Banks Peninsula residents asked to check stormwater systems

Christchurch City Council is asking Banks Peninsula residents to check their stormwater drainage systems as spring approaches.

Residential areas of Banks Peninsula, where the soil is mostly clay, often hold water which if not properly drained can weaken the land resulting in problems such as slips.

Council City Environment General Manager Jane Parfitt says it is important for residents to be proactive when it comes to maintaining their properties and to identify any issues before they become serious problems.

“An unchecked stormwater system can quickly lead to serious problems, so although cleaning your stormwater system is not a glamorous job, as a homeowner it’s just one of those things that has to be done.”

Common issues caused by stormwater can include flooding, soil erosion, slips and, especially for Banks Peninsula, under-runners which occur when water soaks into the ground and over time creates a tunnel beneath the earth’s surface. These tunnels can collapse causing damage to driveways and roads.

Stormwater run-off on residential properties can also be a problem on modified areas such as driveways, roofs, patios and sealed areas or any area that increases the flow of stormwater.

Blockages caused by leaves or natural build-up are often the main causes of stormwater issues on properties, so Council recommends residents check all guttering, downpipes, rainwater tanks, driveways and sealed areas to ensure all stormwater drainage systems are clear and working properly. Other areas that may need checking also include irrigation systems, swimming pools and on-site sewer systems.

Mayor Bob Parker says even though the last 12 months have been difficult, residents still need to work together for the benefit of their communities.

“If everyone does their bit, in everything we do at the moment, the results will benefit both our rural and urban communities in more ways than one, which is particularly important given our current climate.”