contributing waterways drain off the high, steep, unstable slopes of
Mount Taranaki and are capable of transporting large amounts of coarse sediment as bed load, as
well as fine sediment (TRC, 2011). Additionally, the orographic influence of Mount Taranaki results in
high local rainfall and attracts high intensity rainfall events in the headwaters of rivers originating on
the Maunga. This means sediment transport rates, and the frequency of sediment transport events,
are likely to be relatively high in the
timely results during the
holiday periods. Follow up samples were often collected following instances where enterococci counts
exceeded 140 cfu/100 ml.
During the 2017-2018 summer season, 89% of the 245 scheduled samples remained within surveillance
mode. January, February and March were the months where the highest proportions of samples exceeded
the MfE guidelines. These three months also received considerably higher levels of rainfall than normal.
Four of the five highest
with no unauthorised overflows to the stream of any nature. Two incidents of
stormwater/sewage overflows were reported in the Konini Street area of the township due
to surcharging of the reticulation under very heavy rainfall conditions. Reactivation of an
alarmed and telemetered overflow site has been necessary to alleviate sewage entry to
domestic property. Signage requirements have been recognised and provided for should
such events re-occur.
Pond microfloral monitoring which had
points (when allowed) the
Company is required to put out signs at predefined locations discussing limited access. At no point during
this monitoring period were lake levels below the usable range, therefore, any inability to use the ramp was
a result of maintenance issues. Boat ramp usability is discussed later in this report. During large rainfall
events the 78 m upper limit was briefly exceeded during this monitoring period. The Company is to
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13
endeavor to ensure
ocean and become a threat to
wildlife.
During the year under review some unacceptable material was dumped at the Pātea Beach green waste
discharge site, but it was removed promptly by STDC. There was no leachate observed discharging from the
sand dune area or the stockpiled green waste during the period under review, or in previous years. These
factors, combined with the sandy substrate and low rainfall at the beach should be restricting the
production of leachate from the green waste. It
application rates for Farm 1 56
Figure 47 Paddock annual nitrogen application rates for Farm 2 56
Figure 48 Paddock annual nitrogen application rates for Farm 3, fixed irrigator network 57
Figure 49 Paddock annual nitrogen application rates for Farm 3, travelling irrigators 57
Figure 50 Monthly mass of nitrogen irrigated 59
Figure 51 Monthly rainfall totals and median soil moistures 59
Figure 52 Estimated monthly mass of phosphorus irrigated 59
Figure 53 Total nitrogen
is owned by
the Company, and consists of steep eroded hillsides, multiple side gullies, and small river flats distributed
along its length. The area receives more rainfall than the northern Taranaki coastline to the south-west. Soils
are generally poor and highly erodible. Patches of bush and planted trees cover most of the hillsides, with
grasses over the remainder and the flats.
1.3 Process description
The Company’s operations include composting, quarrying and vermiculture operations
improvements. Rainfall in Taranaki does expedite run-off of E. coli and other contaminants
into waterways however, an assessment of earlier ‘dry-weather’ swim spot monitoring data
found that 11 out of 16 sites were still failing the minimum standard, indicating direct
contamination of waterways is a significant issue.
Ordinary Council - Update on changes to NPSFM and policy development programme
256
page
b. Sediment – eight of the 22 (36%) monitoring sites fall below the
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page
Site Monitoring
Purchased YSI hand held Multi Meter & YSI Photometer
Sample monitoring bores, streams and ponds every week
Update the sampling graphs weekly
Download the rainfall data weekly
Walk the streams weekly ..,.. I'1!i'I ...-"'-
YSI 9300 and 9500 photometers... ~ USER M,\NUAI.
User Manual
page
Irrigation Pond ManagementIrrigation Model
Proactive management of the pond volume/level
Default
concentration levels remained relatively stable in the other bore. The third bore
remained dry for the entire monitoring period, which could potentially be attributed to the relatively
low rainfall in the area during the past year.
32. Lake Taumaha sample analysis demonstrates that the surface water quality continues to remain stable
and unaffected by the landfarming activities.
33. Soil sample analysis found that further bioremediation would be required prior to surrender of the