SITEDESCRIPTION............................................................................................... . 6
2. 1 Location...............................................................................g
7 "' ^mate--------------------............................. -..... -..... -.........................................................................7
2. 3 Hydrology/Hydrogeology...................................................................................7
Table 1: Kaka Road Rainfall Events
Daily abstraction volumes under consent 7470-1.2 (July 2009-June 2017) 10
Figure 5 Maximum daily abstraction rate under consent 7470-1.1 (July 2009-June 2017) 10
Figure 6 Observed groundwater levels GND2102 and rainfall (July 2016-June 2017) 11
Figure 7 Observed groundwater levels GND2102 and abstraction (July 2016-June 2017) 11
Figure 8 Observed groundwater levels GND2103 and rainfall (July 2016-June 2017) 12
Figure 9 Observed groundwater levels GND2103 and abstraction
Table 2: Estimated land use 2015 (ha) Source: TRC.
Rainfall
Land use
<1500mm
(ha)
1500-2500
(ha)
>2500
(ha)
Total
(ha)
Dairy 86,000 62,000 25,000 172,000
Dairy support 7,000 7,000 2,000 16,000
Sheep and beef 19,000 19,000 4,000 41,000
Other 19,000 21,000 70,000 111,000
Total 131,000 110,000 100,000 341,000
While there has been a decrease in sheep and beef sectors, it is unclear why this has
Activity 4...................................................................................................................................................................... 16
Maths ...................................................................................................................................................................... 16
Taranaki Regional Council monthly rainfall and river report ................................................................................ 17
for
devices outlet structures.
page
- 5 -
Hayden Easton Final
4.3 I reviewed rainfall records provided by the TRC for the automated
rainfall monitoring station Uruti @ Kaka Road1. Figure 1 below presents
the hourly rainfall totals two weeks prior to and on the day of my site
visit.
Figure 1: Cumulative rainfall recorded at the Taranaki Regional Council
operated rainfall station (Uruti @ Kaka Road) two weeks prior to my site
visit conducted on 4 February 2021.
page
Month May June July August September October November December January February March April April
Days in Month 31 30 31 31 30 31 30 31 31 28 31 30 30 Pad area m
2
Runoff m
3
Uruti Virtual Climate Station 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 52.65 878.60 Rainfall Pad 1 7,765 1 7765 0.25 1.94
Kaka Road Climate Station Rainfall mm Average 205.40 194.90 199.20 196.50
.................................................................................................................................................. 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
trend analysis of median enterococci data at Ohawe Beach 44
Figure 36 Average rainfall data for Taranaki, 1 November 2019 to 31 March 2020 45
Figure 37 Box and whisker plots of all SEM enterococci data at all sites during the 2019-2020 season
presented on a logarithmic scale (see Table 4 for site codes) 47
List of photos
Photo 1 Onaero Beach 11
Photo 2 Waitara East Beach 14
Photo 3 Waitara West Beach 17
Photo 4 Bell Block Beach 20
Photo 5 Fitzroy Beach 22
Photo …
3.1 Water balance method.............................................................................................9
3.2 Site Selection.........................................................................................................10
3.2.1 Rainfall and potential evapotranspiration .................................................10
3.2.2 Soil Types.................................................................................................. 11
3.3 Irrigation
daily average results fell
into the Ministry's 'excellent' or 'good' categories and 41% of the results met the 'acceptable'
category. Six daily results from the total 138 of days monitored fell into the ‘alert’ category. It
is noted that all of those six results happened during moderate to heavy rainfall events, and
in the majority of cases, during fresh onshore winds. These findings confirm those of the
previous inhalable particulate surveys that found sea salt spray to be a major PM10 source.