Kaihihi Road and SH45. It is clear from the topography of the
overflow area that this has occurred many times in the distant past.
Whilst these overflows are uncommon, with large volumes of gravel being transported by
the Stony River from its upper reaches and increases in rainfall arising from the effects of
climate change, they are likely to occur more regularly in the future.
Works required to reduce the risk of overflows causing future damage to the area were
undertaken as capital works
ensuring that it won’t leak out
• Remember that waste solvents can be recycled
• Store all paints, thinners and other liquids under
cover to prevent rainfall washing out pollutants
• If liquids must be stored outside, keep lids and caps
on containers and use a secure area to avoid
vandalism
• Keep all areas exposed to rainfall clean, and keep all
wastes out of stormwater drains
• Dispose of all waste via the sewerage system or a
commercial waste contractor.
Always have a
to be maintained in the Patea River
downstream of the dam, and allows for a lower minimum flow when less than normal
rainfall reduces inflows.
Conditions 9 to 12 define the minimum and maximum allowable lake levels for winter
and summer periods, specify the required spillway gate settings during a high lake
level, and allows for some flexibility in lake levels to allow for a short term electricity
shortage. When such a shortage occurs, the consent holder is required to notify
Council,
water and to do that for the duration of the
consent [only issued temporary and in exceptional
circumstances]
Water
Complete Sections
8 and 9 to 15
Note: All consents issued will require an exclusive discharge to land and full storage after
1 December 2022. This means that any consented discharge expiring in 2022 or later
must discharge to land when the consent is renewed.
Dual discharges may be allowed if the farm is in a high rainfall area
data were sorted into arrays for each individual year, and then ranked from the highest to
lowest values. After discarding the highest 5 (1) percent of the ranked values for each year
the next highest values for each year are the 95th (99th) percentiles
In this report the 95th (99th) percentiles of daily maximum gust speed will be called the
‘extreme intensity’. The frequency of daily maximum gust speed exceeding the 1972-2006
mean 95th percentile rainfall values will be called the
effective precipitation >1500mm;
50% of the cumulative rainfall volume fell between 400m and 1000m;
volcanic acidic dominant geology, and pastoral land cover.
and under-represent catchments with:
mean annual temperature ≥12°C;
mean annual effective precipitation <500mm and ≥1500mm;
50% of the cumulative rainfall volume fell above 1000m;
alluvium and soft-sedimentary dominant geology, urban, scrub, exotic and indigenous forest land
cover.
At a local
climate change out to 2100, would use an increase in peak flood flows of
approximately 20%. This is based on the latest NIWA report prepared for MfE (HIRDs V4). That report states for every
degree of temperature increase there is a corresponding 10.1% increase in rainfall (this is called the augmentation factor).
Using the RCP6 climate change scenario out to 2100 (the mid-range CO2 emission scenario) this gives a 2.0-degree
temperature increase or an equivalent increase in rainfall
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 purpose of MfE monitoring (as discussed in Section 3.3.1). All results within this
report are presented and discussed on a site-by-site basis for the sampling period. The
timing of high tide on
Ordinary Council Agenda May 2024
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