HO Walkdown

1. QA/QC
2023. 08.
[VP1] KVPS H/O Walkdown Punch Control Procedure
1. KVPS H/O Walkdown Procedure
2. Major Issues and Countermeasures

2. 1. KVPS H/O Walkdown & Punch Control Procedure(1/3)
1. H/O WD is performed to reduce all problems as much as possible with Civil/Arch. structures .
This is the final H/O walkdown before issuing VPCL/KVPS Handover Certificate.
Detailed procedures are as follows
2. Walkdown schedule is fixed, NOI issue should be made 3 working days before and The supporting document
must be submitted 2 day before the WD .
3. KVPS will provide punch list(Site observation punch) in advance of the walkdown. All punches(site
observation & HO wd) should be closed before the HOC signing. If it is difficult to close before COD #1(5th
of Sep.), the detail reason must be recorded and submitted to the Client. Some long pending punches can
be transferred to commissioning punch.

3. 1. KVPS H/O Walkdown & Punch Control Procedure(2/3)
4. At the EPC meeting, KVPS said that they would not release design punches as much as possible, But If
KVPS engineer issued the design relevant punches during WD, DHI attended engineer have to explain and
try to cancel this punches(refer to below)
Despite the above efforts, the punch related to design & safety will be marked in the remark column and the
correct
action will be determined by separate discussion between VPCL and KVPS.
5. The engineer in charge of Quality/Civil/Architect of Doosan must attend HO WD and check the entire process.
At the end of WD stage, the engineer in charge of Quality/Civil/Architect participation designated the
punch
details and assign to the corresponding team.
6. In case of other LOT’s punch, the Quality team follow up continuously with other Lot’s.
After finished HO WD, The punch list should be created by QA/QC engineer in charge and shared to
relevant
parts within 3 days. Civil / Arch Engineers are requested to response to QA/QC Engineer in charge for
Punch confirmation within 1 day. All punches should be closed according to the No.3 above clause.

4. 1. KVPS H/O Walkdown & Punch Control Procedure(1/3)
7. The HO WD form uses the following format. It will be combined for all KVPS punch list used IECC punch list
format for easy handling. (HO WD punch list will be managed in two forms for easy to handling and
understand)
8. HO punch list will be combined with IECC master punch list and this should be shared with all relevant parts
by daily basis.
9. After finished punch closed action, Action part have to submit their improvement photo to
QA/QC team. QA/QC engineer will combine according to building base punch list and submit to
CL by email for coordination with other Lots (if have). If there are no additional comment from
VPCL/KVPS, We can consider that the punch has been closed.

5. 2. Major Issues and Countermeasures
Relevant Patrs
Major Issues Countermeasures
• It difficult to understand because of poor
contents(Description, team assignment,
close period)
1. HO Walkdown Punch
• When performing Walk Down, QA/QC, Civil,
Architect engineer must attend and review the
punch details
• Sub-con.
QA/QC, Civil,
Archi.
• WD punch list delayed to share with
relevant team after carry out WD
• Share the list within 3 day after walk down
finished.
• QA/QC,
Subcon.
• WD punch list delayed due to no
response from Civil / Arch
• Civil / Arch Engineer to response to QA/QC
Engineer in charge within 1 day.
• Sub-con, Civil,
Archi
• Punch Close • Sub-con. and construction engineer will sign
the completed each punch item. QA/QC
engineer have to check sign the entire punch
list.
• Sub-con.
QA/QC, Civil,
Archi.
• Combined with IECC master punch list • HO WD punch list will be combined with IECC
master punch format and this should be
submitted to all relevant parts by every day
• -> To be consider
• QA/QC.