during the second
and third inspections. Water samples were taken in conjunction with the second inspection on 10 Jan 2022.
The Urenui Beach Camp trenches were inspected separately on 16 Feb 2022 at 0900 NZST. There had been
heavy rain prior and the camp reported they had experienced a power cut for 30+ hours, during which
NPDC had attended with generators to ensure the wastewater pumps did not overflow. There were no
odour or visual issues identified in or around the trenches at the time of
minimal flaring occurring and the flare was clean burning
with no smoke or odours noted.
4 December 2020
An inspection carried out following period of heavy rain and strong winds. A lot of tree debris was noted
around the site and the stormwater drains were being cleared at the time of inspection. Frogs were noted
within the interceptor system. In general the site was tidy and no staining was noted. Gas was being flared
at a rate and quantity which controlled smoke and odour.
4 March
Freshwater Management 2014 (NPS-FW), by
far the greatest number of attribute measurements at each site already fall into the ‘A’ NOF
category, with most of the remainder falling into a ‘B’ category. There is a single ‘C’ result and
no ‘D’ result: that is, there is no attribute at any site that falls below the compulsory bottom
lines established within the NOF.
Before the NOF was released, the Council had in preparation for the review of its RFWP
commissioned NIWA to develop regionally
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
from the normal discharge point along with the discharge immediately above it.
A slight odour was detected on site. No offensive or objectionable odour was detected offsite at the time of
the inspection. An abatement notice may be issued and the compliance rating would be pending sample
results.
16 June 2021
Inspection was undertaken as part of routine compliance monitoring, after a period of very heavy rain
overnight. The worm beds were all covered. There was evidence of a large
load out area were clear and stormwater was not discharging offsite.
No smoke or odours were noted.
19 September 2016
The site was neat and tidy at the time of the inspection. Ring drains and skimmer pits were clear of
contaminants, with no discharge offsite.
No flaring or smoke were observed.
16 January 2017
The skimmer pits contained clear water despite quite heavy rain fall during the previous few days. Frogs and
other aquatic species were in residence which may
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
Taranaki’s lakes are likely to fall below the “national bottom line”, meaning
they are considered to be degraded and in poor health. Overall, 78% of lakes were
predicted to fail to achieve the bottom line for at least one attribute, with more than 50%
of lakes likely to fail the lake-bottom dissolved oxygen attribute. A predicted 72% failed
chlorophyll-a (a measurement of algae), while 54% failed for total phosphorus and 61%
for total nitrogen.
7. There are a number of further steps required to
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
outfall. Stormwater from the tankage area is pumped over into the process sewers which flow to the
storm pond. The stormwater falling on the non-process areas of the western half of the site (Figure 1) is
directed by “v” ditches running alongside the roads to a dam/pond and then out to the Tasman Sea via the
Manu Stream. Stormwater falling on the eastern side of the site is directed to unnamed tributaries of the
Waihi Stream via outfalls and a small sedimentation pond.
The sludge lagoons