Arataki ........................................................................................................................................................................................................... 66
Regional ............................................................................................................................................................................................................. 67
Regional Land Transport Plan
Land Transport Plan for Taranaki: Mid-Term Review 2018/19-2020/21
67
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FRODO-#2265199-v2-Request_to_vary_the_Taranaki_RLTP_-_Taranaki_SH_Speed_Management_Guide_Implementation Page 3 of 3
Timeframes for consideration of variation request
The following outlines the expected timeframes for processing this variation request. The
organisation requesting the variation is responsible for outlining the proposal to the RTAG and
RTC.
Consideration by
Arataki ........................................................................................................................................................................................................... 66
Regional ............................................................................................................................................................................................................. 67
Regional Land Transport Plan
Taranaki Regional Council Biodiversity Strategy 2017.
56
Periphyton biomass 57
Summary of 2002-2018 (16 year data set) 58
Long term trend analysis 59
Punehu Stream 62
Flow and nutrient data and survey dates 63
Periphyton cover 63
Periphyton Index Score 64
Periphyton biomass 65
Summary of 2002-2018 (16 year data set) 66
Long term trend analysis 67
Waingongoro River 70
Flow and nutrient data and survey dates 71
Periphyton cover 71
Periphyton Index Score 73
Periphyton biomass 73
rainfall extremes 58
4.5 Changes in Winds 58
4.6 Tropical cyclones 61
4.7 Drought 61
4.7.1 Climate change scenarios 61
4.7.2 Change in Average Potential Evapotranspiration Deficit 62
4.7.3 Change in Return Period 64
5. Impacts of climate change and drought in Taranaki 67
5.1 Impacts 67
5.1.1 Temperature 67
5.1.2 Precipitation 67
5.1.3 Flooding 67
5.1.4 Drought 67
5.1.5 Wildfire 68
6. Knowledge Gaps 68
7. References 70
8. Appendices 74
8.1 Analysis of
Carbonate g/m3 CO3 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0
Bicarbonate g/m3 HCO3 67 65 63 66 63 134
Total hardness g/m3 CaCO3 60 59 53 58 53 108
Electrical conductivity mS/m 18.7 18.5 16.8 17.8 16.8 31.3
Total suspended solids g/m3 22 51 80 27 <3 680
Total dissolved solids g/m3 126 134 120 121 120 220
Dissolved aluminium g/m3 - - <0.003 - <0.003 0.006
Dissolved arsenic g/m3 - - <0.0010 - <0.0010 <0.0010
Dissolved barium g/m3 - - 0.027 - 0.027 0.057
Dissolved boron g/m3 - - 0.011 - 0.011 0.014
Dissolved
3 Sampling procedure and analytical parameters 7
4 Water quality results 9
4.1 Sites’ water quality 9
4.2 Comparative water quality for the twenty four-year (1995-2019) period 63
4.2.1 TRC data 63
4.2.2 NIWA data 67
4.2.3 Comparative water quality for the twenty four-year (1995-2019) period 67
4.2.4 National Objectives Framework 70
4.3 Trends in physicochemical water quality data from 1995 to 2019 74
4.3.1 Introduction 74
4.3.2 Trend analysis methods 74
3.2.7.2 Bristol Road site (MGN000427) 63
3.2.7.3 Discussion 66
3.2.8 Maketawa Stream 67
3.2.8.1 Derby Road site (MKW000200) 67
3.2.8.2 Tarata Road site (MKW000300) 70
3.2.8.3 Discussion 73
3.2.9 Waitara River 74
3.2.9.1 Mamaku Road site (WTR000850) 74
3.2.9.2 Community composition 75
3.2.9.3 Temporal trends in 1995 to 2015 data 76
3.2.9.4 Discussion 77
3.2.10 Mangati Stream 78
3.2.10.1 Site downstream of railbrige (MGT000488) 78
3.2.10.2 Te Rima Place, Bell Block site
................................................................................................................................................ 49
Biosecurity and biodiversity ........................................................................................................................................ 61
Transport ...................................................................................................................................................................... 67
Hazard management