Normally these discharges are in batches with a frequency ranging from daily to weekly, dependent on
rainfall. During and after exceptionally heavy rainfall, the discharge may occur for continuous periods of up
to 24 hours.
In 2021-2022, the maximum daily volume of stormwater discharged from the site was 6,063 m3/d following
rainfall of 120 mm and 87 mm. Given the extremely high rainfall and that there was only one minor non-
compliance instance above the 6,000 m3/d limit the Company was
From 5 November 2013 to 3 April 2014 a total of 13 samples were collected at each site
for the purpose of state of the environment monitoring (SEM). Whenever possible, no
SEM sampling was undertaken within three days following significant river freshes.
However, occasionally sampling was affected by localized rainfall and elevated river
flows. An additional seven samples were taken at five of the beaches (Onaero, Fitzroy,
Ngamotu, Oakura and Opunake) regardless of weather conditions for the
STDC landfills consent monitoring report - Taranaki Regional Council.
Mangati catchment (Bell Block industrial) resource consent monitoring report
devices shall be telemetered and report the data electronically to the Chief Executive once
per day, and shall include the rainfall data at hourly intervals from the station established at
the Mangaotea Road culvert.
A land use consent for the damming of the Mako Stream via an existing dam structure to form
Lake Ratapiko for hydro-electric power generation purposes, including the service and auxiliary
spillway structures
page
Trustpower – Proposed Conditions
contaminated
stormwater from three main processing areas. These are the greenwaste pad (Pad 1), the paunch pad (pad
2) and drilling waste pad (pad 3).
Pad 3, holds drilling muds, fluids and cuttings which are mixed with sawdust and/or other organic material
such as poultry waste. This is then composted in one very large pile which is turned to stimulate the
composting process in the initial phase.
Any rainfall runoff and leachate that is generated, drains into a series of ponds for treatment
STDC Closed Landfills Annual Report 2022-2023
visits are summarised below. Records of production and incinerator operation were
inspected and found to be satisfactory.
26 August 2016
There were isolated showers with a light north westerly wind during the inspection. Rainfall of 60 mm had
been measured in the week prior at the Brooklands Zoo station, nearly all of which had occurred in the
preceding two days. SV8000 had recently been drained to accept stormwater from the hazardous
substances area. The water level in SV9100 was at 110
the
risk of this happening again.
The maximum rainfall (43 mm/hr) used in
the application by Remediation (NZ) may be
a bit light.
This has been reviewed by the applicant in
their application.
The site needed to be tidied up generally.
The untidiness does not given them
confidence that it is being managed
appropriately.
Management plans and improved detail in
job descriptions for site and management
staff are intended to address this, along with
better recording of
science research project
development opportunities and strategies for regional
councils, to enhance knowledge base for policy development
and implementation. Projects with clear relevance and benefit
to Taranaki to be adopted by "Envirolink" and other funding
opportunities (advocacy to be reported through Council's
annual report processes).
Envirolink projects are underway: a revised national High Intensity
Rainfall Design System, and development of Discrete Water