pruning is not practised to produce framing timber because Douglas-fir has many small branches and pruning costs are twice as much per tree as radiata Douglas-fir (Pseudotsuga menziesii) 8 Fifty-five year old stand of Douglas-fir page pine. If trees are pruned to produce clear-wood, a crown height of 5-6 metres should be left. Current silviculture regimes aim to produce high strength timber over a 45 year rotation using initial stocking rates of 1500-1600stems per hectare (sph).
Lake Rotorangi is determined each year, through four water quality monitoring surveys and through phytoplankton surveys (conducted simultaneously with the water quality surveys). A previous benthic invertebrate survey and a three-yearly macrophyte (aquatic weeds) survey conducted in autumn 2015 are also reported, for completeness. Based on these surveys and studies, the lake’s condition continues to be classified as mesotrophic, with a very slow and insignificant rate of increase in trophic
consent to discharge emissions into the air at the plant site. The consent to emit to air was replaced in May 2016. During the monitoring period, ANZCO demonstrated a generally good level of environmental performance. Monitoring is carried out by both ANZCO and the Council. ANZCO monitors water abstraction rate, effluent flow rate and composition, receiving water quality, odour at the plant boundaries, and effluent loadings, soil, and herbage for irrigation areas. The Council undertakes
resources. 1.1.4 Evaluation of environmental and administrative performance Besides discussing the various details of the performance and extent of compliance by the Company, this report also assigns them a rating for their environmental and administrative performance during the period under review. Environmental performance is concerned with actual or likely effects on the receiving environment from the activities during the monitoring year. Administrative performance is concerned with the
rainfall for the Waitara catchment is expected to be about 2,200 mm. A catchment-wide mean annual rainfall of about 3,200 mm is estimated for the Manganui River based on the recorded mean flow at Everett Park (19.5 m3/s). In a normal year, significant rainfall occurs in every month of the year, with the three months from January to March receiving roughly 30% less rainfall than other months on average. This lower rainfall period coupled with the higher temperatures and evapo-transpiration rates in
review can be summarised by the following main points: Surface soils across the site are dominated by semi-porous silty clay-loams, overlying more impervious clay soils Soils below 2000 mm have not been characterised Chloride concentrations in the soil beneath the irrigation zone are highly elevated compared to non-irrigated areas The shallow groundwater table is in direct connection with semi-porous loamy silty-clay Due to high rates of irrigation loading, shallow
administrational performance has been rated as Good, as although the performance against most consent conditions with respect to the administrative compliance was high, issues around testing of the integrity of the water take pipeline and meeting the requirements of the Resource Management (Measurement and Reporting of Water Takes) Regulations 2010 are yet to be resolved. Methanex have been open and participative in their communication with regard to their progress on these issues. For reference, in
comprising 18% of the district’s population. Iwi and hapū of the Taranaki region are Ngāti Maniapoto, Ngaa Rauru Kiitahi, Ngāruahine, Ngāti Maru (Te Iwi o Maruwharanui), Ngāti Mutunga, Ngāti Ruanui, Ngāti Tama, Taranaki Iwi, and Te Atiawa. In June 2020, Taranaki’s unemployment rate was at 4.3% with only small variations from one district to another (compared to 4% nationally). Households without access to a motor vehicle is highest in New Plymouth district (7.2% of
to the Council on a monthly basis. The raw water abstraction rate from the Waitara River for the Motunui plant was measured continuously and the plant effluent was monitored for a number of parameters with frequencies ranging from continuously (flow and pH) to monthly (trace metals). Abstraction of raw water from the Waitara River and effluent discharges at the Waitara Valley plant occurred sporadically during the monitoring period, and records were provided when this occurred. Monthly
rating as to each Company’s environmental and administrative performance during the period under review. The rating categories are high, good, improvement required and poor for both environmental and administrative performance. The interpretations for these ratings are found in Appendix II. For reference, in the 2021-2022 year, consent holders were found to achieve a high level of environmental performance and compliance for 88% of the consents monitored through the Taranaki tailored