Inspection - Drainage.DOC

Inspection Checklist – Drainage
BCA T-30t
Ver: 2
Date: 22/07/2010
Address:
Building Consent No.:
Tradesperson:
Tradesperson:
Reg.No.: Contact Details: Reg. No.: Contact Details:
Date:
Time:
Item to be inspected for compliance:
with the Building Act 2004,
NZBC & Approved Documents
G12, G13, G14 & AS/NZS 3500.2.2:2003,
AS/NZS 1546.1:1998
Conditions of consent/site instructions read?
Proposed plans sighted?
Identify type of systems
Pipe sizes 2
Main drain
Branch sizes
Branch drains over 10m vented
Gradient for 100mm pipe 3
Gradient for 65mm pipe 4
Branches enter at grade 5
Inspection points/openings 6
Level inverts installed correctly 7
Provision for vent(s) identified
Joints primed and cemented
As laid plans recorded
Drains bedded in granular fill
Drain under water test observed 8
Discharge pipes sealed through foundation
ORG/Gully traps 9
Gully trap installed?
Gully trap charged 10
Water Toby location in accordance with
Water Supply Bylaw
Stormwater 11
Pipe size 12
Outcome 1
Pass
N/A
Fail
Staged/Partial Inspection:
Details of Inspection & Comments:
Comments must be made for:
1. Non-complying Items
2. Items/work deviates from approved documents
3. Detail alternative solution & how compliance achieved
Yes/No
Yes/No
AS/NZ 3500.2.2:2003 / G13
Gradient:
Gradient:
Yes/No
mm
mm
mm
mm
mm
Yes/No
Discharge pipe/ Hose tap/ HWC relief drain
Discharge to main / kerb / lift sump (450mm) 13
Rodding points/ access points 14
Y junctions @ 45° 15
Soak pit as per plans 16
Liner perforated
Paved areas and sumps discharge to
approved outfall
Septic Tank 17
Sited as per plan
Fresh air inlet
Risers above finished ground level
Effluent Disposal
Design matches as laid plans
Siting
Minimum 3m from boundaries
Minimum 20m from watercourse
Minimum 3m from house
Stormwater cut off drain
mm
mm
of
Inspection - Drainage.DOC
Page 1 of 2

Inspection Checklist – Drainage
BCA T-30t
Ver: 2
Date: 22/07/2010
Item to be inspected for compliance:
with the Building Act 2004,
NZBC & Approved Documents
G12, G13, G14 & AS/NZS 3500.2.2:2003,
AS/NZS 1546.1:1998
Water Tanks
Siting as per plans
Overflow piped to approved water course
Notes 18 :
Outcome 1
Pass
N/A
Fail
Details of Inspection & Comments:
Comments must be made for:
1. Non-complying Items
2. Items/work deviates from approved documents
3. Detail alternative solution & how compliance achieved
Amended plans required? Yes/No Officer:
Amended specifications required?
Yes/No
Reinspection required? Yes/No Signed:
Site instruction issued?
Yes/No
Drainage inspection passed? Yes/No Date:
1 Pass = Compliance with approved plans & documentation, N/A = Not applicable to this project, Fail = Non-compliance with approved plans &
documentation.
2 AS/NZS 3500.2.2:2003 3.3 Size of drains Table 3.2 / G13 3.5 Table 2
3 100mm (1:100 = 10mm/m, 1:80 = 12mm/m, 1:60 = 16mm/m)
4 65mm : 25mm/metre
5 AS/NZS 3500.2.2:2003 4.9.1 Branches shall enter at the top of main drains
6 AS/NZS 3500.2.2:2003 Section xxxx
7 AS/NZS 3500.2.2:2003 Figs. 3.1, 3.3.5
8 water test held sound
9 AS/NZS 3500.2.2:2003 Section 4.4.6
10 AS/NZS 3500.2.2:2003 Section 4.6.3
11 NZBC E1 AS1
12 NZBC E1 AS1Section 3.1
13 AS/NZS 3500.2.2:2003 Section 3.4.2 Fig. 6
14 AS/NZS 3500.2.2:2003 Section 3.7
15 AS/NZS 3500.2.2:2003 Section 3.3.2 Fig. 5
16 NZBC E1 VM 1 Section 9
17 AS/NZS 1546:1998
18 Note any additional information, including safety issues
Inspection - Drainage.DOC
Page 2 of 2