Ordinary Council Agenda August 2024
Ordinary Council Agenda August 2024
Ordinary Council Agenda August 2024
Motukawa Hydroelectric Power Scheme - Hydrology Report Trustpower Ltd November 2021 Job No: 1008726 Phase 100 Table of contents 1 Introduction 1 1.1 Context 1 1.2 Scope of assessment 1 1.3 Scheme description 1 1.4 Hydrological nodes 3 2 Catchment characteristics and water resources 6 2.1 Waitara catchment 6 2.2 Manganui catchment 6 2.3 Rainfall 6 2.4 Hydrometric data 7 2.5 Water use in the catchment 8 2.6 Manganui River flows 12 2.6.1 Derivation of Manganui River flows at the intake
2024 sample results, notably an increase of 40mS/m at ARW000999 (downstream location). This increase is likely a result of the unusually low rainfall in the region, which has reduced the natural mixing and dilution of stream water. Figure 5 Potassium trend from April 2021 to March 2024. Potassium levels also remained at a low level throughout the surface water monitoring, with the exception of higher levels recorded at all sites in March 2024. As noted in previous reports, control site
page Doc. No: 2859146 TARANAKI REGIONAL COUNCIL MONTHLY RAINFALL AND RIVER REPORT FOR August 2021 Provisional Data Only Note: some sites record a number of parameters Table 1: Rainfall at 27 sites throughout the region Station Sub-region Monthly Year to Date Records Began Number of rain days (>0.5mm) Total Monthly Rainfall (mm) % of Monthly Normal (%) Total to date (mm) % of Normal for year to date % of average full calendar year Nth
boundary during any of the four routine inspections. Results of effluent monitoring With the diversion of wastes to the Hawera WWTP in the 2010/11 period, discharges from the Eltham WWTP now occur only as a result of high rainfall events that exceed the storage capacity of the primary and holding ponds, and the pumping capacity of the reticulated system to Hawera. Analysis of the primary pond effluent was not required during the monitoring period, although the condition of the pond and
months, increased water temperature, reduced rainfall and increased daylight hours provide ideal conditions for cyanobacteria to grow, sometimes resulting in algal blooms. When in bloom, cyanobacteria can produce toxins that can pose a risk to the health of people and animals entering the water. Sites monitored for benthic cyanobacteria were suitable for recreational use on 20 of 77 (26%) routine surveys, and elevated to a cautionary status during one (<2%) survey. Conditions were
page Groundwater quantity Rainfall or river water that seeps from soils into the pore spaces between fractures of solid rock or sediments, like sand or gravel, is known as groundwater. Groundwater is the largest source of accessible freshwater in the world, accounting for around 98% of freshwater available for use on Earth. While groundwater is generally hidden beneath the land surface, many of the region’s springs, rivers and lakes are sustained by groundwater
consent conditions occurred during the previous monitoring period and again during the period under review when, following higher than average rainfall the minimum separation distance between burial sites and the water table was not met in some areas of the Cemetery. An abatement notice (EAC- 24486) was issued on 28 March 2022 and NPDC are currently working with a consultant to improve drainage at the site to prevent any further breaches of the consent occurring. For reference, in the 2021-2022
levels GND2102 and rainfall (July 2020-June 2021) 9 Figure 5 Observed groundwater levels GND2102 and abstraction (July 2020-June 2021) 10 Figure 6 Observed groundwater levels GND2103 and rainfall (July 2020-June 2021) 10 Figure 7 Observed groundwater levels GND2103 and abstraction (July 2020-June 2021) 11 Figure 8 Historical groundwater level response and abstraction (2009-2021) 11 page 1 1 Introduction 1.1 Compliance monitoring programme reports and
components including site inspections, the collection as assessment of abstraction data, residual flow monitoring, water quality analysis, data review and compliance assessments. The specific range of monitoring carried out for each consent is dictated by the water source, weather and flow conditions, and system design. A total of 56 irrigation consents were exercised during the 2020-2021 monitoring year, with most commencing irrigation in mid-December and concluding late March. Rainfall