East Tamaki Peninsula Catchment background details
Catchment background details taken from "East Tamaki Comprehensive Catchment Mangement Plan Development East Tamaki Area", Beca, Carter, Hollings and Ferner Ltd.
| Information | Details | Reference 1 | Reference 2 |
|---|---|---|---|
| Catchment Group | East Tamaki Peninsula | ||
| Location | The area lies to the east of the Tamaki estuary, and adjoins existing developed parts of Manukau City, with Otara to the east, and Howick to the north | Map 1 | |
| Total catchment area | 1735 hectares | ||
| CCDC | - | ||
| ARC reference | - | ||
| Sub Catchments | CID-Storm City | ||
| 623 | Highbrook | ||
| 624 | Highbrook | ||
| 625 | Highbrook | ||
| 626 | Fisher & Paykel | ||
| 637 | Waiouru Peninsula | ||
| 646 | Stonedon | ||
| 648 | Cryers | ||
| 649 | Bostock | ||
| Annual Rainfall | - | ||
| Annual Discharge | - | ||
| Slope Range | - |
||
| Main Channel Length | - | ||
| Primary System LOS | - | ||
| Open Water Courses Length | - | ||
| Geology/Soil | - |
Table 11 | |
| Land Use | The East Tamaki catchment area consists of large areas
of Future Development (stages 1 and 2) zoning, Main Residential, and Rural 2, 3 & 4 zonings. Smaller individual pockets of land are zoned for recreational use as Public Open Space 1, 2 & 4. In addition, two separate parcels of land are designated for specific uses. |
Table 4 | Map 3 |
| Water Quality | A total of 27 sites were visited in February/March 2000 (See Map 1). Of these, four were not sampled (but visual observations were noted), seven were sampled for both fish and macroinvertebrates, and a further four sites were visited for macroinvertebrate samples and habitat assessments. The remaining seven sites were sampled only for fish. | Map 1 | |
| NPS | - | ||
| PS | - | ||
| Flood Hazard | The ‘5 year, 7 day low flow’
is typically quoted as a measure of the low flow characteristics
of a stream or catchment.The East Tamaki catchment area draining to Hills Road is approximately 19km2 and hence this equates to approximately 0.38 L/s/km2. The average size of the subcatchment areas is around 60ha (0.6 km2), which will typically yield slightly more than 0.2 L/s for the 5 year 7 day low flow event. This will vary throughout the catchment and it is most likely that the steeper areas and/or areas with poorer draining soils will hold little if any residual flow during dry periods. |
Table 10 | Table 9 |