NCC 2016 Volume Three
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Section C Sanitary Plumbing and Drainage Systems
Part C1 Sanitary Plumbing Systems
Delete C1.2(a) and insert Vic C1.2(a) as follows:
Vic C1.2 General requirements
(a)
The design, construction, installation, replacement, repair, alteration and maintenance of a sanitary plumbing system must be in accordance with the following:
(i)
AS/NZS 3500.2, including the following variations and additions:
(A)
After clause 13.9(b), delete the following: Where a bath trap is not accessible, the bath shall discharge untrapped to a floor waste gully (FWG) in accordance with Table 4.6.7.2 and Appendix C.
(B)
After clause 15.1, insert 15.1(A) as follows:
15.1(A)
When tested, the respective sections of any soil pipe, waste pipe, vent pipe or above-ground drain must be free of leaks when subjected to an air test in accordance with clause 15.3; and
(C)
Substitute clause 15.3.3 as follows:
15.3.3
When tested, the respective sections of any soil pipe, waste pipe, vent pipe or above ground drain must be free of leaks when subjected to an air test in accordance with clause 15.3.2 over the minimum test duration specified in Table 15.3.2.
(ii)
Section 4 of AS/NZS 3500.5 including the following variations and additions:
(A)
After clause 4.37.2.2(b), delete the following:
Where a bath trap is not accessible, the bath shall discharge untrapped to a floor waste gully (FWG) in accordance with Table 4.36.8.2 and Table 4.37.1.2 (see end of Section 4); and
(B)
After clause 4.47.1, insert 4.47.1(A) as follows:
4.47.1(A)
When tested, the respective sections of any soil pipe, waste pipe, vent pipe or above ground drain must be free of leaks when subjected to an air test in accordance with clause 4.47.3; and
(C)
Substitute clause 4.47.3.3 as follows:
4.47.3.3
When tested, the respective sections of any soil pipe, waste pipe, vent pipe, or above ground drain must be free of leaks when subjected to an air test in accordance with clause 4.47.3.2 over the minimum test duration specified in Table 4.47.3.3.
(iii)
The requirements of this Part.
Part C2 Sanitary Drainage Systems
Delete CP2.2 and insert Vic CP2.2 as follows:
Vic CP2.2 No point of connection
Where a point of connection to a Network Utility Operator’s sewerage system is not available, an on-site wastewater management system must be designed, installed and maintained in accordance with the requirements and agreement of the relevant authority having jurisdiction.
Delete C2.2(a) and insert Vic C2.2(a) as follows:
Vic C2.2 General requirements
(a)
The design, construction, installation, replacement, repair, alteration and maintenance of a sanitary drainage system must be in accordance with the following:
(i)
AS/NZS 3500.2, including the following variations and additions:
(A)
Substitute clause 5.3(c) as follows:
5.3(c)
under all bends greater than DN 65 forming risers from the drain.
(B)
After clause 15.1, insert 15.1(A) as follows:
15.1(A)
Testing of a sanitary drainage installation—
(a)
if installed at a property provided with non-drinking water by the Network Utility Operator’, may be carried out in accordance with—
(i)
a water test in accordance with clause 15.2; or
(ii)
an air test in accordance with clause 15.3; or
(iii)
a vacuum test in accordance with clause 15.4; or
(b)
in cases other than in (a), testing may be carried out by way of—
(i)
an air test in accordance with clause 15.3; or
(ii)
a vacuum test in accordance with clause 15.4.
(C)
After clause 5.4.2(c)(iv) of AS/NZS 3500.2, insert (d) as follows:
(d)
Free running sand capable of passing through a 2 mm mesh sieve, and does not contain clay, organic or any other deleterious materials, shall only be used in permeable soil conditions where ground water or surface water entering the trench does not disturb the sand.
(ii)
AS/NZS 3500.5 including the following variations and additions:
(A)
Substitute clause 4.29(c) as follows:
4.29(c)
under all bends greater than DN 65 forming risers from the drain.
(B)
After clause 4.47.1, insert 4.47.1(A) as follows:
4.47.1(A)
Testing of a sanitary drainage installation—
(a)
if installed at a property provided with non-drinking water by the Network Utility Operator’, may be carried out in accordance with—
(i)
a water test in accordance with clause 4.47.2; or
(ii)
an air test in accordance with clause 4.47.3; or
(iii)
a vacuum test in accordance with clause 4.47.4; or
(b)
in cases other than in (a), testing may be carried out by way of—
(i)
an air test in accordance with clause 4.47.3; or
(ii)
a vacuum test in accordance with clause 4.47.4.
After C2.2(c) insert Vic C2.2(d) and (e) as follows:
(d)
If an inspection shaft or boundary trap riser in a below ground sanitary drainage system is located clear of a building and is not likely to be damaged by vehicular traffic, a light cover must be installed in accordance with clause 4.4.2.1(a) and clause 4.4.2.1(c)(ii) and (iii) of AS/NZS 3500.2.
(e)
Discharge pipes measuring DN 50 or smaller must not be installed in a below ground sanitary drainage system, except for discharge pipes connected to floor waste gullies.
Vic Part C201 Requirements for Drainage Work
Vic C201.1 Requirements for low risk on-site liquid trade waste management practices
(a)
A low risk liquid trade waste appliance must—
(i)
be located as close as practicable to the fixtures that it serves and if of the portable type must be installed above ground; and
(ii)
be fitted with a cover which is able to withstand vehicular or pedestrian traffic or other loads likely to be imposed on it and is readily removable by one person; and
(iii)
be constructed of materials suitable for the nature of the wastes likely to be discharged through the appliance.
(b)
A low risk liquid trade waste appliance must—
(i)
if fitted with an airtight cover, be provided with a DN 32, DN 50 or DN 80 sized vent as nominated by the relevant Network Utility Operator; and
(ii)
be provided with the following outlet ventilation—
(A)
if installed outside a building, a DN 100 sized riser off a disconnector gully in accordance with clause 4.6.2 of AS/NZS 3500.2;
(B)
if not of the portable type and installed inside a building, a DN 50 sized vent off a disconnector gully in accordance with clause 4.6.5 of AS/NZS 3500.2; and
(C)
if of the portable type installed inside a building, a DN 50 sized vent off a DN 80 sized trap riser in accordance with clause 4.6.5 of AS/NZS 3500.2.
(c)
If a low risk liquid trade waste appliance and outlet vent are interconnected, the interconnection must be in accordance with clause 6.8.3 of AS/NZS 3500.2.
(d)
The outlet from a low risk liquid trade waste appliance must—
(i)
if of the portable type receiving a hydraulic loading of up to 5 fixture units, be a minimum size of DN 50; or
(ii)
if of the portable type receiving a hydraulic loading of more than 5 fixture units, be a minimum size of DN 80; or
(iv)
have a separate trap, of the same size as the outlet pipe, installed at its outlet.
(e)
In this clause hydraulic loading means the rate of discharge imposed on a sanitary plumbing installation and is measured in fixture units; low risk liquid trade waste means water-borne discharges other than sewage that are classified by an Authority within the meaning of the Water Act 1989 as being of low risk from causing harm to the environment and the assets of that Authority; low risk liquid trade waste appliance means an appliance that traps and partially treats low risk liquid trade waste and prevents it from entering the sewerage system.
Note
Note: The relevant Authority under the Water Act 1989 or the holder of a licence under the Water Industry Act 1994 may specify conditions of connection to a sewer for low risk trade waste to enter that sewer and may also require that the waste passes through a low risk liquid trade waste appliance of a type nominated by the Authority or holder of a licence before it enters the sewer.