and Waiwhakaiho
River at SH3). There has been a significant long term improvement in total nitrogen at six of
the eleven sites monitored. Long term trends for faecal coliforms and enterococci bacteria
showed four statistically significant changes over the 19-year period (mainly deterioration
located at lower catchment sites). Significant deteriorations in black disc clarity were
recorded at three sites, two of which reflected historical erosion events in the headwaters.
The most improvement
health risk when the
wastewater discharges into the sea. Norovirus infections
can result from ingesting contaminated seawater;
however, there is a higher risk of infection from consuming
raw shellfish.
Between 2015 and 2020, five out of the eight mussel
samples collected from Waiwhakaiho Reef were
contaminated with norovirus, although mostly at low
concentrations. Over the same period, all seven samples
collected from Tiromoana Reef, just north of Bell Block,
................................................................................................................... 64
5.38 Trustpower ............................................................................................................................ 64
14 Appendix II ................................................................................................................................ 65
14.1 Waiwhakaiho River ............................................................................................................... 65
14.2 Kaupokonui River
(particularly phosphorus) in many of the middle and lower
catchments (e.g. the Mangaoraka Stream at Corbett Road, Punehu Stream at SH 45, and
Waiwhakaiho River at SH3). On the other hand, there has been a significant long term
improvement in total nitrogen at six of the eleven sites monitored, with only one site that is
showing deterioration in this measure. Long term trends for faecal coliforms and enterococci
bacteria showed statistically significant changes over the 20-year period for both species
step, the Council proposes to commit to an initial three-year
spending programme. A key element would be a large-scale predator control and suppression covering the
entire Waiwhakaiho catchment trial, foreshadowed in last year’s Annual Plan. Added to this would be another
trial aimed at completely eliminating possums in a 5,000-hectare area west of the mountain including public
conservation land and private land, and covering rural and built-up zones. A separate programme is also
Zealand Oil Services Ltd $3,416
OMV New Zealand Limited $3,562
OMV Taranaki Limited $3,562
CATCHMENTS - HONGIHONGI STREAM
Bulk Storage Terminals Limited $2,458
Molten Metals Limited $3,854
New Plymouth District Council $2,429
OMV Taranaki Limited (Inactive) $2,458
Port Taranaki Limited $2,249
Seaport Land Company Limited $2,066
Technix Bitumen Technologies Limited $2,066
Z Energy Limited $2,458
CATCHMENTS - LOWER WAIWHAKAIHO
AIRSHED
DIALOG Fitzroy Limited $11,131
Downer NZ
was
identified in the Regional Freshwater Plan for its regionally important recreational value.
The Waitara, Manganui, Patea, Waiwhakaiho and the Mangaehu Rivers were chosen as
examples of waterways with large catchments and multiple human impacts. The
Waingongoro River was included in the programme as a river under intensive usage and
the Waiongana Stream as a stream from which there is a major water abstraction. The
Timaru, Mangaoraka, Waiokura (added in 2007) and Punehu Streams were
Bacteria levels
are measured at most sites, and cyanobacteria (blue-green algae)
levels at a few sites.
• In summer 2015/16, 72% of all samples met the Ministry for the
Environment recreational water quality guidelines for bathing water.
• Wildfowl and gulls are the major source of contamination at the two
sites found to routinely exceed the guidelines, near the mouths of
the Waiwhakaiho River and Te Henui Stream. Excluding the two sites
contaminated by birds, 94% of all
Plymouth District Council Expiry Date: 01 Jun 2026
Private Bag 2025, New Plymouth 4342 Review Dates: Jun 2022, Jun 2024
Activity Class: Controlled
Location: 76 Colson Road, Waiwhakaiho Application Purpose: New
To discharge stormwater and sediment arising from earthworks into an unnamed
tributary of the Puremu Stream
Rohe:
Te Atiawa (Statutory Acknowledgement)
Engagement or consultation:
Te Kotahitanga o Te Atiawa Trust Provided with application …
resource consents and processes
Water
Supply
Scheme
Resource consent Next Review Expires Activity Process
New
Plymouth
0672 - Discharge 2020 2026 To discharge wastewater from a WTP into an
unnamed tributary of the Mangorei Stream.
Raw water is abstracted from the
Waiwhakaiho River via Lake Mangamahoe.
The Waiwhakaiho River is diverted through a
tunnel to augment the supply of Lake
Mangamahoe. The consent for this diversion
(2053) is held by Trust Power Ltd - Taranaki