plant or on water quality in the Herekawe Stream. No complaint in relation to
the Company’s activities was registered by the Council.
During the year, the Company demonstrated a high level of environmental and
administrative performance.
For reference, in the 2014-2015 year, 75% of consent holders in Taranaki monitored through
tailored compliance monitoring programmes achieved a high level of environmental
performance and compliance with their consents, while another 22% demonstrated a
Kaimiro field, via the K-17 (14,776 m3) and K-10 (1,207m3) injection wells.
The volumes of fluid discharged, and the pressure at which it was injected into the receiving
formations, were within the limits specified in the respective resource consents.
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The information gathered during inspection visits and the data supplied by the consent
holder for Council audit have been used in compiling this report.
The Council did not receive any complaints or register any
Taranaki coastline 29
Photo 5 Contrasting habitat between the exposed Waihi site (left) and stable Manihi site (right) 30
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1
1 Introduction
State of the environment monitoring
The Resource Management Act 1991 (RMA) established new requirements for local authorities to undertake
environmental monitoring. Section 35 of the RMA requires local authorities to monitor, among other things,
the state of the environment of their region or district, to the extent that is
85 special
conditions setting out the requirements that the Company must satisfy in order to minimise
risk of damage to the environment or overuse of resources. Consent 0822-1 expired during the
monitoring period (12 March 2012) and was renewed as 0822-2 on 29 November 2012 with a
number of changes to the conditions. Consent 3400-2 was varied on 18 June 2012 to include a
condition allowing an increase in the use of the chemical ‘Spectrus CT1300’ to control
Legionella bacteria outbreaks. The
monitoring year, with most
commencing irrigation in November or December and concluding in February. Rainfall recorded at the
Council’s monitoring locations over the summer irrigation period ranged between 55 % and 111% of
historical mean values. A particularly dry November and December lead to a drought being declared in
Taranaki during 23 December 2017. As a result, irrigation water demand was high during the 2017-2018
irrigation season, with a total water use across all exercised irrigation
‘acceptable’ category. There were no
exceedances of WHO’s daily mean threshold, with the maximum individual daily mean recorded over the
entire dataset being 14 µg/m3. An annual mean of 4 µg/m3 was recorded for each full year of the
monitoring period, or 40% of the threshold of 10 µg/m3 set by WHO.
Both filter analysis, and a comparison of monitoring results with meteorological conditions, indicate that
marine aerosols are the major source of PM2.5 in the region. Emissions from domestic fires used …
use, or the ability of the receiving formation to accept injected fluids. The results of
groundwater quality monitoring undertaken show no adverse effects of the activity at monitored locations.
Inspections undertaken during the monitoring year found sites being operated in a professional manner
and there were no Unauthorised Incidents in relation to any of the Company’s DWI consents.
During the year, the Company demonstrated a high level of environmental and administrative performance
14: Stormwater or sewage where does it all go? 24
Activity 15: River safety 25
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2
Mathematics and Statistics
Flow measurements
volume
averages
counting invertebrates averages
Estimation
Percentages
Technology
Technological Practice
Measuring flow and turbidity
Conductivity Measurement
Science
The living world - life cycles
- ecosystems
- invertebrate sampling
The physical world - temperature
- measuring flow
-
report.
1.1.3 The Resource Management Act 1991 and monitoring
The Resource Management Act 1991 (RMA) primarily addresses environmental ‘effects’
which are defined as positive or adverse, temporary or permanent, past, present or
future, or cumulative. Effects may arise in relation to:
(a) the neighbourhood or the wider community around an activity, and may include
cultural and social-economic effects;
(b) physical effects on the locality, including landscape, amenity and visual
consents to discharge water or sediment into the Makara,
Mangaotea, and Mako streams, one consent to discharge wastes to land around Lake Ratapiko
and four land use permits for bed disturbance and structures in the Manganui River,
Mangaotea Stream and Lake Ratapiko. Seven additional consents allow Trustpower to abstract
water, and construct and maintain structures in the Mangaotea Stream.
During the period under review, Trustpower demonstrated a good level of environmental
performance at the