ordinary meeting of council to be held on tuesday, 26 april 2005 at ...

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Item 18
S02252
13 April 2005
Amendments <strong>to</strong> Chapter 2 – Dictionary <strong>of</strong> Definitions
Minor changes are proposed <strong>to</strong> some definitions in order <strong>to</strong> make more clear the intent <strong>of</strong> the
document. It is also proposed <strong>to</strong> add a definition <strong>of</strong> “Sydney Water” as this body is referred <strong>to</strong> a
num<strong>be</strong>r <strong>of</strong> times in the Plan.
Amendments <strong>to</strong> Chapter 3 – Determining Development Type and Location
Minor changes only are proposed <strong>to</strong> wording in order <strong>to</strong> make more clear Council’s intent with
regard <strong>to</strong> the Locations.
Amendments <strong>to</strong> Chapter 4 – Site Planning and Building Design
The amendments proposed <strong>to</strong> Chapter 4 are primarily the addition <strong>of</strong> controls consistent with the
recently adopted Riparian Policy. Inclusion <strong>of</strong> these controls also entails the addition <strong>of</strong> an appendix
containing riparian mapping information. The new controls will require that development and
associated services are located a reasonable distance from riparian areas.
Amendments <strong>to</strong> Chapter 5 – S<strong>to</strong>rmwater Discharge Leaving the Site
It is proposed <strong>to</strong> amend Chapter 5 so as <strong>to</strong> enable pump-out systems <strong>to</strong> <strong>be</strong> employed for certain
types <strong>of</strong> Location D development, specifically developments up <strong>to</strong> and including new single
dwellings where an easement for gravity drainage cannot <strong>be</strong> obtained.
Provided that these developments are subject <strong>to</strong> strict controls regarding the impact <strong>of</strong> the pump-out
system on the receiving catchment, <strong>to</strong>gether with stringent back up systems provided on-site in the
event <strong>of</strong> pump failure/power outages (refer <strong>to</strong> controls in proposed section 5.7.9), there is no
technical reason that a pump-out should not <strong>be</strong> considered in certain circumstances where an
easement cannot <strong>be</strong> obtained.
Some minor changes <strong>to</strong> wording are also proposed so as <strong>to</strong> improve the clarity <strong>of</strong> the document.
Amendments <strong>to</strong> Chapter 6 – On-Site S<strong>to</strong>rmwater Management
Rainwater tanks were introduced as a manda<strong>to</strong>ry element <strong>of</strong> on-site s<strong>to</strong>rmwater management so as
<strong>to</strong> reduce the risk <strong>of</strong> <strong>to</strong>tal system failure as well as <strong>to</strong> help minimise demand on the mains water.
The adopted DCP allows for concessions from OSD when OSR systems (eg. water tanks) are
employed. It was not intended, however, that OSD systems <strong>be</strong> eliminated as a matter <strong>of</strong> course
when concession options were introduced in<strong>to</strong> the DCP.
Elimination <strong>of</strong> OSD s<strong>to</strong>rage in development applications is commonly occurring in development
application proposals for Type 4 (dual occupancy), Type 5 (multi-unit) and Type 6 (business,
commercial or retail premises). This is expected <strong>to</strong> cause problems in the future, following further
concentration <strong>of</strong> medium density developments proposed adjoining the rail corridor, especially as
these are situated on the ridge <strong>of</strong> the catchments where they have the potential <strong>to</strong> impact on a
greater num<strong>be</strong>r <strong>of</strong> downstream properties. Particularly given the downstream capacity <strong>of</strong> Council
systems, the magnitude <strong>of</strong> some <strong>of</strong> the (concentrated) uncontrolled discharges from these large sites
could <strong>be</strong> very large. It is therefore important that Council review its stance on OSD and OSR for
sites such as these. In doing so, it is also important <strong>to</strong> consider the issue <strong>of</strong> overflow from rainwater
tanks in the event <strong>of</strong> pump failure due <strong>to</strong> a power outage occurring in a major s<strong>to</strong>rm.
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