| Length |
4.6km |
| Size Of Catchment |
151ha |
| Vegetation Cover |
29% (44ha), significant continuous vegetation along the stream channel and tributaries. |
| Imperviousness |
36% |
| District Plan Land Use |
Business |
3% |
| Recreation |
23% |
| Residential |
55% |
| Road |
15% |
| Recreational Use |
Medium, some known public use of the stream locality. |
| Receiving Environment |
Shoal Bay |
| Substrate |
Predominantly silt/mud. |
| Natural Wetlands |
1 |
| Artificial Wetlands |
Nil |
| Periphyton |
Below nuisance levels. |
| Macrophytes |
Possible management issue in the lower main channel. |
| Macroinvertebrates |
Moderate. |
| Fish |
5 species of native fish + koura. |
| Potential Man-Made Barriers to Fish Passage to Upstream Habitat |
2 |
| Channel Modification |
Largely unmodified. Contoured banks in the lower main channel and Tributary 1 only. |
| Erosion around Structures |
7 structures with slight erosion, 2 with moderate erosion, and 3 with severe erosion. |
| Bank Erosion |
Slight (natural) erosion throughout except for severe erosion in Tributary 8. |
| Temperature |
1 winter measurement indicating no adverse effect. However summer temperatures are likely to be higher. |
| Suspended Solids, Turbidity And Visual Clarity |
Moderate suspended solids, low turbidity and high clarity compared to other North Shore streams. |
| Oxygen and Oxygen Demand |
Good oxygen levels and oxygen demand typical for North Shore streams. |
| Nutrients |
Low ammonia and nitrate values compared to other North Shore streams. |
| Contaminants |
Overall typical of urbanised streams. |
| Bacteria and Pathogens |
Levels of indicator bacteria suggest the stream is not suitable for contact recreation. |
| Sediment Quality |
No data. |
| Debris |
Insignificant. |
| Stream Grouping |
Group 2, High value low disturbance |
61% |
| Group 3a, Urban semi-modified |
24% |
| Group 3b, Urban modified |
15% |
| Group 4, Concrete lined channel |
- |
| Group 5, Piped section |
- |
Waiurutoa Stream Assessment
Waiurutoa Stream report PDF 
(2.34MB)
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