Greenhithe Stream assessment
Summary of report findings
Originally covered in kauri forest, development of the Greenhithe Stream following the arrival of European settler has been gradual and limited in extent. Current land use in the area is predominantly rural residential (67%), with areas of road, open space, bush, rural, commercial and some industrial use (boat building, 0.15%). Almost all land presently in rural (4%) use is zoned for low density residential development including large lot sites.
Documents
Greenhithe Stream report PDF 
(967KB)
Greenthithe Stream maps (PDFs)
Links
North Shore stream assessments overview page
You will need Acrobat Reader to view some documents on this page, which can be downloaded free from www.adobe.com
| Length |
4km |
|
| Size Of Catchment | 245ha | |
| Vegetation Cover | 34% (84ha), generally in the southern part of the catchment. | |
| Imperviousness | 20% | |
| District Plan Land Use | Business | 0.2% |
| Recreation | 14% | |
| Residential | 67% | |
| Road | 14% | |
| Rural | 4% | |
| Recreational Use | Low | |
| Receiving Environment | Lucas Creek Estuary | |
| Substrate | Relatively high proportion of bedrock, also silt and mud. | |
| Natural Wetlands | 0 | |
| Artificial Wetlands | 1 | |
| Periphyton | Generally acceptable or good. | |
| Macrophytes | No significant management issues. | |
| Macroinvertebrates | Moderate richness and moderate to low MCI values. | |
| Fish | 3 species of native fish | |
| Potential Man-Made Barriers to Fish Passage to Upstream Habitat | 11 | |
| Channel Modification | Relatively few bank modifications, some piped sections under roads in some tributaries. | |
| Erosion around Structures | 4 with slight erosion and 1 each with moderate or severe erosion. | |
| Bank Erosion | Slight to moderate. | |
| Temperature | No information. | |
| Suspended Solids, Turbidity And Visual Clarity | Clarity 0.4m to 0.67m. | |
| Oxygen and Oxygen Demand | No information. | |
| Nutrients |
Median ammonia 0.05 g/m3. |
|
| Contaminants | No information. | |
| Bacteria and Pathogens | No information. | |
| Sediment Quality | No information. | |
| Debris |
Relatively low. |
|
| Stream Grouping | Group 2, High value low disturbance | 58% |
| Group 3a, Urban semi-modified | 33% | |
| Group 3b, Urban modified | - | |
| Group 4, Concrete lined channel | 7% | |
| Group 5, Piped section | 2% | |