applied (mm) m3 of effluent
Total 105.1 - 24,083
2.3.2.3 Method of irrigation
The effluent from the piggery is pumped to storage pond prior to land application. The Company
communicated that three different delivery systems were used during the 2021-2022 monitoring year:
1. Dribble bar – main method of effluent application, depths applied (~3 mm)
2. ‘Weta’ travelling rain gun – used to apply effluent to the Sand Dune block at 8mm depths during 8
months of the year.
3. Slurry tank
2020
The fill area was coming to the end of fill capacity. No inappropriate material was observed. It was noted
that the first of the three silt fences needed to be repaired. Although it was fine during the inspection, it had
rained heavily prior to arrival, no issues were noted with regards to stormwater or visually in the receiving
water. No dust or odours were noted.
20 May 2021
No activity was occurring on the site during the inspection. There were some piles of soil at the top
regional plan, or it falls within some particular
categories set out in Section 14.
The Company holds water permit 10247-1 to cover the abstraction of groundwater incidental to quarry
operations and for aggregate washing purposes. This permit was issued by the Council to the previous site
operators (Inglewood Metal Ltd) on 1 December 2016 under Section 87(d) of the RMA. The permit was then
transferred to The Company on 6 April 2017.
page
5
Figure 1 Quarry operations,
Operations and Regulatory Committee Agenda June 2025
Table 3 Summary of monitoring activity for 2023/24 13
Table 4 Chemical analysis of Colson Road landfill combined site leachate discharge 27
Table 5 Sample results for characterisation of Stage 1 and 2 and Stage 3 leachate 28
Table 6 Results of analysis of under liner drainage for the year under review. 31
Table 7 Sample results for the characterisation of the under liner groundwater drainage 35
Table 8 Results of rain event monitoring–discharge and Puremu Stream, 26 September
by NPDC that relate to the Colson Road landfill 14
Table 2 Monitoring programme objectives and programme development methodology 15
Table 3 Summary of monitoring activity for 2022-2023 16
page
iii
Table 4 Chemical analysis of Colson Road landfill combined site leachate discharge 33
Table 5 Results of analysis of under liner drainage for the year under review. 35
Table 6 Results of rain event monitoring – discharge and Puremu Stream samples, 1 June 2023 40
be worse than it was due to rain earlier. The site manager advised this
would be cleaned up.
4 May 2022
The site was busy with normal operations. Traffic was particularly busy within the scrap area and some swarf
was observed tracking to the drains. All drain screens were in place and appear to be regularly maintained
to prevent blocking. All hazardous chemicals were appropriately contained. Rainwater within bunding was at
a low level. Spill kits were in place throughout the site and
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
year
Standard hydrometric equipment $1,772.00 per year
Tangahoe hydrometric equipment $619.00 per year
Tawhiti hydrometric equipment (lower) $1,573.00 per year
Tawhiti hydrometric equipment (upper) $973.00 per year
Waingongoro hydrometric equipment $755.00 per year
Waitaha hydrometric equipment $7,356.00 per year
Rain Gauge Calibration $306.00 per deployment
Chlorine Meter $18.90 per use
Multi-parameter Field Meter $102.00 per day
EXPLANATION
This scale of charges is used to