There were plenty of April showers last month with nearly 775mm of rain at the North Egmont Visitors Centre and 574.5mm at Dawson Falls. Rainfall was on average 101.8% of the long-term average, and ranged from 65% at Taungatara at Eltham Rd and Oeo u/s Awatuna Wetland, to 192% at Matarawa at Matarawa Valley. Year to date rainfall is sitting between 103% (Mangati at SH3) and 206% (Matarawa at Matarawa Valley) with an average of 139.7% of normal. Mean river flows were 133.8% of typical values,
page
Doc. No: 2813485
TARANAKI REGIONAL COUNCIL MONTHLY RAINFALL AND RIVER REPORT FOR June 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 Egmont
rivers including all NOF criteria.
Attribute
criteria
Total no.
sites
Attribute grade
A B C D E
% >540 22 2 0 2 9 9
% >260 22 3 1 0 7 11
Median 22 4 N/A N/A 7 11
Q95 22 2 1 0 19 N/A
Overall grade 22 2 0 1 7 12
The assessment shows that only three out of the 22 monitoring sites meet the minimum standard (band C;
based on the national swimmability target), while the remaining 19 sites fall within band D (7 sites), or band
E (12 sites). The two
page
Doc. No: 2906170
TARANAKI REGIONAL COUNCIL MONTHLY RAINFALL AND RIVER REPORT FOR October 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
the best
level of control. The technicians use weather forecasting to predict the lime dose,
for example reducing the lime does set point if heavy rain is forecast. However,
the weather forecasts have not always eventuated which sometimes results in
quadrants being under-dosed. The technicians continue to focus on pH control
to achieve target dose ranges.
• The outfall pump station was working well and only routine maintenance work
was required to be undertaken.
• NPDC
page
Doc. No: 2955756
TARANAKI REGIONAL COUNCIL MONTHLY RAINFALL AND RIVER REPORT FOR December 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 (%)
Maximum December
RF (year occurred)
(mm)
Total to date (mm)
% of Normal for year
to
and
leachate.
page
6
2. Results
2.1 Inspections
The site was inspected on two occasions. The inspections focussed on the type of
material being discharged, discharge site stability and leachate/stormwater control.
7 November 2012.
A site visit was made to conduct a compliance monitoring inspection. The weather
was fine with no rain falling over the previous 48 hours. There did not appear to be
any new greenwaste discharged at the site since the
figure of 43mm of rainfall per hour will be utilised. This is a very
consen/ative figure as values for the top 30 occurrences range from 8.0 to 15mm with the
average being 9.4mm (refer Table 2)
Runoff of the falling rain will be influenced by the site's runoff coefficient. This has been
calculated to be 0.7. Remediation (NZ) Ltd considers this coefficient to be a conservative
runoff coefficient as the papa base provides a very high degree of impermeability.
Pad 1 & 3 (shared stormwater
contours (3) orientation to the sun.
g) Discharge point design
Dispersion of discharges is enhanced by:
increasing the height of discharge points;
avoiding the use of conical rain shields over the
top of discharge stacks;
increasing vertical exhaust velocities by
appropriate fan speeds, fan sizes, and shaft
sizes;
the use of vertical discharge fan units with
minimal obstruction to the outside shaft’s
airflow;
tunnel
The rain stayed away from Taranaki Maunga in December with just 60% of the long-term average recorded at North Egmont. It was a different story in the Eastern Hill Country with 194% at Mangaehu at Bridge. Across the region, rainfall was 109% of the long-term average. Total rainfall for 2022 ranged from 112% (Kotare at OSullivans) to 158% (Kapoaiaia at Lighthouse) with an average of 128.6% of normal. Mean river flows for December were close to typical December averages at around +19.6% while