developed area in yellow 66
Figure 11 Aerial view of site development at Taranaki Sawmills, c. 2018 67
Figure 12 Aerial view of new sediment treatment pond at Taranaki Sawmills 67
Figure 13 Taranaki Sawmills sampling sites including receiving waters 69
Figure 14 View of DustTrak PM10 monitor during deployment 71
Figure 15 15-minute wind direction data for 2019-2020 deployment period 72
Figure 16 Prevailing wind direction and wind strength data for 2019-2020 deployment period 72 …
reports management plans and certifications 60
2.6.1 Air discharge certification 61
2.7 Incidents, investigations, and interventions 61
3 Discussion 65
3.1 Discussion of site performance 65
3.2 Environmental effects of exercise of consents 67
3.3 Site developments 69
3.4 Evaluation of performance 70
3.5 Recommendations from the 2017-2018 Annual Report 85
3.6 Alterations to monitoring programmes for 2019-2020 85
4 Recommendations 87
Glossary of common terms and abbreviations
<0.8 9 234 <4 7.4 3 3.0 18.5 <0.07 <0.07
20 Feb 2019 70 <1 1.2 <6 307 <4 8.2 3 1.90 19.6 0.2 0.1
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Parameter Alkalinity BODCF BOD COD Cond. O&G pH SS Turb. Temp. Total
Cl2
Free
Cl2
Unit g/m³
CaCO3
g/m³ g/m³ g/m³ µS/cm @
25ºC g/m³ pH g/m³ NTU °C g/m³ g/m³
28 Mar 2019 36 <1 2.0 10 150 <4 7.2 5 4.4 19.4 <0.07 <0.07
17 Apr 2019 61 <1 1.0 <6 256 <4 7.4 3 1.69 16.1 <0.07 <0.07
22 May 2019 67 <1 <0.8 <6 291 <4 7.2 <3 1.99 13.6 <0.07 <0.07
4886: to erect and maintain
structures in, and dam, the Mangamahoe Stream for the formation of
Lake Mangamahoe for HEP generation purposes 66
Table 28 Summary of performance for consent 4887: to erect and maintain
structures associated with the diversion of Waiwhakaiho River water into
Lake Mangamahoe for HEP generation purposes 66
Table 29 Summary of performance for consent 4888: emergency discharge of Lake
Mangamahoe water to the Mangamahoe Stream 67
Table 30 Summary of
water 54 3.3.2
Inter-laboratory comparisons 57 3.3.3
Air 58 3.3.4
3.4 Investigations, interventions, and incidents 59
3.5 Discussion 61
Discussion of plant performance 61 3.5.1
Evaluation of performance 61 3.5.2
Recommendations from the 2009 Annual Report 65 3.5.3
Alterations to monitoring programmes for 2014-2015 66 3.5.4
Exercise of review of consent 66 3.5.5
3.6 Recommendations 67
4. Summary of recommendations 68
Glossary of common terms and abbreviations 69
Figure 34 Long term trends in groundwater sodium concentration at Farm 1 67
Figure 35 Long term trends in groundwater Nitrate-N concentration at Farm 1 67
Figure 36 Farm 1 groundwater levels and nitrate + nitrite nitrogen concentrations during the year under
review 68
Figure 37 Long term trends in groundwater Nitrate-N concentration at Farm 2 70
Figure 38 Farm 2 groundwater levels and nitrate + nitrite nitrogen concentrations and groundwater
levels during the year under review 71
environment monitoring 33
Inaha Stream flows 33 2.1.4.1
Instream temperature 35 2.1.4.2
Water chemistry 37 2.1.4.3
Biomonitoring 44 2.1.4.4
2.1.5 Irrigation and groundwater monitoring 51
2.1.6 Solid waste disposal 59
2.2 Air 61
2.3 Investigations, interventions, and incidents 61
2.3.1 Water 63
2.3.2 Land 64
2.3.3 Air 64
2.4 Community consultation 66
2.5 Riparian management 67
2.6 Provision of reports, management plans, and certification 69
2.6.1 Reports and plans 69
2.6.2
Chemical monitoring results for Hookers Connett Road
stormwater discharge for 2012-2014 (site 44). TRC site code
STW001131 67
Table 18 Hookers discharge sample collected at inspection on 1 July
2014 during a molasses spill 68
Table 19 Summary of performance for Consent 6952-1, Hookers -
stormwater discharge to land in Waiwhakaiho catchment 70
Table 20 Summary of performance for Consent 7578-1, Hooker Bros
Investments Limited -stormwater discharge to Mangati
Stream 71
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