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Doc. No: 2747617
TARANAKI REGIONAL COUNCIL MONTHLY RAINFALL AND RIVER REPORT FOR March 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
consent. The site has not been used in recent years.
The discharge site is approximately 120m long and 25m wide, and is shown in Figure 1.
Pātea Beach is an elevated site which for most of the year is dry. Rain that does fall on the site drains away
at a very rapid rate. The site does not suffer from flooding from rain or tidal action, due to its elevation.
1 The Council has used these compliance grading criteria for more
LRT000450 LRT000300 LRT000450
21 Oct 2021 76.95
Overcast; rain in
last week No wind No wind
Slightly turbid,
green-brown; flat
Slightly turbid,
green-brown; flat
21 Feb 2022 77.35
Heavy rain week
prior, warm, calm,
dry
No wind
Light
breeze Turbid, brown, flat Turbid, brown; flat
21 Mar 2022 76.47
Moderate rain,
heavy rain
overnight, overcast
Light
breeze
Light
breeze
Clear, dark green;
rippled
Slightly turbid,
brown; rippled
29 Jun
The year began with Taranaki's second driest January ever, with none of our monitored sites getting even a third of their normal rainfall for the month. Totals ranged from 8% to 29% of normal, with an average of 17%, and our monitored sites recorded rain only on three to seven days during the month. Stratford recorded just 13.5mm, its lowest January total since records began in 1998. Our monitored sites on Taranaki Maunga recorded 17% to 23% of their normal Janary rainfall, with rain on five to
Autumn arrived in Taranaki in March with an average air tempeature of 14.5°C - 1.7°C cooler than normal. The highest temperature was 25.7°C at Inglewood at Oxidation Ponds. There was an average of 95.9mm rainfall – 14% less than usual – although there were some big downpours on te Maunga with 374.5mm at the North Egmont Visitors Centre and 351mm at Dawson Falls. There was 41% less rain at Brooklands Zoo at New Plymouth and 33% more at Kotare at OSullivans. Mean river flows for March were 38.7%
amend the
current consent. The site has not been used in recent years.
The discharge site is approximately 120m long and 25m wide, and is shown in Figure 1.
Pātea Beach is an elevated site which for most of the year is dry. Rain that does fall on the site drains away
at a very rapid rate. The site does not suffer from flooding from rain or tidal action, due to its elevation.
1 The Council has used these compliance grading
for municipal and rural water supply.
Did you ever wonder why many rivers have
water in them when it hasn’t rained for days or
weeks, there’s no snow melting, and the
ground is dry? The rivers are being filled up by
water coming from out of the ground in the
form of springs and seepages which brings us
on to the topic of groundwater.
Groundwater facts
Groundwater is water which occurs in
formations below the earth’s surface. In
Taranaki we use 44,022m3 per day but
recharge
January was warmer than usual while rainfall for the month was just slightly above normal – but with some big differences across the region. Waitotara at Ngutuwera had 53% less rain than usual while Uruti at Kaka Rd had 39% more. The average rainfall for the region was 108.4mm, 2% more than usual. The average air temperature for the region (excluding Te Maunga sites) was 18.2°C, which is 0.6°C warmer than long-term January averages. The highest temperature was 30.3°C at Waitotara at Hawken Rd.
were discharged to the site.
1.4.4 Chemical sampling
Patea Beach is an elevated site which for most of the time is dry. Rain that does fall on
the site drains away at a very rapid rate. The site does not suffer from flooding from
rain or tidal action, due to its elevation. Monitoring over the past three years noted no
discharge of leachate or liquids from the base of the dune as a result of the discharge.
Therefore, no water quality samples were programmed or collected at the site
typical example.
Water Rain: - raindrops falling on bare earth wash the soil away. The rain soaks into
the soil making it heavier and causing it to sometimes slip away.
Sea: -waves crash against the coast, grinding rocks into sand and cutting back
the edge of the coast. Coastal drift carries the sand along the coast to calmer
water where it builds beaches.
Rivers: - the force of the flow cuts away at the banks of the river causing them
to become undercut and fall