corio norlane structure plan background report - City of Greater ...

corio norlane structure plan background report - City of Greater ... corio norlane structure plan background report - City of Greater ...

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4.0 Physical Infrastructure 4.1 Water Supply Barwon Water is the authority for the region and provided the following comments: The plan provided indicates the Corio Norlane Structure Plan Core Study Area is basically the area inside the Geelong Ring Road boundary to the west and north, the Melbourne Geelong Railway line in the east and North Shore Road/Cowies Creek in the south. A small additional area of interest is identified to the south of North Shore Road including Midway, Fords and the small industrial/commercial area north of Cowies Creek. Both these areas are serviced with water by gravity from the Lovely Banks Service Basins in Anakie Road Lovely Banks. A small amount of new development is occurring inside the boundary of the Ring Road. The water supply system has adequate capacity to service the existing and future customers in this area. No major new mains are anticipated to be required for the area but some of the older mains may need to be replaced as time goes on. The Northern Water Plant is being constructed adjacent to the Shell Geelong Refinery and is initially sized to supply recycled water to Shell and for watering of sports grounds at Stead Park. This will significantly reduce the amount of potable water required by the area and will enable some capacity to be freed up in trunk sewerage infrastructure servicing the area. 4.2 Sewer Barwon Water is the authority for the region and provided the following comments: Part of the Corio Norlane Structure Plan study area is serviced by gravity sewers draining to the Black Rock Water Reclamation Plant. Other areas are serviced by sewers gravitating to major sewage pumping stations at Maryland Drive, Corio (Corio West sewage pumping station) and Greta Street, North Shore (Oyster Cove sewage pumping station). Barwon Water’s Geelong Sewerage Strategy includes servicing of areas covered in the Corio Norlane Structure Plan study area. Key components of this strategy include: • Development of the Northern Water Plant to supply recycled water to Shell’s Geelong Refinery and Stead Park. This will reduce flows in the core trunk sewers in this area. • Expand the sewage flow balancing tank (Northern Flow Retarding facility in stages) to enable more efficient use of available capacity in downstream trunk sewers. 4.3 Stormwater Drainage 4.3.1 Drainage Catchments The study area is divided into Drainage Catchments C153, C155 and C156. Catchment No. C153 drains to Cowies Creek, Catchment No. C155 drains to Cuthbertson Creek and Catchment No. C156 drains to an unnamed waterway. All waterways discharge to Corio Bay. The catchments and other drainage features are shown in Map 7. There are also substantial retarding basins located at the City of Greater Geelong Anakie Road Operations Centre and at Flinders Peak Reserve directly north of Plantation Road. Drainage is primarily underground, with the stormwater runoff released to Corio Bay via a network of open channels, stormwater pipes and pumps. City of Greater Geelong Corio Norlane Structure Plan Background Report - 46 - Final - March 2011

Engineering Services Unit generally considers the infrastructure to be in adequate to poor condition and upgrading will be required as the area is redeveloped. There is a need to identify under-performing or out-dated assets for future works, such as in North Shore. Poor water quality entering Corio Bay has been identified by the CSIRO Port Phillip Bay & Geelong Healthy Waterways Program, particularly runoff from businesses along Station Street, North Shore. Runoff from Corio Shopping Centre, including hard rubbish, is not adequately treated at source and a further significant contributor to poor water quality discharge. There are opportunities to improve water quality entering Corio Bay in conjunction with creating better east-west pedestrian and cycle linkages from the study area, particularly along Cowies Creek and Cuthbertson Creek (eg. Cowies Creek Rehabilitation Plan at Seagull Paddock and improvement to Stead Park). Such linkages also allow for improved green spaces and biodiversity to an area devoid of natural features. 4.3.2 Stormwater Management Plan The City of Greater Geelong Stormwater Management Plan 2003 (SWMP) was commissioned to guide the City in improving the environmental management of stormwater throughout the municipality. It provides a basis for the City to manage stormwater using best practice and protect the community’s enjoyment of the region’s natural and man made waterways. It provides a framework for integrating stormwater management as part of its existing management and planning activities and as such is intended to provide an ongoing process aimed at protecting and enhancing receiving environmental values and beneficial uses that are currently threatened by stormwater runoff. One of the key stormwater threats is industrial land runoff; this was noted as a very high stormwater threat in the North Geelong catchment. Runoff from industrial areas generate an array of stormwater pollutants ranging from elevated sediment loads to hydrocarbons that can originate from poor waste management practices (eg tipping oil into the stormwater system). The North Geelong catchment is also subject to the threat of substantial sediment, litter, and hydrocarbon loads generated on major road and transport corridors such as the Princes Highway. These are classified as moderate to high threats. The demand pressures on the water supply in Geelong are detailed in the Plan and opportunities for stormwater reuse are investigated. Of relevance to the Port of Geelong is the opportunity for the reuse of stormwater in industrial processes. Options include the collection of roof water to be stored in wetlands or urban lakes and then used by industries which can use non-potable water but which presently use large amounts of potable reticulated water. The structural treatment recommended includes two gross pollutant traps at Cowies Creek and one at Moorpanyal Park. One of the Cowies Creek traps has been installed as well as the one at Moorpanyal Park – both are fully operational and removing litter from the local catchment. The non-structural program for the North Geelong sub catchment focuses mainly on industry awareness of the stormwater issue in combination with site specific environmental management plans, audits and inspections and enforcement infringement measures (in conjunction with the EPA) if required. 4.3.3 Special Building Overlay (Amendment C127) Council is in the process of implementing into the Greater Geelong Planning Scheme a number of adopted flood / drainage studies undertaken over the past 10 years to identify the nature and extent of flooding in a number of catchments within the City. One of the studies is of the St Georges Road Main Drainage Catchment Augmentation (C155), which affects residential and industrial parts of Corio and Norlane. Corio Norlane Structure Plan Background Report - 47 - Final - March 2011

4.0 Physical Infra<strong>structure</strong><br />

4.1 Water Supply<br />

Barwon Water is the authority for the region and provided the following comments:<br />

The <strong>plan</strong> provided indicates the Corio Norlane Structure Plan Core Study Area is<br />

basically the area inside the Geelong Ring Road boundary to the west and north, the<br />

Melbourne Geelong Railway line in the east and North Shore Road/Cowies Creek in the<br />

south. A small additional area <strong>of</strong> interest is identified to the south <strong>of</strong> North Shore Road<br />

including Midway, Fords and the small industrial/commercial area north <strong>of</strong> Cowies<br />

Creek.<br />

Both these areas are serviced with water by gravity from the Lovely Banks Service<br />

Basins in Anakie Road Lovely Banks. A small amount <strong>of</strong> new development is occurring<br />

inside the boundary <strong>of</strong> the Ring Road. The water supply system has adequate capacity<br />

to service the existing and future customers in this area. No major new mains are<br />

anticipated to be required for the area but some <strong>of</strong> the older mains may need to be<br />

replaced as time goes on.<br />

The Northern Water Plant is being constructed adjacent to the Shell Geelong Refinery<br />

and is initially sized to supply recycled water to Shell and for watering <strong>of</strong> sports grounds<br />

at Stead Park. This will significantly reduce the amount <strong>of</strong> potable water required by the<br />

area and will enable some capacity to be freed up in trunk sewerage infra<strong>structure</strong><br />

servicing the area.<br />

4.2 Sewer<br />

Barwon Water is the authority for the region and provided the following comments:<br />

Part <strong>of</strong> the Corio Norlane Structure Plan study area is serviced by gravity sewers<br />

draining to the Black Rock Water Reclamation Plant. Other areas are serviced by<br />

sewers gravitating to major sewage pumping stations at Maryland Drive, Corio (Corio<br />

West sewage pumping station) and Greta Street, North Shore (Oyster Cove sewage<br />

pumping station).<br />

Barwon Water’s Geelong Sewerage Strategy includes servicing <strong>of</strong> areas covered in the<br />

Corio Norlane Structure Plan study area. Key components <strong>of</strong> this strategy include:<br />

• Development <strong>of</strong> the Northern Water Plant to supply recycled water to Shell’s<br />

Geelong Refinery and Stead Park. This will reduce flows in the core trunk sewers in<br />

this area.<br />

• Expand the sewage flow balancing tank (Northern Flow Retarding facility in stages)<br />

to enable more efficient use <strong>of</strong> available capacity in downstream trunk sewers.<br />

4.3 Stormwater Drainage<br />

4.3.1 Drainage Catchments<br />

The study area is divided into Drainage Catchments C153, C155 and C156. Catchment<br />

No. C153 drains to Cowies Creek, Catchment No. C155 drains to Cuthbertson Creek<br />

and Catchment No. C156 drains to an unnamed waterway. All waterways discharge to<br />

Corio Bay. The catchments and other drainage features are shown in Map 7. There are<br />

also substantial retarding basins located at the <strong>City</strong> <strong>of</strong> <strong>Greater</strong> Geelong Anakie Road<br />

Operations Centre and at Flinders Peak Reserve directly north <strong>of</strong> Plantation Road.<br />

Drainage is primarily underground, with the stormwater run<strong>of</strong>f released to Corio Bay via<br />

a network <strong>of</strong> open channels, stormwater pipes and pumps. <strong>City</strong> <strong>of</strong> <strong>Greater</strong> Geelong<br />

Corio Norlane Structure Plan<br />

Background Report - 46 - Final - March 2011

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