months,
increased water temperature, reduced rainfall
and increased daylight hours provide ideal
conditions for cyanobacteria to grow, sometimes
resulting in algal blooms. When in bloom,
cyanobacteria can produce toxins that can pose a
risk to the health of people and animals entering
the water.
Sites monitored for benthic cyanobacteria were
suitable for recreational use on 20 of 77 (26%)
routine surveys, and elevated to a cautionary
status during one (<2%) survey. Conditions were
page
Doc. No: 2765952
TARANAKI REGIONAL COUNCIL MONTHLY RAINFALL AND RIVER REPORT FOR April 2021
Provisional Data Only
Note: some sites record a number of parameters
Table 1: Rainfall at 27 sites throughout the region
Station Sub-region
Monthly Year to Date
Records Began Number of rain
days (>0.5mm)
Total Monthly
Rainfall (mm)
% of Monthly
Normal (%)
Total to date
(mm)
% of Normal for
year to date
% of average full
calendar year
Nth
and coastal receiving
environments including rivers, lakes and estuaries.
Climate change is expected to exacerbate soil loss and present challenges to the future
management of erosion-prone land. It is estimated that extreme storm events resulting in
flooding and slips are likely to occur somewhere in Taranaki about once every five to six
years. In coming years, the region is expected to experience more frequent and intense
heavy rainfall events, increasing both the frequency and
2024 sample results, notably an increase of 40mS/m at ARW000999 (downstream location). This
increase is likely a result of the unusually low rainfall in the region, which has reduced the natural mixing
and dilution of stream water.
Figure 5 Potassium trend from April 2021 to March 2024.
Potassium levels also remained at a low level throughout the surface water monitoring, with the exception
of higher levels recorded at all sites in March 2024. As noted in previous reports, control site
than 0 g/m3 in Pond 1 and 2 8
Figure 3 Daily discharge volumes (m3/day) from the HWWTP and daily rainfall data (mm) from a
Council rainfall station located approximately 5 km east of the site (2021-2022) 12
Figure 4 Location of intertidal survey sites in relation to the outfall 13
Figure 5 Mean number of species per quadrat for summer surveys (1986-2022) 14
Figure 6 Mean Shannon-Weiner Indices per quadrat for summer surveys (1986-2022) 14
Figure 7 Location of shoreline water
allocated across FMU-A and FMU-B. All other aquifers
have insignificant volumes of water allocated (≤1 % of estimated sustainable yield). It is not foreseen that
there will be any increases in groundwater demand in the short to medium-term that would be sufficient
to place groundwater resources under any significant allocation pressure.
As would be expected, monitored groundwater sites display fluctuations in water level as a result of
seasonal variations in rainfall recharge. The
higher
than average rainfall the minimum separation distance between burial sites and the water table was not met
in some areas of the Cemetery.
During the year, NPDC demonstrated a good level of environmental and high level of administrative
performance with the resource consents
For reference, in the 2020-2021 year, consent holders were found to achieve a high level of environmental
performance and compliance for 86% of the consents monitored through the Taranaki tailored monitoring
other than in exceptional circumstances, is
workable and can be implemented in the majority (but not all) cases with moderate ease
and minimal cost in respect of being able to utilise existing pond storage systems.
• Those farms with high rainfall and large catchment areas and or high risk soils will struggle
to implement a solely land based effluent irrigation system and in some cases will never be
able to meet the requirements of land only application
• A universal
page
Document Number: 1551853
Taranaki June 2015 Flood Event
Taranaki Regional Council
Private Bag 713
STRATFORD
June 2016
page
Document Number: 1551853
page
Document Number: 1551853
Summary
The key points to be taken from the Taranaki June 2015 Flood Event are:
A high intensity rainfall event occurred between the 19-20 June and was concentrated
on
page
Month May June July August September October November December January February March April
Evaporation mm Average 31.12 21.41 25.43 39.04 57.48 85.05 109.32 126.01 134.46 107.97 88.65 52.65 878.60
Rainfall mm Average 181.20 189.51 181.83 178.04 175.35 188.38 149.39 149.04 120.00 107.02 119.22