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Appendix Z - Uruti composting facility nitrogen balance

nitrogen concentration in the pond and the rainfall 30 days prior to the sampling event. This was based on 7 ammoniacal nitrogen concentrations measured between October 2017 and April 2019. The relationship has an R2 value of 74%. Using this relationship, the monthly rainfall from 2018 was used to calculate monthly nitrogen concentrations in the pond. The concentration was converted to a loading rate in kg/ha/month based on the volume irrigated (calculated from 2018 irrigation hours and an

The Taranaki Region

climate, with abundant rainfall and high sunshine hours, makes the region lush, green and fertile. Rainfall Annual rainfall varies throughout the region. Some coastal areas receive less than 1,400 mm annually, while the summit of Mount Taranaki receives around 7,500 mm. Heavy rainfall events do occur and there can be extremes. In 2012 heavy rain caused a number of slips on the coastal road around Mount Taranaki, including a large slip at Oākura that covered the road, burying a

8FurtherinformationAppendixF2

REMEDIATION NZ LTD Page 7 Document No: RU-P-650-0500-A Revision No: V1.3 Date: 1 0-9-2018 Controller: C Kay page Leachate & Stormwater Management Plan f) Any conspicuous change in the colour visual clarity; g) Any emissions of objectionable odour; h) The rendering of fresh water unsuitable for consumption by farm animals; and i) Any significant adverse effects on aquatic life. 3.4.3 Climate NIWA virtual Climate Station -38.975, 174.525 Thirty years of rainfall and

Ordinary Council Meeting Agenda August 2022

maintenance of structure • R2/2708-3.1 Clark Peters Farms Limited – dairy effluent discharge. 2.3 Mr B Pope, Compliance Manager, in response to the question regarding Clark Peters Farms Limited, advised that every dairy effluent discharge application is assessed on a case by case basis and there are a number of environmental factors that are looked at including land area, land size, and rainfall in the area. 2.4 Mr K Holswich, Iwi Representative, noted that the reporting provided by

Remediation hearing - applicant's evidence - expert evidence (monitoring & nitrogen)

“Therefore the calculations provided by RNZ are extremely conservative, if not a completely unrealistic assessment of page 10 the effects of nitrogen”. In the defence of using the 225 g/m3 concentration I make the following points: A) The amount a nitrogen applied to the irrigation fields is a combination of the nitrogen concentration in the irrigation pond and the volume of fluid irrigated. In summer there is less rainfall and the evaporation from the pond

Dow Chemical NZ Ltd Annual Report 2022-2023

discharge point and receiving waters in the Herekawe Stream. Scheduled inspections were carried out on 20 July 2022, 8 December 2022, 26 January 2023 and 6 June 2023. Notes from these visits are summarised below. 20 July 2022 On site 14:00 to 15:00 with Corteva staff. Weather was cloudy with a moderate northerly wind. 18 mm of rainfall had been recorded over the previous week at the Brooklands Zoo station. Nīkau Contractors had commenced demolition of the above ground structures. The site

Fonterra Kapuni Annual Report 2022-2023

mass irrigated, 2009- 2023 48 Figure 37 Paddock annual nitrogen application rates for Farm 1 50 Figure 38 Paddock annual nitrogen application rates for Farm 2 51 Figure 39 Paddock annual nitrogen application rates for Farm 3 51 Figure 40 Monthly mass of nitrogen irrigated 53 Figure 41 Monthly rainfall totals and median soil moistures 53 Figure 42 Estimated monthly mass of phosphorus irrigated 53 Figure 43 Total nitrogen concentration of soil samples taken from the

Taranaki Irrigation Study

simulation model, developed by CSIRO, Australia. The value of pasture ($/kg-DM) was estimated using local farm parameters that were developed in consultation with Louise Hofmann, Taranaki FarmWise consultant. The results of that work showed that the values of pasture in the area range between $0.17 to $0.25/kg-DM, with an average value of $0.22/kg-DM. Based on these values the irrigation marginal benefits were calculated for a range of rainfall and soil combinations for three values of pasture:

Irrigation consent monitoring 2017-2018

monitoring year, with most commencing irrigation in November or December and concluding in February. Rainfall recorded at the Council’s monitoring locations over the summer irrigation period ranged between 55 % and 111% of historical mean values. A particularly dry November and December lead to a drought being declared in Taranaki during 23 December 2017. As a result, irrigation water demand was high during the 2017-2018 irrigation season, with a total water use across all exercised irrigation

Appendix H - Uruti composting facility management plan

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