on reworked dune fields. The Waikaikai Stream flows
approximately through the centre of the site. The proximity of the site to this
recognised ecosystem has been taken into account in the setting of buffer distances
and location of the stockpiling facilities.
The predominant soil type has been identified as black loamy sand and vegetation
growth is primarily pasture. Average annual rainfall for the site is 1043 mm (taken
from the nearby ‘Patea’ monitoring station). As with the other
NPDC Colson Road Landfill Annual Report 2022-2023
Waitaha Catchment Annual Report 2021-2022
Regional Transport agenda September 2021
paddocks (green) and
regular paddocks (blue). 20
Figure 7 The average volume of wastewater discharged to the Kahouri Stream in
relation to stream flow and the 100:1 consent limit 22
Figure 8 The volume of wastewater irrigated to land and discharged to water,
compared with the monthly rainfall totals 23
Figure 9 The proportion of wastewater irrigated to land over summer and winter
since November 2011 24
Figure 10 Monthly wastewater volume compared with monthly total kill and total
to COVID lockdowns and extra COVID measures in August and September 2021, followed by an
extended dry period over summer and autumn in Taranaki. A four-yearly shutdown was being undertaken at
the site during suitable rainfall in May and June 2022, and with the number of contractors onsite and extra
COVID measures in place, it was mutually agreed that only offsite samples would be collected by Council.
OMV samples the combined stormwater and oxidation ponds discharge downstream of the final
properties are rural in character. The
nearest towns are Stratford which is 10 km to the south east and Inglewood which is 12 km to the north.
The predominant soil type has been identified as gravelly sand, and vegetation growth transitions from
native forest at the edge of the national park to pasture. The average annual rainfall for the site is 1,942 mm
based on the Stratford meteorological station.
1 The Council has used these
illustrating the wind direction and strength over the Taranaki
Sawmills PM10 monitoring period 99
Figure 13 PM10 results in the vicinity of Taranaki Sawmills site expressed as a
moving 1 hour average 99
Figure 14 PM10, PM10 (24 hour average), and wind direction for ambient monitoring
in the vicinity of Taranaki Sawmills site 100
Figure 15 Rainfall recorded at SH3 in the neighbouring Mangati catchment 101
Figure 16 Property of TBS Coatings Limited, and related monitoring sites 107
Figure 17
Tawhiti catchment consent monitoring report - Taranaki Regional Council.