WASTEWATER WORKS APPROVAL CONDITIONS
WWC1
The system is to be installed, commissioned, operated and maintained
in accordance with:
1.1
1.2
1.3
1.4
1.5
1.6
1.7
The plans and specifications submitted including any
amendments made/required with this approval
Manufacturers,
installers
and
equipment
suppliers’
instructions and recommendations
In the case of any wastewater products to be installed, the
relevant product approval conditions
Australia/New Zealand Standard for Sanitary Plumbing and
Drainage (AS/NZS 3500.2)
The Onsite Wastewater Systems Code
All other relevant standards and codes
Conditions of this approval
WWC2
In accordance with the Regulations, wastewater works must be carried
out by a suitably qualified person. Additionally, the required signed
Certificates of Compliance and ‘as constructed’ drawings must be
submitted to Council and the owner or occupier of the land within 28
days of the work being undertaken
WWC3
Council is to be given at least one business days notice at the following
stages of work:
 under floor plumbing with work under water test
 drain and septic tank installation with drain work under water test
 subsurface effluent disposal system or irrigation system installation
 final inspection
WWC4
The use of the wastewater system shall not vary from that indicated on
the application for approval of the on-site wastewater system
WWC5
This approval will expire if the works are not commenced or are
commenced but not substantially completed within 24 months after the
date of approval
WWC6
The existing septic tank is to be disconnected as follows:
 proper removal of the contents of the tank with the base effectively
punctured and the tank backfilled with suitable soil and rubble; or
 proper removal of the contents of the tank with the tank being
removed and disposed of off-site and the area backfilled with
suitable compacted material
WWC7
The surface irrigation system must comply with the requirements of the
On-site Wastewater Systems Code and wastewater engineer’s report.
The irrigation system must be commissioned and inspected prior to
occupancy of the premises
WWC8
The subsurface irrigation system must comply with the requirements of
the On-site Wastewater Systems Code and wastewater engineer’s
report. The irrigation system must be commissioned and inspected prior
to occupancy of the premises
WWC9
The subsurface effluent disposal system must comply with the
requirements of the On-site Wastewater Systems Code and wastewater
engineer’s report
WWC10 Pump, sump and alarms to be in strict compliance with the On-site
Wastewater Systems Code. All pumped discharges to the CWMS
connection point are to comply with AS/NZS 3500.2:2003 and the
discharge flow rate into the CWMS is not to exceed 2 litres per second
WWC11 Where effluent PVC diverters are installed they are to be actioned once
every 4 months to allow the operation of the soakage trenches during
the different seasons of the year
WWC12 Any discharge of trade wastes from this premises may be subject to
further licensing conditions in accordance with Council’s Trade Waste
Discharge Policy
WASTEWATER WORKS APPROVAL NOTES
WWN1
The location of the CWMS connection point for this allotment cannot be
confirmed. Contractors should confirm the location and depth of the
CWMS connection point prior to any wastewater works being
undertaken
WWN2
Ensure minimum setback distances of 2500mm from septic tank to
side boundary and footings are maintained
WASTEWATER SYSTEM REQUIREMENTS
WS1
SEPTIC TANK:
Minimum effective capacity of litres
EFFLUENT DISPOSAL SYSTEM:
Connection to Council’s Community Wastewater Management System
(CWMS)
WS2
SEPTIC TANK:
Minimum effective capacity of litres
EFFLUENT DISPOSAL SYSTEM:
Soakage trench metres long x metres wide. Base of soakage trench
to be installed mm below surface level
WS3
SEPTIC TANK:
Minimum effective capacity of litres
SECONDARY TREATMENT:
Sand Filter Bed with a minimum effective surface area of m²
IRRIGATION DISPOSAL SYSTEM:
Minimum effective surface area of m²
WS4
SEPTIC TANK:
Minimum effective capacity of litres
SECONDARY TREATMENT:
Manufacturer:
Model:
IRRIGATION DISPOSAL SYSTEM:
Minimum effective area of m²
WS5
SEPTIC TANK & EFFLUENT DISPOSAL:
Connect to existing septic tank and Council’s Community Wastewater
Management System (CWMS)
WS6
SEPTIC TANK:
Existing septic tank satisfactory
EFFLUENT DISPOSAL SYSTEM:
Existing effluent disposal system satisfactory
WS7
SEPTIC TANK:
Existing septic tank satisfactory
EFFLUENT DISPOSAL SYSTEM:
Soakage trench long x wide
Base of soakage trench to be installed below
surface level
WS8
COMBINED ALL WASTE AEROBIC SYSTEM:
Manufacturer: <<Name of Manufacturer>>
Model: <<Model>>
IRRIGATION DISPOSAL SYSTEM:
Minimum effective area of<<area>>m²
WS9
SEPTIC TANK:
Existing septic tank satisfactory
SECONDARY TREATMENT:
Existing aerated wastewater system satisfactory
IRRIGATION DISPOSAL SYSTEM:
Existing irrigation disposal system satisfactory
WS10
COMBINED SEPTIC TANK AND AEROBIC UNIT:
Existing combined septic tank and aerated wastewater system
satisfactory
IRRIGATION DISPOSAL SYSTEM:
Existing irrigation disposal system satisfactor