2020/21 2021/22 2022/23 Capital
Environment - 11.900 17.291 17.295 17.799 -
Protecting Lakes, Rivers and Lands from Invasive Pests and Weeds
13. Led by the Minister for Land Information, this $7.5 million initiative aims to minimise
the high risk of major pest and weed outbreaks in many iconic lakes, rivers and lands
stewarded by the Crown. This will be done by providing for the acceleration and
enhancement of existing biosecurity programmes, and prioritisation of key sites.
consents 6
1.4 Monitoring programme 11
1.4.1 Introduction 11
1.4.2 Programme liaison and management 11
1.4.3 Site inspections 11
1.4.4 Discharge and water quality sampling 11
1.4.5 Review of supplied flow and discharge data 11
1.4.6 Fish survey 11
2 Results 12
2.1 Inspections 12
2.1.1 New Plymouth 12
2.1.2 Okato 12
2.1.3 Oakura 13
2.1.4 Waitara industrial intake weir (contingency take site) 13
2.1.5 Inglewood 13
2.2 Discharge and receiving water
at
the more popular Mana Bay adjacent to the river mouth were detected in terms of compliance
with contact recreational standards which were achieved throughout the summer-autumn
period. Poorer bacteriological water quality under higher river flow conditions following wet
weather periods were not further impacted by the discharges from the Patea system during
spring and early winter.
This report also addresses monitoring of the use of the STDC stock truck wastewater disposal
system near
.................................................................................................................. 14
3.1.1.4 Stony River ............................................................................................................................... 15
3.1.2 General comments .................................................................................................................................. 16
3.2 ‘Control’ sites with source of flow outside Egmont National Park (RPOP) .......................................... 17
3.2.1 How well do these predictive relationships work?
the season. Seven of these sites had counts
which entered the ‘Action’ mode, a slight increase in the number and frequency of guideline
exceedances in comparison with many previous seasons’ results and coincidentally these
page
were more frequent during the extremely low flow conditions experienced in the latter half
of the season.
To a certain extent these exceedances were probably a feature common to the mid and lower
reaches of rivers and streams draining developed
pastoral farming, with over 60% of the total
land area of the region in grassland or crops. A little under 40% of the land area is covered
by indigenous or exotic forest in either private or public ownership. Approximately 0.5% of
the land area is covered by urban areas, rivers and lakes.
Overall, our region is blessed with few significant problems associated with our soil
resource. Pressures associated with land uses on erosion-prone land are principally confined
to the hill country, but even
figures, fish pass water level and Punehu Stream flow between 1
February 2017 and 6 February 2017 16
Figure 5 Fish pass water level data, July 2016 – June 2017 17
List of photos
Photo 1 The Waiaua River, weir, intake, canal, fish pass and Lake Opunake, as viewed from the State
Highway 45 Bridge, Opunake. 4
Photo 2 Opunake Power Limited scheme on the Waiaua River 5
page
1
1 Introduction
1.1 Compliance monitoring programme reports and the Resource
wastewater discharge continued to confirm significant
improvements in the biological ‘health’ of the Mangawhero Stream and further downstream
in the mid-reaches of the Waingongoro River. Aspects of biological water quality ‘health’
under low flow conditions were much improved compared with pre-wastes diversion
monitoring periods, through the Mangawhero Stream and extending into the Waingongoro
River downstream of their confluence. The state of the environment longer term (seventeen-
year) trends of
Figure 6 River flow in the Waiwhakaiho River during the survey period 15
Figure 7 E. coli numbers for the Waiwhakaiho River at Merrilands
Domain during the regular survey season 16
Figure 8 Box and whisker plots for all summer SEM surveys of E.coli bacteria
numbers in the Waiwhakaiho River at Merrilands Domain 17
Figure 9 LOWESS trend plot of median E.coli numbers at the Waiwhakaiho
River, Merrilands Domain for the 1996 to 2012 period 18
Figure 10 E. coli numbers for the
of Taranaki Iwi with a statutory area, in
accordance with section 37.
Application of statutory acknowledgement and deed of recognition to river or stream
(1)If any part of the statutory acknowledgement applies to a river or stream, including a
tributary, that part of the acknowledgement—
(a)applies only to—
(i)the continuously or intermittently flowing body of fresh water, including a modified
watercourse, that comprises the river or