Report 2017-2020.
5.2 It was noted that Council would like to increase the number of monitoring bores,
especially within the eastern parts of Taranaki, to improve understanding of areas
where there is limited data and information.
5.3 Water allocation in the region is well within current allocation limits and monitoring
shows that groundwater levels are generally stable, with fluctuations the result of
seasonal rainfall and pumping effects. It was noted that we are already starting to see
6). Contrary to historical
data, the upstream site had higher E. coli numbers, with counts 10m downstream of the unnamed tributary
lower than both upstream and the stream at the beach sites. As the Wai-iti Stream is surrounded by
farmland, it is therefore unlikely that high FIB counts were only attributed to the WWTP in operation.
Additionally, the area experienced moderate to heavy rainfall from early to mid-morning three days prior to
sampling. The accumulation of agricultural, stormwater
groundwater beneath the Uruti Composting
Facility Site are moderately impacted with Chloride contamination
Site layout, hydrogeological interactions, soil types and rainfall also influence the level of
Chlorides observed in the soil, groundwater resources and the Haehanga Stream
environment
Offsite impacts have not been quantified and where not part of the scope of this report
The Uruti Composting Facility Management Plan was developed to improve the performance of the
composting
silty-clay
. Due to high rates of irrigation loading, shallow groundwater beneath the Uruti Composting
Facility Site are moderately impacted with Chloride contamination
. Site layout, hydrogeological interactions, soil types and rainfall also influence the level of
Chlorides observed in the soil, groundwater resources and the Haehanga Stream
environment
. Offsite impacts have not been quantified and where not part of the scope of this report
The Uruti Composting Facility Management Plan was
............................................................................................................................. 10
APPENDIX A MONITORING WELLS- REMEDIATION NEW ZEALAND- URUTI .......... 11
APPENDIX B MONITORING BORE INSTALLATION .................................................... 13
APPENDIX C SOIL MOISTURE AND RAINFALL RECHARGE ON CHLORIDE
CONCENTRATIONS IN GROUNDWATER ............................................. 15
APPENDIX D PRELIMINARY UNCONFIRMED CONCEPTUAL SITE MODEL ............... 1
page
Commercial in confidence
TABLES
Table 2.1:Haehanga Catchment
plan, prepare and adapt to a changing climate
in Taranaki.
In considering weather and climate we are mainly interested
in sunshine, rain, wind and temperature data. This helps
guide decision-making around growing seasons, flood
management, fishing, swimming and surf conditions. River
flows are influenced by rainfall and temperature and tell us
how dry or wet a summer is. River flow measurements can
help us ensure water use is managed in a way that protects
Waitaha Industrial Catchment Annual Report 2023-2024
List of figures
Figure 1 Mangapouri Cemetery location map 4
Figure 2 Burial Plan for first five years of operation 9
Figure 3 Baseline groundwater elevations in comparison to rainfall 17
Figure 4 Baseline groundwater levels GND2624 18
Figure 5 Baseline groundwater levels GND2627 19
Figure 6 Baseline groundwater levels GND2625 19
Figure 7 Baseline groundwater levels GND2623 20
Figure 8 Baseline groundwater levels GND2484 20
Figure 9 Baseline groundwater
the 2018-2019 monitoring year, with most
commencing irrigation in November or December and concluding for most in March. Rainfall recorded at
the Council’s monitoring locations over the summer irrigation period ranged between 58% and 111% of
historical mean values. A particularly dry October, along with warm coastal winds, caused soils to dry out
faster than normal which resulted in high irrigation water demand. Total usage during the 2018-2019
irrigation season, with a total water use across
the rainfall recorded at the Council’s monitoring locations ranged
between 100 % and 158% of historical mean values. This meant that many rivers and streams were running
above mean annual low flow conditions for the period. The higher than normal stream flows meant that
there was only a small amount of monitoring required to ensure ecological flows were maintained in those
waterways being used to supply water for irrigation. During the period under review, compliance with
residual flow