Marathon Petroleum · Garyville, LA
Marathon Refinery — Unit 10 Revamp
Revamp of crude unit 10 with new charge pumps and upgraded ICSS.
Systems
3
Subsystems
6
Open A
2
Open B
1
MC83%
RFSU53%
Comm.37%
Handover8%
Learn: Punch List
Tap a topic — Why · How · What · Drivers. Hover any abbreviation for its meaning.
Category A
2/2
Blocks MC / RFSU
A
Category B
1/1
Blocks Operations
B
Category C
1/1
Cosmetic / minor
C
A
Missing flange gasket P-1001A discharge
Piping·10-PUM·Site Piping·raised 4 months ago·due 1/18/2026
B
IA dryer outlet PT not calibrated
Instrumentation·20-IA·Vendor Atlas·raised 4 months ago
C
Touch-up paint on K-2001B base frame
Mechanical·20-IA·raised 4 months ago
A
F&G loop FG-10-23 fails C&E test
Fire & Gas·70-ICSS·raised 4 months ago·due 1/16/2026
All changes saved
Why this matters
A-punches block Mechanical Completion or RFSU — safety, integrity, and code-compliance issues. B-punches must be cleared before Operations Acceptance. C-punches are cosmetic and tracked through the warranty period.
Common field problems
A-punches re-categorised to B to make milestones look better; punches raised without traceable tag/loop reference; no aging report so old items hide; vendor punches not segregated.
Best practice
Walkdown teams own A/B classification — not project controls; every punch references a tag or weld; review aging weekly; use punch dashboards to drive turnover go/no-go meetings; never RFSU with open A-punches.