1 WRS Waikaikai Landfarm with regional insert
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Summary of the site data is presented below:
Site data: Waikaikai Landfarm
Location
Word descriptor: Lower Manutahi Road, Manutahi, Taranaki
Map reference: E 1719720
(NZTM) N 5605515
Mean annual rainfall: 1,043 m
Mean annual soil temperature: 15.1ºC
Mean annual soil moisture: 32.9%
Elevation: ~45 m
Geomorphic position: Dune back slope
Erosion / deposition: Erosion
closed landfill site 38
Table 16 Summary of performance for Patea closed landfill stormwater and leachate consent 0427-3 39
Table 17 Summary of performance for Patea closed landfill air discharge consent 4636-2 39
Table 18 Summary of performance for Patea closed landfill stormwater and sediment consent 7268-1 40
List of figures
Figure 1 Regional map of STDC closed landfills 5
Figure 2 Eltham landfill and sampling sites (not currently monitored) 6
Figure 3 Aerial view of
held by the companies in the Lower Waiwhakaiho area;
• the nature of the monitoring programme in place for the period under review; and
• a description of the activities and operations conducted in the Companies’ site/catchment.
Each company’s activity is then discussed in a separate section (Sections 2 to 7).
In the subsections for each company (e.g. Section 2.1) there is a general description of the industrial activity
and its discharges, an aerial photograph or map showing the
REGIONAL XPLORER
STDC, SDC and TRC collaborate to
provide regional geographic
information system (GIS) services
to the community via Taranaki
Regional Xplorer.
Regional Xplorer is a free web-
based mapping and local authority
information service. Users have
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access to property information, infrastructure services, environmental services, planning
information and aerial photgraphy.
Benefits
Cost-savings from creating and maintaining a single system.
Table 12 Incidents, investigations, and interventions summary table 21
Table 13 Summary of performance for consent 0196-5 23
Table 14 Evaluation of environmental performance over time 25
List of figures
Figure 1 Influent phosphorus and mean concentration over 180 days 9
Figure 2 Effluent nitrate 10
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Figure 3 Aerial location map of sampling sites in relation to Stratford WWTP 12
Figure 4 Taxa number, MCI scores and SQMCI scores for
Figure 4 Location of sampling sites in relation to the Eltham
wastewater treatment system 20
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Figure 5 Aerial location map 21
Figure 6 Trend in MCI at the Mangawhero Stream site downstream
of the outfall (MWH000490) 28
Figure 7 Trend in MCI at the Mangawhero Stream site upstream of
the outfall (MWH000380) 28
List of photos
Photo 1 Overflow retention pond, 21 July 2011 8
Photo 2 Replacement aerator, June 2013 14
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TRC Guidelines for the Control of Drilling Wastes 50
Appendix IV Schrider Landfarm Results 545
Appendix V Maps of Landfarmed Sites 58
Appendix VI Spence Road Landfarm results 60
Appendix VII Agknowledge landfarm review report 63
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iii
List of tables
Table 1 Summary of landfarming consents covered by this report 5
Table 2 Soil samples taken on 12 June 2013 at Geary Landfarm 12
Table 3 Origin supplied soil results from the Geary
consent 43
4. Recommendations 44
Glossary of common terms and abbreviations 45
Bibliography and references 47
Appendix I Resource consents held by Trustpower Ltd in relation to the Patea HEPS 1
Appendix II Lake Rotorangi Hazard Maps 1
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ii
List of tables
Table 1 Summary of breaches of flow rise and recession rates in the 2011-2014
period 17
Table 2 Summary of lake levels in relation to consent conditions 20
Table 3 Reports submitted to
adequately capture the “true” variability of water
quality state. Secondly, lack of spatial representation arises from the limited spatial coverage of the existing
monitoring network. Each type of uncertainty is identified and assessed in the following sections.
Maps of the site-specific baseline attribute states for ammonia, nitrate, and DRP concentrations at each
state of environment monitoring site are presented in Figure 1, Figure 2 and Figure 3, respectively.
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3953-3 43
Table 16 Chemical analysis of samples taken in the vicinity of the Patea closed
landfill site 48
Table 17 Summary of performance for Patea closed landfill stormwater and
leachate consent 0427-3 49
Table 18 Summary of performance for Patea closed landfill air discharge
consent 4636-2 50
Table 19 Summary of performance for Patea closed landfill stormwater and
sediment consent 7268-1 51
List of figures
Figure 1 Regional map of STDC landfills 5
Figure 2 Eltham