wastewater design · MCU22/0192

Pump Systems shall

have a separate effluent pump chamber/tank volume of at least 200It with an
additional emergency storage volume of 24 hours flow rate

match the electrical starting requirements of the irrigation pump motor

have performance characteristics that match the hydraulic characteristics of the
irrigation system

have a discharge of at least 50% greater than the maximum 30 minute flow rate
have a visual and audible alarm system (with muting ability) for breakdown
notification

not be located adjacent to bedrooms, living rooms or recreational areas of
neighbouring properties

be contained in an acoustic chamber to reduce noise emission of all equipment to
a level not exceeding 40 dB (measured as fast response at a distance of 1m).

The system shall have the ability to isolate the effluent from the sprinkler system to
enable servicing and maintenance requirements of the irrigation area. The method of
isolation cannot cause harm to the treatment plant operation (pump, electrical,
treatment). Manufacturer of the treatment plant is to approve the method of isolation.
Spray outlets are not permitted to operate when persons are required to enter the Land
Application Area (e.g. when being serviced and/or maintained).

There are obvious increased public health risks associated with effluent spray
irrigation systems due to the potential contact with effluent by humans, animals and
insects.

 

Unearthed Geotechnical P/L. 12 Design Report 022-164