ring drain had been upgraded since the last
inspection.
The discharge from the WTS was noted as slow and clear.
Overall, the site was considered to be compliant with the consent conditions, although with some site
improvements were required.
16 August 2023
The inspection occurred during periods of rain and hail and the culverts and downstream riffles were found
to be functioning well and providing for fish passage. There were no signs of erosion around the structures,
and they were
Ordinary Council Agenda August 2024
Civil Quarries Everett Rd Quarry resource consent monitoring report 2019-2020
figure of 43mm of
rainfall per hour will be utilised. This is a very conservative figure as values for the top 30 rain
occurrences range from 8.0 to 15mm with the average being 9.4mm (refer Table 2).
Runoff of the falling rain will be influenced by the site’s runoff coefficient. This has been calculated
to be 0.25 as per MBIE Verification Method E1/VM1 (1 January 2017). Remediation (NZ) Ltd
considers this coefficient to be a conservative runoff coefficient as the composting
figure
of 43mm of rainfall per hour will be utilised. This is a very conservative figure as values for the top 30
rain occurrences range from 8.0 to 15mm with the average being 9.4mm (refer Table 2).
Runoff of the falling rain will be influenced by the site’s runoff coefficient. This has been calculated
to be 0.25 as per MBIE Verification Method E1/VM1 (1 January 2017). Remediation (NZ) Ltd
considers this coefficient to be a conservative runoff coefficient as the composting
undertaken on 24 October 2018 47
Table 10 Results of metal analysis undertaken on 6 May 2019 48
Table 11 Results of rain event monitoring – discharge and Puremu Stream samples, 18 September
2018 51
page
iii
Table 12 Results of rain event monitoring - Manganaha Stream, 18 September 2018 51
Table 13 Biomonitoring sites in the Puremu and Manganaha Streams related to the Colson Road
landfill 52
Table 14 Chemical analysis of Colson Road landfill groundwater sampled
nautical miles offshore to include the waters of the territorial sea. There are three district councils within the region — New Plymouth, Stratford and South Taranaki district councils. The area of Stratford district to the east of Pohokura Saddle falls into Manawatu-Whanganui (Horizons) region. Taranaki can offer residents and visitors the opportunity to surf and ski on the same day. Taranaki consists of four distinctive landforms, each of which requires a different type of environmental management.
approval and the environmental effects are minor, a decision on the application will be made by the Council’s Director-Resource Management. It’s important to note that although most applications fall into this ‘non-notified’ category, hundreds of parties are consulted by resource consent applicants in Taranaki each year. If the effects are more than minor or an affected party does not give written approval, the application will have to be notified. People may then make submissions on the application.
4. Company to isolate washwater
from stormwater unless due to
heavy rain events
Inspections of treatment site Yes
5. Location of discharge point Inspections of treatment system and discharge
point Yes
6. Company to adopt best
practicable option
Inspections of treatment system and discharge
point, liaison with Council, sampling of
discharge and receiving waters
Yes
7. Limits quarry catchment area Inspections Yes
page
15
Purpose: To discharge