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St l Pi ISt l Pi ISteel Pipe IssuesSteel Pipe Issues
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Pipe Storage & Handlingp g g
Pipe not stored properly at job sites to Pipe not stored properly at job sites to protect coating.
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Pipe Storage & Handlingp g g
Pipe not transported to job sites Pipe not transported to job sites properly to protect coating from damage.
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Pipe Storage & Handlingp g g
Pipe roughly handled due to available Pipe roughly handled due to available lifting equipment.
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Construction Inspectionp
Some Companies do not use inspectors.p p
Some Companies utilize contract inspectors to oversee construction inspectors to oversee construction projects. Not always inspecting as thoroughly as required.
Some Companies utilize their own personnel to work as inspectors Not personnel to work as inspectors. Not always properly trained, equipped, or at each job site.
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Issues with Inspectorsp
Multiple jobs to inspect on any Multiple jobs to inspect on any given day seems to be the rule.
Lack of training pertaining to Api Lack of training pertaining to Api-1104 and company welding procedures being utilized procedures being utilized.
Not cognizant of the welding lifi ti f th ld t th qualifications of the welders at the
job site.
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Inspector Issuesp
►No depth gauge to measure mill ►No depth gauge to measure mill thickness of coating.
►Lack of understanding on proper ►Lack of understanding on proper calibration, grounding, and appropriate settings for jeepingappropriate settings for jeeping.
►No Tong Meter, Stop Watch, or T t P b f it i Temperature Probe for monitoring welding passes.
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Inspector issuesp
►Fails to visually inspect weld area for ►Fails to visually inspect weld area for quality of weld, arc burns, and weld splatter onto coated pipe.
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Inspector issuesp
►Fails to visually inspect quality of ►Fails to visually inspect quality of applied coating for cathodic protection.protection.
►Inadequate record keeping.
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Welding Issuesg
►Failure to verify welder ►Failure to verify welder qualifications.
►Failure to follow company approved ►Failure to follow company approved welding procedure.Pi d t h ld ►Pipe moved to change weld gap tolerance.
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Welding Issuesg
►Line up clamps not always used.►Line up clamps not always used.►Line up clamps removed prior to 50%
root bead
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Welding Issuesg
►Improper welding rod use.►Improper welding rod use.►Time between root pass and hot
pass not verifiedpass not verified.►Failure to pre-heat if procedure
ll f itcalls for it►Welder & Inspector fail to visually
inspect completed weld.
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Welding Issuesg
►Welding rods not stored properly►Welding rods not stored properly
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Welding Issuesg
►If pre-heat is done checking ►If pre heat is done checking temperature with a temp stick not always done.y
►Welders & Inspectors do not have tong meter to verify voltage and g y gamperage settings.
►Improper cleaning of root pass.►Weld area not shielded from
weather conditions.
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Welding Issuesg
►Not properly reviewing non-►Not properly reviewing nondestructive testing (x-ray)
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Failure to perform a weld in accordance with Failure to perform a weld in accordance with Operator’s Welding Procedure Operator’s Welding Procedure Operator’s Welding Procedure Operator’s Welding Procedure
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Coating Issuesg
►Jeeping procedures not at job site.►Jeeping procedures not at job site.►Jeeps not calibrated properly
A dj t t ld t l ►Area adjacent to weld not properly prepared for coating procedure.
►Fittings not properly coated.►Coating thickness gauges not being g g g g
utilized.
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Coating Issuesg►Coating not properly applied to piping
and fittingsand fittings
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Coating Issuesg
►Bubbles in tape coating not detected.►Bubbles in tape coating not detected.►Voids in epoxy coatings not detected.
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Failure to inspect the pipe coating Failure to inspect the pipe coating just prior to lowering into ditch and just prior to lowering into ditch and j p gj p g
backfilling.backfilling.
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C t ti / P d l C t ti / P d l Construction / Procedural Construction / Procedural IssuesIssuesIssuesIssues
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Failure to install a main with enough clearance Failure to install a main with enough clearance from any other underground structure to allow from any other underground structure to allow
proper maintenance and to protect against proper maintenance and to protect against proper maintenance and to protect against proper maintenance and to protect against damage that might result from proximity to other damage that might result from proximity to other
structures.structures.
Electric LineSewer LineSewer Line
2” Plastic Gas Main
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Failure to construct a main in accordance Failure to construct a main in accordance with comprehensive written with comprehensive written pp
specifications.specifications.
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Failure to install an anode in Failure to install an anode in accordance with proceduresaccordance with proceduresaccordance with procedures.accordance with procedures.
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Failure to install a main with at least Failure to install a main with at least 24 inches of cover24 inches of cover24 inches of cover.24 inches of cover.
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Proper Bolting Procedures t b i dh d tnot being adhered to
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Procedure Issues
►Pipe rough handled into ditch.►Pipe rough handled into ditch.►Inadequate padding of pipe.
I f R k Shi ld►Improper use of Rock Shields.►Improper pigging and purging
procedures.
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Procedural Issues
►Failure to ground pipe in gaseous g p p gatmospheres.
►Not following proper torque i t i i t ll ti f b ltrequirements in installation of bolts.
►Unqualified personnel making hot taps, welding purging etcwelding, purging, etc...
►Pressure Testing, documentation issues, offsets not documented, faulty gauges., y g g
►Not properly disposing of asbestos coatings.
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Potential Issues
►Items listed above were only those ►Items listed above were only those witnessed by State Inspectors.
►Lack of oversight in areas of new ►Lack of oversight in areas of new construction will lead to DIMP issues in the futureissues in the future.
►Strong consideration should be i t OQ i t f given to OQ requirements for new
construction.
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The End