AGENDA - Sunshine Coast Council
AGENDA - Sunshine Coast Council
AGENDA - Sunshine Coast Council
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Strategy and Planning Committee Agenda 16 February 2011<br />
35. The developer shall design and construct the lake, marina, canal extension and its<br />
associated infrastructure in accordance with <strong>Council</strong>’s Development Design Planning<br />
Scheme Policy to:<br />
• ensure regular inflow of saline water from the Pumicestone Passage to the<br />
lake, marina and canal extension; and<br />
• maintain adequate water circulation within the lake using a system generally in<br />
accordance with the Pelican Waters Southern Lake – Lake Water Quality<br />
Investigation (Cardno Lawson and Treloar, August 2010) to produce a<br />
maximum 22 day turnover with the Lamerough Canal under both current<br />
climate and year 2100 considering projected sea level rise of 0.8m; and<br />
• ensure that the water quality of the lake, marina and canal extension<br />
(excluding bottom and near bottom waters) complies with the flowing water<br />
quality criteria:<br />
Environmental Protection (Water) Policy 2009 Pumicestone Passage<br />
environmental values and water quality objectives -<br />
a) turbidity: < 8 NTU<br />
b) suspended solids: < 25 mg/L<br />
c) chlorophyll a: < 8 µg/L<br />
d) total nitrogen: < 450 µg/L<br />
e) Oxidised N: < 15 µg/L<br />
f) ammonia N: < 30 µg/L<br />
g) inorganic N: < 400 µg/L<br />
h) total phosphorous: < 30 µg/L<br />
i) filterable reactive phosphorous: < 10 µg/L<br />
j) dissolved oxygen: 80 – 105% saturation<br />
k) pH: 7.0 – 8.4<br />
l) secchi depth: > 0.5 m<br />
Toxicants in Water and Sediment as per Australian and New Zealand<br />
Water Quality Guidelines (2000) -<br />
m) Aluminium and iron at concentrations to comply with accepted limits<br />
conducive to the protection of estuarine and marine ecosystems and<br />
aluminium and iron at concentrations not prejudicial to human health<br />
Microbiological and Physio-chemical standards as per the National<br />
Health and Medical Research <strong>Council</strong> Guidelines for Managing Risks in<br />
Recreational Water (2008) -<br />
n) Cyanobacteria/algae - Karenia brevis: < 10 cells/mL<br />
o) Intestinal enterocicci: 95 th percentile ≤ 40 organisms per 100 mL.<br />
The above water quality criteria apply with respect to the finished component<br />
of the lake, canal and marina within each stage as well as the ultimate<br />
configuration of the lake, canal and marina.<br />
In the event that the water quality criteria are not being achieved, and the<br />
developer can demonstrate that the criteria is not being achieved due to the<br />
influence of the water quality of in flowing waters from the Lamerough Canal<br />
system, then the water quality criteria shall default to the median water quality<br />
values (the “Default Criteria”) sampled and measured in Lamerough Canal at<br />
the entrance to the Pumicestone Passage at the finish of an incoming tide;<br />
The “Default Criteria” shall only apply during the monitoring period that water<br />
quality within the lake / canal / marina system has been detrimentally affected<br />
by inflowing waters from Lamerough Canal;<br />
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