.................................................................................................................................................. 8
2.3 CLIMATE .................................................................................................................................................... 8
Table 2: Kaka Road Rainfall Events 2011-17 ............................................................................................. 10
Table 3: High Intensity rainfall data (NIWA) for site ................................................................................ 10
2.4 HYDROLOGY / HYDROGEOLOGY
wet weather from mid July to early
August 2008 resulted in further intermittent overflows of very dilute, treated wastewater to
the stream until mid August 2008. Similar intermittent overflows were recorded after very
wet weather late in the 2009-2010 period, over a four week period in September 2010 and
again, more briefly late in the 2010-2011 period. Seven intermittent overflows, each of one to
four days duration, occurred following heavy rainfall events in the 2011-2012 period. One
nitrogen concentration in the pond and the rainfall 30 days prior to the
sampling event. This was based on 7 ammoniacal nitrogen concentrations
measured between October 2017 and April 2019. The relationship has an
R2 value of 74%.
Using this relationship, the monthly rainfall from 2018 was used to
calculate monthly nitrogen concentrations in the pond. The concentration
was converted to a loading rate in kg/ha/month based on the volume
irrigated (calculated from 2018 irrigation hours and an
State of the Environment Report 2015
your descriptions of inherent vulnerabilities for each land unit includes:
the biophysical feature or features relating to the inherent vulnerability (this may be included in
the land unit description), e.g., landform, climate.
the specific nature of the feature or features that may give rise to vulnerabilities to freshwater
(this may also be included in the land unit description) e.g., siltstone hill-country in a high-
rainfall area that is prone to shallow slipping.
the
currently monitored by TRC on a regular long-term basis. In addition, the Northern
Hill Country FMU is under-represented in the monitoring network with only one monitoring site.
At a catchment level, the monitoring sites generally over-represent catchments with:
mean annual temperature <12°C;
mean annual effective precipitation >1500mm;
50% of the cumulative rainfall volume fell between 400m and 1000m;
volcanic acidic dominant geology, and pastoral land cover.
change
As the impacts of climate change
intensify, we are considering how
we can best support climate
action in Taranaki.
What are the issues?
Climate change will have wide-ranging impacts on
Taranaki. Temperature is expected to increase by
between 0.5°C and 1.5°C by 2040, while rainfall will
become more variable, increasing both the risk of
drought on one hand, and the risk of floods on the
other. Sea-level rise will increasingly threaten coastal
REMEDIATION NZ LTD Page 7
Document No: RU-P-650-0500-A
Revision No: V1.3
Date: 1 0-9-2018
Controller: C Kay
page
Leachate & Stormwater
Management Plan
f) Any conspicuous change in the colour visual clarity;
g) Any emissions of objectionable odour;
h) The rendering of fresh water unsuitable for consumption by farm animals; and
i) Any significant adverse effects on aquatic life.
3.4.3 Climate
NIWA virtual Climate Station -38.975, 174.525 Thirty years of rainfall and
groundwater beneath the Uruti Composting
Facility Site are moderately impacted with Chloride contamination
Site layout, hydrogeological interactions, soil types and rainfall also influence the level of
Chlorides observed in the soil, groundwater resources and the Haehanga Stream
environment
Offsite impacts have not been quantified and where not part of the scope of this report
The Uruti Composting Facility Management Plan was developed to improve the performance of the
composting