The Council provides a network of pipelines and open drains that collect, convey and dispose of stormwater.
The Waimakariri District Council has responsibility for the following functions:
- Urban stormwater
- Rural drainage: Council maintained drains can be viewed on the rural drainage areas map
- Water races: While not a drainage function, the Council also maintains a network of stockwater races throughout much of the rural area, for the purpose of providing stockwater to rural properties. These can be viewed on the water race map.
When talking about water, some common terms that are used include surface water, groundwater, wastewater and stormwater.
- Surface water is what we see in our rivers, lakes, streams, wetlands and estuaries
- Groundwater is the water that exists in aquifers beneath the ground. This is replenished by rainwater that travels through the soil
- Wastewater is the water that goes down drains from inside our house, after we do our washing, flush the toilet or have a bath
- Stormwater runs through a separate piped system from that of wastewater or across the ground - it doesn't end up in the sewer.
Managing Stormwater Runoff
An extensive system of open drains are in place for the treatment of stormwater in the larger urban areas of Rangiora, Kaiapoi and Pegasus. Smaller networks, with no major treatment facilities, exist in areas such as Oxford, Woodend, Pines, Kairaki and Waikuku.
Stormwater is discharged, untreated, into streams and rivers. That's why it's so important that it's as clean as possible. If contaminated stormwater pollutes rivers and streams, this can have a negative impact on aquatic life, the natural environment and public health. It can also limit recreational use of waterways.
The open drain network in rural and urban areas is maintained in accordance with the conditions of ECan consent CRC195065. This required the development of a Drainage Maintenance Management Plan.
The plan sets out how the Waimakariri District Council will work toward achieving sustainable drainage systems management. It also represents a shift from the traditional focus of drain maintenance only being about maintaining water capacity. While this remains a key objective, the plan includes a number of actions to redevelop Council drainage areas into more sustainable systems. Proposed design options are included that are intended to flush or reduce growth of aquatic weeds so that drainage areas can naturally self-clean and require less ongoing maintenance.
Contact: Council's Land Drainage Engineer on 0800 965 468.
In an emergency always phone 111 and ask for the Fire Service
Drainage Advisory Groups
- Clarkville Rural Drainage Advisory Group
- Central Rural Drainage Advisory Group
- Coastal Rural Drainage Advisory Group
- Ohoka Rural Drainage Advisory Group
- Oxford Rural Drainage Advisory Group
- Waimakariri Water Race Advisory Group