Area grade: D
What makes up this grade?
The overall grade is made up of five indicators:
Water quality: Water samples are tested for temperature,
oxygen concentration, turbidity and the levels of pH, ammonia and nutrients
(nitrogen and phosphorus). The results of this testing are compared against
guidelines for Auckland to produce a water quality index.
Flow patterns: This involves monitoring the hydrologic
connectivity of the river to upstream and downstream reaches and the floodplain
using the Stream Ecological Valuation (SEV), which is a method of assessing the
ecological health of our rivers.
Nutrient cycling: This involves monitoring the inputs and
processing of minerals, particulates and contaminants using the SEV
Habitat quality: This involves monitoring the
diversity and quality of habitats using the
SEV habitat provision
Biodiversity: Field assessments and samples are collected to
assess the type and amount of native plants and animals using the SEV
- The reporting Area covers 271KM2 representing 5.5% of the region
– the eighth largest reporting area
- Land cover is mainly pastoral vegetation (78%) but it also contains the region's largest area of horticultural land (4072HA)
- The extent of impervious surface (hard surfaces) is LOW (4%) when compared
with the regional average of 9%
Monitoring background and interpretation
Auckland Council’s State of the Environment (SoE) monitoring programme has
been building a record of Auckland’s environment for more than 25 years. This
information is critical to the effective management of Auckland’s natural
environment, after all, you can’t manage what you don’t monitor.
The monitoring programme shows there is a strong relationship between the
health of rivers and the type of land cover in the surrounding catchment. Rivers
that drain through forested catchments (particularly native forests) typically
have excellent water quality and ecology, while rivers that drain from urban
catchments typically have poor water quality and ecology.
The Pukekohe reporting area is predominantly pastoral land use, but with a
large area of intensive horticulture. As a result, the health of the area’s
rivers is considered to be impaired. Rivers in this area tend to have riparian
margins with some trees and bush, which provide shade, leaf litter and woody
debris to the stream and anchor the stream banks. The debris enhances the
quality of habitat for flora and fauna, although much of the original riparian
vegetation has been removed to allow more intensive land use. The low level of
urban development means there is little channel modification or pollution from
discharges or stormwater, although there may be diffuse sources of contaminants
from the pastoral and horticultural land use and physical damage from stock
Wai Care Franklin
Wai Care is a water quality education, monitoring and action programme
managed by Auckland Council, for schools and community groups in the Auckland
The programme aims to educate people about freshwater issues and encourage
and facilitate action in the local community, from water quality monitoring to
streamside planting and litter clean-ups.
The following table shows achievements of the Wai Care Programme in Franklin
during the 2015/2016 financial year.
|Students involved in education||1259||11118|
|People involved in action||761||4217|
|Native trees planted||5150||28577|
For more information on Wai Care,
or to view site data for your area, go to waicare.org.nz
or call 09 301 0101 and ask for Wai