/Consultants)
– Public Agencies
• Membership continues to grow (doubled in the last 5
years)
• Nearly 400 member organizations
7
Background of Industry
Standardization
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Industry in US had no standards
NASSCO led effort to develop
Based on Water Research Centre codes
– Many years of use in UK
– WRc providing consulting services to NASSCO
Standardization includes multiple software options,
multiple contractors, industry acceptance,
standardized training, and technical support
– Standardization concept more important than the
benefits of one code system compared to another
8
Delaware DOT Pipe Inspection Manual
1
2
Learning
Standardized
Crack and Fracture
Crack = not open
Fracture = visibly open
CCTV camera is tilted
120.3
120.3
JO
FS
M
J
03
08
108.6
RBJ
55
J
08
04
111.3
B
J
09
03
9.2
OBR
S01
20
04
08
30.4
30.4
RFB
FL
J
11
11
Manhole Component
Observations Form
Manhole Component
Observations Form
Manhole
Component
Observations
Form
Manhole
Component
Defect
Form
Manhole
Component
Observations
Form
Manhole
Component
Defect
Form
Manhole
Component
Observations
Form
Manhole
Component
Observations
Form
Manhole
Component
Defect
Form
Corroded
10.6
Note:
When the frame is
missing, other fields
related to the frame
are optional
Missing
Fractured
1
0.4
0.4
CMI
CMI
MB
MML
L
12
12
12
12
8.4
WI
RFB
12
12
0.5
1.2
1.9
CMI
COI
WI
IR
IR
IR
S01
S
S
10
10
10
03
03
03
2
10.4
WI
SRC
12
12
9.4
9.4
WI
WI
MB
RFB
05
05
07
07
6.2
6.3
WI
B
RBB
RBB
J
J
05
05
11
11
0.4
0.4
CMI
CMI
MB
MML
L
12
12
12
12
1
1
10.4
WI
SRC
12
12
2
1
1
.
.
.
.
1
111.3
B
J
09
03
2
2
2
.
.
.
.
2
http://maps.dublin.oh.us/dubscovery/
Manhole Rehab
Recommendations
 Frame and Cover Replacement
1
 Frame Adjustment
 Mechanical Seal
 Liner
or
or
Manhole Rehab
Recommendations
2
 Cured-in-Place Liner
 Replacement
Reference PACP Manhole Specification
Guidelines
or
More Information?
Ted DeBoda, P.E.
NASSCO
Executive Director
[email protected]
(410) 486-3500
RECENT CHANGES TO
NASSCO PACP
4.4.3 to 6.0.1
Overview of PACP Coding Changes
• Hinge Defects (Ver. 4.43)
– CH2, CH3, CH4
– FH2, FH3, FH4
• Lining Features (Ver. 4.43)
–
–
–
–
–
–
LFAS – Annular Space
LFBU – Bulges
LFDC – Discoloration
LFDL – Delamination
LFRS – Resin Slug
LFPH – Pinholes
• Buckling Code (K) (Ver. 6.0)
– KW – Buckling Wall
– KD – Buckling Dimpling
– KI – Buckling Inverse Curvature
Hinge Defects
• When more than one longitudinal crack (CL)
and/or fracture (FL) occur at the same footage
• These defects should be parallel and not intersect
• These defects are seen at 12, 06 & 03, 09 o’clock
positions
Lining Features (LF)
• LFAS – Annular Space
– The liner does not closely fit against the host pipe
– A gap between the liner and the host pipe is visible
• LFBU – Bulges
– The host pipe contains intruding defects (broken pipe,
taps) that bulge the liner
• LFDC – Discoloration
– Liner with abnormal coloration
Buckling (K)
• Refer to deformations and other defects without
loss of visible structural integrity in flexible pipes
• Plastic, pitch fiber pipes, metal, etc.
• Flexible pipes are expected to deflect to allow
pipe interaction with soil. However, excessive
deflection and other surface damages are signs of
structural distress
Buckling Wall (KW)
Code
Distance
(feet)
25.8
Video
Ref
Group /
Descrip
KW
Modifier /
severity
Continuous
defect
Value
Joint
S/M/
L
Inches
1st
2nd
%
Circumferential
location
At /
from
To
08
03
Buckling – Dimpling (KD)
Code
Distance
(feet)
7.5
Video
Ref
Group /
Descrip
KD
Modifier /
severity
Continuous
defect
Value
Joint
S/M/
L
Inches
1st
2nd
%
Circumferential
location
At /
from
04
To
Buckling – Inverse Curvature (KI)
Code
Distance
(feet)
1.2
Video
Ref
Group /
Descrip
KI
Modifier /
severity
Continuous
defect
Value
Joint
S/M/
L
Inches
1st
2nd
Circumferential
location
%
At /
from
10
12
To
Other PACP Changes
• Measurements of defects less than 3 feet (1 m)
may be added to the value-inches column
• Digital measurements allowed to 3 decimal points
• Deformed Vertical and Horizontal can refer to
other than brick sewers.
PACP Version 6.0 Training
Changes
• Syllabus change – 2 full days
• Additional video and training material
MACP® Version 6.0 Content Changes
• Two Levels of Inspection
– Level 1
• Basic condition assessment information
• Determines if Level 2 inspection
necessary
– Level 2
• Fully document defects
• Specific Information to recommend
corrective actions
MACP® Version 6.0 Content Changes
MACP® Version 6.0 Content Changes
• Additional Training Materials
– More component details
– Specific measurement graphics
MACP® Version 6.0 Content Changes
• Manhole Component Defect Form (for
Level 2 Inspections)
– Similar to PACP® CCTV Inspection Form
– Includes two additional columns
• Component
• Step
MACP® Version 6.0 Training Changes
• PACP is STILL a Prerequisite
• New Syllabus – 4.5 to 5 hours
LACP® Version 6.0
• New in PACP® 4.3
• Very similar to PACP®
• Emphasis on
– Types of Lateral Inspections and Lateral
configurations
– New Fittings and Access Codes
PACP®, MACP®, and LACP®
Upcoming Changes
• User Recertification
– 3 year certifications
– Recertification Training being
developed
• Trainer Recertification
– No automatic recertification
– New Application Process
– New Training Syllabus
More Information?
Ted DeBoda, P.E.
NASSCO
Executive Director
[email protected]
(410) 486-3500