|
|
 |
 |
An open drain, part of the regions drainage system |
Stormwater
Last modified: August 31, 2007 - 11:06 AM
What is stormwater?
How are Stormwater Networks Designed?
Stormwater Pollution
Stormwater Management Plans
Stormwater Improvement Structures
What is Stormwater?Stormwater is water generated by rainfall which does not soak into the ground. This water generally runs off hard surfaces (roofs, roads, paved areas, yards) flowing into a network of drains and pipes eventually entering nearby waterways. Unlike sewage stormwater is not treated and any substances entering the drainage system that is not pure rainwater effects the health of our local waterways.
How are Stormwater Networks Designed?Stormwater Networks are designed to convey the more common rainfall events to a safe discharge point and to minimise flooding of surrounding areas. This minor system design is the traditional pit and pipe network that is under most of our roads. For greater flows, it is the intention to contain the remaining water within the road area or drainage channel.
Sometimes this cannot be achieved due to topographic factors. Sometimes a developer will setup a designated portion of land over a subdivision with the intention of conveying stormwater. This land is called a drainage easement and within it will either be an open drain or an underground pipe connected to the streets stormwater network.
Stormwater PollutionFor information on stormwater pollution please refer to Council's water pollution page or download the Stormwater Fact Sheet.
Stormwater Management Studies & PlansCouncil is legislatively required under the Protection of the Environment Administration Act to prepare Stormwater Management Plans for urban areas exceeding 1000 people. Hence Council has prepared two (2) Stormwater Management Plans for Tea Gardens/Hawks Nest/Bulahdelah and Forster/Tuncurry regions. The primary purpose of preparing these plans is to improve the health and quality of the regions urban waterways. The objective of these plans includes;
- facilitating a cooperative approach to stormwater management on a catchment basis, where more than one stormwater manager is present;
- identifying management priorities and actions for councils and other stormwater managers within a catchment. This will enable these organisations to be better prepared to apply for external sources of funding;
- establishing a program of actions identified on a catchment basis that can be integrated with councils management planning process under the Local Government Act.
Prior to developing the Forster/Tuncurry Stormwater Management Plan Council conducted a Source Control Study. This document assisted greatly with the preparation of the Management Plan providing valuable background data.
To view Council's Forster/Tuncurry Stormwater Management Plan and Wallis Lake Source Control Study please refer to the download files section below. To view the Tea Gardens, Hawks Nest and Bulahdelah Stormwater Management Plan please contact Council on 02 6591 7222.
Stormwater Improvement StructuresFor information on stormwater improvement structures please refer to Council's stormwater improvement structures page.
Contact details
Drainage Engineer
02 6591 7273 (ph)
02 6591 7242 (fax)
council@greatlakes.nsw.gov.au
|
