water from this process is either allowed to evaporate or is discharged via the
outfall.
• Naturally occurring dissolved salts in the abstracted river water are removed
using ion exchange resins. Process boiler condensates for reuse also go through
ion exchangers to remove trace minerals. The resins are regenerated using
sulphuric acid and sodium hydroxide. The waste flow is neutralised prior to
discharge via the outfall.
• The on-site boilers are fed with demineralised water with added
consent holders, site inspections, and data gathering, review and
assessment for compliance. It was a busy season for the Council’s hydrological unit, as the
weather conditions meant the demand for irrigation was high. All irrigation had commenced
by the middle of December.
Over the five month (summer irrigation) period, Mount Taranaki recorded between 71% and
77% of normal rainfall for which meant that rivers were running well below normal for the
entire period. The low stream flows
within the CMA
Values associated
with sites
Map reference
TRC
Number
NZAA
Number
Description
Waitara River to
Onaero River
Waiau Stream and Tributaries
The Waiau Stream is located north of Waitara. It springs from the land and flows to the
Tasman Sea. It is in the rohe of Ngāti Rahiri.
The social, cultural, historical and spiritual importance of the Waiau Stream is illustrated
through Te Atiawa traditions and histories. The traditions and
Mana o te Wai in freshwater management, and to identify and reflect tangata whenua values and interests in the management of freshwater and in decision-making around freshwater planning. The Committee heard from Ngāti Mutunga representatives, who explained the results of their assessments of the Urenui River and Mimitangiatua River, using the ‘Mauri Compass’ tool that recognises mātauranga Māori in environmental monitoring. The assessments found the mauri of both awa has declined markedly since
These minor issues were resolved
positively, co-operatively, and quickly. The Council was not obliged to issue
any abatement notices or infringement notices in relation to the minor non-
compliant effects; however abatement notices may have been issued to mitigate
an identified potential for an environmental effect to occur.
For example:
- High suspended solid values recorded in discharge samples, however
the discharge was to land or to receiving waters that were in high flow at
the
AGS to SPS 58
page
iv
Table 31 2015-2016 skimmer pond discharge results 63
Table 32 Summary of performance for Consent 3681-2 68
Table 33 Summary of performance for Consent 7432-1 69
Table 34 Summary of performance data for Consent 7746-1 69
List of figures
Figure 1 Physico-chemical, biological sampling sites, discharge sites
and abstraction site 21
Figure 2 Patea River flow at Skinner Road (m3/s), July 2015–June
2016 23
Figure 3 Ahuroa B
the Environment, examines the impacts of climate change on
hydrological conditions at 20 river mouths around the country. The focus of the report is on
potential future changes in New Zealand river hydrology (for example changes in mean
flow, flow extremes and flow exceedances) at 20 locations across the country out to 2099.
The effects of climate change on the water cycle are becoming increasingly important and are
expected to become more pronounced by the end of the century. This is of
operations onto
and into land in the vicinity of the Patea River
September
2010 2028
Tariki-A 3679-2
To discharge treated stormwater, uncontaminated treated
site water and uncontaminated treated production water
from hydrocarbon exploration and production operations at
the Tariki-A wellsite onto and into land and into and
unnamed tributary of the Mako Stream in the Waitara
catchment
June 2003 2033
Tariki-B 3680-2
To discharge treated stormwater, uncontaminated treated
site
Council for these Companies.
A separate report covers the results of the Council's monitoring programmes
associated with the air discharge permits held by some of these industries2.
The lower Waiwhakaiho River has been identified by the Council as a resource of
regional significance that has demonstrated evidence of adverse impact from
catchment-wide point and diffuse source pollution and other river usage. This is
apparent particularly during periods of low flow accentuated by abstraction
the slope, the wider the buffer should be.
Examples of vegetated buffers.
Where do I measure the buffer distance from?
The 5m buffer must be measured from the edge of the bed for rivers and lakes.
This is measured from where the river reaches its fullest flow without overtopping
its banks. Speak to your Regional Council for help on measuring buffers from
wetlands. The aim is to avoid winter grazing in wet areas. If in doubt, be
conservative and put in