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
Figure 40 Average rainfall data for Taranaki, November 2018 to April 2019 49
Figure 41 Box and whisker plots of enterococci and specific conductivity at all sites during the 2018-
2019 season (SEM data only) 52
List of photos
Photo 1 Onaero Beach 11
Photo 2 Waitara East Beach 14
Photo 3 Waitara West Beach 17
Photo 4 Fitzroy Beach 20
page
vi
Photo 5 East End Beach 23
Photo 6 Ngamotu Beach 26
Photo 7 Back Beach 29
Photo 8 Oakura
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
significant rainfall
events.
13. The Company continues to be proactive in their response to objectionable odour identification, with
areas of the main storage shed closed to prevent odour release. Mesh doors that were installed during
the 2020/21 period continue to prevent mass air movement from within the shed. The Company also
maintains shelter belts/vegetative environmental buffers (VEBs), as a passive odour mitigation
technique. These buffers continue to establish and mature.
............................................................................................................................. 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
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Commercial in confidence
TABLES
Table 2.1:Haehanga Catchment
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
Figure 2 Daily hours where DO is greater than 0 g/m3 in Pond 1 and 2 9
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 (2020-2021) 13
Figure 4 Location of intertidal survey sites in relation to the outfall 14
Figure 5 Mean number of species per quadrat for spring surveys (1992-2020) 15
Figure 6 Mean Shannon-Weiner indices per quadrat for spring surveys (1992-2020) 15
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