production or the main
pipeline could have major effects on the national economy.
5. Greater reliance on services and infrastructure within urban areas for the general
public.
6. Isolation and access to food for smaller towns within the region.
7. A disaster could have a major effect on the regional economy (particularly oil and
gas and agriculture), therefore planning for prompt recovery will be a priority.
8. Ash fall in an eruption of Mt Taranaki is highly likely to contaminate water
consent or a rule in a regional plan, or it falls within some particular categories set
out in Section 14.
As Greymouth Petroleum Limited was unable to estimate the rate or volume of the
take, and as such, may exceed the limits of the permitted activity Rule [Rule 48 of the
RFWP], the take of groundwater fell for consideration under Rule 49 of the RFWP as
a controlled activity.
The standards of Rule 49 require that:
• The abstraction shall cause not more than a 10% lowering of
which water levels rise and fall rapidly in
response to rainfall. The unit has both shallow unconfined low-yielding aquifers and
confined higher yielding aquifers at depth. The unit includes New Plymouth and other
urban areas and most of the land use (outside the Egmont National Park) is
predominately intensive pastoral farming. The use of surface water supports a wide
range of consumptive activities including agriculture, industry, community water
supplies, and hydro-electric power
excess of 5000 mm’s on the slopes of Mt Taranaki. Median annual rainfall is
shown in Figure 3 for the Taranaki region which shows the strong spatial variation.
Heavy rainfall is meteorologically defined to be “when greater than 100 mm of rain falls
within 24 hours, or a pro rata amount” (Thompson et al. 2006). The regions heaviest
rainfall occurs when warm moist northerly airflow flow from the tropics flows onto the
district. These conditions can persist when fronts lying
that works needed to be undertaken to ensure best
practice is maintained. This included ensuring that chemicals are covered with tarpaulins, especially when
rain is expected, and ensuring that chemicals are stored in a bund if access to another storage area is not
immediately available. Also discussed was the bund itself and the requirement that it must capture and
contain stormwater to ensure that spilled chemicals cannot escape the bund and flow to the ring drain,
skimmer pit and ultimately
of birdlife. It has been noted that
the South Taranaki ring plain contains a very sparse bird life, owing to the lack of
habitat (Fish and Game, 2006).
2.1.2 Hydrological values
Intact small streams and wetlands provide natural flood control, absorbing significant
amounts of rain water and runoff before saturation and consequent flooding occurs.
Natural stream channels tend to meander and provide a variety of substrate types
which slow the flow and energy of water, aiding seepage
was undertaken as NPDC had notified Council on 18 May 2021 that the Inglewood WWTP was
overflowing into the Kurapete Stream. A NPDC WWTP technician was on site taking discharge samples. The
discharge into the Kurapete Stream was estimated at 95 L/sec. The discharge consisted of mainly rain water,
with some partially treated wastewater. This was slightly turbid/cloudy and light greyish in colour. The
Kurapete Stream was running at a moderate swift flow and there was no significant visual
wellsites. Inspections were undertaken on 28 July and 31 October 2022, and
8 March and 16 May 2023. Additional monitoring was undertaken during the monitoring period in relation
to drilling at the Kapuni-J wellsite. This will be discussed in the annual drilling report.
28 July 2022
Heavy persistent rain and strong winds have proceeded the inspection. The stormwater system was working
well, with all stormwater being collected and directed for treatment prior to discharge from site. The site
Table 3 Summary of monitoring activity for 2021-2022 17
Table 4 Chemical analysis of Colson Road landfill combined site leachate discharge 33
Table 5 Sample results for characterisation of Stage 1&2 and Stage 3 leachate 34
page
iii
Table 6 Results of analysis of under liner drainage for the year under review. 37
Table 7 Sample results for the characterisation of the under liner groundwater drainage 42
Table 8 Results of rain event monitoring – discharge and