2020) 9
Figure 4 Observed groundwater levels GND2102 and rainfall (July 2019-June 2020) 10
Figure 5 Observed groundwater levels GND2102 and abstraction (July 2019-June 2020) 11
Figure 6 Observed groundwater levels GND2103 and rainfall (July 2019-June 2020) 11
Figure 7 Observed groundwater levels GND2103 and abstraction (July 2019-June 2020) 12
Figure 8 Observed groundwater levels GND2119 and rainfall (July 2019-June 2020) 12
Figure 9 Observed groundwater levels GND2119 and …
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
moderate temperatures and regular rainfall, but when the rainfall is heavy it can
cause flooding and landslips. In periods of low rainfall, the region can experience droughts. In some parts
of the region, and at certain times of the year, storms and tornadoes are a reasonably frequent occurrence.
Coastal erosion
Coastal erosion is the retreat of the shoreline caused by water currents, waves, and wind. It is a natural
process that can be influenced by human activity. The Taranaki coastline
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
abstraction volumes under consent 7470-1.1 (July 2015-June 2016) 12
Figure 3 Maximum daily abstraction rate under consent 7470-1.1 (2015-2016) 13
Figure 4 Daily abstraction volumes under consent 7470-1.1 (2009-2016) 13
Figure 5 Maximum daily abstraction rate under consent 7470-1.1 (2009-2016) 14
Figure 6 Observed groundwater levels GND2102 and rainfall (2015-2016) 15
Figure 7 Observed groundwater levels GND2102 and abstraction (2009-2016) 15
Figure 8 Observed groundwater levels and rainfall
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
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