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Executive summary
The Stratford District Council (SDC) operates a municipal wastewater treatment plant (WWTP) located on
Victoria Road at Stratford, in the Patea catchment. This report for the period July 2021 to June 2022
describes the monitoring programme implemented by the Taranaki Regional Council (the Council) to assess
SDC’s environmental and consent compliance performance during the period under review. The report also
details the results of the monitoring
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Executive summary
South Taranaki District Council (STDC) operates a municipal wastewater treatment plant (WWTP) located on
South Road at Opunake, in the Otahi and Heimama catchments. This is a three-stage treatment system
comprised of a primary oxidation pond, a wetlands treatment system, and a subsurface, reticulated soakage
trench system that subsequently discharges to an unnamed coastal stream between the Otahi Stream and
the Heimama Stream. This report for the period
used these compliance grading criteria for more than 19 years. They align closely with the 4 compliance
grades in the MfE Best Practice Guidelines for Compliance, Monitoring and Enforcement, 2018
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Table 1 Summary of resource consent and processes
Water Supply
Scheme Resource consent Next Review Expires Activity Process
New
Plymouth
0672 - Discharge - 2026 To discharge wastewater from a WTP into an
unnamed tributary of the Mangorei Stream
Raw
for retail sale.
Firth Industries holds one resource consent, which includes a total of seven conditions setting out the
requirements that they must satisfy. The consent allows for the discharge of treated wastewater onto and
into land and into an unnamed tributary of the Tawhiti Stream.
During the monitoring period, Firth Industries demonstrated a good level of environmental performance
and high level of administrative performance.
There was a breach of consent conditions due to
CDEM Joint Committee March 2024
inspections of the
wastewater system, one inspection of the rock wall, and routine bacteriological water sampling of the Wai-iti
Stream and Wai-iti Beach on one occasion.
The monitoring showed that the Retreat was well maintained during the period under review. The
wastewater treatment system at the Retreat did not adversely affect the water quality of the local freshwater
and coastal environments. The results of this sampling suggested that the Retreat was not influencing the
water quality of
includes a total of 123 conditions setting out the requirements that GPL must
satisfy. GPL hold one consent to allow it to take and use water, three consents to discharge treated
stormwater and wastewater into the Mangaoraka and Ngatoro Streams, and three consents to discharge
emissions into the air.
The Council’s monitoring programme for the year under review included four inspections each of the
Kaimiro and Radnor production stations and the Ngatoro-A satellite site; and an annual inspection
Executive summary
The New Plymouth District Council (NPDC) operates a municipal wastewater treatment plant (WWTP)
located on Lincoln Road at Inglewood, in the Kurapete catchment. This report for the period July 2021 to
June 2022 describes the monitoring programme implemented by the Taranaki Regional Council (the
Council) to assess NPDC’s environmental and consent compliance performance during the period under
review. The report also details the results of the monitoring undertaken and assesses the
quality criteria. Irrigation of wastewater during the year led to mass loadings of
nitrogen per hectare that were well in excess of those recommended by the Council and the description of
N loadings previously provided by RNZ. The rates of application in 2021-2022 raise questions about
whether the ability of pasture to take up nitrogen could be surpassed, and the timing and volume of
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irrigation events suggest that irrigation is being used as a means to prevent the
Protection
Water discharge permits
Methanex Motunui 0822-2 To discharge uncontaminated stormwater
to Waihi and Manu Streams
29 Nov
2012 N/A 1 June
2027
Methanex Motunui 0825-3
To discharge uncontaminated stormwater
to an unnamed tributary of the Waitara
River
31
March
2008
N/A
Expired –
S.124
Protection
Methanex Motunui 0827-3 To discharge wastewater to an unnamed
tributary of the Waitara River
31
March
2008
N/A
Expired –
S.124
Protection