Process description 3
1.3 Resource consents 5
1.3.1 Introduction 6
1.3.2 Programme liaison and management 6
1.3.3 Site inspections 6
1.3.4 Chemical sampling 6
1.3.5 Biomonitoring survey 8
2 Results 13
2.1 Inspections 13
2.2 Results of discharge monitoring 30
2.2.1 Surface water monitoring – Wetland treatment system discharge 30
2.2.2 Surface water monitoring – HHG000103 post mixing zone 30
2.2.3 Surface water monitoring of the Haehanga Stream and associated …
Opunake Beach and Middleton Bay).
The monitoring showed that no operational problems were associated with this wastewater
treatment scheme during the monitoring period. No overland flow from the wetland area and
minimal overflows from the trench disposal system occurred, with the upgraded reticulation
from the trench system operating as designed. The trend of a reduction in the use of the ocean
outfall continued following sewer system stormwater infiltration reduction and the late 2006
kohekohe, rewarewa, hinau, podocarp forest, the balance being recently retired from farming and
planted in native vegetation. The site is bordered by an unnamed tributary to the Waitara River. The
forest remnant provides good connectivity to other habitat in the local area, including; small pockets of
native forest, wetlands and riparian areas on adjacent farmland and along the Waitara River; the nearby
Tarata Conservation Area and Taramoukou Conservation Area, and; nearby KNE's: Ouapui Forest
system comprises three ponds. The first pond, which is anaerobic in nature, is designed to
capture the solid component of the discharge, and has an approximate holding capacity of 34,587 m³. The
second and third ponds are aerobic and have capacity for 10,350 m³ and 10,800 m³, respectively. The pond
treatment system has a combined capacity of approximately 55,737 m³.
The discharge from the pond treatment system flows through a tertiary treatment system in the form of a
wetland which is
Environment
Priority 2 – Sand Dunes and
Wetlands
Priority 4 – Threatened Species
Regional: Key Native Ecosystem
Regional
Ecosystem Loss:
At risk 20-30% left
Less reduced >50% left
Protection Status: Local Government
Catchment: Patea (343)
General Description
Patui forest remnants are located on privately owned land approximately 22 kms east of Stratford near
Makahu in east Taranaki. The site
Drainage
Rule 77: Diversion of water for the purpose of land drainage
Land drainage is a common activity within Taranaki. When the area to be drained is
small, and the amount of water to be diverted is not great, then the effects on the
environment will be minor and the activity should be permitted. The stated conditions
are written to ensure that any adverse effects are avoided, remedied or mitigated. This
rule excludes the diversion of water from wetlands listed in Appendix II, which is
discharge stormwater from a chemical
manufacturing complex to land via irrigation and
into a wetland at the headwaters of the Waitaha
Stream
14 24 Sep 2015 01 Jun 2032 Jun 2026
4021-3.0 discharge to
air
To discharge emissions into the air from the
manufacture of formaldehyde solution and urea
formaldehyde resin, together with emissions
from associated activities at the plant premises
12 26 May 2015 01 Jun 2032 Jun 2026
Arxada NZ Limited 4059-5 discharge to
air
To
use of water as a receiving
environment for contaminants. This includes
treated wastewater, even though it may be
“clean”, the discharge may still be culturally
unacceptable. Diluted contaminants are still
contaminants, which harm the mauri and
wairua of water.
Application of all discharges (treated or
untreated) is to be to land. Methods to
achieve this include better utilisation of the
engineered wetland onsite to treat
contaminants and utilisation of the already
consented
The forest is in good condition with a dense
mix of canopy and understory species. A common suite of indigenous species have been identified at
the site, which provides good stepping-stone habitat between other forest fragments and wetlands in the
area. There is no running water or wetland areas, though soil conditions are damper at the seaward
ends of the fragments.
Ecological Features
Flora
The canopy of the forest remnant is dominated by tawa,
Beach and Middleton Bay).
The monitoring showed that no operational problems were associated with this wastewater
treatment scheme during the monitoring period. No overland flow from the wetland area and
no overflows from the trench disposal system occurred, with the upgraded reticulation from
the trench system operating as designed. The trend of a reduction in the use of the ocean
outfall continued following sewer system stormwater infiltration reduction and the late 2006
installation of a