Taiaotea Creek Assessment
Documents
Taiaotea Creek report PDF 
(1.17MB)
Taiaotea Creek maps (PDFs)
Links
North Shore stream assessments overview page
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| Length | 5.2km | |
| Size Of Catchment | 387ha |
|
| Vegetation Cover | 16% (60ha), small areas scattered sparsely around the catchment. |
|
| Imperviousness | 37% |
|
| District Plan Land Use | Business | 4% |
| Recreation | 8% | |
| Residential | 71% | |
| Road | 17% | |
| Recreational Use | High, known high public use of stream locality. | |
| Receiving Environment | Browns Bay Beach, Hauraki Gulf | |
| Substrate | Predominantly concrete lined, unlined stretches were silt/mud. | |
| Natural Wetlands | Nil | |
| Artificial Wetlands | 2 (Sherwood & Bayside stormwater ponds). | |
| Periphyton | Significant densities throughout and at nuisance levels in Tributary 3. | |
| Macrophytes | Possible management issues in the upper main channel and probable management issues in Tributaries 1 & 3. | |
| Macroinvertebrates | Low to high MCI & EPT taxa comparable to most other North Shore streams. | |
| Fish | 6 species of native fish | |
| Potential Man-Made Barriers to Fish Passage to Upstream Habitat | 16 (+ 1 potential natural barrier). | |
| Channel Modification | Highly modified throughout. Upper main channel, Tributaries 1, 1A, & 2 between 48 & 63% piped; lower main channel significant bank modification; and Tributary 3 96% lined. | |
| Erosion around Structures | 5 structures with slight erosion + 1 structure with moderate erosion. | |
| Bank Erosion | Predominantly slight, moderate to severe in unmodified sections. | |
| Temperature | No data | |
| Suspended Solids, Turbidity And Visual Clarity | Suspended solids both below and well above average, below average turbidity, relatively high water clarity. | |
| Oxygen and Oxygen Demand | Oxygen concentration 8.5g/m 3 & oxygen saturation indicative of healthy aquatic environment (>80%). BOD average & above average for North Shore streams (<2.0 & < 2.9g/m 3 ). | |
| Nutrients | Average ammonia, nitrate both above and below average. | |
| Contaminants | Potentially indicates elevated copper and zinc concentrations. |
|
| Bacteria and Pathogens | Levels of indicator bacteria indicate the stream is not suitable for contact recreation.. | |
| Sediment Quality | No data | |
| Debris | Issues regarding inorganic debris in the lower main channel. | |
| Stream Grouping | Group 2, High value low disturbance | - |
| Group 3a, Urban semi-modified | 22% | |
| Group 3b, Urban modified | 38% | |
| Group 4, Concrete lined channel | 16% | |
| Group 5, Piped section | 24% | |