Services and activities
The stormwater group includes activities and services related to managing stormwater.
Stormwater is rainwater that flows across the ground and does not get absorbed into the soil. It flows into stormwater pipes and streams, and from there into the sea. The DCC owns and maintains a large network of pipes, pumping stations and other infrastructure to safely dispose of stormwater.
By ensuring adequate stormwater provision to Dunedin communities, we can protect public safety with a minimal impact on the environment.
Effective management of stormwater is essential to prevent the flooding of properties and businesses. Controls are also necessary to ensure that stormwater does not become excessively contaminated and cause pollution of the watercourses, the harbour and the ocean.
Community outcomes
The sewerage and sewage group contributes to the following community outcomes:
- A sustainable city with healthy and treasured natural environments
- A healthy city with reliable and quality water, wastewater and stormwater systems
- A supportive city with caring communities and a great quality of life
Measuring performance
| Measure | Data Source | Actual 2019/20 | Year 1 2021/22 | Year 2 2022/23 | Year 3 2023/24 | Year 4 – 10 2024-31 | |
|---|---|---|---|---|---|---|---|
| Level of service: Stormwater services perform adequately and reliably. | |||||||
| Percentage of residents satisfied with the stormwater system | ROS | 49% | ≥50% | ||||
| System and adequacy (DIA measure) | The number of flooding events that occur in the DCC district (ZC) | Internal data | 0 | 0 | |||
| For each flooding event, the number of habitable floors affected (expressed per 1,000 properties connected to the stormwater system) (ZC) | Internal data | Not measured | 0 | ||||
| Level of service: Stormwater is managed without adversely affecting the quality of the receiving environment | |||||||
| Compliance with the territorial authority’s resource consent for discharge from its stormwater system, measured by the number of: (DIA measure) | Abatement notices | Internal data | 0 | 0 | |||
| Infringement notices | 0 | 0 | |||||
| Enforcement notices | 0 | 0 | |||||
| Successful prosecutions | 0 | 0 | |||||
| Level of service: Service calls are responded to promptly | |||||||
| The median response time to attend a flooding event, measured from the time that notification is received to the time that service personnel reach the site (DIA measure) | Internal data | 50 minutes | <60 minutes | ||||
| The number of complaints received about the performance of the stormwater system, expressed per 1000 properties connected to the stormwater system (DIA measure) | Internal data | 0.31 complaints per 1,000 connections | <1 per 1,000 connections | ||||
(ZC) levels of service statements and measures that will help monitor progress towards Council’s zero carbon 2030 target.
ROS Residents’ Opinion Survey