on 12 May 2020 42
Table 11 Results of rain event monitoring – discharge and Puremu Stream samples, 2 June 2020 45
Table 12 Results of rain event monitoring - Manganaha Stream, 2 June 2020 45
page
iii
Table 13 Biomonitoring sites in the Puremu and Manganaha Streams related to the Colson Road
landfill 47
Table 14 Bore depth and screen depth information for potentially collapsed bores 50
Table 15 Chemical analysis of Colson Road landfill groundwater sampled …
Results are available to the public live on our website. What we find is that water quality of the region’s bathing beaches is generally high, with around 95% of samples meeting New Zealand health guidelines for recreational use. Occasionally water quality can be affected. This is particularly evident after heavy rain when a large volume of river water is discharged to the sea, carrying contaminants such as bird faeces, sediment, urban stormwater, agricultural run-off and so on. In some circumstances
Application attachment appendix I Recreation Assessment Manawa Energy 14 Feb 2023 REVISED
stabilisation will be
done using green waste disposed of at the Patea transfer station.
Patea Beach is an elevated site which for most of the time is dry. Rain that does fall on the site drains away
at a very rapid rate. The site does not suffer from flooding from rain or tidal action, due to its elevation.
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4
Figure 1 Regional map showing the location of the Patea green waste site
Figure 2 Aerial view of the Patea Beach green waste disposal area
Patea River
monitoring inspection and to take
water samples. The weather was fine with 13 mm rain falling over previous 72 hours
and the stream system was in low flow. A truck was discharging drilling muds and a
digger was operating blending in sawdust at time of inspection. A discussion was
held with the digger driver and site manager on the drainage issues at the top of the
lower irrigation area and the installation of novaflo in a few swampy areas on the
main irrigation flats. Discussion included the
freshwater and coastal swimming spots last summer found higher-than-usual levels of bacteria, reflecting the season’s higher rainfall, the Policy and Planning Committee was told. More rain meant dairy effluent ponds discharged for longer and more frequently than usual, and clouds prevented the sun from breaking down bacteria. Even so, waterfowl continued to be the main culprits at the worst freshwater sites, the Waiwhakaiho River near Lake Rotomanu and the mouths of Te Henui Stream and Waimoku Stream.
long and 25 m wide, and is shown in Figure 2.
In the 2016-2017 monitoring period, issues were found with unacceptable wastes being exposed by coastal
erosion. This resulted in the site being closed to the public in 2017. Any further dune stabilisation will be
done using green waste disposed of at the Patea transfer station.
Patea Beach is an elevated site which for most of the time is dry. Rain that does fall on the site drains away
at a very rapid rate. The site does not suffer from …
weather. About 40% of
New Plymouth’s rain comes with winds from the north or north-east, usually falling
as steady rain for several hours or longer. South easterlies tend to be dry. The annual
rainfall for New Plymouth averages around 1500 mm. Rainfall across the region
varies from around 1000 mm on the southern coast, to 2000 mm at the highest points
of the ringplain around Stratford, and higher rainfall in the hill country and on Mt
Taranaki.
Wind roses for the region are shown in Figure 3.
Bibliography and references 103
Appendix I Resource consents held by NPDC
List of tables
Table 1 Consents held by NPDC that relate to the Colson Road landfill 13
Table 2 Summary of monitoring activity for 2020-2021 14
Table 3 Chemical analysis of Colson Road landfill leachate 40
Table 4 Results of analysis of under liner drainage for the year under review. 42
Table 5 Results of rain event monitoring – discharge and Puremu Stream samples, 19 August 2020 47
Table 6 Results
Bibliography and references 103
Appendix I Resource consents held by NPDC
List of tables
Table 1 Consents held by NPDC that relate to the Colson Road landfill 13
Table 2 Summary of monitoring activity for 2020-2021 14
Table 3 Chemical analysis of Colson Road landfill leachate 40
Table 4 Results of analysis of under liner drainage for the year under review. 42
Table 5 Results of rain event monitoring – discharge and Puremu Stream samples, 19 August 2020 47
Table 6 Results